/usr/bin/java -Xmx7000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --traceabstraction.prune.known.deadend.states.from.previous.iterations false -s ../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_ERROR_LOCATION --traceabstraction.number.of.independence.relations.to.use.for.por 2 --traceabstraction.abstraction.used.for.commutativity.in.por VARIABLES_GLOBAL '--traceabstraction.abstraction.used.for.commutativity.in.por.#2' NONE -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_84-list2_racing2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.dynamic-abstractions-e2ee32c-m [2023-09-07 15:55:00,788 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-09-07 15:55:00,850 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf [2023-09-07 15:55:00,855 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-09-07 15:55:00,855 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-09-07 15:55:00,856 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-09-07 15:55:00,878 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-07 15:55:00,878 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-07 15:55:00,878 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-07 15:55:00,881 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-07 15:55:00,882 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-07 15:55:00,882 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-07 15:55:00,882 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-09-07 15:55:00,883 INFO L153 SettingsManager]: * Use SBE=true [2023-09-07 15:55:00,883 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-07 15:55:00,883 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-07 15:55:00,884 INFO L153 SettingsManager]: * sizeof long=4 [2023-09-07 15:55:00,884 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-07 15:55:00,884 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-09-07 15:55:00,884 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-09-07 15:55:00,884 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-07 15:55:00,885 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-07 15:55:00,885 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-07 15:55:00,885 INFO L153 SettingsManager]: * sizeof long double=12 [2023-09-07 15:55:00,885 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-09-07 15:55:00,885 INFO L153 SettingsManager]: * Use constant arrays=true [2023-09-07 15:55:00,886 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-07 15:55:00,886 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-07 15:55:00,886 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-09-07 15:55:00,886 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-07 15:55:00,887 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-07 15:55:00,887 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-07 15:55:00,887 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-07 15:55:00,887 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-07 15:55:00,888 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-07 15:55:00,888 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-07 15:55:00,888 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-09-07 15:55:00,888 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-09-07 15:55:00,888 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-07 15:55:00,888 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2023-09-07 15:55:00,888 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Prune known deadend states from previous iterations -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Number of independence relations to use for POR -> 2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstraction used for commutativity in POR -> VARIABLES_GLOBAL Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstraction used for commutativity in POR #2 -> NONE [2023-09-07 15:55:01,072 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-07 15:55:01,086 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-07 15:55:01,088 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-07 15:55:01,088 INFO L270 PluginConnector]: Initializing CDTParser... [2023-09-07 15:55:01,089 INFO L274 PluginConnector]: CDTParser initialized [2023-09-07 15:55:01,090 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_84-list2_racing2.i [2023-09-07 15:55:02,109 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-09-07 15:55:02,273 INFO L384 CDTParser]: Found 1 translation units. [2023-09-07 15:55:02,273 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_84-list2_racing2.i [2023-09-07 15:55:02,302 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c4ba8157/9bd42eb5a5f645e18233a957162a26f3/FLAGbca93d85d [2023-09-07 15:55:02,312 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c4ba8157/9bd42eb5a5f645e18233a957162a26f3 [2023-09-07 15:55:02,314 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-07 15:55:02,315 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-09-07 15:55:02,318 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-07 15:55:02,318 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-07 15:55:02,323 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-07 15:55:02,323 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 03:55:02" (1/1) ... [2023-09-07 15:55:02,324 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d4492b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:55:02, skipping insertion in model container [2023-09-07 15:55:02,324 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 03:55:02" (1/1) ... [2023-09-07 15:55:02,364 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-09-07 15:55:02,624 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_84-list2_racing2.i[47038,47051] [2023-09-07 15:55:02,669 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-07 15:55:02,682 INFO L202 MainTranslator]: Completed pre-run [2023-09-07 15:55:02,705 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [261] [2023-09-07 15:55:02,706 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [261] [2023-09-07 15:55:02,719 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_84-list2_racing2.i[47038,47051] [2023-09-07 15:55:02,750 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-07 15:55:02,799 INFO L206 MainTranslator]: Completed translation [2023-09-07 15:55:02,800 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:55:02 WrapperNode [2023-09-07 15:55:02,800 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-07 15:55:02,801 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-07 15:55:02,801 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-07 15:55:02,801 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-07 15:55:02,806 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:55:02" (1/1) ... [2023-09-07 15:55:02,831 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:55:02" (1/1) ... [2023-09-07 15:55:02,878 INFO L138 Inliner]: procedures = 279, calls = 88, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 390 [2023-09-07 15:55:02,878 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-07 15:55:02,879 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-07 15:55:02,879 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-07 15:55:02,879 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-09-07 15:55:02,885 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:55:02" (1/1) ... [2023-09-07 15:55:02,885 