/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/SleepMap-ConcreteSmt-VarAbsGlobalSmt.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/safe000_power.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.dpor-95ec559 [2023-01-11 14:31:09,094 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-11 14:31:09,095 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-11 14:31:09,123 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2023-01-11 14:31:09,136 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-11 14:31:09,140 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-11 14:31:09,140 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-11 14:31:09,141 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-11 14:31:09,142 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-11 14:31:09,142 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-11 14:31:09,144 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-11 14:31:09,147 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-11 14:31:09,148 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-11 14:31:09,149 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-11 14:31:09,149 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-11 14:31:09,150 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-11 14:31:09,156 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-01-11 14:31:09,162 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-11 14:31:09,163 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-11 14:31:09,163 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-11 14:31:09,164 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/SleepMap-ConcreteSmt-VarAbsGlobalSmt.epf [2023-01-11 14:31:09,208 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-11 14:31:09,208 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-11 14:31:09,221 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-01-11 14:31:09,221 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-01-11 14:31:09,226 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-11 14:31:09,226 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-11 14:31:09,226 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-11 14:31:09,226 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-11 14:31:09,226 INFO L138 SettingsManager]: * Use SBE=true [2023-01-11 14:31:09,226 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-11 14:31:09,227 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-11 14:31:09,227 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-11 14:31:09,227 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-11 14:31:09,227 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-11 14:31:09,227 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-11 14:31:09,227 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-11 14:31:09,227 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-11 14:31:09,228 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-11 14:31:09,228 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-11 14:31:09,228 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-11 14:31:09,228 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-11 14:31:09,230 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-11 14:31:09,230 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-11 14:31:09,230 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-11 14:31:09,230 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-11 14:31:09,230 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-11 14:31:09,230 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-11 14:31:09,230 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-11 14:31:09,231 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-11 14:31:09,231 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-11 14:31:09,231 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-11 14:31:09,231 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-01-11 14:31:09,231 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2023-01-11 14:31:09,231 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-01-11 14:31:09,231 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-01-11 14:31:09,231 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION [2023-01-11 14:31:09,231 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2023-01-11 14:31:09,231 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-11 14:31:09,231 INFO L138 SettingsManager]: * Number of independence relations to use for POR=2 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Pointer base address is valid at dereference -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Pointer to allocated memory at dereference -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check array bounds for arrays that are off heap -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check if freed pointer was valid -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Adapt memory model on pointer casts if necessary -> true [2023-01-11 14:31:09,423 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-11 14:31:09,440 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-11 14:31:09,442 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-11 14:31:09,443 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-11 14:31:09,443 INFO L275 PluginConnector]: CDTParser initialized [2023-01-11 14:31:09,444 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe000_power.oepc.i [2023-01-11 14:31:10,462 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-11 14:31:10,665 INFO L351 CDTParser]: Found 1 translation units. [2023-01-11 14:31:10,666 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe000_power.oepc.i [2023-01-11 14:31:10,675 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81692c1b2/1e7bbf82e5784150a039da24a38f7e43/FLAGb453ea61b [2023-01-11 14:31:10,684 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81692c1b2/1e7bbf82e5784150a039da24a38f7e43 [2023-01-11 14:31:10,686 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-11 14:31:10,687 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-11 14:31:10,687 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-11 14:31:10,687 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-11 14:31:10,694 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-11 14:31:10,694 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 02:31:10" (1/1) ... [2023-01-11 14:31:10,695 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ca75220 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:31:10, skipping insertion in model container [2023-01-11 14:31:10,695 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 02:31:10" (1/1) ... [2023-01-11 14:31:10,699 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-11 14:31:10,724 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-11 14:31:10,817 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/safe000_power.oepc.i[995,1008] [2023-01-11 14:31:11,012 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-11 14:31:11,021 INFO L203 MainTranslator]: Completed pre-run [2023-01-11 14:31:11,029 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/safe000_power.oepc.i[995,1008] [2023-01-11 14:31:11,071 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-11 14:31:11,091 WARN L663 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-01-11 14:31:11,091 WARN L663 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-01-11 14:31:11,096 INFO L208 MainTranslator]: Completed translation [2023-01-11 14:31:11,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:31:11 WrapperNode [2023-01-11 14:31:11,097 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-11 14:31:11,098 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-11 14:31:11,098 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-11 14:31:11,098 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-11 14:31:11,102 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:31:11" (1/1) ... [2023-01-11 14:31:11,128 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:31:11" (1/1) ... [2023-01-11 14:31:11,156 INFO L138 Inliner]: procedures = 176, calls = 84, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 170 [2023-01-11 14:31:11,159 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-11 14:31:11,160 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-11 14:31:11,160 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-11 14:31:11,161 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-11 14:31:11,167 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:31:11" (1/1) ... [2023-01-11 14:31:11,167 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:31:11" (1/1) ... [2023-01-11 14:31:11,179 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:31:11" (1/1) ... [2023-01-11 14:31:11,180 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:31:11" (1/1) ... [2023-01-11 14:31:11,194 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:31:11" (1/1) ... [2023-01-11 14:31:11,195 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:31:11" (1/1) ... [2023-01-11 14:31:11,197 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:31:11" (1/1) ... [2023-01-11 14:31:11,199 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:31:11" (1/1) ... [2023-01-11 14:31:11,214 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-11 14:31:11,215 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-11 14:31:11,215 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-11 14:31:11,215 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-11 14:31:11,215 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:31:11" (1/1) ... [2023-01-11 14:31:11,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-11 14:31:11,229 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 14:31:11,276 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) [2023-01-11 14:31:11,296 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 [2023-01-11 14:31:11,307 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-11 14:31:11,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-11 14:31:11,308 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-01-11 14:31:11,308 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-11 14:31:11,308 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-11 14:31:11,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-11 14:31:11,308 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-01-11 14:31:11,308 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-01-11 14:31:11,308 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-01-11 14:31:11,308 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-01-11 14:31:11,309 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-01-11 14:31:11,309 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-01-11 14:31:11,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-11 14:31:11,309 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-01-11 14:31:11,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-11 14:31:11,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-11 14:31:11,310 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-01-11 14:31:11,473 INFO L236 CfgBuilder]: Building ICFG [2023-01-11 14:31:11,475 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-11 14:31:11,953 INFO L277 CfgBuilder]: Performing block encoding [2023-01-11 14:31:12,429 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-11 14:31:12,430 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-01-11 14:31:12,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 02:31:12 BoogieIcfgContainer [2023-01-11 14:31:12,431 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-11 14:31:12,433 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-11 14:31:12,433 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-11 14:31:12,435 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-11 14:31:12,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 02:31:10" (1/3) ... [2023-01-11 14:31:12,435 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@192b1b91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 02:31:12, skipping insertion in model container [2023-01-11 14:31:12,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:31:11" (2/3) ... [2023-01-11 14:31:12,435 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@192b1b91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 02:31:12, skipping insertion in model container [2023-01-11 14:31:12,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 02:31:12" (3/3) ... [2023-01-11 14:31:12,436 INFO L112 eAbstractionObserver]: Analyzing ICFG safe000_power.oepc.i [2023-01-11 14:31:12,445 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-01-11 14:31:12,451 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-11 14:31:12,451 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 64 error locations. [2023-01-11 14:31:12,452 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-11 14:31:12,576 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-11 14:31:12,612 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:12,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-11 14:31:12,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 14:31:12,615 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) [2023-01-11 14:31:12,637 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 [2023-01-11 14:31:12,666 INFO L100 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:12,671 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2023-01-11 14:31:12,672 WARN L167 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2023-01-11 14:31:12,672 WARN L168 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2023-01-11 14:31:12,679 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-11 14:31:12,683 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;@5ffab150, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:12,683 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-11 14:31:12,686 WARN L125 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2023-01-11 14:31:12,688 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-11 14:31:12,694 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-01-11 14:31:12,695 INFO L307 ceAbstractionStarter]: Result for error location P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (1/107) [2023-01-11 14:31:12,700 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:12,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-11 14:31:12,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 14:31:12,741 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) [2023-01-11 14:31:12,742 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 [2023-01-11 14:31:12,745 INFO L100 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:12,746 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2023-01-11 14:31:12,746 WARN L167 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2023-01-11 14:31:12,746 WARN L168 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2023-01-11 14:31:12,746 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-11 14:31:12,746 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;@5ffab150, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:12,747 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-11 14:31:12,747 WARN L125 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2023-01-11 14:31:12,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-11 14:31:12,749 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-01-11 14:31:12,749 INFO L307 ceAbstractionStarter]: Result for error location P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (2/107) [2023-01-11 14:31:12,752 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:12,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-11 14:31:12,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 14:31:12,760 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) [2023-01-11 14:31:12,760 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 [2023-01-11 14:31:12,763 INFO L100 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:12,764 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2023-01-11 14:31:12,764 WARN L167 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2023-01-11 14:31:12,764 WARN L168 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2023-01-11 14:31:12,764 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P0Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-11 14:31:12,765 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;@5ffab150, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:12,765 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-11 14:31:12,765 WARN L125 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2023-01-11 14:31:12,765 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-11 14:31:12,767 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-01-11 14:31:12,767 INFO L307 ceAbstractionStarter]: Result for error location P0Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (3/107) [2023-01-11 14:31:12,770 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:12,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-11 14:31:12,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 14:31:12,781 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) [2023-01-11 14:31:12,783 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 [2023-01-11 14:31:12,786 INFO L100 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:12,787 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2023-01-11 14:31:12,787 WARN L167 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2023-01-11 14:31:12,787 WARN L168 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2023-01-11 14:31:12,787 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P0Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-11 14:31:12,788 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;@5ffab150, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:12,788 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-11 14:31:12,788 WARN L125 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2023-01-11 14:31:12,788 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-11 14:31:12,789 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-01-11 14:31:12,790 INFO L307 ceAbstractionStarter]: Result for error location P0Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (4/107) [2023-01-11 14:31:12,798 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:12,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-11 14:31:12,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 14:31:12,800 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) [2023-01-11 14:31:12,801 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 [2023-01-11 14:31:12,803 INFO L100 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:12,804 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2023-01-11 14:31:12,804 WARN L167 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2023-01-11 14:31:12,804 WARN L168 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2023-01-11 14:31:12,805 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P0Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-11 14:31:12,805 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;@5ffab150, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:12,805 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-11 14:31:12,805 WARN L125 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2023-01-11 14:31:12,805 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-11 14:31:12,806 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-01-11 14:31:12,806 INFO L307 ceAbstractionStarter]: Result for error location P0Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (5/107) [2023-01-11 14:31:12,809 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:12,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-11 14:31:12,809 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 14:31:12,816 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) [2023-01-11 14:31:12,818 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 [2023-01-11 14:31:12,819 INFO L100 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:12,820 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2023-01-11 14:31:12,820 WARN L167 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2023-01-11 14:31:12,820 WARN L168 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2023-01-11 14:31:12,820 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P0Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-11 14:31:12,821 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;@5ffab150, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:12,821 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-11 14:31:12,821 WARN L125 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2023-01-11 14:31:12,821 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-11 14:31:12,822 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-01-11 14:31:12,822 INFO L307 ceAbstractionStarter]: Result for error location P0Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (6/107) [2023-01-11 14:31:12,824 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:12,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-11 14:31:12,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 14:31:12,834 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) [2023-01-11 14:31:12,835 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 [2023-01-11 14:31:12,839 INFO L100 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:12,840 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2023-01-11 14:31:12,840 WARN L167 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2023-01-11 14:31:12,840 WARN L168 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2023-01-11 14:31:12,840 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P0Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-11 14:31:12,840 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;@5ffab150, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:12,840 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-11 14:31:12,841 WARN L125 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2023-01-11 14:31:12,841 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-11 14:31:12,842 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-01-11 14:31:12,842 INFO L307 ceAbstractionStarter]: Result for error location P0Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (7/107) [2023-01-11 14:31:12,846 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:12,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-11 14:31:12,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 14:31:12,847 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) [2023-01-11 14:31:12,848 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 [2023-01-11 14:31:12,851 INFO L100 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:12,852 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2023-01-11 14:31:12,852 WARN L167 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2023-01-11 14:31:12,852 WARN L168 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2023-01-11 14:31:12,852 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P0Err7REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-11 14:31:12,853 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;@5ffab150, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:12,853 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-11 14:31:12,853 WARN L125 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2023-01-11 14:31:12,853 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-11 14:31:12,854 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-01-11 14:31:12,854 INFO L307 ceAbstractionStarter]: Result for error location P0Err7REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (8/107) [2023-01-11 14:31:12,856 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:12,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-11 14:31:12,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 14:31:12,858 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) [2023-01-11 14:31:12,859 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 [2023-01-11 14:31:12,862 INFO L100 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:12,863 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2023-01-11 14:31:12,863 WARN L167 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2023-01-11 14:31:12,863 WARN L168 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2023-01-11 14:31:12,863 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P0Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-11 14:31:12,863 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;@5ffab150, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:12,864 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-11 14:31:12,864 WARN L125 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2023-01-11 14:31:12,864 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-11 14:31:12,864 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-01-11 14:31:12,865 INFO L307 ceAbstractionStarter]: Result for error location P0Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (9/107) [2023-01-11 14:31:12,867 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:12,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-11 14:31:12,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 14:31:12,871 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) [2023-01-11 14:31:12,874 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 [2023-01-11 14:31:12,882 INFO L100 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:12,884 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2023-01-11 14:31:12,884 WARN L167 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2023-01-11 14:31:12,884 WARN L168 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2023-01-11 14:31:12,884 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P0Err9REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-11 14:31:12,884 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;@5ffab150, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:12,884 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-11 14:31:12,884 WARN L125 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2023-01-11 14:31:12,885 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-11 14:31:12,885 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-01-11 14:31:12,886 INFO L307 ceAbstractionStarter]: Result for error location P0Err9REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (10/107) [2023-01-11 14:31:12,887 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:12,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-11 14:31:12,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 14:31:12,894 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) [2023-01-11 14:31:12,907 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 [2023-01-11 14:31:12,909 INFO L100 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:12,909 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2023-01-11 14:31:12,910 WARN L167 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2023-01-11 14:31:12,910 WARN L168 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2023-01-11 14:31:12,910 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P0Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-11 14:31:12,910 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;@5ffab150, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:12,910 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-11 14:31:12,910 WARN L125 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2023-01-11 14:31:12,910 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-11 14:31:12,911 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-01-11 14:31:12,911 INFO L307 ceAbstractionStarter]: Result for error location P0Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (11/107) [2023-01-11 14:31:12,913 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:12,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-11 14:31:12,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 14:31:12,916 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) [2023-01-11 14:31:12,918 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 [2023-01-11 14:31:12,920 INFO L100 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:12,920 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2023-01-11 14:31:12,920 WARN L167 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2023-01-11 14:31:12,920 WARN L168 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2023-01-11 14:31:12,921 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P0Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-11 14:31:12,921 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;@5ffab150, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:12,921 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-11 14:31:12,921 WARN L125 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2023-01-11 14:31:12,921 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-11 14:31:12,922 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-01-11 14:31:12,923 INFO L307 ceAbstractionStarter]: Result for error location P0Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (12/107) [2023-01-11 14:31:12,927 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:12,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-11 14:31:12,927 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 14:31:12,940 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) [2023-01-11 14:31:12,941 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 [2023-01-11 14:31:12,943 INFO L100 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:12,944 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2023-01-11 14:31:12,944 WARN L167 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2023-01-11 14:31:12,944 WARN L168 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2023-01-11 14:31:12,944 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P0Err12REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-11 14:31:12,944 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;@5ffab150, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:12,944 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-11 14:31:12,945 WARN L125 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2023-01-11 14:31:12,945 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-11 14:31:12,945 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-01-11 14:31:12,946 INFO L307 ceAbstractionStarter]: Result for error location P0Err12REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (13/107) [2023-01-11 14:31:12,947 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:12,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-11 14:31:12,948 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 14:31:12,951 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) [2023-01-11 14:31:12,952 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 [2023-01-11 14:31:12,954 INFO L100 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:12,955 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2023-01-11 14:31:12,955 WARN L167 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2023-01-11 14:31:12,955 WARN L168 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2023-01-11 14:31:12,955 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P0Err13REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-11 14:31:12,955 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;@5ffab150, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:12,955 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-11 14:31:12,955 WARN L125 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2023-01-11 14:31:12,956 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-11 14:31:12,956 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-01-11 14:31:12,957 INFO L307 ceAbstractionStarter]: Result for error location P0Err13REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (14/107) [2023-01-11 14:31:12,959 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:12,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-11 14:31:12,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 14:31:12,962 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) [2023-01-11 14:31:12,963 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 [2023-01-11 14:31:12,969 INFO L100 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:12,970 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2023-01-11 14:31:12,970 WARN L167 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2023-01-11 14:31:12,970 WARN L168 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2023-01-11 14:31:12,970 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P0Err14REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-11 14:31:12,970 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;@5ffab150, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:12,970 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-11 14:31:12,970 WARN L125 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2023-01-11 14:31:12,971 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-11 14:31:12,971 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-01-11 14:31:12,971 INFO L307 ceAbstractionStarter]: Result for error location P0Err14REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (15/107) [2023-01-11 14:31:12,973 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:12,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-11 14:31:12,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 14:31:12,977 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) [2023-01-11 14:31:12,978 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 [2023-01-11 14:31:12,980 INFO L100 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:12,981 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2023-01-11 14:31:12,981 WARN L167 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2023-01-11 14:31:12,981 WARN L168 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2023-01-11 14:31:12,981 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P0Err15REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-11 14:31:12,981 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;@5ffab150, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:12,981 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-11 14:31:12,981 WARN L125 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2023-01-11 