./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-ext/46_monabsex2_vs.i --full-output --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP --traceabstraction.additional.conditional.commutativity.checking COUNTEREXAMPLE --traceabstraction.criterion.for.conditional.commutativity.checking SLEEP_SET -tc /storage/repos/ultimate/releaseScripts/default/benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version b86fb0b7
Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../../../trunk/examples/svcomp/pthread-ext/46_monabsex2_vs.i -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )

 --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 134e9604c8f91a200c8250c9fbb45867ed525dc78e65c16e0a5fa44f5d71ac67 --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP --traceabstraction.additional.conditional.commutativity.checking COUNTEREXAMPLE --traceabstraction.criterion.for.conditional.commutativity.checking SLEEP_SET -tc /storage/repos/ultimate/releaseScripts/default/benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml
--- Real Ultimate output ---
This is Ultimate 0.2.5-wip.dk.conditional-comm-b86fb0b-m
[2024-10-17 10:23:24,188 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-10-17 10:23:24,256 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf
[2024-10-17 10:23:24,259 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-10-17 10:23:24,259 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-10-17 10:23:24,280 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-10-17 10:23:24,280 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-10-17 10:23:24,281 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-10-17 10:23:24,281 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-10-17 10:23:24,281 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-10-17 10:23:24,282 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-10-17 10:23:24,282 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-10-17 10:23:24,282 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-10-17 10:23:24,282 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-10-17 10:23:24,283 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-10-17 10:23:24,283 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-10-17 10:23:24,283 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-10-17 10:23:24,283 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-10-17 10:23:24,284 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-10-17 10:23:24,284 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-10-17 10:23:24,284 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-10-17 10:23:24,285 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-10-17 10:23:24,285 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-10-17 10:23:24,285 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-10-17 10:23:24,285 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-10-17 10:23:24,286 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-10-17 10:23:24,286 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-10-17 10:23:24,286 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-10-17 10:23:24,287 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-10-17 10:23:24,287 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-10-17 10:23:24,287 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2024-10-17 10:23:24,287 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-10-17 10:23:24,287 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-10-17 10:23:24,288 INFO  L153        SettingsManager]:  * DFS Order used in POR=LOOP_LOCKSTEP
[2024-10-17 10:23:24,288 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-10-17 10:23:24,288 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-10-17 10:23:24,288 INFO  L153        SettingsManager]:  * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER
[2024-10-17 10:23:24,288 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-10-17 10:23:24,289 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-10-17 10:23:24,289 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA
[2024-10-17 10:23:24,289 INFO  L153        SettingsManager]:  * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE
[2024-10-17 10:23:24,289 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.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )


Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 134e9604c8f91a200c8250c9fbb45867ed525dc78e65c16e0a5fa44f5d71ac67
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: DFS Order used in POR -> LOOP_LOCKSTEP
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional conditional commutativity checking -> COUNTEREXAMPLE
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Criterion for conditional commutativity checking -> SLEEP_SET
[2024-10-17 10:23:24,486 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-10-17 10:23:24,509 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-10-17 10:23:24,512 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-10-17 10:23:24,513 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-10-17 10:23:24,514 INFO  L274        PluginConnector]: CDTParser initialized
[2024-10-17 10:23:24,515 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread-ext/46_monabsex2_vs.i
[2024-10-17 10:23:25,780 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-10-17 10:23:25,990 INFO  L384              CDTParser]: Found 1 translation units.
[2024-10-17 10:23:25,990 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/46_monabsex2_vs.i
[2024-10-17 10:23:26,005 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/133129e23/9b38d61c43d34e87a7fb1b871a12e13a/FLAG028aa73e4
[2024-10-17 10:23:26,338 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/133129e23/9b38d61c43d34e87a7fb1b871a12e13a
[2024-10-17 10:23:26,341 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-10-17 10:23:26,342 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-10-17 10:23:26,343 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-10-17 10:23:26,343 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-10-17 10:23:26,350 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-10-17 10:23:26,351 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:23:26" (1/1) ...
[2024-10-17 10:23:26,351 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@604bf3d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:23:26, skipping insertion in model container
[2024-10-17 10:23:26,352 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:23:26" (1/1) ...
[2024-10-17 10:23:26,380 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-10-17 10:23:26,642 WARN  L247   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/46_monabsex2_vs.i[30494,30507]
[2024-10-17 10:23:26,653 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-10-17 10:23:26,665 INFO  L200         MainTranslator]: Completed pre-run
[2024-10-17 10:23:26,703 WARN  L247   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/46_monabsex2_vs.i[30494,30507]
[2024-10-17 10:23:26,709 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-10-17 10:23:26,740 INFO  L204         MainTranslator]: Completed translation
[2024-10-17 10:23:26,741 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:23:26 WrapperNode
[2024-10-17 10:23:26,741 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-10-17 10:23:26,743 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-10-17 10:23:26,743 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-10-17 10:23:26,743 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-10-17 10:23:26,749 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:23:26" (1/1) ...
[2024-10-17 10:23:26,762 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:23:26" (1/1) ...
[2024-10-17 10:23:26,778 INFO  L138                Inliner]: procedures = 168, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19
[2024-10-17 10:23:26,779 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-10-17 10:23:26,780 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-10-17 10:23:26,780 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-10-17 10:23:26,781 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-10-17 10:23:26,787 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:23:26" (1/1) ...
[2024-10-17 10:23:26,787 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:23:26" (1/1) ...
[2024-10-17 10:23:26,788 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:23:26" (1/1) ...
[2024-10-17 10:23:26,790 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:23:26" (1/1) ...
[2024-10-17 10:23:26,792 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:23:26" (1/1) ...
[2024-10-17 10:23:26,795 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:23:26" (1/1) ...
[2024-10-17 10:23:26,797 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:23:26" (1/1) ...
[2024-10-17 10:23:26,801 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:23:26" (1/1) ...
[2024-10-17 10:23:26,802 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-10-17 10:23:26,803 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-10-17 10:23:26,803 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-10-17 10:23:26,803 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-10-17 10:23:26,803 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:23:26" (1/1) ...
[2024-10-17 10:23:26,811 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2024-10-17 10:23:26,819 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-10-17 10:23:26,834 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)
[2024-10-17 10:23:26,845 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
[2024-10-17 10:23:26,877 INFO  L130     BoogieDeclarations]: Found specification of procedure thr1
[2024-10-17 10:23:26,877 INFO  L138     BoogieDeclarations]: Found implementation of procedure thr1
[2024-10-17 10:23:26,878 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2024-10-17 10:23:26,878 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-10-17 10:23:26,878 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2024-10-17 10:23:26,878 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2024-10-17 10:23:26,878 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-10-17 10:23:26,878 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-10-17 10:23:26,879 WARN  L207             CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement.
[2024-10-17 10:23:26,969 INFO  L238             CfgBuilder]: Building ICFG
[2024-10-17 10:23:26,971 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-10-17 10:23:27,034 INFO  L283             CfgBuilder]: Omitted future-live optimization because the input is a concurrent program.
[2024-10-17 10:23:27,034 INFO  L287             CfgBuilder]: Performing block encoding
[2024-10-17 10:23:27,077 INFO  L309             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-10-17 10:23:27,077 INFO  L314             CfgBuilder]: Removed 1 assume(true) statements.
[2024-10-17 10:23:27,077 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:23:27 BoogieIcfgContainer
[2024-10-17 10:23:27,078 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-10-17 10:23:27,080 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-10-17 10:23:27,080 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-10-17 10:23:27,082 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-10-17 10:23:27,082 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:23:26" (1/3) ...
[2024-10-17 10:23:27,083 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35b2a719 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:23:27, skipping insertion in model container
[2024-10-17 10:23:27,083 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:23:26" (2/3) ...