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:55:02" (1/1) ... [2023-09-07 15:55:02,901 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:55:02" (1/1) ... [2023-09-07 15:55:02,901 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:55:02" (1/1) ... [2023-09-07 15:55:02,909 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:55:02" (1/1) ... [2023-09-07 15:55:02,912 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:55:02" (1/1) ... [2023-09-07 15:55:02,929 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:55:02" (1/1) ... [2023-09-07 15:55:02,931 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:55:02" (1/1) ... [2023-09-07 15:55:02,933 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-07 15:55:02,934 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-07 15:55:02,934 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-09-07 15:55:02,934 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-09-07 15:55:02,935 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:55:02" (1/1) ... [2023-09-07 15:55:02,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-07 15:55:02,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 15:55:02,960 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) [2023-09-07 15:55:02,965 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 [2023-09-07 15:55:02,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-07 15:55:02,987 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-09-07 15:55:02,988 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2023-09-07 15:55:02,988 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2023-09-07 15:55:02,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-07 15:55:02,988 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-09-07 15:55:02,988 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2023-09-07 15:55:02,988 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2023-09-07 15:55:02,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-07 15:55:02,989 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-09-07 15:55:02,990 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-09-07 15:55:02,990 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-07 15:55:02,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-09-07 15:55:02,990 INFO L130 BoogieDeclarations]: Found specification of procedure t3_fun [2023-09-07 15:55:02,990 INFO L138 BoogieDeclarations]: Found implementation of procedure t3_fun [2023-09-07 15:55:02,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-07 15:55:02,990 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-07 15:55:02,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-07 15:55:02,991 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-09-07 15:55:03,123 INFO L236 CfgBuilder]: Building ICFG [2023-09-07 15:55:03,125 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-07 15:55:03,436 INFO L277 CfgBuilder]: Performing block encoding [2023-09-07 15:55:03,450 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-07 15:55:03,451 INFO L302 CfgBuilder]: Removed 29 assume(true) statements. [2023-09-07 15:55:03,453 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 03:55:03 BoogieIcfgContainer [2023-09-07 15:55:03,453 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-07 15:55:03,455 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-07 15:55:03,455 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-09-07 15:55:03,457 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-09-07 15:55:03,458 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.09 03:55:02" (1/3) ... [2023-09-07 15:55:03,458 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30359d1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 03:55:03, skipping insertion in model container [2023-09-07 15:55:03,458 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:55:02" (2/3) ... [2023-09-07 15:55:03,458 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30359d1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 03:55:03, skipping insertion in model container [2023-09-07 15:55:03,458 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 03:55:03" (3/3) ... [2023-09-07 15:55:03,459 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_84-list2_racing2.i [2023-09-07 15:55:03,465 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-07 15:55:03,471 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-07 15:55:03,471 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-09-07 15:55:03,471 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-07 15:55:03,579 INFO L144 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2023-09-07 15:55:03,627 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-07 15:55:03,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-09-07 15:55:03,628 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 15:55:03,631 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) [2023-09-07 15:55:03,645 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 [2023-09-07 15:55:03,674 INFO L103 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-07 15:55:03,683 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2023-09-07 15:55:03,683 WARN L169 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2023-09-07 15:55:03,683 WARN L170 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2023-09-07 15:55:03,689 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2023-09-07 15:55:03,695 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;@1b6b9b8a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-07 15:55:03,695 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-09-07 15:55:03,698 WARN L125 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2023-09-07 15:55:03,700 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-09-07 15:55:03,708 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-09-07 15:55:03,710 INFO L307 ceAbstractionStarter]: Result for error location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION was SAFE (1/7) [2023-09-07 15:55:03,724 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-07 15:55:03,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-09-07 15:55:03,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 15:55:03,767 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) [2023-09-07 15:55:03,768 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 [2023-09-07 15:55:03,771 INFO L103 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-07 15:55:03,772 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2023-09-07 15:55:03,772 WARN L169 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2023-09-07 15:55:03,772 WARN L170 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2023-09-07 15:55:03,772 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2023-09-07 15:55:03,773 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;@1b6b9b8a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-07 15:55:03,773 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-09-07 15:55:03,773 WARN L125 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2023-09-07 15:55:03,773 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-09-07 15:55:03,774 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-09-07 15:55:03,775 INFO L307 ceAbstractionStarter]: Result for error location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION was SAFE (2/7) [2023-09-07 15:55:03,784 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-07 