14:31:12,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-11 14:31:12,982 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-01-11 14:31:12,982 INFO L307 ceAbstractionStarter]: Result for error location P0Err15REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (16/107) [2023-01-11 14:31:12,984 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:12,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-11 14:31:12,984 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 14:31:12,994 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) [2023-01-11 14:31:12,995 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 [2023-01-11 14:31:12,997 INFO L100 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:12,998 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2023-01-11 14:31:12,998 WARN L167 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2023-01-11 14:31:12,998 WARN L168 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2023-01-11 14:31:12,998 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-11 14:31:12,998 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;@5ffab150, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:12,998 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-11 14:31:12,998 WARN L125 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2023-01-11 14:31:12,999 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-11 14:31:12,999 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-01-11 14:31:12,999 INFO L307 ceAbstractionStarter]: Result for error location P1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (17/107) [2023-01-11 14:31:13,001 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:13,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-11 14:31:13,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 14:31:13,006 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) [2023-01-11 14:31:13,008 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 [2023-01-11 14:31:13,010 INFO L100 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:13,011 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2023-01-11 14:31:13,011 WARN L167 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2023-01-11 14:31:13,011 WARN L168 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2023-01-11 14:31:13,011 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-11 14:31:13,011 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;@5ffab150, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:13,011 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-11 14:31:13,011 WARN L125 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2023-01-11 14:31:13,011 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-11 14:31:13,048 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-01-11 14:31:13,049 INFO L307 ceAbstractionStarter]: Result for error location P1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (18/107) [2023-01-11 14:31:13,050 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:13,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-11 14:31:13,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 14:31:13,054 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) [2023-01-11 14:31:13,068 INFO L100 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:13,069 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2023-01-11 14:31:13,069 WARN L167 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2023-01-11 14:31:13,069 WARN L168 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2023-01-11 14:31:13,069 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-11 14:31:13,069 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;@5ffab150, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:13,069 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-11 14:31:13,070 WARN L125 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2023-01-11 14:31:13,070 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-11 14:31:13,070 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-01-11 14:31:13,071 INFO L307 ceAbstractionStarter]: Result for error location P1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (19/107) [2023-01-11 14:31:13,072 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:13,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-11 14:31:13,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 14:31:13,074 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 [2023-01-11 14:31:13,078 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) [2023-01-11 14:31:13,087 INFO L100 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:13,088 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2023-01-11 14:31:13,088 WARN L167 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2023-01-11 14:31:13,088 WARN L168 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2023-01-11 14:31:13,088 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P1Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-11 14:31:13,088 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;@5ffab150, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:13,088 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-11 14:31:13,088 WARN L125 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2023-01-11 14:31:13,089 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-11 14:31:13,089 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-01-11 14:31:13,090 INFO L307 ceAbstractionStarter]: Result for error location P1Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (20/107) [2023-01-11 14:31:13,091 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:13,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-11 14:31:13,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 14:31:13,096 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) [2023-01-11 14:31:13,096 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 [2023-01-11 14:31:13,099 INFO L100 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:13,100 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2023-01-11 14:31:13,100 WARN L167 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2023-01-11 14:31:13,100 WARN L168 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2023-01-11 14:31:13,101 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P1Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-11 14:31:13,101 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;@5ffab150, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:13,101 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-11 14:31:13,101 WARN L125 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2023-01-11 14:31:13,101 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-11 14:31:13,102 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-01-11 14:31:13,102 INFO L307 ceAbstractionStarter]: Result for error location P1Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (21/107) [2023-01-11 14:31:13,104 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:13,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-11 14:31:13,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 14:31:13,097 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 [2023-01-11 14:31:13,113 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) [2023-01-11 14:31:13,117 INFO L100 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:13,118 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2023-01-11 14:31:13,118 WARN L167 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2023-01-11 14:31:13,118 WARN L168 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2023-01-11 14:31:13,118 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P1Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-11 14:31:13,118 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;@5ffab150, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:13,119 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-11 14:31:13,119 WARN L125 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2023-01-11 14:31:13,119 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-11 14:31:13,119 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-01-11 14:31:13,120 INFO L307 ceAbstractionStarter]: Result for error location P1Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (22/107) [2023-01-11 14:31:13,121 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:13,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-11 14:31:13,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 14:31:13,123 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 [2023-01-11 14:31:13,127 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) [2023-01-11 14:31:13,136 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 [2023-01-11 14:31:13,137 INFO L100 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:13,138 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2023-01-11 14:31:13,138 WARN L167 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2023-01-11 14:31:13,138 WARN L168 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2023-01-11 14:31:13,138 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-11 14:31:13,138 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;@5ffab150, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:13,138 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-11 14:31:13,138 WARN L125 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2023-01-11 14:31:13,138 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-11 14:31:13,139 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-01-11 14:31:13,139 INFO L307 ceAbstractionStarter]: Result for error location P2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (23/107) [2023-01-11 14:31:13,143 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:13,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-11 14:31:13,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 14:31:13,147 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) [2023-01-11 14:31:13,148 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 [2023-01-11 14:31:13,152 INFO L100 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:13,153 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2023-01-11 14:31:13,153 WARN L167 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2023-01-11 14:31:13,153 WARN L168 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2023-01-11 14:31:13,153 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-11 14:31:13,153 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;@5ffab150, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:13,153 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-11 14:31:13,154 WARN L125 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2023-01-11 14:31:13,154 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-11 14:31:13,154 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-01-11 14:31:13,154 INFO L307 ceAbstractionStarter]: Result for error location P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (24/107) [2023-01-11 14:31:13,156 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:13,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-11 14:31:13,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 14:31:13,161 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) [2023-01-11 14:31:13,164 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 [2023-01-11 14:31:13,165 INFO L100 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:13,174 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2023-01-11 14:31:13,174 WARN L167 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2023-01-11 14:31:13,174 WARN L168 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2023-01-11 14:31:13,174 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-11 14:31:13,174 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;@5ffab150, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:13,175 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-11 14:31:13,175 WARN L125 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2023-01-11 14:31:13,175 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-11 14:31:13,175 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-01-11 14:31:13,176 INFO L307 ceAbstractionStarter]: Result for error location P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (25/107) [2023-01-11 14:31:13,177 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:13,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-11 14:31:13,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 14:31:13,181 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) [2023-01-11 14:31:13,181 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 [2023-01-11 14:31:13,183 INFO L100 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:13,184 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2023-01-11 14:31:13,184 WARN L167 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2023-01-11 14:31:13,184 WARN L168 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2023-01-11 14:31:13,184 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-11 14:31:13,184 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;@5ffab150, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:13,184 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-11 14:31:13,185 WARN L125 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2023-01-11 14:31:13,185 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-11 14:31:13,185 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-01-11 14:31:13,185 INFO L307 ceAbstractionStarter]: Result for error location P2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (26/107) [2023-01-11 14:31:13,187 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:13,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-11 14:31:13,187 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 14:31:13,191 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) [2023-01-11 14:31:13,192 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 [2023-01-11 14:31:13,198 INFO L100 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:13,199 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2023-01-11 14:31:13,199 WARN L167 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2023-01-11 14:31:13,199 WARN L168 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2023-01-11 14:31:13,199 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P2Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-11 14:31:13,199 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;@5ffab150, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:13,199 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-11 14:31:13,199 WARN L125 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2023-01-11 14:31:13,200 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-11 14:31:13,200 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-01-11 14:31:13,201 INFO L307 ceAbstractionStarter]: Result for error location P2Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (27/107) [2023-01-11 14:31:13,202 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:13,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-11 14:31:13,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 14:31:13,211 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) [2023-01-11 14:31:13,217 INFO L100 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:13,218 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2023-01-11 14:31:13,218 WARN L167 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2023-01-11 14:31:13,218 WARN L168 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2023-01-11 14:31:13,218 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P2Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-11 14:31:13,218 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;@5ffab150, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:13,218 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-11 14:31:13,218 WARN L125 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2023-01-11 14:31:13,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-11 14:31:13,219 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-01-11 14:31:13,219 INFO L307 ceAbstractionStarter]: Result for error location P2Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (28/107) [2023-01-11 14:31:13,221 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:13,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-11 14:31:13,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 14:31:13,225 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) [2023-01-11 14:31:13,226 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 [2023-01-11 14:31:13,228 INFO L100 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:13,228 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2023-01-11 14:31:13,228 WARN L167 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2023-01-11 14:31:13,228 WARN L168 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2023-01-11 14:31:13,228 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P2Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-11 14:31:13,229 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;@5ffab150, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:13,229 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-11 14:31:13,229 WARN L125 