[2024-10-17 10:23:27,084 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35b2a719 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:23:27, skipping insertion in model container
[2024-10-17 10:23:27,084 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:23:27" (3/3) ...
[2024-10-17 10:23:27,085 INFO  L112   eAbstractionObserver]: Analyzing ICFG 46_monabsex2_vs.i
[2024-10-17 10:23:27,097 INFO  L209   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-10-17 10:23:27,098 INFO  L149   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-10-17 10:23:27,098 INFO  L484   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2024-10-17 10:23:27,137 INFO  L143    ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2024-10-17 10:23:27,173 INFO  L106   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-10-17 10:23:27,173 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-10-17 10:23:27,173 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-10-17 10:23:27,175 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)
[2024-10-17 10:23:27,176 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
[2024-10-17 10:23:27,235 INFO  L194   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-10-17 10:23:27,251 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-17 10:23:27,253 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread1of1ForFork0 ========
[2024-10-17 10:23:27,260 INFO  L333      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, 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;@18198272, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=COUNTEREXAMPLE, mConComCheckerCriterion=SLEEP_SET, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false
[2024-10-17 10:23:27,260 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-10-17 10:23:27,369 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-17 10:23:27,372 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-17 10:23:27,372 INFO  L85        PathProgramCache]: Analyzing trace with hash 101289174, now seen corresponding path program 1 times
[2024-10-17 10:23:27,381 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-17 10:23:27,382 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846619688]
[2024-10-17 10:23:27,383 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-17 10:23:27,383 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-17 10:23:27,475 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-17 10:23:27,610 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-17 10:23:27,610 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-17 10:23:27,610 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846619688]
[2024-10-17 10:23:27,611 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846619688] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-17 10:23:27,611 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-17 10:23:27,611 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2024-10-17 10:23:27,612 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66424273]
[2024-10-17 10:23:27,613 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-17 10:23:27,616 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-10-17 10:23:27,616 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-17 10:23:27,637 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-10-17 10:23:27,638 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-17 10:23:27,639 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-10-17 10:23:27,640 INFO  L471      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-10-17 10:23:27,641 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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)
[2024-10-17 10:23:27,641 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-10-17 10:23:27,706 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-10-17 10:23:27,709 INFO  L782   garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-10-17 10:23:27,710 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-10-17 10:23:27,718 INFO  L414         BasicCegarLoop]: Path program histogram: [1]
[2024-10-17 10:23:27,721 INFO  L312   ceAbstractionStarter]: Result for error location thr1Thread1of1ForFork0 was SAFE (1/2)
[2024-10-17 10:23:27,725 INFO  L106   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-10-17 10:23:27,725 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-10-17 10:23:27,726 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-10-17 10:23:27,727 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2024-10-17 10:23:27,729 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Waiting until timeout for monitored process
[2024-10-17 10:23:27,758 INFO  L194   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-10-17 10:23:27,761 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-17 10:23:27,761 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-10-17 10:23:27,762 INFO  L333      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, 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;@18198272, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=COUNTEREXAMPLE, mConComCheckerCriterion=SLEEP_SET, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false
[2024-10-17 10:23:27,762 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-10-17 10:23:27,794 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-10-17 10:23:27,796 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-17 10:23:27,797 INFO  L85        PathProgramCache]: Analyzing trace with hash -1445349025, now seen corresponding path program 1 times
[2024-10-17 10:23:27,797 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-17 10:23:27,797 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108466323]
[2024-10-17 10:23:27,797 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-17 10:23:27,797 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-17 10:23:27,819 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-17 10:23:27,865 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-17 10:23:27,865 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-17 10:23:27,866 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108466323]
[2024-10-17 10:23:27,866 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108466323] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-17 10:23:27,866 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-17 10:23:27,866 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-10-17 10:23:27,866 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652344450]
[2024-10-17 10:23:27,866 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-17 10:23:27,867 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-10-17 10:23:27,867 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-17 10:23:27,867 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-10-17 10:23:27,868 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-17 10:23:27,868 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-10-17 10:23:27,868 INFO  L471      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-10-17 10:23:27,869 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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)
[2024-10-17 10:23:27,869 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-10-17 10:23:27,920 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-10-17 10:23:27,921 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-10-17 10:23:27,921 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-10-17 10:23:27,921 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-17 10:23:27,922 INFO  L85        PathProgramCache]: Analyzing trace with hash -1311463543, now seen corresponding path program 1 times
[2024-10-17 10:23:27,922 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-17 10:23:27,922 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841354049]
[2024-10-17 10:23:27,922 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-17 10:23:27,922 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-17 10:23:27,931 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-10-17 10:23:27,931 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-10-17 10:23:27,939 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-10-17 10:23:27,958 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-10-17 10:23:27,958 INFO  L332         BasicCegarLoop]: Counterexample is feasible
[2024-10-17 10:23:27,958 INFO  L782   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining)
[2024-10-17 10:23:27,959 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-10-17 10:23:27,962 INFO  L414         BasicCegarLoop]: Path program histogram: [1, 1]
[2024-10-17 10:23:27,963 INFO  L312   ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE (2/2)
[2024-10-17 10:23:27,963 WARN  L239   ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-10-17 10:23:27,964 INFO  L484   ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances.
[2024-10-17 10:23:27,977 INFO  L143    ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2024-10-17 10:23:27,979 INFO  L106   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-10-17 10:23:27,980 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-10-17 10:23:27,980 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-10-17 10:23:27,982 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2024-10-17 10:23:27,983 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Waiting until timeout for monitored process
[2024-10-17 10:23:28,008 INFO  L194   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-10-17 10:23:28,009 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-17 10:23:28,009 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-10-17 10:23:28,009 INFO  L333      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, 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;@18198272, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=COUNTEREXAMPLE, mConComCheckerCriterion=SLEEP_SET, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false
[2024-10-17 10:23:28,009 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-10-17 10:23:28,101 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-10-17 10:23:28,102 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-17 10:23:28,102 INFO  L85        PathProgramCache]: Analyzing trace with hash -2010459977, now seen corresponding path program 1 times
[2024-10-17 10:23:28,102 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-17 10:23:28,102 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988837909]
[2024-10-17 10:23:28,102 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-17 10:23:28,102 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-17 10:23:28,113 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-17 10:23:28,159 INFO  L134       CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-10-17 10:23:28,160 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-17 10:23:28,160 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988837909]
[2024-10-17 10:23:28,160 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988837909] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-17 10:23:28,160 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-17 10:23:28,160 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-10-17 10:23:28,161 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020241729]
[2024-10-17 10:23:28,161 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-17 10:23:28,161 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-10-17 10:23:28,161 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-17 10:23:28,162 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-10-17 10:23:28,162 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-17 10:23:28,163 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-10-17 10:23:28,163 INFO  L471      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-10-17 10:23:28,163 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 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)
[2024-10-17 10:23:28,163 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-10-17 10:23:28,267 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-10-17 10:23:28,267 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-10-17 10:23:28,268 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-10-17 10:23:28,268 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-17 10:23:28,268 INFO  L85        PathProgramCache]: Analyzing trace with hash 1986871361, now seen corresponding path program 1 times
[2024-10-17 10:23:28,268 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-17 10:23:28,268 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126368498]
[2024-10-17 10:23:28,269 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-17 10:23:28,269 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-17 10:23:28,291 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-17 10:23:28,328 INFO  L134       CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-17 10:23:28,328 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-17 10:23:28,328 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126368498]
[2024-10-17 10:23:28,328 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126368498] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-17 10:23:28,328 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-17 10:23:28,328 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-10-17 10:23:28,328 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833575848]
[2024-10-17 10:23:28,329 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-17 10:23:28,329 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-10-17 10:23:28,329 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-17 10:23:28,329 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-10-17 10:23:28,329 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-17 10:23:28,330 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-10-17 10:23:28,330 INFO  L471      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-10-17 10:23:28,330 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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)
[2024-10-17 10:23:28,330 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-10-17 10:23:28,330 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-10-17 10:23:28,389 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-10-17 10:23:28,390 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-10-17 10:23:28,390 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-10-17 10:23:28,390 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-10-17 10:23:28,391 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-17 10:23:28,392 INFO  L85        PathProgramCache]: Analyzing trace with hash 1974454285, now seen corresponding path program 1 times
[2024-10-17 10:23:28,392 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-17 10:23:28,392 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268488650]
[2024-10-17 10:23:28,392 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-17 10:23:28,392 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-17 10:23:28,402 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-10-17 10:23:28,403 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-10-17 10:23:28,411 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-10-17 10:23:28,417 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-10-17 10:23:28,419 INFO  L332         BasicCegarLoop]: Counterexample is feasible
[2024-10-17 10:23:28,420 INFO  L782   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining)
[2024-10-17 10:23:28,420 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-10-17 10:23:28,422 INFO  L414         BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2024-10-17 10:23:28,424 INFO  L312   ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE (1/3)
[2024-10-17 10:23:28,424 WARN  L239   ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-10-17 10:23:28,424 INFO  L484   ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances.