15:55:03,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-09-07 15:55:03,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 15:55:03,788 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) [2023-09-07 15:55:03,791 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 [2023-09-07 15:55:03,793 INFO L103 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-07 15:55:03,794 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2023-09-07 15:55:03,794 WARN L169 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2023-09-07 15:55:03,794 WARN L170 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2023-09-07 15:55:03,794 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2023-09-07 15:55:03,795 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;@1b6b9b8a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-07 15:55:03,795 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-09-07 15:55:04,877 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-09-07 15:55:04,881 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 15:55:04,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1378525599, now seen corresponding path program 1 times [2023-09-07 15:55:04,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 15:55:04,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806666420] [2023-09-07 15:55:04,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 15:55:04,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 15:55:05,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 15:55:05,284 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-09-07 15:55:05,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 15:55:05,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806666420] [2023-09-07 15:55:05,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806666420] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-07 15:55:05,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [622904854] [2023-09-07 15:55:05,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 15:55:05,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 15:55:05,286 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 15:55:05,289 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-07 15:55:05,289 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-09-07 15:55:05,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 15:55:05,435 INFO L262 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 4 conjunts are in the unsatisfiable core [2023-09-07 15:55:05,439 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-07 15:55:05,474 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-09-07 15:55:05,474 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-09-07 15:55:05,522 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-09-07 15:55:05,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [622904854] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-07 15:55:05,523 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-09-07 15:55:05,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2023-09-07 15:55:05,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428644610] [2023-09-07 15:55:05,525 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-09-07 15:55:05,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-09-07 15:55:05,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 15:55:05,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-09-07 15:55:05,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-09-07 15:55:05,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 15:55:05,553 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 15:55:05,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.0) internal successors, (120), 10 states have internal predecessors, (120), 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) [2023-09-07 15:55:05,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 15:55:05,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-09-07 15:55:05,638 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-09-07 15:55:05,646 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-09-07 15:55:05,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-09-07 15:55:05,850 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-09-07 15:55:05,850 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was SAFE (3/7) [2023-09-07 15:55:05,856 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-07 15:55:05,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-09-07 15:55:05,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 15:55:05,857 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) [2023-09-07 15:55:05,859 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 [2023-09-07 15:55:05,862 INFO L103 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-07 15:55:05,863 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2023-09-07 15:55:05,863 WARN L169 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2023-09-07 15:55:05,863 WARN L170 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2023-09-07 15:55:05,863 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2023-09-07 15:55:05,863 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;@1b6b9b8a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-07 15:55:05,864 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-09-07 15:55:05,900 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-09-07 15:55:05,901 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 15:55:05,901 INFO L85 PathProgramCache]: Analyzing trace with hash 522432404, now seen corresponding path program 1 times [2023-09-07 15:55:05,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 15:55:05,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915538669] [2023-09-07 15:55:05,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 15:55:05,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 15:55:05,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-07 15:55:05,928 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-09-07 15:55:05,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-07 15:55:05,964 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-09-07 15:55:05,964 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-09-07 15:55:05,965 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-09-07 15:55:05,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-09-07 15:55:05,966 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-09-07 15:55:05,966 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was UNSAFE (4/7) [2023-09-07 15:55:05,966 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-09-07 15:55:05,967 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-09-07 15:55:06,059 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2023-09-07 15:55:06,064 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-07 15:55:06,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-09-07 15:55:06,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 15:55:06,071 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) [2023-09-07 15:55:06,072 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 [2023-09-07 15:55:06,074 INFO L103 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-07 15:55:06,075 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2023-09-07 15:55:06,075 WARN L169 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2023-09-07 15:55:06,075 WARN L170 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2023-09-07 