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2023-01-11 14:31:13,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-11 14:31:13,229 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-01-11 14:31:13,230 INFO L307 ceAbstractionStarter]: Result for error location P2Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (29/107) [2023-01-11 14:31:13,231 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:13,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-11 14:31:13,231 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 14:31:13,226 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 [2023-01-11 14:31:13,238 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) [2023-01-11 14:31:13,246 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 [2023-01-11 14:31:13,247 INFO L100 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:13,248 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2023-01-11 14:31:13,248 WARN L167 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2023-01-11 14:31:13,248 WARN L168 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2023-01-11 14:31:13,248 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P2Err7REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-11 14:31:13,248 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;@5ffab150, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:13,248 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-11 14:31:13,248 WARN L125 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2023-01-11 14:31:13,249 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-11 14:31:13,249 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-01-11 14:31:13,249 INFO L307 ceAbstractionStarter]: Result for error location P2Err7REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (30/107) [2023-01-11 14:31:13,251 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:13,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-11 14:31:13,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 14:31:13,254 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) [2023-01-11 14:31:13,255 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 [2023-01-11 14:31:13,258 INFO L100 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:13,258 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2023-01-11 14:31:13,258 WARN L167 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2023-01-11 14:31:13,258 WARN L168 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2023-01-11 14:31:13,259 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P2Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-11 14:31:13,259 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;@5ffab150, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:13,259 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-11 14:31:13,259 WARN L125 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2023-01-11 14:31:13,259 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-11 14:31:13,260 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-01-11 14:31:13,260 INFO L307 ceAbstractionStarter]: Result for error location P2Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (31/107) [2023-01-11 14:31:13,265 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:13,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-11 14:31:13,265 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 14:31:13,276 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) [2023-01-11 14:31:13,277 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 [2023-01-11 14:31:13,282 INFO L100 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:13,283 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2023-01-11 14:31:13,283 WARN L167 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2023-01-11 14:31:13,283 WARN L168 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2023-01-11 14:31:13,283 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P2Err9REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-11 14:31:13,283 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;@5ffab150, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:13,283 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-11 14:31:13,284 WARN L125 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2023-01-11 14:31:13,284 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-11 14:31:13,284 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-01-11 14:31:13,284 INFO L307 ceAbstractionStarter]: Result for error location P2Err9REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (32/107) [2023-01-11 14:31:13,286 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:13,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-11 14:31:13,286 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 14:31:13,291 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) [2023-01-11 14:31:13,292 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 [2023-01-11 14:31:13,301 INFO L100 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:13,302 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2023-01-11 14:31:13,302 WARN L167 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2023-01-11 14:31:13,302 WARN L168 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2023-01-11 14:31:13,302 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P2Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-11 14:31:13,302 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;@5ffab150, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:13,302 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-11 14:31:13,302 WARN L125 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2023-01-11 14:31:13,302 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-11 14:31:13,303 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-01-11 14:31:13,303 INFO L307 ceAbstractionStarter]: Result for error location P2Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (33/107) [2023-01-11 14:31:13,305 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:13,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-11 14:31:13,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 14:31:13,311 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) [2023-01-11 14:31:13,312 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 [2023-01-11 14:31:13,314 INFO L100 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:13,314 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2023-01-11 14:31:13,314 WARN L167 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2023-01-11 14:31:13,314 WARN L168 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2023-01-11 14:31:13,314 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P2Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-11 14:31:13,315 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;@5ffab150, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:13,315 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-11 14:31:13,315 WARN L125 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2023-01-11 14:31:13,315 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-11 14:31:13,315 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-01-11 14:31:13,316 INFO L307 ceAbstractionStarter]: Result for error location P2Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (34/107) [2023-01-11 14:31:13,317 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:13,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-11 14:31:13,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 14:31:13,322 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) [2023-01-11 14:31:13,323 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 [2023-01-11 14:31:13,326 INFO L100 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:13,327 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2023-01-11 14:31:13,327 WARN L167 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2023-01-11 14:31:13,327 WARN L168 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2023-01-11 14:31:13,327 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P2Err12REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-11 14:31:13,327 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;@5ffab150, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:13,327 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-11 14:31:13,327 WARN L125 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2023-01-11 14:31:13,327 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-11 14:31:13,328 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-01-11 14:31:13,328 INFO L307 ceAbstractionStarter]: Result for error location P2Err12REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (35/107) [2023-01-11 14:31:13,330 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:13,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-11 14:31:13,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 14:31:13,335 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) [2023-01-11 14:31:13,341 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 [2023-01-11 14:31:13,343 INFO L100 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:13,343 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2023-01-11 14:31:13,343 WARN L167 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2023-01-11 14:31:13,343 WARN L168 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2023-01-11 14:31:13,344 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P2Err13REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-11 14:31:13,344 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;@5ffab150, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:13,344 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-11 14:31:13,344 WARN L125 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2023-01-11 14:31:13,344 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-11 14:31:13,345 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-01-11 14:31:13,345 INFO L307 ceAbstractionStarter]: Result for error location P2Err13REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (36/107) [2023-01-11 14:31:13,346 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:13,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-11 14:31:13,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 14:31:13,352 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) [2023-01-11 14:31:13,361 INFO L100 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:13,361 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2023-01-11 14:31:13,361 WARN L167 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2023-01-11 14:31:13,361 WARN L168 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2023-01-11 14:31:13,361 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P2Err14REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-11 14:31:13,362 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;@5ffab150, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:13,362 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-11 14:31:13,362 WARN L125 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2023-01-11 14:31:13,362 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-11 14:31:13,362 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-01-11 14:31:13,363 INFO L307 ceAbstractionStarter]: Result for error location P2Err14REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (37/107) [2023-01-11 14:31:13,364 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:13,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-11 14:31:13,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 14:31:13,371 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 [2023-01-11 14:31:13,372 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) [2023-01-11 14:31:13,377 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 [2023-01-11 14:31:13,381 INFO L100 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:13,381 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2023-01-11 14:31:13,381 WARN L167 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2023-01-11 14:31:13,381 WARN L168 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2023-01-11 14:31:13,382 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P2Err15REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-11 14:31:13,382 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;@5ffab150, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:13,382 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-11 14:31:13,382 WARN L125 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2023-01-11 14:31:13,382 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-11 14:31:13,383 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-01-11 14:31:13,383 INFO L307 ceAbstractionStarter]: Result for error location P2Err15REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (38/107) [2023-01-11 14:31:13,384 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:13,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-11 14:31:13,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 14:31:13,387 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) [2023-01-11 14:31:13,395 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 [2023-01-11 14:31:13,396 INFO L100 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:13,397 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2023-01-11 14:31:13,397 WARN L167 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2023-01-11 14:31:13,397 WARN L168 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2023-01-11 14:31:13,397 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P2Err16REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-11 14:31:13,397 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;@5ffab150, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:13,397 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-11 14:31:13,398 WARN L125 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2023-01-11 14:31:13,398 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-11 14:31:13,398 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-01-11 14:31:13,398 INFO L307 ceAbstractionStarter]: Result for error location P2Err16REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (39/107) [2023-01-11 14:31:13,400 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:13,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-11 14:31:13,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 14:31:13,403 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) [2023-01-11 14:31:13,404 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 [2023-01-11 14:31:13,406 INFO L100 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:13,406 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2023-01-11 14:31:13,406 WARN L167 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2023-01-11 14:31:13,406 WARN L168 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2023-01-11 14:31:13,406 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P2Err17REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-11 14:31:13,406 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;@5ffab150, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:13,407 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-11 14:31:13,407 WARN L125 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2023-01-11 14:31:13,407 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-11 14:31:13,407 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-01-11 14:31:13,407 INFO L307 ceAbstractionStarter]: Result for error location P2Err17REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (40/107) [2023-01-11 14:31:13,410 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:13,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-11 14:31:13,410 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 14:31:13,413 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) [2023-01-11 14:31:13,414 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 [2023-01-11 14:31:13,417 INFO L100 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:13,417 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2023-01-11 14:31:13,417 WARN L167 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2023-01-11 14:31:13,418 WARN L168 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2023-01-11 14:31:13,418 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-11 14:31:13,418 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;@5ffab150, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:13,418 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-11 14:31:13,475 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE] === [2023-01-11 14:31:13,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-11 14:31:13,481 INFO L85 PathProgramCache]: Analyzing trace with hash 1330877481, now seen corresponding path program 1 times [2023-01-11 14:31:13,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-11 14:31:13,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351132041] [2023-01-11 14:31:13,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-11 14:31:13,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-11 14:31:13,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-11 14:31:13,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-11 14:31:13,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-11 14:31:13,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351132041] [2023-01-11 14:31:13,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351132041] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-11 14:31:13,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-11 14:31:13,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-11 14:31:13,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188031169] [2023-01-11 14:31:13,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-11 14:31:13,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-11 14:31:13,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-11 14:31:13,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-11 14:31:13,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-11 14:31:13,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 14:31:13,785 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-11 14:31:13,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 29.0) internal successors, (58), 3 states have internal predecessors, (58), 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) [2023-01-11 14:31:13,786 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-11 14:31:13,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-11 14:31:13,814 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-11 14:31:13,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-11 14:31:13,817 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-11 14:31:13,817 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (41/107) [2023-01-11 14:31:13,819 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:13,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-11 14:31:13,819 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 14:31:13,821 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) [2023-01-11 14:31:13,822 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 [2023-01-11 14:31:13,824 INFO L100 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:13,825 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2023-01-11 14:31:13,825 WARN L167 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2023-01-11 14:31:13,825 WARN L168 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2023-01-11 14:31:13,825 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-11 14:31:13,825 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;@5ffab150, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:13,825 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-11 14:31:13,835 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE] === [2023-01-11 14:31:13,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-11 14:31:13,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1330877482, now seen corresponding path program 1 times [2023-01-11 14:31:13,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-11 14:31:13,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143909161] [2023-01-11 14:31:13,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-11 14:31:13,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-11 14:31:13,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-11 14:31:13,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-11 14:31:13,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-11 14:31:13,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143909161] [2023-01-11 14:31:13,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143909161] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-11 14:31:13,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-11 14:31:13,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-11 14:31:13,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971956367] [2023-01-11 14:31:13,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-11 14:31:13,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-11 14:31:13,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-11 14:31:13,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-11 14:31:13,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-11 14:31:13,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 14:31:13,956 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-11 14:31:13,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 29.0) internal successors, (58), 3 states have internal predecessors, (58), 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) [2023-01-11 14:31:13,957 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-11 14:31:13,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-11 14:31:13,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-11 14:31:13,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-11 14:31:13,984 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-11 14:31:13,985 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (42/107) [2023-01-11 14:31:13,987 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:13,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-11 14:31:13,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 14:31:13,990 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) [2023-01-11 14:31:13,992 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 [2023-01-11 14:31:13,994 INFO L100 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:13,994 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2023-01-11 14:31:13,994 WARN L167 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2023-01-11 14:31:13,995 WARN L168 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2023-01-11 14:31:13,995 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-11 14:31:13,995 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;@5ffab150, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:13,995 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-11 14:31:27,846 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE] === [2023-01-11 14:31:27,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-11 14:31:27,846 INFO L85 PathProgramCache]: Analyzing trace with hash 2076691411, now seen corresponding path program 1 times [2023-01-11 14:31:27,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-11 14:31:27,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871101464] [2023-01-11 14:31:27,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-11 14:31:27,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-11 14:31:27,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-11 14:31:27,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-11 14:31:27,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-11 14:31:27,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871101464] [2023-01-11 14:31:27,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871101464] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-11 14:31:27,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-11 14:31:27,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-11 14:31:27,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703965128] [2023-01-11 14:31:27,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-11 14:31:27,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-11 14:31:27,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-11 14:31:27,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-11 14:31:27,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-11 14:31:27,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 14:31:27,904 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-11 14:31:27,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 32.5) internal successors, (65), 3 states have internal predecessors, (65), 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) [2023-01-11 14:31:27,904 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-11 14:31:53,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-11 14:31:53,849 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-11 14:31:53,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-01-11 14:31:53,851 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-11 14:31:53,852 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (43/107) [2023-01-11 14:31:53,853 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:53,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-11 14:31:53,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 14:31:53,856 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) [2023-01-11 14:31:53,857 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 [2023-01-11 14:31:53,862 INFO L100 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:53,863 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2023-01-11 14:31:53,863 WARN L167 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2023-01-11 14:31:53,863 WARN L168 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2023-01-11 14:31:53,863 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-11 14:31:53,863 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;@5ffab150, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:31:53,863 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-11 14:32:08,204 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE] === [2023-01-11 14:32:08,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-11 14:32:08,205 INFO L85 PathProgramCache]: Analyzing trace with hash 2076691412, now seen corresponding path program 1 times [2023-01-11 14:32:08,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-11 14:32:08,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983386360] [2023-01-11 14:32:08,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-11 14:32:08,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-11 14:32:08,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-11 14:32:08,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-11 14:32:08,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-11 14:32:08,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983386360] [2023-01-11 14:32:08,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983386360] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-11 14:32:08,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-11 14:32:08,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-11 14:32:08,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529997263] [2023-01-11 14:32:08,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-11 14:32:08,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-11 14:32:08,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-11 14:32:08,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-11 14:32:08,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-11 14:32:08,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 14:32:08,294 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-11 14:32:08,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 32.5) internal successors, (65), 3 states have internal predecessors, (65), 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) [2023-01-11 14:32:08,294 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-11 14:32:34,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-11 14:32:34,443 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-11 14:32:34,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-01-11 14:32:34,444 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-11 14:32:34,444 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (44/107) [2023-01-11 14:32:34,445 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:32:34,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-11 14:32:34,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 14:32:34,479 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) [2023-01-11 14:32:34,480 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 [2023-01-11 14:32:34,485 INFO L100 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:32:34,485 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2023-01-11 14:32:34,486 WARN L167 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2023-01-11 14:32:34,486 WARN L168 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2023-01-11 14:32:34,486 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-11 14:32:34,486 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;@5ffab150, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:32:34,486 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-11 14:32:48,926 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE] === [2023-01-11 14:32:48,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-11 14:32:48,927 INFO L85 PathProgramCache]: Analyzing trace with hash 735056716, now seen corresponding path program 1 times [2023-01-11 14:32:48,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-11 14:32:48,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354372149] [2023-01-11 14:32:48,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-11 14:32:48,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-11 14:32:48,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-11 14:32:48,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-11 14:32:48,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-11 14:32:48,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354372149] [2023-01-11 14:32:48,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354372149] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-11 14:32:48,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-11 14:32:48,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-11 14:32:48,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128776134] [2023-01-11 14:32:48,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-11 14:32:48,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-11 14:32:48,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-11 14:32:48,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-11 14:32:48,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-11 14:32:48,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 14:32:48,991 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-11 14:32:48,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 36.0) internal successors, (72), 3 states have internal predecessors, (72), 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) [2023-01-11 14:32:48,991 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-11 14:32:59,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-11 14:32:59,181 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-11 14:32:59,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-01-11 14:32:59,183 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-11 14:32:59,183 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (45/107) [2023-01-11 14:32:59,185 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:32:59,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-11 14:32:59,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 14:32:59,189 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) [2023-01-11 14:32:59,189 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 [2023-01-11 14:32:59,195 INFO L100 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:32:59,195 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2023-01-11 14:32:59,195 WARN L167 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2023-01-11 14:32:59,195 WARN L168 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2023-01-11 14:32:59,196 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-11 14:32:59,196 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;@5ffab150, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:32:59,196 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-11 14:33:13,598 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE] === [2023-01-11 14:33:13,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-11 14:33:13,598 INFO L85 PathProgramCache]: Analyzing trace with hash 735056717, now seen corresponding path program 1 times [2023-01-11 14:33:13,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-11 14:33:13,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139496041] [2023-01-11 14:33:13,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-11 14:33:13,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-11 14:33:13,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-11 14:33:13,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-11 14:33:13,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-11 14:33:13,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139496041] [2023-01-11 14:33:13,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139496041] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-11 14:33:13,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-11 14:33:13,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-11 14:33:13,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769344592] [2023-01-11 14:33:13,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-11 14:33:13,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-11 14:33:13,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-11 14:33:13,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-11 14:33:13,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-11 14:33:13,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 14:33:13,668 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-11 14:33:13,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 36.0) internal successors, (72), 3 states have internal predecessors, (72), 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) [2023-01-11 