[2024-10-17 10:23:28,436 INFO  L143    ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2024-10-17 10:23:28,440 INFO  L106   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-10-17 10:23:28,440 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-10-17 10:23:28,440 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-10-17 10:23:28,442 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)
[2024-10-17 10:23:28,446 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
[2024-10-17 10:23:28,473 INFO  L194   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-10-17 10:23:28,474 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-17 10:23:28,474 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread3of3ForFork0 ========
[2024-10-17 10:23:28,475 INFO  L333      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, 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;@18198272, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=COUNTEREXAMPLE, mConComCheckerCriterion=SLEEP_SET, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false
[2024-10-17 10:23:28,475 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-10-17 10:23:28,617 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-17 10:23:28,619 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-17 10:23:28,619 INFO  L85        PathProgramCache]: Analyzing trace with hash -418966568, now seen corresponding path program 1 times
[2024-10-17 10:23:28,619 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-17 10:23:28,619 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866583478]
[2024-10-17 10:23:28,619 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-17 10:23:28,620 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-17 10:23:28,628 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-17 10:23:28,676 INFO  L134       CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-10-17 10:23:28,677 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-17 10:23:28,677 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866583478]
[2024-10-17 10:23:28,677 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866583478] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-17 10:23:28,677 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-17 10:23:28,677 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-10-17 10:23:28,678 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465823957]
[2024-10-17 10:23:28,678 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-17 10:23:28,678 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-10-17 10:23:28,678 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-17 10:23:28,679 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-10-17 10:23:28,679 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-17 10:23:28,679 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-10-17 10:23:28,679 INFO  L471      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-10-17 10:23:28,679 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 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)
[2024-10-17 10:23:28,680 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-10-17 10:23:28,790 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-10-17 10:23:28,790 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-10-17 10:23:28,791 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-17 10:23:28,791 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-17 10:23:28,791 INFO  L85        PathProgramCache]: Analyzing trace with hash 132009259, now seen corresponding path program 1 times
[2024-10-17 10:23:28,791 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-17 10:23:28,791 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916514513]
[2024-10-17 10:23:28,792 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-17 10:23:28,792 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-17 10:23:28,803 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-17 10:23:28,835 INFO  L134       CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-17 10:23:28,836 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-17 10:23:28,836 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916514513]
[2024-10-17 10:23:28,836 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916514513] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-17 10:23:28,836 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-17 10:23:28,836 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-10-17 10:23:28,836 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304918470]
[2024-10-17 10:23:28,836 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-17 10:23:28,837 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-10-17 10:23:28,837 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-17 10:23:28,837 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-10-17 10:23:28,837 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-17 10:23:28,838 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-10-17 10:23:28,838 INFO  L471      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-10-17 10:23:28,838 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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)
[2024-10-17 10:23:28,838 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-10-17 10:23:28,838 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-10-17 10:23:29,586 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-10-17 10:23:29,587 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-10-17 10:23:29,588 INFO  L782   garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-10-17 10:23:29,588 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-10-17 10:23:29,589 INFO  L414         BasicCegarLoop]: Path program histogram: [1, 1]
[2024-10-17 10:23:29,590 INFO  L312   ceAbstractionStarter]: Result for error location thr1Thread3of3ForFork0 was SAFE (1/4)
[2024-10-17 10:23:29,591 INFO  L106   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-10-17 10:23:29,591 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-10-17 10:23:29,592 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-10-17 10:23:29,594 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2024-10-17 10:23:29,595 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (6)] Waiting until timeout for monitored process
[2024-10-17 10:23:29,621 INFO  L194   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-10-17 10:23:29,621 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-17 10:23:29,622 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-10-17 10:23:29,622 INFO  L333      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, 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;@18198272, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=COUNTEREXAMPLE, mConComCheckerCriterion=SLEEP_SET, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false
[2024-10-17 10:23:29,622 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-10-17 10:23:29,709 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-10-17 10:23:29,710 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-17 10:23:29,710 INFO  L85        PathProgramCache]: Analyzing trace with hash 1100058765, now seen corresponding path program 1 times
[2024-10-17 10:23:29,710 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-17 10:23:29,710 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339063611]
[2024-10-17 10:23:29,711 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-17 10:23:29,711 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-17 10:23:29,716 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-17 10:23:29,749 INFO  L134       CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2024-10-17 10:23:29,750 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-17 10:23:29,750 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339063611]
[2024-10-17 10:23:29,750 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339063611] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-17 10:23:29,750 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-17 10:23:29,750 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-10-17 10:23:29,751 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30151302]
[2024-10-17 10:23:29,751 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-17 10:23:29,751 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-10-17 10:23:29,751 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-17 10:23:29,751 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-10-17 10:23:29,752 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-17 10:23:29,752 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-10-17 10:23:29,752 INFO  L471      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-10-17 10:23:29,752 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 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)
[2024-10-17 10:23:29,752 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-10-17 10:23:29,824 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-10-17 10:23:29,824 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2024-10-17 10:23:29,824 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-10-17 10:23:29,825 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-17 10:23:29,825 INFO  L85        PathProgramCache]: Analyzing trace with hash -1988116192, now seen corresponding path program 1 times
[2024-10-17 10:23:29,825 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-17 10:23:29,825 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092199309]
[2024-10-17 10:23:29,825 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-17 10:23:29,825 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-17 10:23:29,830 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-17 10:23:29,850 INFO  L134       CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-10-17 10:23:29,850 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-17 10:23:29,850 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092199309]
[2024-10-17 10:23:29,850 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092199309] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-17 10:23:29,850 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-17 10:23:29,861 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-10-17 10:23:29,862 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282342845]
[2024-10-17 10:23:29,862 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-17 10:23:29,862 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-10-17 10:23:29,862 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-17 10:23:29,862 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-10-17 10:23:29,862 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-17 10:23:29,862 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-10-17 10:23:29,863 INFO  L471      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-10-17 10:23:29,863 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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)
[2024-10-17 10:23:29,863 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-10-17 10:23:29,863 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-10-17 10:23:29,940 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-10-17 10:23:29,940 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-10-17 10:23:29,941 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2024-10-17 10:23:29,941 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-10-17 10:23:29,941 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-17 10:23:29,941 INFO  L85        PathProgramCache]: Analyzing trace with hash -359515998, now seen corresponding path program 1 times
[2024-10-17 10:23:29,941 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-17 10:23:29,942 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121805312]
[2024-10-17 10:23:29,942 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-17 10:23:29,942 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-17 10:23:29,949 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-10-17 10:23:29,949 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-10-17 10:23:29,956 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-10-17 10:23:29,960 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-10-17 10:23:29,960 INFO  L332         BasicCegarLoop]: Counterexample is feasible
[2024-10-17 10:23:29,960 INFO  L782   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining)
[2024-10-17 10:23:29,961 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2024-10-17 10:23:29,962 INFO  L414         BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2024-10-17 10:23:29,962 INFO  L312   ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE (2/4)
[2024-10-17 10:23:29,962 WARN  L239   ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-10-17 10:23:29,962 INFO  L484   ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances.
[2024-10-17 10:23:29,970 INFO  L143    ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2024-10-17 10:23:29,973 INFO  L106   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-10-17 10:23:29,974 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-10-17 10:23:29,974 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-10-17 10:23:29,976 INFO  L229       MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2024-10-17 10:23:29,977 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (7)] Waiting until timeout for monitored process
[2024-10-17 10:23:30,002 INFO  L194   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-10-17 10:23:30,003 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-17 10:23:30,004 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread3of4ForFork0 ========
[2024-10-17 10:23:30,005 INFO  L333      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, 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;@18198272, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=COUNTEREXAMPLE, mConComCheckerCriterion=SLEEP_SET, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false
[2024-10-17 10:23:30,005 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-10-17 10:23:30,144 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-17 10:23:30,144 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-17 10:23:30,144 INFO  L85        PathProgramCache]: Analyzing trace with hash -1807534642, now seen corresponding path program 1 times
[2024-10-17 10:23:30,144 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-17 10:23:30,145 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712871541]
[2024-10-17 10:23:30,145 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-17 10:23:30,145 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-17 10:23:30,148 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-17 10:23:30,169 INFO  L134       CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-10-17 10:23:30,169 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-17 10:23:30,169 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712871541]
[2024-10-17 10:23:30,169 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712871541] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-17 10:23:30,169 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-17 10:23:30,169 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-10-17 10:23:30,169 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247391222]
[2024-10-17 10:23:30,169 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-17 10:23:30,169 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-10-17 10:23:30,169 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-17 10:23:30,170 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-10-17 10:23:30,170 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-17 10:23:30,170 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-10-17 10:23:30,170 INFO  L471      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-10-17 10:23:30,170 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 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)
[2024-10-17 10:23:30,170 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-10-17 10:23:30,262 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-10-17 10:23:30,263 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2024-10-17 10:23:30,263 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-17 10:23:30,263 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-17 10:23:30,263 INFO  L85        PathProgramCache]: Analyzing trace with hash -597361097, now seen corresponding path program 1 times
[2024-10-17 10:23:30,263 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-17 10:23:30,263 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852249614]
[2024-10-17 10:23:30,263 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-17 10:23:30,263 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-17 10:23:30,267 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-17 10:23:30,291 INFO  L134       CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-17 10:23:30,291 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-17 10:23:30,291 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852249614]
[2024-10-17 10:23:30,291 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852249614] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-17 10:23:30,292 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-17 10:23:30,292 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-10-17 10:23:30,292 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333514130]
[2024-10-17 10:23:30,292 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-17 10:23:30,292 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-10-17 10:23:30,292 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-17 10:23:30,292 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-10-17 10:23:30,292 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-17 10:23:30,293 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-10-17 10:23:30,293 INFO  L471      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-10-17 10:23:30,293 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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)
[2024-10-17 10:23:30,293 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-10-17 10:23:30,293 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-10-17 10:23:31,606 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-10-17 10:23:31,607 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-10-17 10:23:31,607 INFO  L782   garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-10-17 10:23:31,608 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2024-10-17 10:23:31,609 INFO  L414         BasicCegarLoop]: Path program histogram: [1, 1]
[2024-10-17 10:23:31,609 INFO  L312   ceAbstractionStarter]: Result for error location thr1Thread3of4ForFork0 was SAFE (1/5)
[2024-10-17 10:23:31,610 INFO  L106   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-10-17 10:23:31,611 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-10-17 10:23:31,611 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-10-17 10:23:31,616 INFO  L229       MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2024-10-17 10:23:31,617 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (8)] Waiting until timeout for monitored process
[2024-10-17 10:23:31,644 INFO  L194   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-10-17 10:23:31,644 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-17 10:23:31,644 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread4of4ForFork0 ========
[2024-10-17 10:23:31,645 INFO  L333      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, 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;@18198272, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=COUNTEREXAMPLE, mConComCheckerCriterion=SLEEP_SET, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false
[2024-10-17 10:23:31,645 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-10-17 10:23:31,794 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-17 10:23:31,795 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-17 10:23:31,795 INFO  L85        PathProgramCache]: Analyzing trace with hash -1314313586, now seen corresponding path program 1 times
[2024-10-17 10:23:31,795 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-17 10:23:31,796 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286332078]
[2024-10-17 10:23:31,796 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-17 10:23:31,796 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-17 10:23:31,801 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-17 10:23:31,841 INFO  L134       CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2024-10-17 10:23:31,841 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-17 10:23:31,842 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286332078]
[2024-10-17 10:23:31,842 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286332078] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-17 10:23:31,842 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-17 10:23:31,842 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-10-17 10:23:31,842 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491379901]
[2024-10-17 10:23:31,843 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-17 10:23:31,843 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-10-17 10:23:31,843 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-17 10:23:31,843 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-10-17 10:23:31,843 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-17 10:23:31,844 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-10-17 10:23:31,844 INFO  L471      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-10-17 10:23:31,844 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 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)
[2024-10-17 10:23:31,844 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-10-17 10:23:31,949 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-10-17 10:23:31,949 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2024-10-17 10:23:31,949 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-17 10:23:31,950 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-17 10:23:31,950 INFO  L85        PathProgramCache]: Analyzing trace with hash 158242423, now seen corresponding path program 1 times
[2024-10-17 10:23:31,950 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-17 10:23:31,950 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910844770]
[2024-10-17 10:23:31,950 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-17 10:23:31,951 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-17 10:23:31,957 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-17 10:23:31,986 INFO  L134       CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-10-17 10:23:31,986 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-17 10:23:31,986 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910844770]
[2024-10-17 10:23:31,986 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910844770] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-17 10:23:31,986 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-17 10:23:31,987 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-10-17 10:23:31,987 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313963254]
[2024-10-17 10:23:31,987 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-17 10:23:31,987 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-10-17 10:23:31,987 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-17 10:23:31,988 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-10-17 10:23:31,988 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-17 10:23:31,988 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-10-17 10:23:31,988 INFO  L471      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-10-17 10:23:31,988 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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)
[2024-10-17 10:23:31,988 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-10-17 10:23:31,989 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-10-17 10:23:33,143 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-10-17 10:23:33,143 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-10-17 10:23:33,144 INFO  L782   garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-10-17 10:23:33,144 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2024-10-17 10:23:33,147 INFO  L414         BasicCegarLoop]: Path program histogram: [1, 1]
[2024-10-17 10:23:33,148 INFO  L312   ceAbstractionStarter]: Result for error location thr1Thread4of4ForFork0 was SAFE (2/5)
[2024-10-17 10:23:33,151 INFO  L106   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-10-17 10:23:33,151 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-10-17 10:23:33,151 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-10-17 10:23:33,154 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)
[2024-10-17 10:23:33,155 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
[2024-10-17 10:23:33,185 INFO  L194   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-10-17 10:23:33,185 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-17 10:23:33,185 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread1of4ForFork0 ========
[2024-10-17 10:23:33,185 INFO  L333      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, 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;@18198272, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=COUNTEREXAMPLE, mConComCheckerCriterion=SLEEP_SET, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false
[2024-10-17 10:23:33,185 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-10-17 10:23:33,269 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-17 10:23:33,269 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-17 10:23:33,270 INFO  L85        PathProgramCache]: Analyzing trace with hash 384735441, now seen corresponding path program 1 times
[2024-10-17 10:23:33,270 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-17 10:23:33,270 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394486685]
[2024-10-17 10:23:33,270 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-17 10:23:33,270 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-17 10:23:33,273 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-17 10:23:33,288 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-17 10:23:33,289 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-17 10:23:33,289 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394486685]
[2024-10-17 10:23:33,289 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394486685] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-17 10:23:33,289 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-17 10:23:33,289 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2024-10-17 10:23:33,289 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3966668]
[2024-10-17 10:23:33,290 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-17 10:23:33,290 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-10-17 10:23:33,290 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-17 10:23:33,290 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-10-17 10:23:33,290 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-17 10:23:33,290 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-10-17 10:23:33,290 INFO  L471      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-10-17 10:23:33,291 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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)
[2024-10-17 10:23:33,291 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-10-17 10:23:34,399 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-10-17 10:23:34,399 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15
[2024-10-17 10:23:34,399 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-17 10:23:34,441 INFO  L85        PathProgramCache]: Analyzing trace with hash -824443591, now seen corresponding path program 1 times
[2024-10-17 10:23:34,442 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-17 10:23:34,442 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-17 10:23:34,446 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-10-17 10:23:34,446 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-10-17 10:23:34,449 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-10-17 10:23:34,455 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-17 10:23:34,459 INFO  L85        PathProgramCache]: Analyzing trace with hash 212026033, now seen corresponding path program 1 times
[2024-10-17 10:23:34,459 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-17 10:23:34,459 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456981473]
[2024-10-17 10:23:34,460 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-17 10:23:34,460 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-17 10:23:34,464 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-17 10:23:34,487 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-10-17 10:23:34,487 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-17 10:23:34,487 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456981473]
[2024-10-17 10:23:34,488 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456981473] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-17 10:23:34,488 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-17 10:23:34,488 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-10-17 10:23:34,488 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054247758]
[2024-10-17 10:23:34,488 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-17 10:23:34,488 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-10-17 10:23:34,489 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-17 10:23:34,489 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-10-17 10:23:34,489 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-17 10:23:34,489 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-10-17 10:23:34,489 INFO  L471      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-10-17 10:23:34,489 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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)
[2024-10-17 10:23:34,489 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-10-17 10:23:34,490 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-10-17 10:23:34,832 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-10-17 10:23:34,834 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-10-17 10:23:34,834 INFO  L782   garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-10-17 10:23:34,834 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,SelfDestructingSolverStorable17
[2024-10-17 10:23:34,838 INFO  L414         BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2024-10-17 10:23:34,839 INFO  L312   ceAbstractionStarter]: Result for error location thr1Thread1of4ForFork0 was SAFE (3/5)
[2024-10-17 10:23:34,840 INFO  L106   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-10-17 10:23:34,841 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-10-17 10:23:34,842 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-10-17 10:23:34,843 INFO  L229       MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2024-10-17 10:23:34,849 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (10)] Waiting until timeout for monitored process
[2024-10-17 10:23:34,878 INFO  L194   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-10-17 10:23:34,880 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-17 10:23:34,880 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread2of4ForFork0 ========
[2024-10-17 10:23:34,880 INFO  L333      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, 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;@18198272, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=COUNTEREXAMPLE, mConComCheckerCriterion=SLEEP_SET, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false
[2024-10-17 10:23:34,880 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-10-17 10:23:34,984 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-17 10:23:34,984 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-17 10:23:34,985 INFO  L85        PathProgramCache]: Analyzing trace with hash 1511345679, now seen corresponding path program 1 times
[2024-10-17 10:23:34,985 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-17 10:23:34,985 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780637818]
[2024-10-17 10:23:34,985 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-17 10:23:34,985 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-17 10:23:34,994 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-17 10:23:35,024 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-17 10:23:35,025 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-17 10:23:35,025 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780637818]
[2024-10-17 10:23:35,025 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780637818] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-17 10:23:35,025 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-17 10:23:35,025 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-10-17 10:23:35,025 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563305748]
[2024-10-17 10:23:35,025 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-17 10:23:35,026 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-10-17 10:23:35,026 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-17 10:23:35,026 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-10-17 10:23:35,026 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-17 10:23:35,026 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-10-17 10:23:35,026 INFO  L471      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-10-17 10:23:35,027 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 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)
[2024-10-17 10:23:35,027 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-10-17 10:23:35,143 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-10-17 10:23:35,144 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18
[2024-10-17 10:23:35,144 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-17 10:23:35,144 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-17 10:23:35,144 INFO  L85        PathProgramCache]: Analyzing trace with hash 607499000, now seen corresponding path program 1 times
[2024-10-17 10:23:35,145 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-17 10:23:35,145 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923464099]
[2024-10-17 10:23:35,145 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-17 10:23:35,145 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-17 10:23:35,148 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-17 10:23:35,168 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-17 10:23:35,168 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-17 10:23:35,168 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923464099]
[2024-10-17 10:23:35,168 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923464099] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-17 10:23:35,169 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-17 10:23:35,169 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-10-17 10:23:35,169 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505450631]
[2024-10-17 10:23:35,169 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-17 10:23:35,169 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-10-17 10:23:35,169 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-17 10:23:35,170 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-10-17 10:23:35,170 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-17 10:23:35,170 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-10-17 10:23:35,170 INFO  L471      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-10-17 10:23:35,170 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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)
[2024-10-17 10:23:35,170 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-10-17 10:23:35,170 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-10-17 10:23:36,177 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-10-17 10:23:36,178 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-10-17 10:23:36,178 INFO  L782   garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-10-17 10:23:36,178 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19
[2024-10-17 10:23:36,179 INFO  L414         BasicCegarLoop]: Path program histogram: [1, 1]
[2024-10-17 10:23:36,179 INFO  L312   ceAbstractionStarter]: Result for error location thr1Thread2of4ForFork0 was SAFE (4/5)
[2024-10-17 10:23:36,180 INFO  L106   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-10-17 10:23:36,180 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-10-17 10:23:36,180 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-10-17 10:23:36,182 INFO  L229       MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2024-10-17 10:23:36,184 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (11)] Waiting until timeout for monitored process
[2024-10-17 10:23:36,209 INFO  L194   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-10-17 10:23:36,210 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-17 10:23:36,210 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-10-17 10:23:36,210 INFO  L333      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, 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;@18198272, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=COUNTEREXAMPLE, mConComCheckerCriterion=SLEEP_SET, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false
[2024-10-17 10:23:36,210 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-10-17 10:23:36,320 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-10-17 10:23:36,321 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-17 10:23:36,321 INFO  L85        PathProgramCache]: Analyzing trace with hash -334959031, now seen corresponding path program 1 times
[2024-10-17 10:23:36,321 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-17 10:23:36,321 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653496308]
[2024-10-17 10:23:36,321 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-17 10:23:36,321 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-17 10:23:36,326 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-17 10:23:36,357 INFO  L134       CoverageAnalysis]: Checked inductivity of 20 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2024-10-17 10:23:36,357 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-17 10:23:36,357 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653496308]
[2024-10-17 10:23:36,357 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653496308] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-17 10:23:36,358 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-17 10:23:36,358 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-10-17 10:23:36,358 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034605009]
[2024-10-17 10:23:36,358 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-17 10:23:36,358 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-10-17 10:23:36,358 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-17 10:23:36,358 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-10-17 10:23:36,358 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-17 10:23:36,358 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-10-17 10:23:36,359 INFO  L471      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-10-17 10:23:36,359 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 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)
[2024-10-17 10:23:36,359 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-10-17 10:23:36,446 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-10-17 10:23:36,447 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20
[2024-10-17 10:23:36,447 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-10-17 10:23:36,448 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-17 10:23:36,448 INFO  L85        PathProgramCache]: Analyzing trace with hash 1747125234, now seen corresponding path program 1 times
[2024-10-17 10:23:36,448 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-17 10:23:36,448 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186672527]
[2024-10-17 10:23:36,448 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-17 10:23:36,448 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-17 10:23:36,453 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-17 10:23:36,521 INFO  L134       CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2024-10-17 10:23:36,521 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-17 10:23:36,521 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186672527]
[2024-10-17 10:23:36,521 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186672527] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-17 10:23:36,522 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-17 10:23:36,522 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-10-17 10:23:36,522 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844582014]
[2024-10-17 10:23:36,522 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-17 10:23:36,522 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-10-17 10:23:36,522 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-17 10:23:36,523 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-10-17 10:23:36,523 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-17 10:23:36,524 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-10-17 10:23:36,524 INFO  L471      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-10-17 10:23:36,524 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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)
[2024-10-17 10:23:36,524 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-10-17 10:23:36,524 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-10-17 10:23:36,667 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-10-17 10:23:36,667 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-10-17 10:23:36,668 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21
[2024-10-17 10:23:36,668 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-10-17 10:23:36,668 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-17 10:23:36,668 INFO  L85        PathProgramCache]: Analyzing trace with hash 758063385, now seen corresponding path program 1 times
[2024-10-17 10:23:36,668 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-17 10:23:36,668 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612268056]
[2024-10-17 10:23:36,668 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-17 10:23:36,669 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-17 10:23:36,682 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-10-17 10:23:36,683 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-10-17 10:23:36,689 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-10-17 10:23:36,693 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-10-17 10:23:36,694 INFO  L332         BasicCegarLoop]: Counterexample is feasible
[2024-10-17 10:23:36,694 INFO  L782   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining)
[2024-10-17 10:23:36,694 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22
[2024-10-17 10:23:36,696 INFO  L414         BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2024-10-17 10:23:36,696 INFO  L312   ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE (5/5)
[2024-10-17 10:23:36,696 WARN  L239   ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-10-17 10:23:36,696 INFO  L484   ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances.
[2024-10-17 10:23:36,706 INFO  L143    ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2024-10-17 10:23:36,708 INFO  L106   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-10-17 10:23:36,708 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-10-17 10:23:36,708 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-10-17 10:23:36,710 INFO  L229       MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2024-10-17 10:23:36,712 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (12)] Waiting until timeout for monitored process
[2024-10-17 10:23:36,749 INFO  L194   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-10-17 10:23:36,749 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-17 10:23:36,750 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread2of5ForFork0 ========
[2024-10-17 10:23:36,750 INFO  L333      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, 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;@18198272, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=COUNTEREXAMPLE, mConComCheckerCriterion=SLEEP_SET, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false
[2024-10-17 10:23:36,750 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-10-17 10:23:36,906 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-17 10:23:36,907 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-17 10:23:36,907 INFO  L85        PathProgramCache]: Analyzing trace with hash -1167846583, now seen corresponding path program 1 times
[2024-10-17 10:23:36,907 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-17 10:23:36,907 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909471276]
[2024-10-17 10:23:36,907 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-17 10:23:36,907 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-17 10:23:36,911 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-17 10:23:36,934 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-17 10:23:36,934 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-17 10:23:36,934 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909471276]
[2024-10-17 10:23:36,935 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909471276] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-17 10:23:36,935 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-17 10:23:36,935 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-10-17 10:23:36,935 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910295245]
[2024-10-17 10:23:36,935 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-17 10:23:36,935 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-10-17 10:23:36,936 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-17 10:23:36,936 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-10-17 10:23:36,936 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-17 10:23:36,936 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-10-17 10:23:36,936 INFO  L471      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-10-17 10:23:36,936 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 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)
[2024-10-17 10:23:36,936 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-10-17 10:23:37,054 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-10-17 10:23:37,054 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23
[2024-10-17 10:23:37,054 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-17 10:23:37,055 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-17 10:23:37,055 INFO  L85        PathProgramCache]: Analyzing trace with hash 1102386418, now seen corresponding path program 1 times
[2024-10-17 10:23:37,055 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-17 10:23:37,055 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870842739]
[2024-10-17 10:23:37,055 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-17 10:23:37,055 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-17 10:23:37,060 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-17 10:23:37,076 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-17 10:23:37,076 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-17 10:23:37,077 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870842739]
[2024-10-17 10:23:37,077 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870842739] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-17 10:23:37,077 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-17 10:23:37,077 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-10-17 10:23:37,077 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048291243]
[2024-10-17 10:23:37,077 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-17 10:23:37,077 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-10-17 10:23:37,078 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-17 10:23:37,078 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-10-17 10:23:37,082 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-17 10:23:37,082 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-10-17 10:23:37,082 INFO  L471      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-10-17 10:23:37,083 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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)
[2024-10-17 10:23:37,083 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-10-17 10:23:37,083 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-10-17 10:23:39,842 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-10-17 10:23:39,842 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-10-17 10:23:39,842 INFO  L782   garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-10-17 10:23:39,843 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24
[2024-10-17 10:23:39,844 INFO  L414         BasicCegarLoop]: Path program histogram: [1, 1]
[2024-10-17 10:23:39,844 INFO  L312   ceAbstractionStarter]: Result for error location thr1Thread2of5ForFork0 was SAFE (1/6)
[2024-10-17 10:23:39,845 INFO  L106   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-10-17 10:23:39,845 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-10-17 10:23:39,845 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-10-17 10:23:39,847 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)
[2024-10-17 10:23:39,848 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
[2024-10-17 10:23:39,876 INFO  L194   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-10-17 10:23:39,876 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-17 10:23:39,876 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread1of5ForFork0 ========
[2024-10-17 10:23:39,877 INFO  L333      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, 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;@18198272, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=COUNTEREXAMPLE, mConComCheckerCriterion=SLEEP_SET, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false
[2024-10-17 10:23:39,877 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-10-17 10:23:39,969 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-17 10:23:39,969 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-17 10:23:39,969 INFO  L85        PathProgramCache]: Analyzing trace with hash 1650149445, now seen corresponding path program 1 times
[2024-10-17 10:23:39,969 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-17 10:23:39,969 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643280763]
[2024-10-17 10:23:39,969 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-17 10:23:39,969 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-17 10:23:39,972 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-17 10:23:39,993 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-17 10:23:39,993 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-17 10:23:39,993 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643280763]
[2024-10-17 10:23:39,993 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643280763] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-17 10:23:39,993 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-17 10:23:39,994 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2024-10-17 10:23:39,994 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430536313]
[2024-10-17 10:23:39,994 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-17 10:23:39,994 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-10-17 10:23:39,994 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-17 10:23:39,994 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-10-17 10:23:39,995 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-17 10:23:39,995 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-10-17 10:23:39,995 INFO  L471      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-10-17 10:23:39,995 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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)
[2024-10-17 10:23:39,995 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-10-17 10:23:42,762 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-10-17 10:23:42,762 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25
[2024-10-17 10:23:42,762 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-17 10:23:42,786 INFO  L85        PathProgramCache]: Analyzing trace with hash -2098422640, now seen corresponding path program 1 times
[2024-10-17 10:23:42,786 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-17 10:23:42,786 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-17 10:23:42,792 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-10-17 10:23:42,792 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-10-17 10:23:42,796 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-10-17 10:23:42,798 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-17 10:23:42,798 INFO  L85        PathProgramCache]: Analyzing trace with hash -626620385, now seen corresponding path program 1 times
[2024-10-17 10:23:42,798 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-17 10:23:42,799 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071858705]
[2024-10-17 10:23:42,799 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-17 10:23:42,799 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-17 10:23:42,803 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-17 10:23:42,821 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-10-17 10:23:42,821 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-17 10:23:42,822 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071858705]
[2024-10-17 10:23:42,822 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071858705] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-17 10:23:42,822 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-17 10:23:42,822 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-10-17 10:23:42,822 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202924923]
[2024-10-17 10:23:42,822 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-17 10:23:42,822 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-10-17 10:23:42,822 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-17 10:23:42,823 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-10-17 10:23:42,823 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-17 10:23:42,823 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-10-17 10:23:42,823 INFO  L471      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-10-17 10:23:42,823 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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)
[2024-10-17 10:23:42,823 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-10-17 10:23:42,823 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-10-17 10:23:43,731 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-10-17 10:23:43,732 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-10-17 10:23:43,732 INFO  L782   garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-10-17 10:23:43,732 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,SelfDestructingSolverStorable27
[2024-10-17 10:23:43,733 INFO  L414         BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2024-10-17 10:23:43,733 INFO  L312   ceAbstractionStarter]: Result for error location thr1Thread1of5ForFork0 was SAFE (2/6)
[2024-10-17 10:23:43,734 INFO  L106   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-10-17 10:23:43,734 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-10-17 10:23:43,735 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-10-17 10:23:43,736 INFO  L229       MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2024-10-17 10:23:43,737 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (14)] Waiting until timeout for monitored process
[2024-10-17 10:23:43,764 INFO  L194   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-10-17 10:23:43,764 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-17 10:23:43,765 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-10-17 10:23:43,765 INFO  L333      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, 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;@18198272, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=COUNTEREXAMPLE, mConComCheckerCriterion=SLEEP_SET, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false
[2024-10-17 10:23:43,765 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-10-17 10:23:43,926 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-10-17 10:23:43,926 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-17 10:23:43,926 INFO  L85        PathProgramCache]: Analyzing trace with hash 1722719708, now seen corresponding path program 1 times
[2024-10-17 10:23:43,927 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-17 10:23:43,927 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666321080]
[2024-10-17 10:23:43,927 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-17 10:23:43,927 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-17 10:23:43,932 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-17 10:23:43,958 INFO  L134       CoverageAnalysis]: Checked inductivity of 30 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked.
[2024-10-17 10:23:43,959 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-17 10:23:43,959 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666321080]
[2024-10-17 10:23:43,959 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666321080] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-17 10:23:43,959 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-17 10:23:43,959 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-10-17 10:23:43,959 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898527969]
[2024-10-17 10:23:43,959 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-17 10:23:43,960 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-10-17 10:23:43,960 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-17 10:23:43,960 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-10-17 10:23:43,960 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-17 10:23:43,960 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-10-17 10:23:43,960 INFO  L471      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-10-17 10:23:43,960 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 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)
[2024-10-17 10:23:43,961 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-10-17 10:23:44,068 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-10-17 10:23:44,068 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28
[2024-10-17 10:23:44,068 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-10-17 10:23:44,069 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-17 10:23:44,069 INFO  L85        PathProgramCache]: Analyzing trace with hash 2038629317, now seen corresponding path program 1 times
[2024-10-17 10:23:44,069 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-17 10:23:44,069 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737567596]
[2024-10-17 10:23:44,069 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-17 10:23:44,069 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-17 10:23:44,074 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-17 10:23:44,104 INFO  L134       CoverageAnalysis]: Checked inductivity of 30 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2024-10-17 10:23:44,104 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-17 10:23:44,104 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737567596]
[2024-10-17 10:23:44,105 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737567596] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-17 10:23:44,105 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-17 10:23:44,105 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-10-17 10:23:44,105 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654761287]
[2024-10-17 10:23:44,105 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-17 10:23:44,105 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-10-17 10:23:44,105 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-17 10:23:44,106 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-10-17 10:23:44,106 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-17 10:23:44,106 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-10-17 10:23:44,106 INFO  L471      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-10-17 10:23:44,106 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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)
[2024-10-17 10:23:44,106 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-10-17 10:23:44,106 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-10-17 10:23:44,275 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-10-17 10:23:44,275 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-10-17 10:23:44,275 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29
[2024-10-17 10:23:44,275 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-10-17 10:23:44,276 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-17 10:23:44,276 INFO  L85        PathProgramCache]: Analyzing trace with hash -1422602689, now seen corresponding path program 1 times
[2024-10-17 10:23:44,276 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-17 10:23:44,276 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639079684]
[2024-10-17 10:23:44,276 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-17 10:23:44,276 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-17 10:23:44,283 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-10-17 10:23:44,283 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-10-17 10:23:44,290 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-10-17 10:23:44,295 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-10-17 10:23:44,296 INFO  L332         BasicCegarLoop]: Counterexample is feasible
[2024-10-17 10:23:44,296 INFO  L782   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining)
[2024-10-17 10:23:44,296 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30
[2024-10-17 10:23:44,297 INFO  L414         BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2024-10-17 10:23:44,298 INFO  L312   ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE (3/6)
[2024-10-17 10:23:44,298 WARN  L239   ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-10-17 10:23:44,298 INFO  L484   ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances.
[2024-10-17 10:23:44,318 INFO  L143    ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2024-10-17 10:23:44,322 INFO  L106   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-10-17 10:23:44,322 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-10-17 10:23:44,322 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-10-17 10:23:44,324 INFO  L229       MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2024-10-17 10:23:44,329 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (15)] Waiting until timeout for monitored process
[2024-10-17 10:23:44,360 INFO  L194   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-10-17 10:23:44,360 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-17 10:23:44,360 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread6of6ForFork0 ========
[2024-10-17 10:23:44,361 INFO  L333      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, 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;@18198272, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=COUNTEREXAMPLE, mConComCheckerCriterion=SLEEP_SET, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false
[2024-10-17 10:23:44,361 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-10-17 10:23:44,622 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-17 10:23:44,622 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-17 10:23:44,622 INFO  L85        PathProgramCache]: Analyzing trace with hash -1089773398, now seen corresponding path program 1 times
[2024-10-17 10:23:44,623 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-17 10:23:44,623 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280993850]
[2024-10-17 10:23:44,623 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-17 10:23:44,623 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-17 10:23:44,631 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-17 10:23:44,739 INFO  L134       CoverageAnalysis]: Checked inductivity of 30 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked.
[2024-10-17 10:23:44,740 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-17 10:23:44,740 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280993850]
[2024-10-17 10:23:44,740 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280993850] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-17 10:23:44,740 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-17 10:23:44,740 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-10-17 10:23:44,740 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855773940]
[2024-10-17 10:23:44,740 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-17 10:23:44,741 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-10-17 10:23:44,741 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-17 10:23:44,741 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-10-17 10:23:44,741 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-17 10:23:44,741 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-10-17 10:23:44,741 INFO  L471      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-10-17 10:23:44,741 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 states have internal predecessors, (21), 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)
[2024-10-17 10:23:44,741 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-10-17 10:23:44,877 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-10-17 10:23:44,877 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31
[2024-10-17 10:23:44,877 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-17 10:23:44,879 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-17 10:23:44,879 INFO  L85        PathProgramCache]: Analyzing trace with hash -1425108828, now seen corresponding path program 1 times
[2024-10-17 10:23:44,879 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-17 10:23:44,879 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806309145]
[2024-10-17 10:23:44,879 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-17 10:23:44,879 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-17 10:23:44,890 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-17 10:23:44,924 INFO  L134       CoverageAnalysis]: Checked inductivity of 30 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2024-10-17 10:23:44,924 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-17 10:23:44,924 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806309145]
[2024-10-17 10:23:44,924 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806309145] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-17 10:23:44,924 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-17 10:23:44,924 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-10-17 10:23:44,925 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60492062]
[2024-10-17 10:23:44,925 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-17 10:23:44,925 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-10-17 10:23:44,925 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-17 10:23:44,926 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-10-17 10:23:44,926 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-17 10:23:44,926 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-10-17 10:23:44,926 INFO  L471      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-10-17 10:23:44,926 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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)
[2024-10-17 10:23:44,927 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-10-17 10:23:44,927 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-10-17 10:23:59,796 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-10-17 10:23:59,797 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-10-17 10:23:59,797 INFO  L782   garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-10-17 10:23:59,797 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32
[2024-10-17 10:23:59,798 INFO  L414         BasicCegarLoop]: Path program histogram: [1, 1]
[2024-10-17 10:23:59,798 INFO  L312   ceAbstractionStarter]: Result for error location thr1Thread6of6ForFork0 was SAFE (1/7)
[2024-10-17 10:23:59,799 INFO  L106   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-10-17 10:23:59,799 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-10-17 10:23:59,799 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-10-17 10:23:59,801 INFO  L229       MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2024-10-17 10:23:59,802 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (16)] Waiting until timeout for monitored process
[2024-10-17 10:23:59,826 INFO  L194   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-10-17 10:23:59,826 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-17 10:23:59,826 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread1of6ForFork0 ========
[2024-10-17 10:23:59,827 INFO  L333      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, 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;@18198272, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=COUNTEREXAMPLE, mConComCheckerCriterion=SLEEP_SET, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false
[2024-10-17 10:23:59,827 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-10-17 10:23:59,932 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-17 10:23:59,932 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-17 10:23:59,932 INFO  L85        PathProgramCache]: Analyzing trace with hash -1512052050, now seen corresponding path program 1 times
[2024-10-17 10:23:59,932 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-17 10:23:59,932 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181820826]
[2024-10-17 10:23:59,932 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-17 10:23:59,932 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-17 10:23:59,935 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-17 10:23:59,946 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-17 10:23:59,947 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-17 10:23:59,947 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181820826]
[2024-10-17 10:23:59,947 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181820826] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-17 10:23:59,947 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-17 10:23:59,947 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2024-10-17 10:23:59,947 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563559178]
[2024-10-17 10:23:59,947 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-17 10:23:59,948 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-10-17 10:23:59,948 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-17 10:23:59,949 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-10-17 10:23:59,949 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-17 10:23:59,949 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-10-17 10:23:59,949 INFO  L471      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-10-17 10:23:59,949 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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)
[2024-10-17 10:23:59,949 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-10-17 10:24:17,999 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-10-17 10:24:18,000 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33
[2024-10-17 10:24:18,000 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-17 10:24:18,021 INFO  L85        PathProgramCache]: Analyzing trace with hash 974210527, now seen corresponding path program 1 times
[2024-10-17 10:24:18,021 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-17 10:24:18,021 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-17 10:24:18,025 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-10-17 10:24:18,025 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-10-17 10:24:18,027 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-10-17 10:24:18,029 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-17 10:24:18,029 INFO  L85        PathProgramCache]: Analyzing trace with hash 135715106, now seen corresponding path program 1 times
[2024-10-17 10:24:18,030 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-17 10:24:18,030 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388281857]
[2024-10-17 10:24:18,030 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-17 10:24:18,030 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-17 10:24:18,033 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-17 10:24:18,044 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-10-17 10:24:18,045 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-17 10:24:18,045 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388281857]
[2024-10-17 10:24:18,045 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388281857] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-17 10:24:18,045 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-17 10:24:18,045 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-10-17 10:24:18,045 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857163205]
[2024-10-17 10:24:18,045 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-17 10:24:18,045 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-10-17 10:24:18,046 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-17 10:24:18,046 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-10-17 10:24:18,046 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-17 10:24:18,046 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-10-17 10:24:18,046 INFO  L471      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-10-17 10:24:18,046 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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)
[2024-10-17 10:24:18,046 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-10-17 10:24:18,046 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-10-17 10:24:23,411 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-10-17 10:24:23,412 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-10-17 10:24:23,412 INFO  L782   garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-10-17 10:24:23,412 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,SelfDestructingSolverStorable35
[2024-10-17 10:24:23,413 INFO  L414         BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2024-10-17 10:24:23,413 INFO  L312   ceAbstractionStarter]: Result for error location thr1Thread1of6ForFork0 was SAFE (2/7)
[2024-10-17 10:24:23,414 INFO  L106   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-10-17 10:24:23,414 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-10-17 10:24:23,414 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-10-17 10:24:23,416 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)
[2024-10-17 10:24:23,417 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
[2024-10-17 10:24:23,442 INFO  L194   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-10-17 10:24:23,442 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-17 10:24:23,443 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread5of6ForFork0 ========
[2024-10-17 10:24:23,443 INFO  L333      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, 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;@18198272, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=COUNTEREXAMPLE, mConComCheckerCriterion=SLEEP_SET, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false
[2024-10-17 10:24:23,443 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-10-17 10:24:23,625 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-17 10:24:23,626 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-17 10:24:23,626 INFO  L85        PathProgramCache]: Analyzing trace with hash 443679452, now seen corresponding path program 1 times
[2024-10-17 10:24:23,626 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-17 10:24:23,626 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926219869]
[2024-10-17 10:24:23,626 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-17 10:24:23,626 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-17 10:24:23,630 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-17 10:24:23,670 INFO  L134       CoverageAnalysis]: Checked inductivity of 20 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2024-10-17 10:24:23,670 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-17 10:24:23,670 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926219869]
[2024-10-17 10:24:23,671 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926219869] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-17 10:24:23,671 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-17 10:24:23,671 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-10-17 10:24:23,671 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608379796]
[2024-10-17 10:24:23,671 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-17 10:24:23,671 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-10-17 10:24:23,671 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-17 10:24:23,671 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-10-17 10:24:23,671 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-17 10:24:23,671 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-10-17 10:24:23,672 INFO  L471      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-10-17 10:24:23,672 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 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)
[2024-10-17 10:24:23,672 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-10-17 10:24:23,808 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-10-17 10:24:23,808 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36
[2024-10-17 10:24:23,809 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-17 10:24:23,809 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-17 10:24:23,809 INFO  L85        PathProgramCache]: Analyzing trace with hash -1171243050, now seen corresponding path program 1 times
[2024-10-17 10:24:23,809 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-17 10:24:23,809 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440934392]
[2024-10-17 10:24:23,810 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-17 10:24:23,810 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-17 10:24:23,816 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-17 10:24:23,847 INFO  L134       CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2024-10-17 10:24:23,848 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-17 10:24:23,848 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440934392]
[2024-10-17 10:24:23,848 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440934392] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-17 10:24:23,848 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-17 10:24:23,848 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-10-17 10:24:23,848 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729218340]
[2024-10-17 10:24:23,848 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-17 10:24:23,849 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-10-17 10:24:23,849 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-17 10:24:23,850 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-10-17 10:24:23,851 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-17 10:24:23,851 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-10-17 10:24:23,851 INFO  L471      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-10-17 10:24:23,851 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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)
[2024-10-17 10:24:23,851 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-10-17 10:24:23,851 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.