15:55:06,075 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2023-09-07 15:55:06,076 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;@1b6b9b8a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-07 15:55:06,076 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-09-07 15:55:06,076 WARN L125 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2023-09-07 15:55:06,076 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-09-07 15:55:06,077 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-09-07 15:55:06,077 INFO L307 ceAbstractionStarter]: Result for error location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION was SAFE (1/9) [2023-09-07 15:55:06,082 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-07 15:55:06,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-09-07 15:55:06,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 15:55:06,085 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) [2023-09-07 15:55:06,086 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 [2023-09-07 15:55:06,088 INFO L103 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-07 15:55:06,089 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2023-09-07 15:55:06,089 WARN L169 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2023-09-07 15:55:06,089 WARN L170 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2023-09-07 15:55:06,089 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2023-09-07 15:55:06,090 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;@1b6b9b8a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-07 15:55:06,090 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-09-07 15:55:06,090 WARN L125 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2023-09-07 15:55:06,090 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-09-07 15:55:06,091 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-09-07 15:55:06,091 INFO L307 ceAbstractionStarter]: Result for error location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION was SAFE (2/9) [2023-09-07 15:55:06,094 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-07 15:55:06,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-09-07 15:55:06,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 15:55:06,097 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) [2023-09-07 15:55:06,098 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 [2023-09-07 15:55:06,101 INFO L103 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-07 15:55:06,102 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2023-09-07 15:55:06,102 WARN L169 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2023-09-07 15:55:06,102 WARN L170 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2023-09-07 15:55:06,102 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2023-09-07 15:55:06,102 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;@1b6b9b8a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-07 15:55:06,102 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-09-07 15:55:06,466 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-09-07 15:55:06,466 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 15:55:06,466 INFO L85 PathProgramCache]: Analyzing trace with hash -1636661644, now seen corresponding path program 1 times [2023-09-07 15:55:06,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 15:55:06,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848154095] [2023-09-07 15:55:06,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 15:55:06,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 15:55:06,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 15:55:06,718 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-09-07 15:55:06,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 15:55:06,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848154095] [2023-09-07 15:55:06,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848154095] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-07 15:55:06,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1181469450] [2023-09-07 15:55:06,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 15:55:06,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 15:55:06,719 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 15:55:06,735 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-07 15:55:06,754 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-09-07 15:55:06,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 15:55:06,921 INFO L262 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 6 conjunts are in the unsatisfiable core [2023-09-07 15:55:06,928 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-07 15:55:06,966 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-09-07 15:55:06,966 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-09-07 15:55:07,020 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-09-07 15:55:07,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1181469450] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-07 15:55:07,020 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-09-07 15:55:07,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2023-09-07 15:55:07,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296504966] [2023-09-07 15:55:07,021 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-09-07 15:55:07,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-09-07 15:55:07,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 15:55:07,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-09-07 15:55:07,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2023-09-07 15:55:07,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 15:55:07,026 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 15:55:07,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 9.071428571428571) internal successors, (127), 14 states have internal predecessors, (127), 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) [2023-09-07 15:55:07,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 15:55:07,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-09-07 15:55:07,556 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-09-07 15:55:07,565 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-09-07 15:55:07,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 15:55:07,765 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-09-07 15:55:07,765 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was SAFE (3/9) [2023-09-07 15:55:07,782 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-07 15:55:07,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-09-07 15:55:07,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 15:55:07,783 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) [2023-09-07 15:55:07,786 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 [2023-09-07 15:55:07,788 INFO L103 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-07 15:55:07,789 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2023-09-07 15:55:07,789 WARN L169 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2023-09-07 15:55:07,789 WARN L170 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2023-09-07 15:55:07,789 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2023-09-07 15:55:07,789 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;@1b6b9b8a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-07 15:55:07,790 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations.