/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -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_70-funloop_racefree.i


--------------------------------------------------------------------------------


This is Ultimate 0.2.4-wip.dk.dynamic-abstractions-57af04c-m
[2024-01-26 11:32:05,851 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-01-26 11:32:05,933 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf
[2024-01-26 11:32:05,938 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-01-26 11:32:05,938 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-01-26 11:32:05,954 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-01-26 11:32:05,955 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-01-26 11:32:05,955 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-01-26 11:32:05,956 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-01-26 11:32:05,958 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-01-26 11:32:05,959 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-01-26 11:32:05,959 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-01-26 11:32:05,959 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-01-26 11:32:05,959 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-01-26 11:32:05,959 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-01-26 11:32:05,959 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-01-26 11:32:05,960 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-01-26 11:32:05,960 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-01-26 11:32:05,960 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-01-26 11:32:05,960 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-01-26 11:32:05,960 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-01-26 11:32:05,961 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-01-26 11:32:05,961 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-01-26 11:32:05,961 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-01-26 11:32:05,961 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-01-26 11:32:05,962 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-01-26 11:32:05,962 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-01-26 11:32:05,962 INFO  L153        SettingsManager]:  * To the following directory=./dump/
[2024-01-26 11:32:05,962 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-01-26 11:32:05,962 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2024-01-26 11:32:05,962 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-01-26 11:32:05,962 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-01-26 11:32:05,963 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-01-26 11:32:05,963 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-01-26 11:32:05,963 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-01-26 11:32:05,963 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-01-26 11:32:05,963 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA
[2024-01-26 11:32:05,963 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2024-01-26 11:32:05,963 INFO  L153        SettingsManager]:  * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES
[2024-01-26 11:32:05,963 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/UGemCutter-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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Prune known deadend states from previous iterations -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Number of independence relations to use for POR -> 2
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstraction used for commutativity in POR -> VARIABLES_GLOBAL
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstraction used for commutativity in POR #2 -> NONE
[2024-01-26 11:32:06,153 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-01-26 11:32:06,169 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-01-26 11:32:06,171 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-01-26 11:32:06,172 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-01-26 11:32:06,172 INFO  L274        PluginConnector]: CDTParser initialized
[2024-01-26 11:32:06,173 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_70-funloop_racefree.i
[2024-01-26 11:32:07,300 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-01-26 11:32:07,527 INFO  L384              CDTParser]: Found 1 translation units.
[2024-01-26 11:32:07,528 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_70-funloop_racefree.i
[2024-01-26 11:32:07,550 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/0cb850cbe/8efb483277ed4473a3cd88081b36abce/FLAG16751a052
[2024-01-26 11:32:07,566 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/0cb850cbe/8efb483277ed4473a3cd88081b36abce
[2024-01-26 11:32:07,569 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-01-26 11:32:07,571 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-01-26 11:32:07,574 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-01-26 11:32:07,574 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-01-26 11:32:07,578 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-01-26 11:32:07,578 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 11:32:07" (1/1) ...
[2024-01-26 11:32:07,579 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b5c8746 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 11:32:07, skipping insertion in model container
[2024-01-26 11:32:07,579 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 11:32:07" (1/1) ...
[2024-01-26 11:32:07,636 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2024-01-26 11:32:07,952 WARN  L239   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_70-funloop_racefree.i[41323,41336]
[2024-01-26 11:32:07,971 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2024-01-26 11:32:07,990 INFO  L202         MainTranslator]: Completed pre-run
[2024-01-26 11:32:08,012 WARN  L239   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_70-funloop_racefree.i[41323,41336]
[2024-01-26 11:32:08,017 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2024-01-26 11:32:08,060 INFO  L206         MainTranslator]: Completed translation
[2024-01-26 11:32:08,061 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 11:32:08 WrapperNode
[2024-01-26 11:32:08,061 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-01-26 11:32:08,062 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-01-26 11:32:08,062 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-01-26 11:32:08,062 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-01-26 11:32:08,066 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 11:32:08" (1/1) ...
[2024-01-26 11:32:08,077 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 11:32:08" (1/1) ...
[2024-01-26 11:32:08,103 INFO  L138                Inliner]: procedures = 272, calls = 35, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 218
[2024-01-26 11:32:08,104 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-01-26 11:32:08,104 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-01-26 11:32:08,104 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-01-26 11:32:08,104 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-01-26 11:32:08,113 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 11:32:08" (1/1) ...
[2024-01-26 11:32:08,113 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 11:32:08" (1/1) ...
[2024-01-26 11:32:08,128 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 11:32:08" (1/1) ...
[2024-01-26 11:32:08,129 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 11:32:08" (1/1) ...
[2024-01-26 11:32:08,134 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 11:32:08" (1/1) ...
[2024-01-26 11:32:08,137 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 11:32:08" (1/1) ...
[2024-01-26 11:32:08,138 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 11:32:08" (1/1) ...
[2024-01-26 11:32:08,139 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 11:32:08" (1/1) ...
[2024-01-26 11:32:08,141 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-01-26 11:32:08,142 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-01-26 11:32:08,142 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-01-26 11:32:08,142 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-01-26 11:32:08,142 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 11:32:08" (1/1) ...
[2024-01-26 11:32:08,146 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2024-01-26 11:32:08,155 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-01-26 11:32:08,166 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2024-01-26 11:32:08,193 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2024-01-26 11:32:08,197 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2024-01-26 11:32:08,197 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-01-26 11:32:08,197 INFO  L130     BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock
[2024-01-26 11:32:08,197 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2024-01-26 11:32:08,198 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2024-01-26 11:32:08,198 INFO  L130     BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock
[2024-01-26 11:32:08,198 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-01-26 11:32:08,198 INFO  L130     BoogieDeclarations]: Found specification of procedure t_fun
[2024-01-26 11:32:08,198 INFO  L138     BoogieDeclarations]: Found implementation of procedure t_fun
[2024-01-26 11:32:08,198 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2024-01-26 11:32:08,198 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-01-26 11:32:08,198 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-01-26 11:32:08,200 WARN  L213             CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement
[2024-01-26 11:32:08,323 INFO  L241             CfgBuilder]: Building ICFG
[2024-01-26 11:32:08,325 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-01-26 11:32:08,530 INFO  L282             CfgBuilder]: Performing block encoding
[2024-01-26 11:32:08,574 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-01-26 11:32:08,575 INFO  L309             CfgBuilder]: Removed 25 assume(true) statements.
[2024-01-26 11:32:08,575 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 11:32:08 BoogieIcfgContainer
[2024-01-26 11:32:08,575 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-01-26 11:32:08,576 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-01-26 11:32:08,577 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-01-26 11:32:08,578 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-01-26 11:32:08,579 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.01 11:32:07" (1/3) ...
[2024-01-26 11:32:08,579 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f22de4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.01 11:32:08, skipping insertion in model container
[2024-01-26 11:32:08,579 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 11:32:08" (2/3) ...
[2024-01-26 11:32:08,579 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f22de4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.01 11:32:08, skipping insertion in model container
[2024-01-26 11:32:08,579 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 11:32:08" (3/3) ...
[2024-01-26 11:32:08,580 INFO  L112   eAbstractionObserver]: Analyzing ICFG 28-race_reach_70-funloop_racefree.i
[2024-01-26 11:32:08,585 WARN  L146   ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2024-01-26 11:32:08,594 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-01-26 11:32:08,594 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations.
[2024-01-26 11:32:08,594 INFO  L515   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2024-01-26 11:32:08,639 INFO  L144    ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions.
[2024-01-26 11:32:08,670 INFO  L103   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-01-26 11:32:08,670 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-01-26 11:32:08,670 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-01-26 11:32:08,671 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2024-01-26 11:32:08,674 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process
[2024-01-26 11:32:08,693 INFO  L103   denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-01-26 11:32:08,706 INFO  L166   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations.
[2024-01-26 11:32:08,707 WARN  L169   artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound!
[2024-01-26 11:32:08,707 WARN  L170   artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound.
[2024-01-26 11:32:08,711 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ========
[2024-01-26 11:32:08,717 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=LoopHeads, 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;@8c85227, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-01-26 11:32:08,717 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-01-26 11:32:09,555 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-01-26 11:32:09,559 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-01-26 11:32:09,560 INFO  L85        PathProgramCache]: Analyzing trace with hash 1690531185, now seen corresponding path program 1 times
[2024-01-26 11:32:09,566 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-01-26 11:32:09,566 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361660469]
[2024-01-26 11:32:09,566 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-01-26 11:32:09,567 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-01-26 11:32:09,739 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-01-26 11:32:10,198 INFO  L134       CoverageAnalysis]: Checked inductivity of 1798 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1798 trivial. 0 not checked.
[2024-01-26 11:32:10,198 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-01-26 11:32:10,198 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361660469]
[2024-01-26 11:32:10,199 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361660469] provided 1 perfect and 0 imperfect interpolant sequences
[2024-01-26 11:32:10,199 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-01-26 11:32:10,199 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-01-26 11:32:10,200 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020041837]
[2024-01-26 11:32:10,200 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-01-26 11:32:10,204 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-01-26 11:32:10,205 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-01-26 11:32:10,218 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-01-26 11:32:10,219 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-01-26 11:32:10,220 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-01-26 11:32:10,222 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-01-26 11:32:10,222 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 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)
[2024-01-26 11:32:10,223 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-01-26 11:32:10,594 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-01-26 11:32:10,594 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-01-26 11:32:10,595 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-01-26 11:32:10,596 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-01-26 11:32:10,596 INFO  L85        PathProgramCache]: Analyzing trace with hash -1493958665, now seen corresponding path program 1 times
[2024-01-26 11:32:10,597 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-01-26 11:32:10,597 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475258100]
[2024-01-26 11:32:10,597 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-01-26 11:32:10,597 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-01-26 11:32:10,659 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-01-26 11:32:10,978 INFO  L134       CoverageAnalysis]: Checked inductivity of 1562 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1561 trivial. 0 not checked.
[2024-01-26 11:32:10,978 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-01-26 11:32:10,978 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475258100]
[2024-01-26 11:32:10,979 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475258100] provided 0 perfect and 1 imperfect interpolant sequences
[2024-01-26 11:32:10,979 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1497186140]
[2024-01-26 11:32:10,980 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-01-26 11:32:10,980 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-01-26 11:32:10,980 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-01-26 11:32:11,022 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-01-26 11:32:11,044 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-01-26 11:32:11,317 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-01-26 11:32:11,322 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1205 conjuncts, 4 conjunts are in the unsatisfiable core
[2024-01-26 11:32:11,344 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2024-01-26 11:32:11,403 INFO  L134       CoverageAnalysis]: Checked inductivity of 1562 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1561 trivial. 0 not checked.
[2024-01-26 11:32:11,403 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2024-01-26 11:32:11,449 INFO  L134       CoverageAnalysis]: Checked inductivity of 1562 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1561 trivial. 0 not checked.
[2024-01-26 11:32:11,449 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1497186140] provided 0 perfect and 2 imperfect interpolant sequences
[2024-01-26 11:32:11,449 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-01-26 11:32:11,449 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10
[2024-01-26 11:32:11,450 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122356617]
[2024-01-26 11:32:11,450 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-01-26 11:32:11,451 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-01-26 11:32:11,451 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-01-26 11:32:11,452 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-01-26 11:32:11,452 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90
[2024-01-26 11:32:11,452 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-01-26 11:32:11,454 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-01-26 11:32:11,455 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 10 states, 10 states have (on average 16.0) internal successors, (160), 10 states have internal predecessors, (160), 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)
[2024-01-26 11:32:11,455 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-01-26 11:32:11,455 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-01-26 11:32:11,789 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-01-26 11:32:11,789 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2024-01-26 11:32:11,799 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-01-26 11:32:11,997 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1
[2024-01-26 11:32:11,997 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-01-26 11:32:11,998 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-01-26 11:32:11,998 INFO  L85        PathProgramCache]: Analyzing trace with hash -1814957673, now seen corresponding path program 2 times
[2024-01-26 11:32:11,998 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-01-26 11:32:11,998 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220250078]
[2024-01-26 11:32:11,998 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-01-26 11:32:12,001 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-01-26 11:32:12,051 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-01-26 11:32:12,351 INFO  L134       CoverageAnalysis]: Checked inductivity of 1579 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1578 trivial. 0 not checked.
[2024-01-26 11:32:12,351 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-01-26 11:32:12,352 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220250078]
[2024-01-26 11:32:12,352 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220250078] provided 0 perfect and 1 imperfect interpolant sequences
[2024-01-26 11:32:12,352 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [502946418]
[2024-01-26 11:32:12,353 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-01-26 11:32:12,353 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-01-26 11:32:12,353 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-01-26 11:32:12,354 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-01-26 11:32:12,380 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-01-26 11:32:12,652 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-01-26 11:32:12,652 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2024-01-26 11:32:12,657 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1225 conjuncts, 8 conjunts are in the unsatisfiable core
[2024-01-26 11:32:12,662 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2024-01-26 11:32:12,744 INFO  L134       CoverageAnalysis]: Checked inductivity of 1579 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 1561 trivial. 0 not checked.
[2024-01-26 11:32:12,744 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2024-01-26 11:32:12,830 INFO  L134       CoverageAnalysis]: Checked inductivity of 1579 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 1561 trivial. 0 not checked.
[2024-01-26 11:32:12,830 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [502946418] provided 0 perfect and 2 imperfect interpolant sequences
[2024-01-26 11:32:12,831 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-01-26 11:32:12,831 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19
[2024-01-26 11:32:12,831 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825199577]
[2024-01-26 11:32:12,831 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-01-26 11:32:12,832 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 19 states
[2024-01-26 11:32:12,832 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-01-26 11:32:12,833 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2024-01-26 11:32:12,833 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342
[2024-01-26 11:32:12,833 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-01-26 11:32:12,834 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-01-26 11:32:12,834 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 19 states, 19 states have (on average 10.263157894736842) internal successors, (195), 19 states have internal predecessors, (195), 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)
[2024-01-26 11:32:12,834 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-01-26 11:32:12,834 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. 
[2024-01-26 11:32:12,834 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-01-26 11:32:13,129 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-01-26 11:32:13,129 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2024-01-26 11:32:13,129 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. 
[2024-01-26 11:32:13,131 INFO  L805   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-01-26 11:32:13,141 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2024-01-26 11:32:13,336 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-01-26 11:32:13,341 INFO  L445         BasicCegarLoop]: Path program histogram: [2, 1]
[2024-01-26 11:32:13,342 INFO  L308   ceAbstractionStarter]: Result for error location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION was SAFE (1/4)
[2024-01-26 11:32:13,350 INFO  L103   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-01-26 11:32:13,350 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-01-26 11:32:13,351 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-01-26 11:32:13,353 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2024-01-26 11:32:13,356 INFO  L103   denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-01-26 11:32:13,356 INFO  L166   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations.
[2024-01-26 11:32:13,357 WARN  L169   artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound!
[2024-01-26 11:32:13,357 WARN  L170   artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound.
[2024-01-26 11:32:13,357 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ========
[2024-01-26 11:32:13,357 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=LoopHeads, 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;@8c85227, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-01-26 11:32:13,357 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-01-26 11:32:13,378 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (5)] Waiting until timeout for monitored process
[2024-01-26 11:32:13,380 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-01-26 11:32:13,383 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-01-26 11:32:13,383 INFO  L85        PathProgramCache]: Analyzing trace with hash -280097819, now seen corresponding path program 1 times
[2024-01-26 11:32:13,383 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-01-26 11:32:13,383 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75983071]
[2024-01-26 11:32:13,383 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-01-26 11:32:13,383 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-01-26 11:32:13,395 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-01-26 11:32:13,412 INFO  L134       CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2024-01-26 11:32:13,412 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-01-26 11:32:13,413 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75983071]
[2024-01-26 11:32:13,413 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75983071] provided 1 perfect and 0 imperfect interpolant sequences
[2024-01-26 11:32:13,413 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-01-26 11:32:13,413 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-01-26 11:32:13,413 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394082655]
[2024-01-26 11:32:13,413 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-01-26 11:32:13,413 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-01-26 11:32:13,413 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-01-26 11:32:13,414 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-01-26 11:32:13,414 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-01-26 11:32:13,414 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-01-26 11:32:13,414 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-01-26 11:32:13,415 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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)
[2024-01-26 11:32:13,415 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-01-26 11:32:13,424 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-01-26 11:32:13,424 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-01-26 11:32:13,424 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-01-26 11:32:13,425 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-01-26 11:32:13,425 INFO  L85        PathProgramCache]: Analyzing trace with hash 529949838, now seen corresponding path program 1 times
[2024-01-26 11:32:13,425 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-01-26 11:32:13,425 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881936993]
[2024-01-26 11:32:13,425 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-01-26 11:32:13,425 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-01-26 11:32:13,435 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-01-26 11:32:13,472 INFO  L134       CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2024-01-26 11:32:13,472 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-01-26 11:32:13,472 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881936993]
[2024-01-26 11:32:13,472 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881936993] provided 0 perfect and 1 imperfect interpolant sequences
[2024-01-26 11:32:13,472 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1880583596]
[2024-01-26 11:32:13,472 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-01-26 11:32:13,473 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-01-26 11:32:13,473 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-01-26 11:32:13,475 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-01-26 11:32:13,481 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-01-26 11:32:13,598 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-01-26 11:32:13,599 INFO  L262         TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 4 conjunts are in the unsatisfiable core
[2024-01-26 11:32:13,601 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2024-01-26 11:32:13,619 INFO  L134       CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2024-01-26 11:32:13,619 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2024-01-26 11:32:13,642 INFO  L134       CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2024-01-26 11:32:13,643 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1880583596] provided 0 perfect and 2 imperfect interpolant sequences
[2024-01-26 11:32:13,643 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-01-26 11:32:13,644 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10
[2024-01-26 11:32:13,644 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290346652]
[2024-01-26 11:32:13,645 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-01-26 11:32:13,646 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-01-26 11:32:13,646 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-01-26 11:32:13,647 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-01-26 11:32:13,647 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90
[2024-01-26 11:32:13,647 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-01-26 11:32:13,648 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-01-26 11:32:13,648 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 10 states, 10 states have (on average 5.0) internal successors, (50), 10 states have internal predecessors, (50), 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)
[2024-01-26 11:32:13,648 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-01-26 11:32:13,648 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-01-26 11:32:13,691 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-01-26 11:32:13,691 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2024-01-26 11:32:13,703 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0
[2024-01-26 11:32:13,897 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-01-26 11:32:13,898 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-01-26 11:32:13,898 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-01-26 11:32:13,898 INFO  L85        PathProgramCache]: Analyzing trace with hash -2049153298, now seen corresponding path program 2 times
[2024-01-26 11:32:13,899 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-01-26 11:32:13,899 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584848920]
[2024-01-26 11:32:13,899 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-01-26 11:32:13,899 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-01-26 11:32:13,916 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-01-26 11:32:14,007 INFO  L134       CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2024-01-26 11:32:14,007 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-01-26 11:32:14,007 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584848920]
[2024-01-26 11:32:14,007 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584848920] provided 0 perfect and 1 imperfect interpolant sequences
[2024-01-26 11:32:14,007 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1896327378]
[2024-01-26 11:32:14,007 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-01-26 11:32:14,008 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-01-26 11:32:14,008 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-01-26 11:32:14,023 INFO  L229       MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-01-26 11:32:14,052 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2024-01-26 11:32:14,136 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-01-26 11:32:14,137 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2024-01-26 11:32:14,137 INFO  L262         TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 8 conjunts are in the unsatisfiable core
[2024-01-26 11:32:14,138 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2024-01-26 11:32:14,168 INFO  L134       CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2024-01-26 11:32:14,168 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2024-01-26 11:32:14,232 INFO  L134       CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2024-01-26 11:32:14,233 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1896327378] provided 0 perfect and 2 imperfect interpolant sequences
[2024-01-26 11:32:14,233 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-01-26 11:32:14,233 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18
[2024-01-26 11:32:14,233 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537492972]
[2024-01-26 11:32:14,233 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-01-26 11:32:14,233 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 18 states
[2024-01-26 11:32:14,233 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-01-26 11:32:14,234 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants.
[2024-01-26 11:32:14,234 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306
[2024-01-26 11:32:14,234 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-01-26 11:32:14,234 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-01-26 11:32:14,235 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 18 states, 18 states have (on average 3.888888888888889) internal successors, (70), 18 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-01-26 11:32:14,235 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-01-26 11:32:14,235 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. 
[2024-01-26 11:32:14,235 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-01-26 11:32:14,370 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-01-26 11:32:14,370 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2024-01-26 11:32:14,373 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. 
[2024-01-26 11:32:14,378 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0
[2024-01-26 11:32:14,578 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-01-26 11:32:14,579 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-01-26 11:32:14,579 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-01-26 11:32:14,579 INFO  L85        PathProgramCache]: Analyzing trace with hash 1582826414, now seen corresponding path program 3 times
[2024-01-26 11:32:14,582 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-01-26 11:32:14,582 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610770846]
[2024-01-26 11:32:14,583 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-01-26 11:32:14,583 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-01-26 11:32:14,612 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-01-26 11:32:14,775 INFO  L134       CoverageAnalysis]: Checked inductivity of 117 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2024-01-26 11:32:14,775 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-01-26 11:32:14,775 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610770846]
[2024-01-26 11:32:14,775 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610770846] provided 0 perfect and 1 imperfect interpolant sequences
[2024-01-26 11:32:14,775 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [374314496]
[2024-01-26 11:32:14,775 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2024-01-26 11:32:14,776 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-01-26 11:32:14,776 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-01-26 11:32:14,780 INFO  L229       MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-01-26 11:32:14,804 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2024-01-26 11:32:14,899 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s)
[2024-01-26 11:32:14,899 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2024-01-26 11:32:14,901 INFO  L262         TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 16 conjunts are in the unsatisfiable core
[2024-01-26 11:32:14,903 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2024-01-26 11:32:14,967 INFO  L134       CoverageAnalysis]: Checked inductivity of 117 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2024-01-26 11:32:14,967 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2024-01-26 11:32:15,107 INFO  L134       CoverageAnalysis]: Checked inductivity of 117 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2024-01-26 11:32:15,107 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [374314496] provided 0 perfect and 2 imperfect interpolant sequences
[2024-01-26 11:32:15,107 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-01-26 11:32:15,107 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23
[2024-01-26 11:32:15,108 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871888159]
[2024-01-26 11:32:15,108 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-01-26 11:32:15,108 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 23 states
[2024-01-26 11:32:15,108 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-01-26 11:32:15,109 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants.
[2024-01-26 11:32:15,109 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506
[2024-01-26 11:32:15,109 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-01-26 11:32:15,109 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-01-26 11:32:15,109 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 23 states, 23 states have (on average 3.6956521739130435) internal successors, (85), 23 states have internal predecessors, (85), 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)
[2024-01-26 11:32:15,109 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-01-26 11:32:15,109 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. 
[2024-01-26 11:32:15,110 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. 
[2024-01-26 11:32:15,110 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-01-26 11:32:15,331 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-01-26 11:32:15,331 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2024-01-26 11:32:15,331 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. 
[2024-01-26 11:32:15,332 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. 
[2024-01-26 11:32:15,348 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0
[2024-01-26 11:32:15,537 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6
[2024-01-26 11:32:15,537 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-01-26 11:32:15,537 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-01-26 11:32:15,537 INFO  L85        PathProgramCache]: Analyzing trace with hash -598948859, now seen corresponding path program 4 times
[2024-01-26 11:32:15,538 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-01-26 11:32:15,538 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614591352]
[2024-01-26 11:32:15,538 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-01-26 11:32:15,538 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-01-26 11:32:15,564 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-01-26 11:32:15,565 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-01-26 11:32:15,577 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-01-26 11:32:15,595 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-01-26 11:32:15,596 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2024-01-26 11:32:15,596 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining)
[2024-01-26 11:32:15,596 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-01-26 11:32:15,599 INFO  L445         BasicCegarLoop]: Path program histogram: [4, 1]
[2024-01-26 11:32:15,599 INFO  L308   ceAbstractionStarter]: Result for error location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was UNSAFE (2/4)
[2024-01-26 11:32:15,599 WARN  L234   ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-01-26 11:32:15,599 INFO  L515   ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances.
[2024-01-26 11:32:15,625 INFO  L144    ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions.
[2024-01-26 11:32:15,629 INFO  L103   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-01-26 11:32:15,630 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-01-26 11:32:15,630 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-01-26 11:32:15,630 INFO  L229       MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2024-01-26 11:32:15,634 INFO  L103   denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-01-26 11:32:15,635 INFO  L166   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations.
[2024-01-26 11:32:15,635 WARN  L169   artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound!
[2024-01-26 11:32:15,635 WARN  L170   artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound.
[2024-01-26 11:32:15,635 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ========
[2024-01-26 11:32:15,636 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=LoopHeads, 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;@8c85227, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-01-26 11:32:15,636 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-01-26 11:32:15,659 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (9)] Waiting until timeout for monitored process
[2024-01-26 11:32:52,895 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-01-26 11:32:52,895 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-01-26 11:32:52,896 INFO  L85        PathProgramCache]: Analyzing trace with hash -1736250737, now seen corresponding path program 1 times
[2024-01-26 11:32:52,896 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-01-26 11:32:52,896 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746755208]
[2024-01-26 11:32:52,896 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-01-26 11:32:52,896 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-01-26 11:32:52,930 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-01-26 11:32:53,055 INFO  L134       CoverageAnalysis]: Checked inductivity of 1849 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1849 trivial. 0 not checked.
[2024-01-26 11:32:53,055 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-01-26 11:32:53,055 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746755208]
[2024-01-26 11:32:53,055 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746755208] provided 1 perfect and 0 imperfect interpolant sequences
[2024-01-26 11:32:53,055 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-01-26 11:32:53,055 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-01-26 11:32:53,056 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950370135]
[2024-01-26 11:32:53,056 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-01-26 11:32:53,056 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-01-26 11:32:53,056 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-01-26 11:32:53,057 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-01-26 11:32:53,057 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-01-26 11:32:53,057 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-01-26 11:32:53,057 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-01-26 11:32:53,057 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 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)
[2024-01-26 11:32:53,057 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-01-26 11:33:09,294 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-01-26 11:33:09,294 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2024-01-26 11:33:09,294 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-01-26 11:33:09,294 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-01-26 11:33:09,295 INFO  L85        PathProgramCache]: Analyzing trace with hash 52880309, now seen corresponding path program 1 times
[2024-01-26 11:33:09,295 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-01-26 11:33:09,295 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122390057]
[2024-01-26 11:33:09,295 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-01-26 11:33:09,295 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-01-26 11:33:09,355 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-01-26 11:33:09,671 INFO  L134       CoverageAnalysis]: Checked inductivity of 3851 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3850 trivial. 0 not checked.
[2024-01-26 11:33:09,672 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-01-26 11:33:09,672 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122390057]
[2024-01-26 11:33:09,672 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122390057] provided 0 perfect and 1 imperfect interpolant sequences
[2024-01-26 11:33:09,672 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1530130137]
[2024-01-26 11:33:09,672 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-01-26 11:33:09,672 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-01-26 11:33:09,672 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-01-26 11:33:09,675 INFO  L229       MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-01-26 11:33:09,676 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process
[2024-01-26 11:33:10,095 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-01-26 11:33:10,102 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1886 conjuncts, 3 conjunts are in the unsatisfiable core
[2024-01-26 11:33:10,110 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2024-01-26 11:33:10,142 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-01-26 11:33:10,162 INFO  L134       CoverageAnalysis]: Checked inductivity of 3851 backedges. 1379 proven. 0 refuted. 0 times theorem prover too weak. 2472 trivial. 0 not checked.
[2024-01-26 11:33:10,162 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-01-26 11:33:10,162 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1530130137] provided 1 perfect and 0 imperfect interpolant sequences
[2024-01-26 11:33:10,162 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-01-26 11:33:10,162 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6
[2024-01-26 11:33:10,168 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737331016]
[2024-01-26 11:33:10,168 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-01-26 11:33:10,170 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-01-26 11:33:10,170 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-01-26 11:33:10,172 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-01-26 11:33:10,172 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-01-26 11:33:10,172 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-01-26 11:33:10,172 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-01-26 11:33:10,173 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 92.33333333333333) internal successors, (277), 3 states have internal predecessors, (277), 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)
[2024-01-26 11:33:10,173 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-01-26 11:33:10,173 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-01-26 11:33:26,113 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-01-26 11:33:26,114 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-01-26 11:33:26,124 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0
[2024-01-26 11:33:26,321 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9
[2024-01-26 11:33:26,322 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-01-26 11:33:26,322 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-01-26 11:33:26,322 INFO  L85        PathProgramCache]: Analyzing trace with hash 244480245, now seen corresponding path program 2 times
[2024-01-26 11:33:26,322 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-01-26 11:33:26,322 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102179052]
[2024-01-26 11:33:26,322 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-01-26 11:33:26,323 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-01-26 11:33:26,352 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-01-26 11:33:26,491 INFO  L134       CoverageAnalysis]: Checked inductivity of 1217 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1216 trivial. 0 not checked.
[2024-01-26 11:33:26,491 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-01-26 11:33:26,491 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102179052]
[2024-01-26 11:33:26,491 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102179052] provided 0 perfect and 1 imperfect interpolant sequences
[2024-01-26 11:33:26,491 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1365690422]
[2024-01-26 11:33:26,491 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-01-26 11:33:26,491 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-01-26 11:33:26,491 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-01-26 11:33:26,492 INFO  L229       MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-01-26 11:33:26,494 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process
[2024-01-26 11:33:26,928 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-01-26 11:33:26,928 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2024-01-26 11:33:26,932 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1197 conjuncts, 4 conjunts are in the unsatisfiable core
[2024-01-26 11:33:26,936 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2024-01-26 11:33:26,969 INFO  L134       CoverageAnalysis]: Checked inductivity of 1217 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1216 trivial. 0 not checked.
[2024-01-26 11:33:26,969 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2024-01-26 11:33:26,997 INFO  L134       CoverageAnalysis]: Checked inductivity of 1217 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1216 trivial. 0 not checked.
[2024-01-26 11:33:26,997 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1365690422] provided 0 perfect and 2 imperfect interpolant sequences
[2024-01-26 11:33:26,997 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-01-26 11:33:26,997 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10
[2024-01-26 11:33:26,998 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889437224]
[2024-01-26 11:33:26,998 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-01-26 11:33:26,998 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-01-26 11:33:26,998 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-01-26 11:33:26,999 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-01-26 11:33:26,999 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90
[2024-01-26 11:33:26,999 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-01-26 11:33:27,000 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-01-26 11:33:27,000 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 10 states, 10 states have (on average 20.2) internal successors, (202), 10 states have internal predecessors, (202), 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)
[2024-01-26 11:33:27,000 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-01-26 11:33:27,000 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-01-26 11:33:27,000 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-01-26 11:33:43,164 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-01-26 11:33:43,165 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-01-26 11:33:43,165 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2024-01-26 11:33:43,184 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0
[2024-01-26 11:33:43,372 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10
[2024-01-26 11:33:43,372 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-01-26 11:33:43,373 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-01-26 11:33:43,373 INFO  L85        PathProgramCache]: Analyzing trace with hash -20661835, now seen corresponding path program 3 times
[2024-01-26 11:33:43,373 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-01-26 11:33:43,373 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479086155]
[2024-01-26 11:33:43,373 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-01-26 11:33:43,374 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-01-26 11:33:43,432 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-01-26 11:33:43,730 INFO  L134       CoverageAnalysis]: Checked inductivity of 1234 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 1216 trivial. 0 not checked.
[2024-01-26 11:33:43,731 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-01-26 11:33:43,731 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479086155]
[2024-01-26 11:33:43,731 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479086155] provided 0 perfect and 1 imperfect interpolant sequences
[2024-01-26 11:33:43,731 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [254523081]
[2024-01-26 11:33:43,731 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2024-01-26 11:33:43,731 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-01-26 11:33:43,731 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-01-26 11:33:43,732 INFO  L229       MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-01-26 11:33:43,734 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process
[2024-01-26 11:33:44,049 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s)
[2024-01-26 11:33:44,049 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2024-01-26 11:33:44,051 INFO  L262         TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 6 conjunts are in the unsatisfiable core
[2024-01-26 11:33:44,056 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2024-01-26 11:33:44,108 INFO  L134       CoverageAnalysis]: Checked inductivity of 1234 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1224 trivial. 0 not checked.
[2024-01-26 11:33:44,108 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2024-01-26 11:33:44,169 INFO  L134       CoverageAnalysis]: Checked inductivity of 1234 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1224 trivial. 0 not checked.
[2024-01-26 11:33:44,170 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [254523081] provided 0 perfect and 2 imperfect interpolant sequences
[2024-01-26 11:33:44,170 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-01-26 11:33:44,170 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 19
[2024-01-26 11:33:44,170 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576989513]
[2024-01-26 11:33:44,170 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-01-26 11:33:44,171 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 19 states
[2024-01-26 11:33:44,171 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-01-26 11:33:44,171 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2024-01-26 11:33:44,172 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342
[2024-01-26 11:33:44,172 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-01-26 11:33:44,172 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-01-26 11:33:44,172 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 19 states, 19 states have (on average 12.947368421052632) internal successors, (246), 19 states have internal predecessors, (246), 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)
[2024-01-26 11:33:44,172 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-01-26 11:33:44,173 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-01-26 11:33:44,173 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. 
[2024-01-26 11:33:44,173 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-01-26 11:33:47,256 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-01-26 11:33:47,256 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-01-26 11:33:47,256 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2024-01-26 11:33:47,259 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. 
[2024-01-26 11:33:47,260 INFO  L805   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-01-26 11:33:47,267 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0
[2024-01-26 11:33:47,460 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,12 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-01-26 11:33:47,462 INFO  L445         BasicCegarLoop]: Path program histogram: [3, 1]
[2024-01-26 11:33:47,463 INFO  L308   ceAbstractionStarter]: Result for error location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION was SAFE (1/5)
[2024-01-26 11:33:47,465 INFO  L103   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-01-26 11:33:47,465 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-01-26 11:33:47,465 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-01-26 11:33:47,466 INFO  L229       MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2024-01-26 11:33:47,468 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (13)] Waiting until timeout for monitored process
[2024-01-26 11:33:47,470 INFO  L103   denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-01-26 11:33:47,470 INFO  L166   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations.
[2024-01-26 11:33:47,470 WARN  L169   artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound!
[2024-01-26 11:33:47,471 WARN  L170   artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound.
[2024-01-26 11:33:47,471 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ========
[2024-01-26 11:33:47,471 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=LoopHeads, 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;@8c85227, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-01-26 11:33:47,471 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-01-26 11:33:47,489 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-01-26 11:33:47,490 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-01-26 11:33:47,490 INFO  L85        PathProgramCache]: Analyzing trace with hash -1958879359, now seen corresponding path program 1 times
[2024-01-26 11:33:47,490 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-01-26 11:33:47,490 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478226428]
[2024-01-26 11:33:47,490 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-01-26 11:33:47,490 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-01-26 11:33:47,498 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-01-26 11:33:47,509 INFO  L134       CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked.
[2024-01-26 11:33:47,510 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-01-26 11:33:47,510 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478226428]
[2024-01-26 11:33:47,510 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478226428] provided 1 perfect and 0 imperfect interpolant sequences
[2024-01-26 11:33:47,510 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-01-26 11:33:47,510 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-01-26 11:33:47,510 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650026983]
[2024-01-26 11:33:47,510 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-01-26 11:33:47,510 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-01-26 11:33:47,510 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-01-26 11:33:47,511 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-01-26 11:33:47,511 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-01-26 11:33:47,511 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-01-26 11:33:47,511 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-01-26 11:33:47,511 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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)
[2024-01-26 11:33:47,511 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-01-26 11:33:47,520 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-01-26 11:33:47,521 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2024-01-26 11:33:47,521 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-01-26 11:33:47,521 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-01-26 11:33:47,521 INFO  L85        PathProgramCache]: Analyzing trace with hash -760726413, now seen corresponding path program 1 times
[2024-01-26 11:33:47,521 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-01-26 11:33:47,521 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141013290]
[2024-01-26 11:33:47,521 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-01-26 11:33:47,521 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-01-26 11:33:47,528 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-01-26 11:33:47,551 INFO  L134       CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked.
[2024-01-26 11:33:47,551 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-01-26 11:33:47,551 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141013290]
[2024-01-26 11:33:47,551 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141013290] provided 0 perfect and 1 imperfect interpolant sequences
[2024-01-26 11:33:47,552 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1158764084]
[2024-01-26 11:33:47,552 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-01-26 11:33:47,552 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-01-26 11:33:47,552 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-01-26 11:33:47,554 INFO  L229       MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-01-26 11:33:47,581 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process
[2024-01-26 11:33:47,719 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-01-26 11:33:47,720 INFO  L262         TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 4 conjunts are in the unsatisfiable core
[2024-01-26 11:33:47,720 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2024-01-26 11:33:47,731 INFO  L134       CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked.
[2024-01-26 11:33:47,731 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2024-01-26 11:33:47,746 INFO  L134       CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked.
[2024-01-26 11:33:47,747 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1158764084] provided 0 perfect and 2 imperfect interpolant sequences
[2024-01-26 11:33:47,747 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-01-26 11:33:47,747 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10
[2024-01-26 11:33:47,747 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597192962]
[2024-01-26 11:33:47,747 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-01-26 11:33:47,748 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-01-26 11:33:47,748 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-01-26 11:33:47,749 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-01-26 11:33:47,749 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90
[2024-01-26 11:33:47,749 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-01-26 11:33:47,750 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-01-26 11:33:47,750 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 10 states, 10 states have (on average 5.1) internal successors, (51), 10 states have internal predecessors, (51), 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)
[2024-01-26 11:33:47,750 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-01-26 11:33:47,750 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-01-26 11:33:47,790 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-01-26 11:33:47,791 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2024-01-26 11:33:47,811 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0
[2024-01-26 11:33:48,000 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13
[2024-01-26 11:33:48,000 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-01-26 11:33:48,001 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-01-26 11:33:48,001 INFO  L85        PathProgramCache]: Analyzing trace with hash -1281065677, now seen corresponding path program 2 times
[2024-01-26 11:33:48,001 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-01-26 11:33:48,001 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456243026]
[2024-01-26 11:33:48,001 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-01-26 11:33:48,001 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-01-26 11:33:48,011 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-01-26 11:33:48,067 INFO  L134       CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked.
[2024-01-26 11:33:48,067 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-01-26 11:33:48,067 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456243026]
[2024-01-26 11:33:48,067 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456243026] provided 0 perfect and 1 imperfect interpolant sequences
[2024-01-26 11:33:48,067 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [548251811]
[2024-01-26 11:33:48,068 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-01-26 11:33:48,068 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-01-26 11:33:48,068 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-01-26 11:33:48,069 INFO  L229       MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-01-26 11:33:48,092 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process
[2024-01-26 11:33:48,259 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-01-26 11:33:48,259 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2024-01-26 11:33:48,260 INFO  L262         TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 8 conjunts are in the unsatisfiable core
[2024-01-26 11:33:48,261 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2024-01-26 11:33:48,299 INFO  L134       CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked.
[2024-01-26 11:33:48,299 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2024-01-26 11:33:48,356 INFO  L134       CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked.
[2024-01-26 11:33:48,356 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [548251811] provided 0 perfect and 2 imperfect interpolant sequences
[2024-01-26 11:33:48,356 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-01-26 11:33:48,356 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18
[2024-01-26 11:33:48,357 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064808321]
[2024-01-26 11:33:48,358 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-01-26 11:33:48,358 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 18 states
[2024-01-26 11:33:48,358 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-01-26 11:33:48,359 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants.
[2024-01-26 11:33:48,359 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306
[2024-01-26 11:33:48,359 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-01-26 11:33:48,360 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-01-26 11:33:48,360 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 18 states, 18 states have (on average 3.9444444444444446) internal successors, (71), 18 states have internal predecessors, (71), 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)
[2024-01-26 11:33:48,360 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-01-26 11:33:48,360 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. 
[2024-01-26 11:33:48,360 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-01-26 11:33:48,482 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-01-26 11:33:48,482 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2024-01-26 11:33:48,482 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. 
[2024-01-26 11:33:48,487 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0
[2024-01-26 11:33:48,683 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14
[2024-01-26 11:33:48,683 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-01-26 11:33:48,683 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-01-26 11:33:48,683 INFO  L85        PathProgramCache]: Analyzing trace with hash -1662308685, now seen corresponding path program 3 times
[2024-01-26 11:33:48,683 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-01-26 11:33:48,683 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429735499]
[2024-01-26 11:33:48,684 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-01-26 11:33:48,684 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-01-26 11:33:48,700 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-01-26 11:33:48,842 INFO  L134       CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked.
[2024-01-26 11:33:48,842 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-01-26 11:33:48,842 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429735499]
[2024-01-26 11:33:48,842 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429735499] provided 0 perfect and 1 imperfect interpolant sequences
[2024-01-26 11:33:48,842 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1597581826]
[2024-01-26 11:33:48,843 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2024-01-26 11:33:48,843 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-01-26 11:33:48,843 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-01-26 11:33:48,844 INFO  L229       MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-01-26 11:33:48,847 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process
[2024-01-26 11:33:49,034 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s)
[2024-01-26 11:33:49,035 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2024-01-26 11:33:49,036 INFO  L262         TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 16 conjunts are in the unsatisfiable core
[2024-01-26 11:33:49,037 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2024-01-26 11:33:49,087 INFO  L134       CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked.
[2024-01-26 11:33:49,087 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2024-01-26 11:33:49,236 INFO  L134       CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked.
[2024-01-26 11:33:49,236 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1597581826] provided 0 perfect and 2 imperfect interpolant sequences
[2024-01-26 11:33:49,236 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-01-26 11:33:49,236 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23
[2024-01-26 11:33:49,236 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159277557]
[2024-01-26 11:33:49,237 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-01-26 11:33:49,237 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 23 states
[2024-01-26 11:33:49,237 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-01-26 11:33:49,238 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants.
[2024-01-26 11:33:49,238 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506
[2024-01-26 11:33:49,238 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-01-26 11:33:49,238 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-01-26 11:33:49,238 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 23 states, 23 states have (on average 3.739130434782609) internal successors, (86), 23 states have internal predecessors, (86), 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)
[2024-01-26 11:33:49,239 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-01-26 11:33:49,239 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. 
[2024-01-26 11:33:49,239 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. 
[2024-01-26 11:33:49,239 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-01-26 11:33:49,438 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-01-26 11:33:49,438 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2024-01-26 11:33:49,438 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. 
[2024-01-26 11:33:49,438 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. 
[2024-01-26 11:33:49,444 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0
[2024-01-26 11:33:49,639 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15
[2024-01-26 11:33:49,639 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-01-26 11:33:49,640 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-01-26 11:33:49,640 INFO  L85        PathProgramCache]: Analyzing trace with hash -2075352127, now seen corresponding path program 4 times
[2024-01-26 11:33:49,640 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-01-26 11:33:49,640 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455779185]
[2024-01-26 11:33:49,640 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-01-26 11:33:49,640 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-01-26 11:33:49,657 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-01-26 11:33:49,658 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-01-26 11:33:49,664 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-01-26 11:33:49,685 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-01-26 11:33:49,686 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2024-01-26 11:33:49,686 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining)
[2024-01-26 11:33:49,686 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16
[2024-01-26 11:33:49,687 INFO  L445         BasicCegarLoop]: Path program histogram: [4, 1]
[2024-01-26 11:33:49,688 INFO  L308   ceAbstractionStarter]: Result for error location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was UNSAFE (2/5)
[2024-01-26 11:33:49,688 WARN  L234   ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-01-26 11:33:49,688 INFO  L515   ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances.
[2024-01-26 11:33:49,708 INFO  L144    ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions.
[2024-01-26 11:33:49,710 INFO  L103   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-01-26 11:33:49,710 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-01-26 11:33:49,710 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-01-26 11:33:49,711 INFO  L229       MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2024-01-26 11:33:49,715 INFO  L103   denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-01-26 11:33:49,715 INFO  L166   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations.
[2024-01-26 11:33:49,715 WARN  L169   artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound!
[2024-01-26 11:33:49,715 WARN  L170   artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound.
[2024-01-26 11:33:49,716 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ========
[2024-01-26 11:33:49,716 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=LoopHeads, 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;@8c85227, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-01-26 11:33:49,716 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-01-26 11:33:49,726 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (17)] Waiting until timeout for monitored process