14:33:13,669 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-11 14:33:23,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-11 14:33:23,800 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-11 14:33:23,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-01-11 14:33:23,802 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-11 14:33:23,802 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (46/107) [2023-01-11 14:33:23,803 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:33:23,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-11 14:33:23,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 14:33:23,806 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) [2023-01-11 14:33:23,807 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 [2023-01-11 14:33:23,812 INFO L100 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:33:23,812 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2023-01-11 14:33:23,812 WARN L167 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2023-01-11 14:33:23,812 WARN L168 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2023-01-11 14:33:23,812 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-11 14:33:23,813 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;@5ffab150, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:33:23,813 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-11 14:33:40,281 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE] === [2023-01-11 14:33:40,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-11 14:33:40,281 INFO L85 PathProgramCache]: Analyzing trace with hash 10213092, now seen corresponding path program 1 times [2023-01-11 14:33:40,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-11 14:33:40,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247259345] [2023-01-11 14:33:40,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-11 14:33:40,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-11 14:33:40,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-11 14:33:40,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-11 14:33:40,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-11 14:33:40,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247259345] [2023-01-11 14:33:40,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247259345] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-11 14:33:40,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-11 14:33:40,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-11 14:33:40,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648596754] [2023-01-11 14:33:40,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-11 14:33:40,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-01-11 14:33:40,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-11 14:33:40,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-01-11 14:33:40,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-01-11 14:33:40,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 14:33:40,310 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-11 14:33:40,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 41.5) internal successors, (83), 2 states have internal predecessors, (83), 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) [2023-01-11 14:33:40,310 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-11 14:33:41,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 14:33:41,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-01-11 14:33:41,394 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE] === [2023-01-11 14:33:41,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-11 14:33:41,395 INFO L85 PathProgramCache]: Analyzing trace with hash -969500232, now seen corresponding path program 1 times [2023-01-11 14:33:41,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-11 14:33:41,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045513002] [2023-01-11 14:33:41,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-11 14:33:41,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-11 14:33:41,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-11 14:33:41,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-11 14:33:41,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-11 14:33:41,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045513002] [2023-01-11 14:33:41,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045513002] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-11 14:33:41,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-11 14:33:41,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-01-11 14:33:41,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663541990] [2023-01-11 14:33:41,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-11 14:33:41,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-01-11 14:33:41,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-11 14:33:41,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-01-11 14:33:41,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-01-11 14:33:41,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 14:33:41,609 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-11 14:33:41,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.4) internal successors, (82), 6 states have internal predecessors, (82), 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) [2023-01-11 14:33:41,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-11 14:33:41,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-11 14:34:14,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 14:34:14,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-01-11 14:34:14,057 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-11 14:34:14,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-01-11 14:34:14,058 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-01-11 14:34:14,059 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (47/107) [2023-01-11 14:34:14,060 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:34:14,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-11 14:34:14,060 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 14:34:14,063 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) [2023-01-11 14:34:14,064 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 [2023-01-11 14:34:14,069 INFO L100 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:34:14,069 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2023-01-11 14:34:14,069 WARN L167 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2023-01-11 14:34:14,069 WARN L168 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2023-01-11 14:34:14,070 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-11 14:34:14,070 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;@5ffab150, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:34:14,070 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-11 14:34:30,888 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE] === [2023-01-11 14:34:30,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-11 14:34:30,889 INFO L85 PathProgramCache]: Analyzing trace with hash 10213093, now seen corresponding path program 1 times [2023-01-11 14:34:30,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-11 14:34:30,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413541107] [2023-01-11 14:34:30,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-11 14:34:30,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-11 14:34:30,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-11 14:34:30,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-11 14:34:30,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-11 14:34:30,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413541107] [2023-01-11 14:34:30,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413541107] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-11 14:34:30,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-11 14:34:30,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-11 14:34:30,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623107431] [2023-01-11 14:34:30,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-11 14:34:30,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-01-11 14:34:30,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-11 14:34:30,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-01-11 14:34:30,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-01-11 14:34:30,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 14:34:30,911 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-11 14:34:30,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 41.5) internal successors, (83), 2 states have internal predecessors, (83), 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) [2023-01-11 14:34:30,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-11 14:34:31,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 14:34:31,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-01-11 14:34:31,874 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE] === [2023-01-11 14:34:31,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-11 14:34:31,874 INFO L85 PathProgramCache]: Analyzing trace with hash -969500231, now seen corresponding path program 1 times [2023-01-11 14:34:31,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-11 14:34:31,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097720418] [2023-01-11 14:34:31,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-11 14:34:31,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-11 14:34:31,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-11 14:34:32,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-11 14:34:32,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-11 14:34:32,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097720418] [2023-01-11 14:34:32,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097720418] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-11 14:34:32,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-11 14:34:32,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-01-11 14:34:32,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775127543] [2023-01-11 14:34:32,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-11 14:34:32,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-01-11 14:34:32,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-11 14:34:32,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-01-11 14:34:32,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-01-11 14:34:32,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 14:34:32,146 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-11 14:34:32,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.666666666666666) internal successors, (82), 7 states have internal predecessors, (82), 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) [2023-01-11 14:34:32,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-11 14:34:32,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-11 14:35:02,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 14:35:02,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-01-11 14:35:02,002 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-11 14:35:02,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-01-11 14:35:02,003 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-01-11 14:35:02,004 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (48/107) [2023-01-11 14:35:02,005 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:35:02,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-11 14:35:02,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 14:35:02,008 INFO L229 MonitoredProcess]: Starting monitored process 50 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-11 14:35:02,009 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (50)] Waiting until timeout for monitored process [2023-01-11 14:35:02,014 INFO L100 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:35:02,014 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2023-01-11 14:35:02,014 WARN L167 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2023-01-11 14:35:02,014 WARN L168 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2023-01-11 14:35:02,015 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-11 14:35:02,015 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;@5ffab150, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:35:02,015 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-11 14:35:18,750 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE] === [2023-01-11 14:35:18,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-11 14:35:18,751 INFO L85 PathProgramCache]: Analyzing trace with hash 10213094, now seen corresponding path program 1 times [2023-01-11 14:35:18,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-11 14:35:18,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561944750] [2023-01-11 14:35:18,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-11 14:35:18,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-11 14:35:18,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-11 14:35:18,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-11 14:35:18,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-11 14:35:18,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561944750] [2023-01-11 14:35:18,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561944750] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-11 14:35:18,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-11 14:35:18,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-11 14:35:18,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437632016] [2023-01-11 14:35:18,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-11 14:35:18,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-01-11 14:35:18,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-11 14:35:18,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-01-11 14:35:18,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-01-11 14:35:18,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 14:35:18,781 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-11 14:35:18,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 41.5) internal successors, (83), 2 states have internal predecessors, (83), 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) [2023-01-11 14:35:18,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-11 14:35:19,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 14:35:19,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-01-11 14:35:19,719 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE] === [2023-01-11 14:35:19,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-11 14:35:19,719 INFO L85 PathProgramCache]: Analyzing trace with hash -969500230, now seen corresponding path program 1 times [2023-01-11 14:35:19,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-11 14:35:19,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293284056] [2023-01-11 14:35:19,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-11 14:35:19,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-11 14:35:19,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-11 14:35:19,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-11 14:35:19,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-11 14:35:19,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293284056] [2023-01-11 14:35:19,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293284056] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-11 14:35:19,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-11 14:35:19,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-11 14:35:19,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988590793] [2023-01-11 14:35:19,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-11 14:35:19,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-01-11 14:35:19,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-11 14:35:19,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-01-11 14:35:19,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-01-11 14:35:19,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 14:35:19,821 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-11 14:35:19,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 27.333333333333332) internal successors, (82), 4 states have internal predecessors, (82), 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) [2023-01-11 14:35:19,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-11 14:35:19,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-11 14:35:41,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 14:35:41,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-01-11 14:35:41,412 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-11 14:35:41,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-01-11 14:35:41,413 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-01-11 14:35:41,413 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (49/107) [2023-01-11 14:35:41,415 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:35:41,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-11 14:35:41,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 14:35:41,417 INFO L229 MonitoredProcess]: Starting monitored process 51 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-11 14:35:41,418 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (51)] Waiting until timeout for monitored process [2023-01-11 14:35:41,422 INFO L100 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:35:41,422 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2023-01-11 14:35:41,422 WARN L167 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2023-01-11 14:35:41,422 WARN L168 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2023-01-11 14:35:41,423 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-11 14:35:41,423 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;@5ffab150, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:35:41,423 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-11 14:35:59,045 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE] === [2023-01-11 14:35:59,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-11 14:35:59,045 INFO L85 PathProgramCache]: Analyzing trace with hash 10213095, now seen corresponding path program 1 times [2023-01-11 14:35:59,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-11 14:35:59,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600853645] [2023-01-11 14:35:59,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-11 14:35:59,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-11 14:35:59,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-11 14:35:59,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-11 14:35:59,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-11 14:35:59,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600853645] [2023-01-11 14:35:59,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600853645] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-11 14:35:59,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-11 14:35:59,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-11 14:35:59,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448804538] [2023-01-11 14:35:59,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-11 14:35:59,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-01-11 14:35:59,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-11 14:35:59,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-01-11 14:35:59,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-01-11 14:35:59,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 14:35:59,065 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-11 14:35:59,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 41.5) internal successors, (83), 2 states have internal predecessors, (83), 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) [2023-01-11 14:35:59,065 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-11 14:36:00,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 14:36:00,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-01-11 14:36:00,021 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE] === [2023-01-11 14:36:00,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-11 14:36:00,021 INFO L85 PathProgramCache]: Analyzing trace with hash -969500229, now seen corresponding path program 1 times [2023-01-11 14:36:00,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-11 14:36:00,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564599319] [2023-01-11 14:36:00,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-11 14:36:00,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-11 14:36:00,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-11 14:36:00,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-11 14:36:00,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-11 14:36:00,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564599319] [2023-01-11 14:36:00,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564599319] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-11 14:36:00,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-11 14:36:00,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-01-11 14:36:00,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999995205] [2023-01-11 14:36:00,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-11 14:36:00,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-11 14:36:00,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-11 14:36:00,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-11 14:36:00,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-01-11 14:36:00,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 14:36:00,262 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-11 14:36:00,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 20.5) internal successors, (82), 5 states have internal predecessors, (82), 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) [2023-01-11 14:36:00,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-11 14:36:00,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-11 14:36:22,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 14:36:22,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-01-11 14:36:22,451 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-11 14:36:22,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-01-11 14:36:22,452 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-01-11 14:36:22,452 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (50/107) [2023-01-11 14:36:22,453 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:36:22,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-11 14:36:22,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 14:36:22,456 INFO L229 MonitoredProcess]: Starting monitored process 52 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-11 14:36:22,457 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (52)] Waiting until timeout for monitored process [2023-01-11 14:36:22,463 INFO L100 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:36:22,464 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2023-01-11 14:36:22,464 WARN L167 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2023-01-11 14:36:22,464 WARN L168 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2023-01-11 14:36:22,464 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-11 14:36:22,464 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;@5ffab150, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:36:22,464 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-11 14:36:41,086 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE] === [2023-01-11 14:36:41,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-11 14:36:41,086 INFO L85 PathProgramCache]: Analyzing trace with hash 316606889, now seen corresponding path program 1 times [2023-01-11 14:36:41,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-11 14:36:41,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11051489] [2023-01-11 14:36:41,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-11 14:36:41,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-11 14:36:41,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-11 14:36:41,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-11 14:36:41,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-11 14:36:41,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11051489] [2023-01-11 14:36:41,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11051489] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-11 14:36:41,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-11 14:36:41,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-11 14:36:41,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682899198] [2023-01-11 14:36:41,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-11 14:36:41,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-01-11 14:36:41,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-11 14:36:41,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-01-11 14:36:41,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-01-11 14:36:41,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 14:36:41,112 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-11 14:36:41,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 42.0) internal successors, (84), 2 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) [2023-01-11 14:36:41,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-11 14:36:41,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 14:36:41,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-01-11 14:36:41,984 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE] === [2023-01-11 14:36:41,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-11 14:36:41,985 INFO L85 PathProgramCache]: Analyzing trace with hash 10264917, now seen corresponding path program 1 times [2023-01-11 14:36:41,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-11 14:36:41,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097883996] [2023-01-11 14:36:41,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-11 14:36:41,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-11 14:36:41,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-11 14:36:42,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-11 14:36:42,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-11 14:36:42,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097883996] [2023-01-11 14:36:42,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097883996] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-11 14:36:42,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-11 14:36:42,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-11 14:36:42,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915763071] [2023-01-11 14:36:42,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-11 14:36:42,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-11 14:36:42,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-11 14:36:42,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-11 14:36:42,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-11 14:36:42,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 14:36:42,031 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-11 14:36:42,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 41.5) internal successors, (83), 3 states have internal predecessors, (83), 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) [2023-01-11 14:36:42,032 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-11 14:36:42,032 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-11 14:37:02,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 14:37:02,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-11 14:37:02,417 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-11 14:37:02,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-01-11 14:37:02,418 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-01-11 14:37:02,418 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (51/107) [2023-01-11 14:37:02,419 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:37:02,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-11 14:37:02,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 14:37:02,422 INFO L229 MonitoredProcess]: Starting monitored process 53 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-11 14:37:02,423 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (53)] Waiting until timeout for monitored process [2023-01-11 14:37:02,429 INFO L100 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:37:02,429 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2023-01-11 14:37:02,429 WARN L167 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2023-01-11 14:37:02,429 WARN L168 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2023-01-11 14:37:02,429 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-11 14:37:02,429 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;@5ffab150, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:37:02,429 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-11 14:37:21,132 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE] === [2023-01-11 14:37:21,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-11 14:37:21,133 INFO L85 PathProgramCache]: Analyzing trace with hash 316606890, now seen corresponding path program 1 times [2023-01-11 14:37:21,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-11 14:37:21,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073787332] [2023-01-11 14:37:21,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-11 14:37:21,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-11 14:37:21,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-11 14:37:21,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-11 14:37:21,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-11 14:37:21,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073787332] [2023-01-11 14:37:21,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073787332] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-11 14:37:21,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-11 14:37:21,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-11 14:37:21,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258957510] [2023-01-11 14:37:21,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-11 14:37:21,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-01-11 14:37:21,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-11 14:37:21,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-01-11 14:37:21,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-01-11 14:37:21,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 14:37:21,153 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-11 14:37:21,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 42.0) internal successors, (84), 2 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) [2023-01-11 14:37:21,153 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-11 14:37:22,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 14:37:22,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-01-11 14:37:22,146 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE] === [2023-01-11 14:37:22,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-11 14:37:22,146 INFO L85 PathProgramCache]: Analyzing trace with hash 10264918, now seen corresponding path program 1 times [2023-01-11 14:37:22,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-11 14:37:22,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890044513] [2023-01-11 14:37:22,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-11 14:37:22,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-11 14:37:22,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-11 14:37:22,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-11 14:37:22,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-11 14:37:22,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890044513] [2023-01-11 14:37:22,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890044513] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-11 14:37:22,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-11 14:37:22,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-11 14:37:22,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773484324] [2023-01-11 14:37:22,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-11 14:37:22,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-01-11 14:37:22,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-11 14:37:22,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-01-11 14:37:22,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-01-11 14:37:22,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 14:37:22,220 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-11 14:37:22,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 27.666666666666668) internal successors, (83), 4 states have internal predecessors, (83), 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) [2023-01-11 14:37:22,221 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-11 14:37:22,221 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-11 14:37:38,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 14:37:38,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-01-11 14:37:38,631 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-11 14:37:38,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-01-11 14:37:38,632 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-01-11 14:37:38,632 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (52/107) [2023-01-11 14:37:38,634 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:37:38,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-11 14:37:38,634 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 14:37:38,636 INFO L229 MonitoredProcess]: Starting monitored process 54 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-11 14:37:38,637 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (54)] Waiting until timeout for monitored process [2023-01-11 14:37:38,641 INFO L100 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:37:38,642 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2023-01-11 14:37:38,642 WARN L167 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2023-01-11 14:37:38,642 WARN L168 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2023-01-11 14:37:38,642 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-11 14:37:38,642 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;@5ffab150, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:37:38,642 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-11 14:37:57,606 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE] === [2023-01-11 14:37:57,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-11 14:37:57,606 INFO L85 PathProgramCache]: Analyzing trace with hash 316606891, now seen corresponding path program 1 times [2023-01-11 14:37:57,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-11 14:37:57,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2681411] [2023-01-11 14:37:57,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-11 14:37:57,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-11 14:37:57,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-11 14:37:57,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-11 14:37:57,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-11 14:37:57,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2681411] [2023-01-11 14:37:57,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2681411] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-11 14:37:57,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-11 14:37:57,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-11 14:37:57,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129727240] [2023-01-11 14:37:57,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-11 14:37:57,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-01-11 14:37:57,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-11 14:37:57,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-01-11 14:37:57,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-01-11 14:37:57,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 14:37:57,625 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-11 14:37:57,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 42.0) internal successors, (84), 2 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) [2023-01-11 14:37:57,625 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-11 14:38:01,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 14:38:01,132 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-11 14:38:01,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-01-11 14:38:01,133 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-11 14:38:01,133 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (53/107) [2023-01-11 14:38:01,134 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:38:01,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-11 14:38:01,134 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 14:38:01,137 INFO L229 MonitoredProcess]: Starting monitored process 55 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-11 14:38:01,138 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (55)] Waiting until timeout for monitored process [2023-01-11 14:38:01,142 INFO L100 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:38:01,143 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2023-01-11 14:38:01,143 WARN L167 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2023-01-11 14:38:01,143 WARN L168 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2023-01-11 14:38:01,143 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-11 14:38:01,143 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;@5ffab150, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:38:01,143 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-11 14:38:19,514 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE] === [2023-01-11 14:38:19,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-11 14:38:19,514 INFO L85 PathProgramCache]: Analyzing trace with hash 316606892, now seen corresponding path program 1 times [2023-01-11 14:38:19,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-11 14:38:19,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711005447] [2023-01-11 14:38:19,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-11 14:38:19,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-11 14:38:19,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-11 14:38:19,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-11 14:38:19,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-11 14:38:19,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711005447] [2023-01-11 14:38:19,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711005447] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-11 14:38:19,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-11 14:38:19,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-11 14:38:19,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868869137] [2023-01-11 14:38:19,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-11 14:38:19,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-01-11 14:38:19,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-11 14:38:19,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-01-11 14:38:19,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-01-11 14:38:19,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 14:38:19,536 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-11 14:38:19,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 42.0) internal successors, (84), 2 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) [2023-01-11 14:38:19,536 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-11 14:38:22,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 14:38:22,848 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-11 14:38:22,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-01-11 14:38:22,849 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-11 14:38:22,849 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (54/107) [2023-01-11 14:38:22,850 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:38:22,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-11 14:38:22,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 14:38:22,853 INFO L229 MonitoredProcess]: Starting monitored process 56 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-11 14:38:22,854 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (56)] Waiting until timeout for monitored process [2023-01-11 14:38:22,859 INFO L100 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:38:22,859 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2023-01-11 14:38:22,859 WARN L167 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2023-01-11 14:38:22,859 WARN L168 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2023-01-11 14:38:22,859 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-11 14:38:22,860 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;@5ffab150, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:38:22,860 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-11 14:38:41,207 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE] === [2023-01-11 14:38:41,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-11 14:38:41,208 INFO L85 PathProgramCache]: Analyzing trace with hash 316606893, now seen corresponding path program 1 times [2023-01-11 14:38:41,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-11 14:38:41,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694197436] [2023-01-11 14:38:41,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-11 14:38:41,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-11 14:38:41,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-11 14:38:41,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-11 14:38:41,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-11 14:38:41,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694197436] [2023-01-11 14:38:41,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694197436] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-11 14:38:41,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-11 14:38:41,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-11 14:38:41,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958124152] [2023-01-11 14:38:41,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-11 14:38:41,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-01-11 14:38:41,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-11 14:38:41,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-01-11 14:38:41,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-01-11 14:38:41,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 14:38:41,228 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-11 14:38:41,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 42.0) internal successors, (84), 2 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) [2023-01-11 14:38:41,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-11 14:38:44,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 14:38:44,926 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-11 14:38:44,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-01-11 14:38:44,927 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-11 14:38:44,927 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (55/107) [2023-01-11 14:38:44,928 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:38:44,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-11 14:38:44,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 14:38:44,931 INFO L229 MonitoredProcess]: Starting monitored process 57 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-11 14:38:44,932 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (57)] Waiting until timeout for monitored process [2023-01-11 14:38:44,937 INFO L100 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:38:44,938 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2023-01-11 14:38:44,938 WARN L167 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2023-01-11 14:38:44,938 WARN L168 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2023-01-11 14:38:44,938 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-11 14:38:44,938 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;@5ffab150, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:38:44,938 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-11 14:39:03,352 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE] === [2023-01-11 14:39:03,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-11 14:39:03,352 INFO L85 PathProgramCache]: Analyzing trace with hash 316606894, now seen corresponding path program 1 times [2023-01-11 14:39:03,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-11 14:39:03,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949306677] [2023-01-11 14:39:03,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-11 14:39:03,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-11 14:39:03,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-11 14:39:03,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-11 14:39:03,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-11 14:39:03,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949306677] [2023-01-11 14:39:03,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949306677] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-11 14:39:03,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-11 14:39:03,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-11 14:39:03,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82967665] [2023-01-11 14:39:03,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-11 14:39:03,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-01-11 14:39:03,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-11 14:39:03,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-01-11 14:39:03,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-01-11 14:39:03,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 14:39:03,372 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-11 14:39:03,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 42.0) internal successors, (84), 2 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) [2023-01-11 14:39:03,372 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-11 14:39:06,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 14:39:06,808 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-11 14:39:06,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-01-11 14:39:06,809 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-11 14:39:06,809 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (56/107) [2023-01-11 14:39:06,810 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:39:06,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-11 14:39:06,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 14:39:06,813 INFO L229 MonitoredProcess]: Starting monitored process 58 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-11 14:39:06,813 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (58)] Waiting until timeout for monitored process [2023-01-11 14:39:06,818 INFO L100 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:39:06,819 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2023-01-11 14:39:06,819 WARN L167 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2023-01-11 14:39:06,819 WARN L168 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2023-01-11 14:39:06,819 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-11 14:39:06,819 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;@5ffab150, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 14:39:06,819 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-11 14:39:25,074 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE] === [2023-01-11 14:39:25,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-11 14:39:25,075 INFO L85 PathProgramCache]: Analyzing trace with hash 316606895, now seen corresponding path program 1 times [2023-01-11 14:39:25,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-11 14:39:25,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753225370] [2023-01-11 14:39:25,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-11 14:39:25,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-11 14:39:25,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-11 14:39:25,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-11 14:39:25,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-11 14:39:25,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753225370] [2023-01-11 14:39:25,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753225370] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-11 14:39:25,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-11 14:39:25,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-11 14:39:25,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352457214] [2023-01-11 14:39:25,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-11 14:39:25,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-01-11 14:39:25,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-11 14:39:25,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-01-11 14:39:25,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-01-11 14:39:25,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 14:39:25,107 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-11 14:39:25,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 42.0) internal successors, (84), 2 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) [2023-01-11 14:39:25,107 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-11 14:39:25,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 14:39:25,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-01-11 14:39:25,972 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE] === [2023-01-11 14:39:25,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-11 14:39:25,972 INFO L85 PathProgramCache]: Analyzing trace with hash 10264923, now seen corresponding path program 1 times [2023-01-11 14:39:25,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-11 14:39:25,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390563894] [2023-01-11 14:39:25,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-11 14:39:25,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-11 14:39:25,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-11 14:39:26,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-11 14:39:26,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-11 14:39:26,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390563894] [2023-01-11 14:39:26,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390563894] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-11 14:39:26,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-11 14:39:26,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-11 14:39:26,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168255198] [2023-01-11 14:39:26,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-11 14:39:26,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-11 14:39:26,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-11 14:39:26,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-11 14:39:26,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-11 14:39:26,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 14:39:26,061 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-11 14:39:26,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 41.5) internal successors, (83), 3 states have internal predecessors, (83), 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) [2023-01-11 14:39:26,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-11 14:39:26,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.