./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread/triangular-longest-1.i --full-output --architecture 32bit


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


Checking for memory safety (deref-memtrack)
Using default analysis
Version 0e0057cc
Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/config/GemCutterMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread/triangular-longest-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )

 --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 81809963fcaff21fd6241cde97e522447f695a8b323a0a16c5a31b7f82b0f683
--- Real Ultimate output ---
This is Ultimate 0.2.4-dev-0e0057c
[2023-12-02 20:50:18,316 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-02 20:50:18,381 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Default.epf
[2023-12-02 20:50:18,386 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-02 20:50:18,387 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-02 20:50:18,408 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-02 20:50:18,409 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-02 20:50:18,410 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-02 20:50:18,410 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-02 20:50:18,411 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-02 20:50:18,412 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-02 20:50:18,412 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-02 20:50:18,413 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-02 20:50:18,413 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-02 20:50:18,414 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-02 20:50:18,414 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-12-02 20:50:18,415 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-02 20:50:18,415 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-02 20:50:18,416 INFO  L153        SettingsManager]:  * Check for the main procedure if all allocated memory was freed=true
[2023-12-02 20:50:18,416 INFO  L153        SettingsManager]:  * Bitprecise bitfields=true
[2023-12-02 20:50:18,416 INFO  L153        SettingsManager]:  * SV-COMP memtrack compatibility mode=true
[2023-12-02 20:50:18,418 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-02 20:50:18,418 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-02 20:50:18,419 INFO  L153        SettingsManager]:  * Check unreachability of reach_error function=false
[2023-12-02 20:50:18,419 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-02 20:50:18,419 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-02 20:50:18,420 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-02 20:50:18,420 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-02 20:50:18,421 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-02 20:50:18,421 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-02 20:50:18,421 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-12-02 20:50:18,422 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-02 20:50:18,422 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-02 20:50:18,422 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-12-02 20:50:18,422 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-12-02 20:50:18,422 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-02 20:50:18,423 INFO  L153        SettingsManager]:  * Abstraction used for commutativity in POR=VARIABLES_GLOBAL
[2023-12-02 20:50:18,423 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA
[2023-12-02 20:50:18,423 INFO  L153        SettingsManager]:  * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE
[2023-12-02 20:50:18,423 INFO  L153        SettingsManager]:  * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER
[2023-12-02 20:50:18,423 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/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 -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx
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 valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )


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 -> 81809963fcaff21fd6241cde97e522447f695a8b323a0a16c5a31b7f82b0f683
[2023-12-02 20:50:18,660 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-02 20:50:18,681 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-02 20:50:18,684 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-02 20:50:18,685 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-02 20:50:18,685 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-02 20:50:18,687 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/../../sv-benchmarks/c/pthread/triangular-longest-1.i
[2023-12-02 20:50:21,433 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-02 20:50:21,650 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-02 20:50:21,650 INFO  L180              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/sv-benchmarks/c/pthread/triangular-longest-1.i
[2023-12-02 20:50:21,667 INFO  L427              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/data/0163650da/6d5f506be791497cba5f8eca8bf817fb/FLAGb903abd4e
[2023-12-02 20:50:21,681 INFO  L435              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/data/0163650da/6d5f506be791497cba5f8eca8bf817fb
[2023-12-02 20:50:21,684 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-02 20:50:21,685 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2023-12-02 20:50:21,687 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-02 20:50:21,687 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-02 20:50:21,692 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-02 20:50:21,692 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:50:21" (1/1) ...
[2023-12-02 20:50:21,694 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@553d9dd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:50:21, skipping insertion in model container
[2023-12-02 20:50:21,694 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:50:21" (1/1) ...
[2023-12-02 20:50:21,745 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-02 20:50:22,054 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-02 20:50:22,065 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-02 20:50:22,104 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-02 20:50:22,136 WARN  L675               CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler.
[2023-12-02 20:50:22,136 WARN  L675               CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler.
[2023-12-02 20:50:22,144 INFO  L206         MainTranslator]: Completed translation
[2023-12-02 20:50:22,145 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:50:22 WrapperNode
[2023-12-02 20:50:22,145 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-02 20:50:22,146 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-02 20:50:22,146 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-02 20:50:22,147 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-02 20:50:22,154 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:50:22" (1/1) ...
[2023-12-02 20:50:22,168 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:50:22" (1/1) ...
[2023-12-02 20:50:22,189 INFO  L138                Inliner]: procedures = 169, calls = 25, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 48
[2023-12-02 20:50:22,189 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-02 20:50:22,190 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-02 20:50:22,190 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-02 20:50:22,190 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-02 20:50:22,200 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:50:22" (1/1) ...
[2023-12-02 20:50:22,200 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:50:22" (1/1) ...
[2023-12-02 20:50:22,203 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:50:22" (1/1) ...
[2023-12-02 20:50:22,203 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:50:22" (1/1) ...
[2023-12-02 20:50:22,209 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:50:22" (1/1) ...
[2023-12-02 20:50:22,212 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:50:22" (1/1) ...
[2023-12-02 20:50:22,214 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:50:22" (1/1) ...
[2023-12-02 20:50:22,216 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:50:22" (1/1) ...
[2023-12-02 20:50:22,219 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-02 20:50:22,220 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-02 20:50:22,220 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-02 20:50:22,220 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-02 20:50:22,221 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:50:22" (1/1) ...
[2023-12-02 20:50:22,227 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-12-02 20:50:22,238 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3
[2023-12-02 20:50:22,250 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-12-02 20:50:22,253 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-12-02 20:50:22,288 INFO  L130     BoogieDeclarations]: Found specification of procedure t1
[2023-12-02 20:50:22,288 INFO  L138     BoogieDeclarations]: Found implementation of procedure t1
[2023-12-02 20:50:22,288 INFO  L130     BoogieDeclarations]: Found specification of procedure t2
[2023-12-02 20:50:22,288 INFO  L138     BoogieDeclarations]: Found implementation of procedure t2
[2023-12-02 20:50:22,289 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2023-12-02 20:50:22,289 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2023-12-02 20:50:22,289 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-02 20:50:22,289 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2023-12-02 20:50:22,289 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-12-02 20:50:22,289 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2023-12-02 20:50:22,290 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2023-12-02 20:50:22,290 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-02 20:50:22,290 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-02 20:50:22,292 WARN  L213             CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement
[2023-12-02 20:50:22,421 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-02 20:50:22,424 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-02 20:50:22,569 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-02 20:50:22,654 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-02 20:50:22,654 INFO  L309             CfgBuilder]: Removed 2 assume(true) statements.
[2023-12-02 20:50:22,655 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:50:22 BoogieIcfgContainer
[2023-12-02 20:50:22,655 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-02 20:50:22,657 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-02 20:50:22,657 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-02 20:50:22,660 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-02 20:50:22,660 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:50:21" (1/3) ...
[2023-12-02 20:50:22,661 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c1b24c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:50:22, skipping insertion in model container
[2023-12-02 20:50:22,661 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:50:22" (2/3) ...
[2023-12-02 20:50:22,662 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c1b24c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:50:22, skipping insertion in model container
[2023-12-02 20:50:22,662 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:50:22" (3/3) ...
[2023-12-02 20:50:22,663 INFO  L112   eAbstractionObserver]: Analyzing ICFG triangular-longest-1.i
[2023-12-02 20:50:22,683 INFO  L203   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-02 20:50:22,683 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations.
[2023-12-02 20:50:22,684 INFO  L514   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2023-12-02 20:50:22,720 INFO  L144    ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2023-12-02 20:50:22,772 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-02 20:50:22,772 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2023-12-02 20:50:22,773 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3
[2023-12-02 20:50:22,774 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2023-12-02 20:50:22,775 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process
[2023-12-02 20:50:22,818 INFO  L159   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2023-12-02 20:50:22,827 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2023-12-02 20:50:22,832 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@6e95f91b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-02 20:50:22,833 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 8 error locations.
[2023-12-02 20:50:22,980 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] ===
[2023-12-02 20:50:22,984 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-02 20:50:22,984 INFO  L85        PathProgramCache]: Analyzing trace with hash -1605654404, now seen corresponding path program 1 times
[2023-12-02 20:50:22,991 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-02 20:50:22,992 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117840414]
[2023-12-02 20:50:22,992 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-02 20:50:22,992 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-02 20:50:23,115 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-02 20:50:23,460 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-02 20:50:23,461 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-02 20:50:23,461 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117840414]
[2023-12-02 20:50:23,462 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117840414] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-02 20:50:23,462 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-02 20:50:23,463 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-02 20:50:23,464 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987624566]
[2023-12-02 20:50:23,465 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-02 20:50:23,470 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-02 20:50:23,470 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-02 20:50:23,495 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-02 20:50:23,496 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-02 20:50:23,496 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-02 20:50:23,500 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2023-12-02 20:50:23,501 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 3 states have (on average 4.0) 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)
[2023-12-02 20:50:23,501 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2023-12-02 20:50:23,570 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-02 20:50:23,571 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-12-02 20:50:23,571 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] ===
[2023-12-02 20:50:23,572 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-02 20:50:23,572 INFO  L85        PathProgramCache]: Analyzing trace with hash -1605653309, now seen corresponding path program 1 times
[2023-12-02 20:50:23,572 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-02 20:50:23,573 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197682488]
[2023-12-02 20:50:23,573 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-02 20:50:23,573 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-02 20:50:23,592 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-02 20:50:23,720 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-02 20:50:23,721 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-02 20:50:23,721 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197682488]
[2023-12-02 20:50:23,721 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197682488] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-02 20:50:23,721 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-02 20:50:23,721 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-02 20:50:23,722 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643696988]
[2023-12-02 20:50:23,722 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-02 20:50:23,723 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-02 20:50:23,723 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-02 20:50:23,724 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-02 20:50:23,724 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-02 20:50:23,724 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-02 20:50:23,725 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2023-12-02 20:50:23,726 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 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)
[2023-12-02 20:50:23,726 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. 
[2023-12-02 20:50:23,726 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2023-12-02 20:50:23,874 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-02 20:50:23,874 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2023-12-02 20:50:23,874 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-12-02 20:50:23,874 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] ===
[2023-12-02 20:50:23,875 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-02 20:50:23,875 INFO  L85        PathProgramCache]: Analyzing trace with hash 1183946059, now seen corresponding path program 1 times
[2023-12-02 20:50:23,875 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-02 20:50:23,876 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246559038]
[2023-12-02 20:50:23,876 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-02 20:50:23,876 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-02 20:50:23,908 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-02 20:50:24,057 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-02 20:50:24,057 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-02 20:50:24,058 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246559038]
[2023-12-02 20:50:24,058 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246559038] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-02 20:50:24,058 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1321451717]
[2023-12-02 20:50:24,058 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-02 20:50:24,058 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-02 20:50:24,059 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3
[2023-12-02 20:50:24,080 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-02 20:50:24,081 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2023-12-02 20:50:24,161 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-02 20:50:24,163 INFO  L262         TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 9 conjunts are in the unsatisfiable core
[2023-12-02 20:50:24,167 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-02 20:50:24,265 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-02 20:50:24,265 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-02 20:50:24,436 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-02 20:50:24,437 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1321451717] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-02 20:50:24,437 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-12-02 20:50:24,437 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11
[2023-12-02 20:50:24,437 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690549895]
[2023-12-02 20:50:24,437 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-12-02 20:50:24,438 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2023-12-02 20:50:24,438 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-02 20:50:24,439 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2023-12-02 20:50:24,440 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132
[2023-12-02 20:50:24,440 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-02 20:50:24,441 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2023-12-02 20:50:24,441 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 12 states, 12 states have (on average 3.75) internal successors, (45), 11 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-02 20:50:24,441 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. 
[2023-12-02 20:50:24,441 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2023-12-02 20:50:24,441 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2023-12-02 20:50:24,736 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-02 20:50:24,736 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2023-12-02 20:50:24,736 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2023-12-02 20:50:24,750 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2023-12-02 20:50:24,937 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-02 20:50:24,938 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] ===
[2023-12-02 20:50:24,938 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-02 20:50:24,938 INFO  L85        PathProgramCache]: Analyzing trace with hash 1076877793, now seen corresponding path program 1 times
[2023-12-02 20:50:24,938 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-02 20:50:24,938 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011943035]
[2023-12-02 20:50:24,939 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-02 20:50:24,939 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-02 20:50:24,957 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-02 20:50:25,198 INFO  L134       CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-02 20:50:25,198 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-02 20:50:25,199 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011943035]
[2023-12-02 20:50:25,199 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011943035] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-02 20:50:25,199 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [991674935]
[2023-12-02 20:50:25,199 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-02 20:50:25,199 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-02 20:50:25,199 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3
[2023-12-02 20:50:25,201 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-02 20:50:25,204 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2023-12-02 20:50:25,284 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-02 20:50:25,285 INFO  L262         TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 13 conjunts are in the unsatisfiable core
[2023-12-02 20:50:25,288 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-02 20:50:25,440 INFO  L134       CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-02 20:50:25,440 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-02 20:50:25,712 INFO  L134       CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-02 20:50:25,713 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [991674935] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-02 20:50:25,713 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-12-02 20:50:25,713 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 19
[2023-12-02 20:50:25,713 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399417636]
[2023-12-02 20:50:25,713 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-12-02 20:50:25,714 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 20 states
[2023-12-02 20:50:25,714 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-02 20:50:25,715 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants.
[2023-12-02 20:50:25,716 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380
[2023-12-02 20:50:25,716 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-02 20:50:25,717 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2023-12-02 20:50:25,717 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 20 states, 20 states have (on average 3.5) internal successors, (70), 19 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-02 20:50:25,717 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. 
[2023-12-02 20:50:25,717 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2023-12-02 20:50:25,717 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. 
[2023-12-02 20:50:25,717 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2023-12-02 20:50:26,380 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-02 20:50:26,381 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2023-12-02 20:50:26,381 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2023-12-02 20:50:26,381 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. 
[2023-12-02 20:50:26,387 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2023-12-02 20:50:26,582 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-02 20:50:26,582 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] ===
[2023-12-02 20:50:26,582 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-02 20:50:26,583 INFO  L85        PathProgramCache]: Analyzing trace with hash 330125325, now seen corresponding path program 2 times
[2023-12-02 20:50:26,583 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-02 20:50:26,583 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512487827]
[2023-12-02 20:50:26,583 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-02 20:50:26,583 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-02 20:50:26,609 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-02 20:50:27,037 INFO  L134       CoverageAnalysis]: Checked inductivity of 127 backedges. 0 proven. 127 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-02 20:50:27,037 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-02 20:50:27,038 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512487827]
[2023-12-02 20:50:27,038 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512487827] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-02 20:50:27,038 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2132144265]
[2023-12-02 20:50:27,038 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2023-12-02 20:50:27,038 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-02 20:50:27,039 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3
[2023-12-02 20:50:27,040 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-02 20:50:27,044 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2023-12-02 20:50:27,135 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2023-12-02 20:50:27,136 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2023-12-02 20:50:27,137 INFO  L262         TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 21 conjunts are in the unsatisfiable core
[2023-12-02 20:50:27,141 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-02 20:50:27,343 INFO  L134       CoverageAnalysis]: Checked inductivity of 127 backedges. 0 proven. 127 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-02 20:50:27,343 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-02 20:50:27,943 INFO  L134       CoverageAnalysis]: Checked inductivity of 127 backedges. 0 proven. 127 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-02 20:50:27,944 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2132144265] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-02 20:50:27,944 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-12-02 20:50:27,944 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 35
[2023-12-02 20:50:27,944 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346030945]
[2023-12-02 20:50:27,945 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-12-02 20:50:27,945 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 36 states
[2023-12-02 20:50:27,945 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-02 20:50:27,947 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants.
[2023-12-02 20:50:27,948 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=283, Invalid=977, Unknown=0, NotChecked=0, Total=1260
[2023-12-02 20:50:27,948 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-02 20:50:27,949 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2023-12-02 20:50:27,949 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 36 states, 36 states have (on average 3.25) internal successors, (117), 35 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-02 20:50:27,949 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. 
[2023-12-02 20:50:27,949 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2023-12-02 20:50:27,950 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. 
[2023-12-02 20:50:27,950 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. 
[2023-12-02 20:50:27,950 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2023-12-02 20:50:29,595 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-02 20:50:29,596 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2023-12-02 20:50:29,596 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2023-12-02 20:50:29,596 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. 
[2023-12-02 20:50:29,596 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. 
[2023-12-02 20:50:29,601 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2023-12-02 20:50:29,797 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-02 20:50:29,797 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] ===
[2023-12-02 20:50:29,797 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-02 20:50:29,798 INFO  L85        PathProgramCache]: Analyzing trace with hash -636096411, now seen corresponding path program 3 times
[2023-12-02 20:50:29,798 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-02 20:50:29,798 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892783493]
[2023-12-02 20:50:29,798 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-02 20:50:29,798 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-02 20:50:29,831 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-02 20:50:30,896 INFO  L134       CoverageAnalysis]: Checked inductivity of 631 backedges. 0 proven. 631 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-02 20:50:30,896 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-02 20:50:30,897 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892783493]
[2023-12-02 20:50:30,897 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892783493] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-02 20:50:30,897 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [705685479]
[2023-12-02 20:50:30,897 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2023-12-02 20:50:30,897 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-02 20:50:30,898 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3
[2023-12-02 20:50:30,899 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-02 20:50:30,899 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2023-12-02 20:50:31,006 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 16 check-sat command(s)
[2023-12-02 20:50:31,007 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2023-12-02 20:50:31,009 INFO  L262         TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 37 conjunts are in the unsatisfiable core
[2023-12-02 20:50:31,014 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-02 20:50:31,333 INFO  L134       CoverageAnalysis]: Checked inductivity of 631 backedges. 0 proven. 631 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-02 20:50:31,333 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-02 20:50:31,905 INFO  L134       CoverageAnalysis]: Checked inductivity of 631 backedges. 0 proven. 631 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-02 20:50:31,905 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [705685479] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-02 20:50:31,905 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-12-02 20:50:31,906 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 34, 34] total 46
[2023-12-02 20:50:31,906 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943545234]
[2023-12-02 20:50:31,906 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-12-02 20:50:31,907 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 47 states
[2023-12-02 20:50:31,907 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-02 20:50:31,908 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants.
[2023-12-02 20:50:31,910 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=494, Invalid=1668, Unknown=0, NotChecked=0, Total=2162
[2023-12-02 20:50:31,910 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-02 20:50:31,911 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2023-12-02 20:50:31,911 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 47 states, 47 states have (on average 3.297872340425532) internal successors, (155), 46 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-02 20:50:31,912 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. 
[2023-12-02 20:50:31,912 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2023-12-02 20:50:31,912 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. 
[2023-12-02 20:50:31,912 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. 
[2023-12-02 20:50:31,912 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. 
[2023-12-02 20:50:31,912 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2023-12-02 20:50:34,384 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-02 20:50:34,384 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2023-12-02 20:50:34,384 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2023-12-02 20:50:34,385 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. 
[2023-12-02 20:50:34,385 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. 
[2023-12-02 20:50:34,385 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. 
[2023-12-02 20:50:34,391 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0
[2023-12-02 20:50:34,585 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-02 20:50:34,586 INFO  L420      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] ===
[2023-12-02 20:50:34,586 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-02 20:50:34,586 INFO  L85        PathProgramCache]: Analyzing trace with hash -596924889, now seen corresponding path program 4 times
[2023-12-02 20:50:34,586 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-02 20:50:34,587 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299975497]
[2023-12-02 20:50:34,587 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-02 20:50:34,587 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-02 20:50:34,623 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-02 20:50:35,204 INFO  L134       CoverageAnalysis]: Checked inductivity of 1261 backedges. 1145 proven. 115 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2023-12-02 20:50:35,205 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-02 20:50:35,205 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299975497]
[2023-12-02 20:50:35,205 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299975497] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-02 20:50:35,206 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [248955546]
[2023-12-02 20:50:35,206 INFO  L93    rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
[2023-12-02 20:50:35,206 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-02 20:50:35,206 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3
[2023-12-02 20:50:35,207 INFO  L229       MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-02 20:50:35,210 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2023-12-02 20:50:35,332 INFO  L228   tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2023-12-02 20:50:35,332 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2023-12-02 20:50:35,334 INFO  L262         TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 23 conjunts are in the unsatisfiable core
[2023-12-02 20:50:35,340 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-02 20:50:35,873 INFO  L134       CoverageAnalysis]: Checked inductivity of 1261 backedges. 1261 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-02 20:50:35,873 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-02 20:50:35,874 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [248955546] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-02 20:50:35,874 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-02 20:50:35,874 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [23] total 45
[2023-12-02 20:50:35,874 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887089194]
[2023-12-02 20:50:35,874 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-02 20:50:35,875 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 24 states
[2023-12-02 20:50:35,875 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-02 20:50:35,876 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants.
[2023-12-02 20:50:35,877 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=508, Invalid=1472, Unknown=0, NotChecked=0, Total=1980
[2023-12-02 20:50:35,877 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-02 20:50:35,877 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2023-12-02 20:50:35,878 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 24 states, 24 states have (on average 5.833333333333333) internal successors, (140), 24 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-02 20:50:35,878 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. 
[2023-12-02 20:50:35,878 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2023-12-02 20:50:35,878 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. 
[2023-12-02 20:50:35,878 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. 
[2023-12-02 20:50:35,878 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. 
[2023-12-02 20:50:35,878 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 87 states. 
[2023-12-02 20:50:35,878 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2023-12-02 20:50:37,079 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-02 20:50:37,079 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2023-12-02 20:50:37,080 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. 
[2023-12-02 20:50:37,080 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. 
[2023-12-02 20:50:37,080 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. 
[2023-12-02 20:50:37,080 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. 
[2023-12-02 20:50:37,080 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. 
[2023-12-02 20:50:37,086 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0
[2023-12-02 20:50:37,281 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-02 20:50:37,281 INFO  L420      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] ===
[2023-12-02 20:50:37,282 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-02 20:50:37,282 INFO  L85        PathProgramCache]: Analyzing trace with hash 181396321, now seen corresponding path program 2 times
[2023-12-02 20:50:37,282 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-02 20:50:37,282 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538580403]
[2023-12-02 20:50:37,282 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-02 20:50:37,282 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-02 20:50:37,293 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-02 20:50:37,381 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-02 20:50:37,381 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-02 20:50:37,381 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538580403]
[2023-12-02 20:50:37,382 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538580403] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-02 20:50:37,382 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [494923209]
[2023-12-02 20:50:37,382 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2023-12-02 20:50:37,382 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-02 20:50:37,398 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3
[2023-12-02 20:50:37,399 INFO  L229       MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-02 20:50:37,401 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2023-12-02 20:50:37,470 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2023-12-02 20:50:37,471 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2023-12-02 20:50:37,472 INFO  L262         TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 8 conjunts are in the unsatisfiable core
[2023-12-02 20:50:37,473 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-02 20:50:37,511 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-02 20:50:37,511 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-02 20:50:37,591 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-02 20:50:37,591 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [494923209] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-02 20:50:37,591 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-12-02 20:50:37,591 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10
[2023-12-02 20:50:37,592 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452072832]
[2023-12-02 20:50:37,592 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-12-02 20:50:37,592 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2023-12-02 20:50:37,592 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-02 20:50:37,593 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2023-12-02 20:50:37,593 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110
[2023-12-02 20:50:37,593 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-02 20:50:37,594 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2023-12-02 20:50:37,594 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 11 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 10 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-02 20:50:37,594 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. 
[2023-12-02 20:50:37,594 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2023-12-02 20:50:37,594 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. 
[2023-12-02 20:50:37,594 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. 
[2023-12-02 20:50:37,595 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. 
[2023-12-02 20:50:37,595 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. 
[2023-12-02 20:50:37,595 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. 
[2023-12-02 20:50:37,595 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2023-12-02 20:50:38,172 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-02 20:50:38,173 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2023-12-02 20:50:38,173 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. 
[2023-12-02 20:50:38,173 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. 
[2023-12-02 20:50:38,173 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. 
[2023-12-02 20:50:38,173 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. 
[2023-12-02 20:50:38,173 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. 
[2023-12-02 20:50:38,173 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. 
[2023-12-02 20:50:38,179 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0
[2023-12-02 20:50:38,374 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-02 20:50:38,374 INFO  L420      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] ===
[2023-12-02 20:50:38,375 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-02 20:50:38,375 INFO  L85        PathProgramCache]: Analyzing trace with hash 215632605, now seen corresponding path program 1 times
[2023-12-02 20:50:38,375 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-02 20:50:38,375 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271650678]
[2023-12-02 20:50:38,375 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-02 20:50:38,375 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-02 20:50:38,401 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-02 20:50:38,621 INFO  L134       CoverageAnalysis]: Checked inductivity of 597 backedges. 0 proven. 172 refuted. 0 times theorem prover too weak. 425 trivial. 0 not checked.
[2023-12-02 20:50:38,621 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-02 20:50:38,621 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271650678]
[2023-12-02 20:50:38,622 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271650678] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-02 20:50:38,622 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1495468960]
[2023-12-02 20:50:38,622 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-02 20:50:38,622 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-02 20:50:38,622 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3
[2023-12-02 20:50:38,624 INFO  L229       MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-02 20:50:38,626 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process
[2023-12-02 20:50:38,717 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-02 20:50:38,719 INFO  L262         TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 12 conjunts are in the unsatisfiable core
[2023-12-02 20:50:38,721 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-02 20:50:38,963 INFO  L134       CoverageAnalysis]: Checked inductivity of 597 backedges. 0 proven. 172 refuted. 0 times theorem prover too weak. 425 trivial. 0 not checked.
[2023-12-02 20:50:38,963 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-02 20:50:39,279 INFO  L134       CoverageAnalysis]: Checked inductivity of 597 backedges. 0 proven. 172 refuted. 0 times theorem prover too weak. 425 trivial. 0 not checked.
[2023-12-02 20:50:39,280 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1495468960] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-02 20:50:39,280 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-12-02 20:50:39,280 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 18
[2023-12-02 20:50:39,281 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579494940]
[2023-12-02 20:50:39,281 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-12-02 20:50:39,281 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 19 states
[2023-12-02 20:50:39,281 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-02 20:50:39,282 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2023-12-02 20:50:39,283 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=267, Unknown=0, NotChecked=0, Total=342
[2023-12-02 20:50:39,283 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-02 20:50:39,283 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2023-12-02 20:50:39,284 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 19 states, 19 states have (on average 3.5789473684210527) internal successors, (68), 18 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-02 20:50:39,284 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. 
[2023-12-02 20:50:39,284 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2023-12-02 20:50:39,284 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. 
[2023-12-02 20:50:39,285 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. 
[2023-12-02 20:50:39,285 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. 
[2023-12-02 20:50:39,285 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. 
[2023-12-02 20:50:39,285 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. 
[2023-12-02 20:50:39,285 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. 
[2023-12-02 20:50:39,285 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2023-12-02 20:50:40,175 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-02 20:50:40,175 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2023-12-02 20:50:40,175 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. 
[2023-12-02 20:50:40,176 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. 
[2023-12-02 20:50:40,176 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. 
[2023-12-02 20:50:40,176 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. 
[2023-12-02 20:50:40,176 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. 
[2023-12-02 20:50:40,176 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. 
[2023-12-02 20:50:40,176 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. 
[2023-12-02 20:50:40,181 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0
[2023-12-02 20:50:40,377 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-02 20:50:40,377 INFO  L420      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] ===
[2023-12-02 20:50:40,377 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-02 20:50:40,378 INFO  L85        PathProgramCache]: Analyzing trace with hash -748550327, now seen corresponding path program 2 times
[2023-12-02 20:50:40,378 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-02 20:50:40,378 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309884364]
[2023-12-02 20:50:40,378 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-02 20:50:40,378 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-02 20:50:40,396 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-02 20:50:40,798 INFO  L134       CoverageAnalysis]: Checked inductivity of 647 backedges. 0 proven. 400 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked.
[2023-12-02 20:50:40,799 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-02 20:50:40,799 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309884364]
[2023-12-02 20:50:40,799 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309884364] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-02 20:50:40,799 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1951258305]
[2023-12-02 20:50:40,799 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2023-12-02 20:50:40,800 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-02 20:50:40,800 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3
[2023-12-02 20:50:40,801 INFO  L229       MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-02 20:50:40,807 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process
[2023-12-02 20:50:40,909 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2023-12-02 20:50:40,909 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2023-12-02 20:50:40,911 INFO  L262         TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 20 conjunts are in the unsatisfiable core
[2023-12-02 20:50:40,914 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-02 20:50:41,150 INFO  L134       CoverageAnalysis]: Checked inductivity of 647 backedges. 0 proven. 400 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked.
[2023-12-02 20:50:41,150 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-02 20:50:41,639 INFO  L134       CoverageAnalysis]: Checked inductivity of 647 backedges. 0 proven. 400 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked.
[2023-12-02 20:50:41,640 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1951258305] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-02 20:50:41,640 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-12-02 20:50:41,640 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 34
[2023-12-02 20:50:41,640 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013656103]
[2023-12-02 20:50:41,640 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-12-02 20:50:41,641 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 35 states
[2023-12-02 20:50:41,641 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-02 20:50:41,642 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants.
[2023-12-02 20:50:41,642 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=267, Invalid=923, Unknown=0, NotChecked=0, Total=1190
[2023-12-02 20:50:41,642 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-02 20:50:41,643 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2023-12-02 20:50:41,643 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 35 states, 35 states have (on average 3.3142857142857145) internal successors, (116), 34 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-02 20:50:41,644 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. 
[2023-12-02 20:50:41,644 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2023-12-02 20:50:41,644 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. 
[2023-12-02 20:50:41,644 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. 
[2023-12-02 20:50:41,644 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. 
[2023-12-02 20:50:41,644 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. 
[2023-12-02 20:50:41,644 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. 
[2023-12-02 20:50:41,644 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. 
[2023-12-02 20:50:41,644 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. 
[2023-12-02 20:50:41,644 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2023-12-02 20:50:43,444 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-02 20:50:43,444 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2023-12-02 20:50:43,444 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. 
[2023-12-02 20:50:43,444 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. 
[2023-12-02 20:50:43,444 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. 
[2023-12-02 20:50:43,444 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. 
[2023-12-02 20:50:43,444 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. 
[2023-12-02 20:50:43,444 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. 
[2023-12-02 20:50:43,444 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. 
[2023-12-02 20:50:43,444 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. 
[2023-12-02 20:50:43,449 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0
[2023-12-02 20:50:43,645 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9
[2023-12-02 20:50:43,645 INFO  L420      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] ===
[2023-12-02 20:50:43,646 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-02 20:50:43,646 INFO  L85        PathProgramCache]: Analyzing trace with hash -1737141215, now seen corresponding path program 3 times
[2023-12-02 20:50:43,646 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-02 20:50:43,646 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374111093]
[2023-12-02 20:50:43,646 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-02 20:50:43,646 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-02 20:50:43,664 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-02 20:50:44,531 INFO  L134       CoverageAnalysis]: Checked inductivity of 891 backedges. 0 proven. 856 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked.
[2023-12-02 20:50:44,531 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-02 20:50:44,531 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374111093]
[2023-12-02 20:50:44,532 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374111093] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-02 20:50:44,532 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [191903949]
[2023-12-02 20:50:44,532 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2023-12-02 20:50:44,532 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-02 20:50:44,532 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3
[2023-12-02 20:50:44,533 INFO  L229       MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-02 20:50:44,534 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process
[2023-12-02 20:50:44,644 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 21 check-sat command(s)
[2023-12-02 20:50:44,644 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2023-12-02 20:50:44,646 INFO  L262         TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 36 conjunts are in the unsatisfiable core
[2023-12-02 20:50:44,648 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-02 20:50:44,959 INFO  L134       CoverageAnalysis]: Checked inductivity of 891 backedges. 0 proven. 856 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked.
[2023-12-02 20:50:44,959 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-02 20:50:45,559 INFO  L134       CoverageAnalysis]: Checked inductivity of 891 backedges. 0 proven. 856 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked.
[2023-12-02 20:50:45,560 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [191903949] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-02 20:50:45,560 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-12-02 20:50:45,560 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 34, 34] total 46
[2023-12-02 20:50:45,560 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910896892]
[2023-12-02 20:50:45,560 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-12-02 20:50:45,561 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 47 states
[2023-12-02 20:50:45,561 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-02 20:50:45,562 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants.
[2023-12-02 20:50:45,563 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=485, Invalid=1677, Unknown=0, NotChecked=0, Total=2162
[2023-12-02 20:50:45,563 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-02 20:50:45,564 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2023-12-02 20:50:45,564 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 47 states, 47 states have (on average 3.297872340425532) internal successors, (155), 46 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-02 20:50:45,565 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. 
[2023-12-02 20:50:45,565 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2023-12-02 20:50:45,565 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. 
[2023-12-02 20:50:45,565 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. 
[2023-12-02 20:50:45,565 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. 
[2023-12-02 20:50:45,565 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. 
[2023-12-02 20:50:45,565 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. 
[2023-12-02 20:50:45,565 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. 
[2023-12-02 20:50:45,565 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. 
[2023-12-02 20:50:45,565 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. 
[2023-12-02 20:50:45,565 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2023-12-02 20:50:48,890 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-02 20:50:48,890 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2023-12-02 20:50:48,890 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. 
[2023-12-02 20:50:48,890 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. 
[2023-12-02 20:50:48,891 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. 
[2023-12-02 20:50:48,891 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. 
[2023-12-02 20:50:48,891 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. 
[2023-12-02 20:50:48,891 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. 
[2023-12-02 20:50:48,891 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. 
[2023-12-02 20:50:48,891 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. 
[2023-12-02 20:50:48,891 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. 
[2023-12-02 20:50:48,896 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0
[2023-12-02 20:50:49,092 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10
[2023-12-02 20:50:49,092 INFO  L420      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] ===
[2023-12-02 20:50:49,092 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-02 20:50:49,092 INFO  L85        PathProgramCache]: Analyzing trace with hash -1091120911, now seen corresponding path program 5 times
[2023-12-02 20:50:49,092 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-02 20:50:49,093 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088190131]
[2023-12-02 20:50:49,093 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-02 20:50:49,093 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-02 20:50:49,110 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-02 20:50:49,271 INFO  L134       CoverageAnalysis]: Checked inductivity of 553 backedges. 0 proven. 111 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked.
[2023-12-02 20:50:49,271 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-02 20:50:49,272 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088190131]
[2023-12-02 20:50:49,272 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088190131] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-02 20:50:49,272 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [965490675]
[2023-12-02 20:50:49,272 INFO  L93    rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
[2023-12-02 20:50:49,272 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-02 20:50:49,273 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3
[2023-12-02 20:50:49,275 INFO  L229       MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-02 20:50:49,278 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process
[2023-12-02 20:50:49,374 INFO  L228   tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 20 check-sat command(s)
[2023-12-02 20:50:49,374 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2023-12-02 20:50:49,376 INFO  L262         TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 11 conjunts are in the unsatisfiable core
[2023-12-02 20:50:49,378 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-02 20:50:49,491 INFO  L134       CoverageAnalysis]: Checked inductivity of 553 backedges. 0 proven. 111 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked.
[2023-12-02 20:50:49,491 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-02 20:50:49,657 INFO  L134       CoverageAnalysis]: Checked inductivity of 553 backedges. 0 proven. 111 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked.
[2023-12-02 20:50:49,658 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [965490675] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-02 20:50:49,658 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-12-02 20:50:49,658 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16
[2023-12-02 20:50:49,658 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883206587]
[2023-12-02 20:50:49,658 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-12-02 20:50:49,659 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 17 states
[2023-12-02 20:50:49,659 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-02 20:50:49,660 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants.
[2023-12-02 20:50:49,660 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=208, Unknown=0, NotChecked=0, Total=272
[2023-12-02 20:50:49,660 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-02 20:50:49,661 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2023-12-02 20:50:49,661 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 17 states, 17 states have (on average 3.2941176470588234) internal successors, (56), 16 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-02 20:50:49,661 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. 
[2023-12-02 20:50:49,661 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2023-12-02 20:50:49,661 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. 
[2023-12-02 20:50:49,662 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. 
[2023-12-02 20:50:49,662 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. 
[2023-12-02 20:50:49,662 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. 
[2023-12-02 20:50:49,662 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. 
[2023-12-02 20:50:49,662 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. 
[2023-12-02 20:50:49,662 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. 
[2023-12-02 20:50:49,662 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. 
[2023-12-02 20:50:49,662 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. 
[2023-12-02 20:50:49,662 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2023-12-02 20:50:51,000 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-02 20:50:51,000 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2023-12-02 20:50:51,000 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. 
[2023-12-02 20:50:51,000 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. 
[2023-12-02 20:50:51,000 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. 
[2023-12-02 20:50:51,000 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. 
[2023-12-02 20:50:51,000 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. 
[2023-12-02 20:50:51,000 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. 
[2023-12-02 20:50:51,000 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. 
[2023-12-02 20:50:51,001 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. 
[2023-12-02 20:50:51,001 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. 
[2023-12-02 20:50:51,001 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. 
[2023-12-02 20:50:51,006 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0
[2023-12-02 20:50:51,201 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11
[2023-12-02 20:50:51,201 INFO  L420      AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] ===
[2023-12-02 20:50:51,202 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-02 20:50:51,202 INFO  L85        PathProgramCache]: Analyzing trace with hash -999190877, now seen corresponding path program 4 times
[2023-12-02 20:50:51,202 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-02 20:50:51,202 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61886472]
[2023-12-02 20:50:51,202 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-02 20:50:51,202 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-02 20:50:51,217 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-02 20:50:51,416 INFO  L134       CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 282 refuted. 0 times theorem prover too weak. 348 trivial. 0 not checked.
[2023-12-02 20:50:51,417 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-02 20:50:51,417 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61886472]
[2023-12-02 20:50:51,417 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61886472] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-02 20:50:51,417 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [590368941]
[2023-12-02 20:50:51,417 INFO  L93    rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
[2023-12-02 20:50:51,417 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-02 20:50:51,417 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3
[2023-12-02 20:50:51,418 INFO  L229       MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-02 20:50:51,420 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process
[2023-12-02 20:50:51,492 INFO  L228   tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2023-12-02 20:50:51,492 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2023-12-02 20:50:51,493 INFO  L262         TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 16 conjunts are in the unsatisfiable core
[2023-12-02 20:50:51,496 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-02 20:50:51,613 INFO  L134       CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 282 refuted. 0 times theorem prover too weak. 348 trivial. 0 not checked.
[2023-12-02 20:50:51,613 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-02 20:50:51,868 INFO  L134       CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 282 refuted. 0 times theorem prover too weak. 348 trivial. 0 not checked.
[2023-12-02 20:50:51,868 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [590368941] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-02 20:50:51,869 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-12-02 20:50:51,869 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 26
[2023-12-02 20:50:51,869 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167567071]
[2023-12-02 20:50:51,869 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-12-02 20:50:51,870 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 27 states
[2023-12-02 20:50:51,870 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-02 20:50:51,870 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants.
[2023-12-02 20:50:51,871 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=571, Unknown=0, NotChecked=0, Total=702
[2023-12-02 20:50:51,871 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-02 20:50:51,871 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2023-12-02 20:50:51,872 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 27 states, 27 states have (on average 3.3703703703703702) internal successors, (91), 26 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-02 20:50:51,872 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. 
[2023-12-02 20:50:51,872 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2023-12-02 20:50:51,872 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. 
[2023-12-02 20:50:51,872 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. 
[2023-12-02 20:50:51,872 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. 
[2023-12-02 20:50:51,872 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. 
[2023-12-02 20:50:51,872 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. 
[2023-12-02 20:50:51,872 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. 
[2023-12-02 20:50:51,872 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. 
[2023-12-02 20:50:51,873 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. 
[2023-12-02 20:50:51,873 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. 
[2023-12-02 20:50:51,873 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. 
[2023-12-02 20:50:51,873 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2023-12-02 20:50:53,834 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-02 20:50:53,834 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2023-12-02 20:50:53,834 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. 
[2023-12-02 20:50:53,834 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. 
[2023-12-02 20:50:53,834 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. 
[2023-12-02 20:50:53,834 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. 
[2023-12-02 20:50:53,834 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. 
[2023-12-02 20:50:53,834 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. 
[2023-12-02 20:50:53,834 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. 
[2023-12-02 20:50:53,834 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. 
[2023-12-02 20:50:53,835 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. 
[2023-12-02 20:50:53,835 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. 
[2023-12-02 20:50:53,835 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. 
[2023-12-02 20:50:53,841 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0
[2023-12-02 20:50:54,035 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12
[2023-12-02 20:50:54,036 INFO  L420      AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] ===
[2023-12-02 20:50:54,036 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-02 20:50:54,036 INFO  L85        PathProgramCache]: Analyzing trace with hash 2008705501, now seen corresponding path program 6 times
[2023-12-02 20:50:54,036 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-02 20:50:54,036 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825452251]
[2023-12-02 20:50:54,036 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-02 20:50:54,037 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-02 20:50:54,050 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-02 20:50:54,292 INFO  L134       CoverageAnalysis]: Checked inductivity of 591 backedges. 0 proven. 331 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked.
[2023-12-02 20:50:54,292 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-02 20:50:54,293 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825452251]
[2023-12-02 20:50:54,293 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825452251] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-02 20:50:54,293 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [667359407]
[2023-12-02 20:50:54,293 INFO  L93    rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE
[2023-12-02 20:50:54,293 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-02 20:50:54,293 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3
[2023-12-02 20:50:54,294 INFO  L229       MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-02 20:50:54,296 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process
[2023-12-02 20:50:54,398 INFO  L228   tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 19 check-sat command(s)
[2023-12-02 20:50:54,399 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2023-12-02 20:50:54,400 INFO  L262         TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-02 20:50:54,402 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-02 20:50:54,497 INFO  L134       CoverageAnalysis]: Checked inductivity of 591 backedges. 0 proven. 331 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked.
[2023-12-02 20:50:54,497 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-02 20:50:54,757 INFO  L134       CoverageAnalysis]: Checked inductivity of 591 backedges. 0 proven. 331 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked.
[2023-12-02 20:50:54,757 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [667359407] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-02 20:50:54,757 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-12-02 20:50:54,757 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 33
[2023-12-02 20:50:54,757 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979444004]
[2023-12-02 20:50:54,757 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-12-02 20:50:54,758 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 34 states
[2023-12-02 20:50:54,758 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-02 20:50:54,759 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants.
[2023-12-02 20:50:54,759 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=256, Invalid=866, Unknown=0, NotChecked=0, Total=1122
[2023-12-02 20:50:54,759 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-02 20:50:54,760 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2023-12-02 20:50:54,760 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 34 states, 34 states have (on average 3.088235294117647) internal successors, (105), 33 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-02 20:50:54,760 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. 
[2023-12-02 20:50:54,760 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2023-12-02 20:50:54,761 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. 
[2023-12-02 20:50:54,761 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. 
[2023-12-02 20:50:54,761 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. 
[2023-12-02 20:50:54,761 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. 
[2023-12-02 20:50:54,761 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. 
[2023-12-02 20:50:54,761 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. 
[2023-12-02 20:50:54,761 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. 
[2023-12-02 20:50:54,761 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. 
[2023-12-02 20:50:54,761 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. 
[2023-12-02 20:50:54,761 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. 
[2023-12-02 20:50:54,761 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. 
[2023-12-02 20:50:54,761 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2023-12-02 20:50:57,996 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-02 20:50:57,997 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2023-12-02 20:50:57,997 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. 
[2023-12-02 20:50:57,997 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. 
[2023-12-02 20:50:57,997 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. 
[2023-12-02 20:50:57,997 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. 
[2023-12-02 20:50:57,997 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. 
[2023-12-02 20:50:57,997 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. 
[2023-12-02 20:50:57,997 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. 
[2023-12-02 20:50:57,997 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. 
[2023-12-02 20:50:57,997 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. 
[2023-12-02 20:50:57,997 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. 
[2023-12-02 20:50:57,997 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. 
[2023-12-02 20:50:57,998 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. 
[2023-12-02 20:50:58,002 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0
[2023-12-02 20:50:58,198 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13
[2023-12-02 20:50:58,198 INFO  L420      AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] ===
[2023-12-02 20:50:58,198 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-02 20:50:58,198 INFO  L85        PathProgramCache]: Analyzing trace with hash -993952093, now seen corresponding path program 5 times
[2023-12-02 20:50:58,199 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-02 20:50:58,199 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631687257]
[2023-12-02 20:50:58,199 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-02 20:50:58,199 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-02 20:50:58,222 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-02 20:50:58,819 INFO  L134       CoverageAnalysis]: Checked inductivity of 850 backedges. 0 proven. 770 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked.
[2023-12-02 20:50:58,820 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-02 20:50:58,820 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631687257]
[2023-12-02 20:50:58,820 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631687257] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-02 20:50:58,820 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1310785937]
[2023-12-02 20:50:58,820 INFO  L93    rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
[2023-12-02 20:50:58,820 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-02 20:50:58,820 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3
[2023-12-02 20:50:58,821 INFO  L229       MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-02 20:50:58,822 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process
[2023-12-02 20:50:58,900 INFO  L228   tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 21 check-sat command(s)
[2023-12-02 20:50:58,901 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2023-12-02 20:50:58,902 INFO  L262         TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 32 conjunts are in the unsatisfiable core
[2023-12-02 20:50:58,904 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-02 20:50:59,107 INFO  L134       CoverageAnalysis]: Checked inductivity of 850 backedges. 0 proven. 770 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked.
[2023-12-02 20:50:59,107 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-02 20:50:59,723 INFO  L134       CoverageAnalysis]: Checked inductivity of 850 backedges. 0 proven. 770 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked.
[2023-12-02 20:50:59,724 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1310785937] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-02 20:50:59,724 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-12-02 20:50:59,724 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 30, 30] total 50
[2023-12-02 20:50:59,724 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842549724]
[2023-12-02 20:50:59,724 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-12-02 20:50:59,725 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 51 states
[2023-12-02 20:50:59,725 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-02 20:50:59,726 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants.
[2023-12-02 20:50:59,727 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=475, Invalid=2075, Unknown=0, NotChecked=0, Total=2550
[2023-12-02 20:50:59,727 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-02 20:50:59,728 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2023-12-02 20:50:59,728 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 51 states, 51 states have (on average 3.2549019607843137) internal successors, (166), 50 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-02 20:50:59,728 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. 
[2023-12-02 20:50:59,728 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2023-12-02 20:50:59,728 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. 
[2023-12-02 20:50:59,728 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. 
[2023-12-02 20:50:59,728 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. 
[2023-12-02 20:50:59,728 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. 
[2023-12-02 20:50:59,729 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. 
[2023-12-02 20:50:59,729 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. 
[2023-12-02 20:50:59,729 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. 
[2023-12-02 20:50:59,729 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. 
[2023-12-02 20:50:59,729 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. 
[2023-12-02 20:50:59,729 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. 
[2023-12-02 20:50:59,729 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. 
[2023-12-02 20:50:59,729 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. 
[2023-12-02 20:50:59,729 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2023-12-02 20:51:03,823 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-02 20:51:03,823 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2023-12-02 20:51:03,823 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. 
[2023-12-02 20:51:03,823 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. 
[2023-12-02 20:51:03,823 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. 
[2023-12-02 20:51:03,823 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. 
[2023-12-02 20:51:03,823 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. 
[2023-12-02 20:51:03,824 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. 
[2023-12-02 20:51:03,824 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. 
[2023-12-02 20:51:03,824 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. 
[2023-12-02 20:51:03,824 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. 
[2023-12-02 20:51:03,824 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. 
[2023-12-02 20:51:03,824 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. 
[2023-12-02 20:51:03,824 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. 
[2023-12-02 20:51:03,824 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. 
[2023-12-02 20:51:03,829 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0
[2023-12-02 20:51:04,025 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14
[2023-12-02 20:51:04,025 INFO  L420      AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] ===
[2023-12-02 20:51:04,025 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-02 20:51:04,026 INFO  L85        PathProgramCache]: Analyzing trace with hash 47658107, now seen corresponding path program 6 times
[2023-12-02 20:51:04,026 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-02 20:51:04,026 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961351497]
[2023-12-02 20:51:04,026 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-02 20:51:04,026 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-02 20:51:04,040 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-02 20:51:04,519 INFO  L134       CoverageAnalysis]: Checked inductivity of 850 backedges. 0 proven. 770 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked.
[2023-12-02 20:51:04,519 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-02 20:51:04,520 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961351497]
[2023-12-02 20:51:04,520 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961351497] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-02 20:51:04,520 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [954999540]
[2023-12-02 20:51:04,520 INFO  L93    rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE
[2023-12-02 20:51:04,520 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-02 20:51:04,520 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3
[2023-12-02 20:51:04,521 INFO  L229       MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-02 20:51:04,522 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process
[2023-12-02 20:51:04,633 INFO  L228   tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 21 check-sat command(s)
[2023-12-02 20:51:04,634 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2023-12-02 20:51:04,635 INFO  L262         TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 32 conjunts are in the unsatisfiable core
[2023-12-02 20:51:04,638 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-02 20:51:04,782 INFO  L134       CoverageAnalysis]: Checked inductivity of 850 backedges. 0 proven. 770 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked.
[2023-12-02 20:51:04,782 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-02 20:51:05,463 INFO  L134       CoverageAnalysis]: Checked inductivity of 850 backedges. 0 proven. 770 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked.
[2023-12-02 20:51:05,463 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [954999540] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-02 20:51:05,463 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-12-02 20:51:05,463 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 30, 30] total 58
[2023-12-02 20:51:05,463 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923547410]
[2023-12-02 20:51:05,464 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-12-02 20:51:05,464 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 59 states
[2023-12-02 20:51:05,464 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-02 20:51:05,465 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants.
[2023-12-02 20:51:05,466 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=543, Invalid=2879, Unknown=0, NotChecked=0, Total=3422
[2023-12-02 20:51:05,466 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-02 20:51:05,467 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2023-12-02 20:51:05,467 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 59 states, 59 states have (on average 3.169491525423729) internal successors, (187), 58 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-02 20:51:05,467 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. 
[2023-12-02 20:51:05,467 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2023-12-02 20:51:05,468 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. 
[2023-12-02 20:51:05,468 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. 
[2023-12-02 20:51:05,468 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. 
[2023-12-02 20:51:05,468 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. 
[2023-12-02 20:51:05,468 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. 
[2023-12-02 20:51:05,468 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. 
[2023-12-02 20:51:05,468 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. 
[2023-12-02 20:51:05,468 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. 
[2023-12-02 20:51:05,468 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. 
[2023-12-02 20:51:05,468 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. 
[2023-12-02 20:51:05,468 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. 
[2023-12-02 20:51:05,468 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. 
[2023-12-02 20:51:05,469 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 97 states. 
[2023-12-02 20:51:05,469 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2023-12-02 20:51:10,724 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-02 20:51:10,724 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2023-12-02 20:51:10,724 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. 
[2023-12-02 20:51:10,724 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. 
[2023-12-02 20:51:10,724 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. 
[2023-12-02 20:51:10,724 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. 
[2023-12-02 20:51:10,725 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. 
[2023-12-02 20:51:10,725 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. 
[2023-12-02 20:51:10,725 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. 
[2023-12-02 20:51:10,725 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. 
[2023-12-02 20:51:10,725 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. 
[2023-12-02 20:51:10,725 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. 
[2023-12-02 20:51:10,725 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. 
[2023-12-02 20:51:10,725 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. 
[2023-12-02 20:51:10,725 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. 
[2023-12-02 20:51:10,726 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. 
[2023-12-02 20:51:10,730 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0
[2023-12-02 20:51:10,926 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15
[2023-12-02 20:51:10,926 INFO  L420      AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] ===
[2023-12-02 20:51:10,927 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-02 20:51:10,927 INFO  L85        PathProgramCache]: Analyzing trace with hash -1711493195, now seen corresponding path program 7 times
[2023-12-02 20:51:10,927 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-02 20:51:10,927 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644837204]
[2023-12-02 20:51:10,927 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-02 20:51:10,927 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-02 20:51:10,941 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-02 20:51:11,487 INFO  L134       CoverageAnalysis]: Checked inductivity of 811 backedges. 0 proven. 771 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked.
[2023-12-02 20:51:11,488 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-02 20:51:11,488 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644837204]
[2023-12-02 20:51:11,488 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644837204] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-02 20:51:11,488 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [626370984]
[2023-12-02 20:51:11,488 INFO  L93    rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY
[2023-12-02 20:51:11,488 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-02 20:51:11,489 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3
[2023-12-02 20:51:11,489 INFO  L229       MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-02 20:51:11,491 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process
[2023-12-02 20:51:11,572 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-02 20:51:11,574 INFO  L262         TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 35 conjunts are in the unsatisfiable core
[2023-12-02 20:51:11,576 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-02 20:51:11,707 INFO  L134       CoverageAnalysis]: Checked inductivity of 811 backedges. 0 proven. 771 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked.
[2023-12-02 20:51:11,707 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-02 20:51:12,318 INFO  L134       CoverageAnalysis]: Checked inductivity of 811 backedges. 0 proven. 771 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked.
[2023-12-02 20:51:12,318 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [626370984] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-02 20:51:12,318 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-12-02 20:51:12,318 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 65
[2023-12-02 20:51:12,319 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732840483]
[2023-12-02 20:51:12,319 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-12-02 20:51:12,319 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 66 states
[2023-12-02 20:51:12,319 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-02 20:51:12,321 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants.
[2023-12-02 20:51:12,322 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=972, Invalid=3318, Unknown=0, NotChecked=0, Total=4290
[2023-12-02 20:51:12,322 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-02 20:51:12,323 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2023-12-02 20:51:12,323 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 66 states, 66 states have (on average 3.0454545454545454) internal successors, (201), 65 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-02 20:51:12,324 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. 
[2023-12-02 20:51:12,324 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2023-12-02 20:51:12,324 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. 
[2023-12-02 20:51:12,324 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. 
[2023-12-02 20:51:12,324 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. 
[2023-12-02 20:51:12,324 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. 
[2023-12-02 20:51:12,324 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. 
[2023-12-02 20:51:12,324 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. 
[2023-12-02 20:51:12,324 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. 
[2023-12-02 20:51:12,324 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. 
[2023-12-02 20:51:12,324 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. 
[2023-12-02 20:51:12,324 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. 
[2023-12-02 20:51:12,324 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. 
[2023-12-02 20:51:12,324 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 81 states. 
[2023-12-02 20:51:12,324 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 97 states. 
[2023-12-02 20:51:12,324 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 113 states. 
[2023-12-02 20:51:12,325 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2023-12-02 20:51:18,754 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-02 20:51:18,754 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2023-12-02 20:51:18,754 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. 
[2023-12-02 20:51:18,755 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. 
[2023-12-02 20:51:18,755 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. 
[2023-12-02 20:51:18,755 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. 
[2023-12-02 20:51:18,755 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. 
[2023-12-02 20:51:18,755 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. 
[2023-12-02 20:51:18,755 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. 
[2023-12-02 20:51:18,755 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. 
[2023-12-02 20:51:18,755 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. 
[2023-12-02 20:51:18,755 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. 
[2023-12-02 20:51:18,755 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. 
[2023-12-02 20:51:18,755 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. 
[2023-12-02 20:51:18,755 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. 
[2023-12-02 20:51:18,755 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. 
[2023-12-02 20:51:18,756 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. 
[2023-12-02 20:51:18,761 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0
[2023-12-02 20:51:18,956 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16
[2023-12-02 20:51:18,956 INFO  L420      AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] ===
[2023-12-02 20:51:18,956 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-02 20:51:18,957 INFO  L85        PathProgramCache]: Analyzing trace with hash -840408187, now seen corresponding path program 7 times
[2023-12-02 20:51:18,957 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-02 20:51:18,957 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832076438]
[2023-12-02 20:51:18,957 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-02 20:51:18,957 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-02 20:51:18,974 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-02 20:51:19,841 INFO  L134       CoverageAnalysis]: Checked inductivity of 1141 backedges. 0 proven. 1141 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-02 20:51:19,841 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-02 20:51:19,842 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832076438]
[2023-12-02 20:51:19,842 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832076438] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-02 20:51:19,842 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1518233356]
[2023-12-02 20:51:19,842 INFO  L93    rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY
[2023-12-02 20:51:19,842 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-02 20:51:19,842 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3
[2023-12-02 20:51:19,843 INFO  L229       MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-02 20:51:19,844 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process
[2023-12-02 20:51:19,937 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-02 20:51:19,940 INFO  L262         TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 46 conjunts are in the unsatisfiable core
[2023-12-02 20:51:19,942 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-02 20:51:20,112 INFO  L134       CoverageAnalysis]: Checked inductivity of 1141 backedges. 0 proven. 1141 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-02 20:51:20,112 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-02 20:51:20,572 INFO  L134       CoverageAnalysis]: Checked inductivity of 1141 backedges. 0 proven. 1141 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-02 20:51:20,573 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1518233356] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-02 20:51:20,573 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-12-02 20:51:20,573 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 44, 44] total 44
[2023-12-02 20:51:20,573 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273920122]
[2023-12-02 20:51:20,573 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-12-02 20:51:20,574 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 45 states
[2023-12-02 20:51:20,574 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-02 20:51:20,575 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants.
[2023-12-02 20:51:20,576 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=328, Invalid=1652, Unknown=0, NotChecked=0, Total=1980
[2023-12-02 20:51:20,576 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-02 20:51:20,577 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2023-12-02 20:51:20,577 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 45 states, 45 states have (on average 2.977777777777778) internal successors, (134), 44 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-02 20:51:20,577 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. 
[2023-12-02 20:51:20,577 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2023-12-02 20:51:20,577 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. 
[2023-12-02 20:51:20,577 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. 
[2023-12-02 20:51:20,577 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. 
[2023-12-02 20:51:20,577 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. 
[2023-12-02 20:51:20,577 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. 
[2023-12-02 20:51:20,578 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. 
[2023-12-02 20:51:20,578 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. 
[2023-12-02 20:51:20,578 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. 
[2023-12-02 20:51:20,578 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. 
[2023-12-02 20:51:20,578 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. 
[2023-12-02 20:51:20,578 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. 
[2023-12-02 20:51:20,578 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 81 states. 
[2023-12-02 20:51:20,578 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 97 states. 
[2023-12-02 20:51:20,578 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 113 states. 
[2023-12-02 20:51:20,578 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 118 states. 
[2023-12-02 20:51:20,578 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2023-12-02 20:51:26,633 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-02 20:51:26,634 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2023-12-02 20:51:26,634 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. 
[2023-12-02 20:51:26,634 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. 
[2023-12-02 20:51:26,634 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. 
[2023-12-02 20:51:26,634 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. 
[2023-12-02 20:51:26,634 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. 
[2023-12-02 20:51:26,634 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. 
[2023-12-02 20:51:26,634 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. 
[2023-12-02 20:51:26,634 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. 
[2023-12-02 20:51:26,634 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. 
[2023-12-02 20:51:26,634 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. 
[2023-12-02 20:51:26,635 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. 
[2023-12-02 20:51:26,635 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. 
[2023-12-02 20:51:26,635 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. 
[2023-12-02 20:51:26,635 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. 
[2023-12-02 20:51:26,635 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. 
[2023-12-02 20:51:26,635 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 115 states. 
[2023-12-02 20:51:26,640 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0
[2023-12-02 20:51:26,836 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17
[2023-12-02 20:51:26,836 INFO  L420      AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] ===
[2023-12-02 20:51:26,836 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-02 20:51:26,836 INFO  L85        PathProgramCache]: Analyzing trace with hash 1471180815, now seen corresponding path program 8 times
[2023-12-02 20:51:26,836 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-02 20:51:26,837 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339747441]
[2023-12-02 20:51:26,837 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-02 20:51:26,837 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-02 20:51:26,855 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-02 20:51:27,708 INFO  L134       CoverageAnalysis]: Checked inductivity of 1141 backedges. 0 proven. 1141 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-02 20:51:27,708 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-02 20:51:27,708 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339747441]
[2023-12-02 20:51:27,708 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339747441] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-02 20:51:27,708 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [793231393]
[2023-12-02 20:51:27,708 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2023-12-02 20:51:27,709 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-02 20:51:27,709 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3
[2023-12-02 20:51:27,710 INFO  L229       MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-02 20:51:27,710 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process
[2023-12-02 20:51:27,800 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2023-12-02 20:51:27,800 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2023-12-02 20:51:27,803 INFO  L262         TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 46 conjunts are in the unsatisfiable core
[2023-12-02 20:51:27,806 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-02 20:51:27,968 INFO  L134       CoverageAnalysis]: Checked inductivity of 1141 backedges. 0 proven. 1141 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-02 20:51:27,968 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-02 20:51:28,398 INFO  L134       CoverageAnalysis]: Checked inductivity of 1141 backedges. 0 proven. 1141 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-02 20:51:28,398 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [793231393] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-02 20:51:28,398 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-12-02 20:51:28,399 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 44, 44] total 44
[2023-12-02 20:51:28,399 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359681651]
[2023-12-02 20:51:28,399 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-12-02 20:51:28,400 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 45 states
[2023-12-02 20:51:28,400 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-02 20:51:28,400 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants.
[2023-12-02 20:51:28,401 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=348, Invalid=1632, Unknown=0, NotChecked=0, Total=1980
[2023-12-02 20:51:28,401 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-02 20:51:28,402 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2023-12-02 20:51:28,402 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 45 states, 45 states have (on average 2.977777777777778) internal successors, (134), 44 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-02 20:51:28,403 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. 
[2023-12-02 20:51:28,403 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2023-12-02 20:51:28,403 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. 
[2023-12-02 20:51:28,403 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. 
[2023-12-02 20:51:28,403 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. 
[2023-12-02 20:51:28,403 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. 
[2023-12-02 20:51:28,403 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. 
[2023-12-02 20:51:28,403 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. 
[2023-12-02 20:51:28,403 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. 
[2023-12-02 20:51:28,403 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. 
[2023-12-02 20:51:28,403 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. 
[2023-12-02 20:51:28,403 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. 
[2023-12-02 20:51:28,403 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. 
[2023-12-02 20:51:28,404 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 81 states. 
[2023-12-02 20:51:28,404 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 97 states. 
[2023-12-02 20:51:28,404 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 113 states. 
[2023-12-02 20:51:28,404 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 118 states. 
[2023-12-02 20:51:28,404 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 115 states. 
[2023-12-02 20:51:28,404 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2023-12-02 20:51:34,804 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-02 20:51:34,804 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2023-12-02 20:51:34,804 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. 
[2023-12-02 20:51:34,804 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. 
[2023-12-02 20:51:34,804 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. 
[2023-12-02 20:51:34,804 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. 
[2023-12-02 20:51:34,804 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. 
[2023-12-02 20:51:34,804 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. 
[2023-12-02 20:51:34,804 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. 
[2023-12-02 20:51:34,804 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. 
[2023-12-02 20:51:34,804 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. 
[2023-12-02 20:51:34,804 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. 
[2023-12-02 20:51:34,805 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. 
[2023-12-02 20:51:34,805 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. 
[2023-12-02 20:51:34,805 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. 
[2023-12-02 20:51:34,805 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. 
[2023-12-02 20:51:34,805 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. 
[2023-12-02 20:51:34,805 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 115 states. 
[2023-12-02 20:51:34,805 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. 
[2023-12-02 20:51:34,809 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0
[2023-12-02 20:51:35,005 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-02 20:51:35,006 INFO  L420      AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] ===
[2023-12-02 20:51:35,006 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-02 20:51:35,006 INFO  L85        PathProgramCache]: Analyzing trace with hash -1451807719, now seen corresponding path program 9 times
[2023-12-02 20:51:35,006 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-02 20:51:35,006 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147927341]
[2023-12-02 20:51:35,006 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-02 20:51:35,007 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-02 20:51:35,024 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-02 20:51:35,899 INFO  L134       CoverageAnalysis]: Checked inductivity of 1141 backedges. 0 proven. 1141 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-02 20:51:35,899 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-02 20:51:35,899 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147927341]
[2023-12-02 20:51:35,899 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147927341] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-02 20:51:35,899 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [600683886]
[2023-12-02 20:51:35,899 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2023-12-02 20:51:35,900 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-02 20:51:35,900 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3
[2023-12-02 20:51:35,900 INFO  L229       MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-02 20:51:35,901 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process
[2023-12-02 20:51:36,040 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 21 check-sat command(s)
[2023-12-02 20:51:36,040 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2023-12-02 20:51:36,042 INFO  L262         TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 46 conjunts are in the unsatisfiable core
[2023-12-02 20:51:36,045 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-02 20:51:36,207 INFO  L134       CoverageAnalysis]: Checked inductivity of 1141 backedges. 0 proven. 1141 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-02 20:51:36,208 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-02 20:51:36,693 INFO  L134       CoverageAnalysis]: Checked inductivity of 1141 backedges. 0 proven. 1141 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-02 20:51:36,694 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [600683886] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-02 20:51:36,694 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-12-02 20:51:36,694 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 44, 44] total 44
[2023-12-02 20:51:36,694 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72387304]
[2023-12-02 20:51:36,694 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-12-02 20:51:36,695 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 45 states
[2023-12-02 20:51:36,695 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-02 20:51:36,696 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants.
[2023-12-02 20:51:36,696 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=372, Invalid=1608, Unknown=0, NotChecked=0, Total=1980
[2023-12-02 20:51:36,696 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-02 20:51:36,697 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2023-12-02 20:51:36,697 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 45 states, 45 states have (on average 2.977777777777778) internal successors, (134), 44 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-02 20:51:36,697 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. 
[2023-12-02 20:51:36,697 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2023-12-02 20:51:36,697 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. 
[2023-12-02 20:51:36,697 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. 
[2023-12-02 20:51:36,698 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. 
[2023-12-02 20:51:36,698 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. 
[2023-12-02 20:51:36,698 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. 
[2023-12-02 20:51:36,698 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. 
[2023-12-02 20:51:36,698 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. 
[2023-12-02 20:51:36,698 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. 
[2023-12-02 20:51:36,698 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. 
[2023-12-02 20:51:36,698 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. 
[2023-12-02 20:51:36,698 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. 
[2023-12-02 20:51:36,698 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 81 states. 
[2023-12-02 20:51:36,698 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 97 states. 
[2023-12-02 20:51:36,698 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 113 states. 
[2023-12-02 20:51:36,699 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 118 states. 
[2023-12-02 20:51:36,699 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 115 states. 
[2023-12-02 20:51:36,699 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 117 states. 
[2023-12-02 20:51:36,699 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2023-12-02 20:51:43,147 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-02 20:51:43,147 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2023-12-02 20:51:43,147 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. 
[2023-12-02 20:51:43,147 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. 
[2023-12-02 20:51:43,147 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. 
[2023-12-02 20:51:43,147 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. 
[2023-12-02 20:51:43,147 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. 
[2023-12-02 20:51:43,148 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. 
[2023-12-02 20:51:43,148 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. 
[2023-12-02 20:51:43,148 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. 
[2023-12-02 20:51:43,148 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. 
[2023-12-02 20:51:43,148 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. 
[2023-12-02 20:51:43,148 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. 
[2023-12-02 20:51:43,148 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. 
[2023-12-02 20:51:43,148 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. 
[2023-12-02 20:51:43,148 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. 
[2023-12-02 20:51:43,148 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. 
[2023-12-02 20:51:43,148 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 115 states. 
[2023-12-02 20:51:43,149 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. 
[2023-12-02 20:51:43,149 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. 
[2023-12-02 20:51:43,154 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0
[2023-12-02 20:51:43,349 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-02 20:51:43,350 INFO  L420      AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] ===
[2023-12-02 20:51:43,350 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-02 20:51:43,350 INFO  L85        PathProgramCache]: Analyzing trace with hash -1781123165, now seen corresponding path program 10 times
[2023-12-02 20:51:43,350 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-02 20:51:43,350 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570286347]
[2023-12-02 20:51:43,350 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-02 20:51:43,350 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-02 20:51:43,372 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-02 20:51:44,157 INFO  L134       CoverageAnalysis]: Checked inductivity of 1141 backedges. 0 proven. 1141 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-02 20:51:44,158 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-02 20:51:44,158 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570286347]
[2023-12-02 20:51:44,158 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570286347] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-02 20:51:44,158 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [144699552]
[2023-12-02 20:51:44,158 INFO  L93    rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
[2023-12-02 20:51:44,158 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-02 20:51:44,158 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3
[2023-12-02 20:51:44,159 INFO  L229       MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-02 20:51:44,160 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process
[2023-12-02 20:51:44,246 INFO  L228   tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2023-12-02 20:51:44,247 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2023-12-02 20:51:44,249 INFO  L262         TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 46 conjunts are in the unsatisfiable core
[2023-12-02 20:51:44,252 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-02 20:51:44,402 INFO  L134       CoverageAnalysis]: Checked inductivity of 1141 backedges. 0 proven. 1141 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-02 20:51:44,402 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-02 20:51:44,921 INFO  L134       CoverageAnalysis]: Checked inductivity of 1141 backedges. 0 proven. 1141 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-02 20:51:44,921 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [144699552] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-02 20:51:44,921 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-12-02 20:51:44,922 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 44, 44] total 44
[2023-12-02 20:51:44,922 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362152803]
[2023-12-02 20:51:44,922 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-12-02 20:51:44,922 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 45 states
[2023-12-02 20:51:44,923 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-02 20:51:44,923 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants.
[2023-12-02 20:51:44,924 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=400, Invalid=1580, Unknown=0, NotChecked=0, Total=1980
[2023-12-02 20:51:44,924 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-02 20:51:44,925 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2023-12-02 20:51:44,925 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 45 states, 45 states have (on average 2.977777777777778) internal successors, (134), 44 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-02 20:51:44,925 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. 
[2023-12-02 20:51:44,925 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2023-12-02 20:51:44,926 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. 
[2023-12-02 20:51:44,926 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. 
[2023-12-02 20:51:44,926 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. 
[2023-12-02 20:51:44,926 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. 
[2023-12-02 20:51:44,926 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. 
[2023-12-02 20:51:44,926 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. 
[2023-12-02 20:51:44,926 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. 
[2023-12-02 20:51:44,926 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. 
[2023-12-02 20:51:44,926 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. 
[2023-12-02 20:51:44,926 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. 
[2023-12-02 20:51:44,927 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. 
[2023-12-02 20:51:44,927 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 81 states. 
[2023-12-02 20:51:44,927 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 97 states. 
[2023-12-02 20:51:44,927 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 113 states. 
[2023-12-02 20:51:44,927 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 118 states. 
[2023-12-02 20:51:44,927 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 115 states. 
[2023-12-02 20:51:44,927 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 117 states. 
[2023-12-02 20:51:44,927 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 119 states. 
[2023-12-02 20:51:44,927 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2023-12-02 20:51:51,373 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-02 20:51:51,373 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2023-12-02 20:51:51,373 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. 
[2023-12-02 20:51:51,373 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. 
[2023-12-02 20:51:51,373 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. 
[2023-12-02 20:51:51,373 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. 
[2023-12-02 20:51:51,373 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. 
[2023-12-02 20:51:51,373 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. 
[2023-12-02 20:51:51,373 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. 
[2023-12-02 20:51:51,373 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. 
[2023-12-02 20:51:51,373 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. 
[2023-12-02 20:51:51,374 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. 
[2023-12-02 20:51:51,374 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. 
[2023-12-02 20:51:51,374 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. 
[2023-12-02 20:51:51,374 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. 
[2023-12-02 20:51:51,374 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. 
[2023-12-02 20:51:51,374 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. 
[2023-12-02 20:51:51,374 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 115 states. 
[2023-12-02 20:51:51,374 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. 
[2023-12-02 20:51:51,374 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. 
[2023-12-02 20:51:51,374 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. 
[2023-12-02 20:51:51,379 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0
[2023-12-02 20:51:51,575 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20
[2023-12-02 20:51:51,575 INFO  L420      AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] ===
[2023-12-02 20:51:51,575 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-02 20:51:51,575 INFO  L85        PathProgramCache]: Analyzing trace with hash -887147859, now seen corresponding path program 11 times
[2023-12-02 20:51:51,575 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-02 20:51:51,576 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390744062]
[2023-12-02 20:51:51,576 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-02 20:51:51,576 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-02 20:51:51,596 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-02 20:51:52,448 INFO  L134       CoverageAnalysis]: Checked inductivity of 1141 backedges. 0 proven. 1141 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-02 20:51:52,448 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-02 20:51:52,448 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390744062]
[2023-12-02 20:51:52,448 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390744062] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-02 20:51:52,448 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [635486282]
[2023-12-02 20:51:52,448 INFO  L93    rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
[2023-12-02 20:51:52,449 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-02 20:51:52,449 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3
[2023-12-02 20:51:52,449 INFO  L229       MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-02 20:51:52,450 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process
[2023-12-02 20:51:52,548 INFO  L228   tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 21 check-sat command(s)
[2023-12-02 20:51:52,548 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2023-12-02 20:51:52,550 INFO  L262         TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 46 conjunts are in the unsatisfiable core
[2023-12-02 20:51:52,553 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-02 20:51:52,690 INFO  L134       CoverageAnalysis]: Checked inductivity of 1141 backedges. 0 proven. 1141 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-02 20:51:52,690 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-02 20:51:53,185 INFO  L134       CoverageAnalysis]: Checked inductivity of 1141 backedges. 0 proven. 1141 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-02 20:51:53,185 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [635486282] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-02 20:51:53,185 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-12-02 20:51:53,185 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 44, 44] total 44
[2023-12-02 20:51:53,185 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66129004]
[2023-12-02 20:51:53,185 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-12-02 20:51:53,186 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 45 states
[2023-12-02 20:51:53,186 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-02 20:51:53,187 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants.
[2023-12-02 20:51:53,188 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=432, Invalid=1548, Unknown=0, NotChecked=0, Total=1980
[2023-12-02 20:51:53,188 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-02 20:51:53,189 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2023-12-02 20:51:53,189 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 45 states, 45 states have (on average 2.977777777777778) internal successors, (134), 44 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-02 20:51:53,189 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. 
[2023-12-02 20:51:53,189 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2023-12-02 20:51:53,189 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. 
[2023-12-02 20:51:53,189 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. 
[2023-12-02 20:51:53,189 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. 
[2023-12-02 20:51:53,190 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. 
[2023-12-02 20:51:53,190 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. 
[2023-12-02 20:51:53,190 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. 
[2023-12-02 20:51:53,190 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. 
[2023-12-02 20:51:53,190 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. 
[2023-12-02 20:51:53,190 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. 
[2023-12-02 20:51:53,190 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. 
[2023-12-02 20:51:53,190 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. 
[2023-12-02 20:51:53,190 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 81 states. 
[2023-12-02 20:51:53,190 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 97 states. 
[2023-12-02 20:51:53,191 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 113 states. 
[2023-12-02 20:51:53,191 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 118 states. 
[2023-12-02 20:51:53,191 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 115 states. 
[2023-12-02 20:51:53,191 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 117 states. 
[2023-12-02 20:51:53,191 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 119 states. 
[2023-12-02 20:51:53,191 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 121 states. 
[2023-12-02 20:51:53,191 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2023-12-02 20:52:00,172 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-02 20:52:00,172 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2023-12-02 20:52:00,173 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. 
[2023-12-02 20:52:00,173 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. 
[2023-12-02 20:52:00,173 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. 
[2023-12-02 20:52:00,173 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. 
[2023-12-02 20:52:00,173 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. 
[2023-12-02 20:52:00,173 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. 
[2023-12-02 20:52:00,173 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. 
[2023-12-02 20:52:00,173 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. 
[2023-12-02 20:52:00,173 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. 
[2023-12-02 20:52:00,173 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. 
[2023-12-02 20:52:00,173 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. 
[2023-12-02 20:52:00,174 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. 
[2023-12-02 20:52:00,174 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. 
[2023-12-02 20:52:00,174 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. 
[2023-12-02 20:52:00,174 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. 
[2023-12-02 20:52:00,174 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 115 states. 
[2023-12-02 20:52:00,174 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. 
[2023-12-02 20:52:00,174 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. 
[2023-12-02 20:52:00,174 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. 
[2023-12-02 20:52:00,174 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states. 
[2023-12-02 20:52:00,179 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0
[2023-12-02 20:52:00,375 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21
[2023-12-02 20:52:00,375 INFO  L420      AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] ===
[2023-12-02 20:52:00,375 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-02 20:52:00,375 INFO  L85        PathProgramCache]: Analyzing trace with hash -44319433, now seen corresponding path program 12 times
[2023-12-02 20:52:00,375 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-02 20:52:00,375 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774302590]
[2023-12-02 20:52:00,376 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-02 20:52:00,376 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-02 20:52:00,394 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-02 20:52:01,201 INFO  L134       CoverageAnalysis]: Checked inductivity of 1141 backedges. 0 proven. 1141 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-02 20:52:01,201 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-02 20:52:01,202 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774302590]
[2023-12-02 20:52:01,202 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774302590] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-02 20:52:01,202 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1905663661]
[2023-12-02 20:52:01,202 INFO  L93    rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE
[2023-12-02 20:52:01,202 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-02 20:52:01,202 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3
[2023-12-02 20:52:01,203 INFO  L229       MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-02 20:52:01,204 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process
[2023-12-02 20:52:01,310 INFO  L228   tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 21 check-sat command(s)
[2023-12-02 20:52:01,310 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2023-12-02 20:52:01,312 INFO  L262         TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 46 conjunts are in the unsatisfiable core
[2023-12-02 20:52:01,315 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-02 20:52:01,434 INFO  L134       CoverageAnalysis]: Checked inductivity of 1141 backedges. 0 proven. 1141 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-02 20:52:01,434 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-02 20:52:01,958 INFO  L134       CoverageAnalysis]: Checked inductivity of 1141 backedges. 0 proven. 1141 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-02 20:52:01,958 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1905663661] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-02 20:52:01,958 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-12-02 20:52:01,959 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 44, 44] total 44
[2023-12-02 20:52:01,959 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806043149]
[2023-12-02 20:52:01,959 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-12-02 20:52:01,959 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 45 states
[2023-12-02 20:52:01,960 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-02 20:52:01,960 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants.
[2023-12-02 20:52:01,961 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=468, Invalid=1512, Unknown=0, NotChecked=0, Total=1980
[2023-12-02 20:52:01,961 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-02 20:52:01,961 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2023-12-02 20:52:01,962 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 45 states, 45 states have (on average 2.977777777777778) internal successors, (134), 44 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-02 20:52:01,962 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. 
[2023-12-02 20:52:01,962 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2023-12-02 20:52:01,962 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. 
[2023-12-02 20:52:01,962 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. 
[2023-12-02 20:52:01,962 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. 
[2023-12-02 20:52:01,962 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. 
[2023-12-02 20:52:01,962 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. 
[2023-12-02 20:52:01,962 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. 
[2023-12-02 20:52:01,962 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. 
[2023-12-02 20:52:01,963 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. 
[2023-12-02 20:52:01,963 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. 
[2023-12-02 20:52:01,963 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. 
[2023-12-02 20:52:01,963 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. 
[2023-12-02 20:52:01,963 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 81 states. 
[2023-12-02 20:52:01,963 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 97 states. 
[2023-12-02 20:52:01,963 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 113 states. 
[2023-12-02 20:52:01,963 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 120 states. 
[2023-12-02 20:52:01,963 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 115 states. 
[2023-12-02 20:52:01,963 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 117 states. 
[2023-12-02 20:52:01,963 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 119 states. 
[2023-12-02 20:52:01,964 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 121 states. 
[2023-12-02 20:52:01,964 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 123 states. 
[2023-12-02 20:52:01,964 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2023-12-02 20:52:09,502 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-02 20:52:09,502 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2023-12-02 20:52:09,502 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. 
[2023-12-02 20:52:09,503 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. 
[2023-12-02 20:52:09,503 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. 
[2023-12-02 20:52:09,503 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. 
[2023-12-02 20:52:09,503 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. 
[2023-12-02 20:52:09,503 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. 
[2023-12-02 20:52:09,503 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. 
[2023-12-02 20:52:09,503 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. 
[2023-12-02 20:52:09,503 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. 
[2023-12-02 20:52:09,504 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. 
[2023-12-02 20:52:09,504 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. 
[2023-12-02 20:52:09,504 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. 
[2023-12-02 20:52:09,504 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. 
[2023-12-02 20:52:09,504 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. 
[2023-12-02 20:52:09,504 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. 
[2023-12-02 20:52:09,504 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 115 states. 
[2023-12-02 20:52:09,504 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. 
[2023-12-02 20:52:09,504 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. 
[2023-12-02 20:52:09,504 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. 
[2023-12-02 20:52:09,504 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states. 
[2023-12-02 20:52:09,505 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 124 states. 
[2023-12-02 20:52:09,509 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0
[2023-12-02 20:52:09,705 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-02 20:52:09,705 INFO  L420      AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] ===
[2023-12-02 20:52:09,705 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-02 20:52:09,841 INFO  L85        PathProgramCache]: Analyzing trace with hash -949063199, now seen corresponding path program 13 times
[2023-12-02 20:52:09,841 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-02 20:52:09,841 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196684978]
[2023-12-02 20:52:09,842 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-02 20:52:09,842 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-02 20:52:09,861 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-02 20:52:10,214 INFO  L134       CoverageAnalysis]: Checked inductivity of 1200 backedges. 1085 proven. 115 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-02 20:52:10,214 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-02 20:52:10,215 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196684978]
[2023-12-02 20:52:10,215 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196684978] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-02 20:52:10,215 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1527046631]
[2023-12-02 20:52:10,215 INFO  L93    rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY
[2023-12-02 20:52:10,215 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-02 20:52:10,215 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3
[2023-12-02 20:52:10,216 INFO  L229       MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-02 20:52:10,217 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process
[2023-12-02 20:52:10,312 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-02 20:52:10,313 INFO  L262         TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 22 conjunts are in the unsatisfiable core
[2023-12-02 20:52:10,316 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-02 20:52:10,432 INFO  L134       CoverageAnalysis]: Checked inductivity of 1200 backedges. 1200 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-02 20:52:10,432 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-02 20:52:10,432 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1527046631] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-02 20:52:10,432 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-02 20:52:10,433 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [23] total 24
[2023-12-02 20:52:10,433 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557029391]
[2023-12-02 20:52:10,433 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-02 20:52:10,433 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 23 states
[2023-12-02 20:52:10,433 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-02 20:52:10,434 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants.
[2023-12-02 20:52:10,435 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=256, Invalid=296, Unknown=0, NotChecked=0, Total=552
[2023-12-02 20:52:10,435 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-02 20:52:10,435 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2023-12-02 20:52:10,435 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 23 states, 23 states have (on average 5.956521739130435) internal successors, (137), 23 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-02 20:52:10,436 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. 
[2023-12-02 20:52:10,436 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2023-12-02 20:52:10,436 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. 
[2023-12-02 20:52:10,436 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. 
[2023-12-02 20:52:10,436 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. 
[2023-12-02 20:52:10,436 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. 
[2023-12-02 20:52:10,436 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. 
[2023-12-02 20:52:10,436 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. 
[2023-12-02 20:52:10,436 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. 
[2023-12-02 20:52:10,436 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. 
[2023-12-02 20:52:10,437 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. 
[2023-12-02 20:52:10,437 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. 
[2023-12-02 20:52:10,437 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. 
[2023-12-02 20:52:10,437 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 81 states. 
[2023-12-02 20:52:10,437 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 97 states. 
[2023-12-02 20:52:10,437 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 113 states. 
[2023-12-02 20:52:10,437 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 120 states. 
[2023-12-02 20:52:10,437 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 115 states. 
[2023-12-02 20:52:10,437 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 117 states. 
[2023-12-02 20:52:10,438 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 119 states. 
[2023-12-02 20:52:10,438 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 121 states. 
[2023-12-02 20:52:10,438 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 123 states. 
[2023-12-02 20:52:10,438 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 124 states. 
[2023-12-02 20:52:10,438 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2023-12-02 20:53:03,400 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-02 20:53:03,400 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2023-12-02 20:53:03,400 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. 
[2023-12-02 20:53:03,400 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. 
[2023-12-02 20:53:03,400 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. 
[2023-12-02 20:53:03,400 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. 
[2023-12-02 20:53:03,400 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. 
[2023-12-02 20:53:03,400 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. 
[2023-12-02 20:53:03,401 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. 
[2023-12-02 20:53:03,401 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. 
[2023-12-02 20:53:03,401 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. 
[2023-12-02 20:53:03,401 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. 
[2023-12-02 20:53:03,401 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. 
[2023-12-02 20:53:03,401 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. 
[2023-12-02 20:53:03,401 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. 
[2023-12-02 20:53:03,401 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. 
[2023-12-02 20:53:03,401 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. 
[2023-12-02 20:53:03,402 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 115 states. 
[2023-12-02 20:53:03,402 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. 
[2023-12-02 20:53:03,402 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. 
[2023-12-02 20:53:03,402 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. 
[2023-12-02 20:53:03,402 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states. 
[2023-12-02 20:53:03,402 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. 
[2023-12-02 20:53:03,403 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. 
[2023-12-02 20:53:03,407 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0
[2023-12-02 20:53:03,603 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23
[2023-12-02 20:53:03,603 INFO  L420      AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] ===
[2023-12-02 20:53:03,604 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-02 20:53:03,604 INFO  L85        PathProgramCache]: Analyzing trace with hash 1260410263, now seen corresponding path program 8 times
[2023-12-02 20:53:03,604 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-02 20:53:03,604 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217174150]
[2023-12-02 20:53:03,604 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-02 20:53:03,604 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-02 20:53:03,634 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-02 20:53:04,586 INFO  L134       CoverageAnalysis]: Checked inductivity of 1102 backedges. 0 proven. 1102 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-02 20:53:04,586 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-02 20:53:04,587 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217174150]
[2023-12-02 20:53:04,587 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217174150] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-02 20:53:04,587 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [370333448]
[2023-12-02 20:53:04,587 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2023-12-02 20:53:04,587 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-02 20:53:04,587 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3
[2023-12-02 20:53:04,588 INFO  L229       MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-02 20:53:04,589 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process
[2023-12-02 20:53:04,684 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2023-12-02 20:53:04,684 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2023-12-02 20:53:04,686 INFO  L262         TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 47 conjunts are in the unsatisfiable core
[2023-12-02 20:53:04,690 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-02 20:53:04,845 INFO  L134       CoverageAnalysis]: Checked inductivity of 1102 backedges. 0 proven. 1102 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-02 20:53:04,845 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-02 20:53:05,692 INFO  L134       CoverageAnalysis]: Checked inductivity of 1102 backedges. 0 proven. 1102 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-02 20:53:05,692 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [370333448] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-02 20:53:05,692 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-12-02 20:53:05,693 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 44, 44] total 86
[2023-12-02 20:53:05,693 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601521805]
[2023-12-02 20:53:05,693 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-12-02 20:53:05,693 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 87 states
[2023-12-02 20:53:05,693 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-02 20:53:05,694 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 87 interpolants.
[2023-12-02 20:53:05,696 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1740, Invalid=5742, Unknown=0, NotChecked=0, Total=7482
[2023-12-02 20:53:05,697 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-02 20:53:05,697 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2023-12-02 20:53:05,697 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 87 states, 87 states have (on average 3.0114942528735633) internal successors, (262), 86 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-02 20:53:05,698 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. 
[2023-12-02 20:53:05,698 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2023-12-02 20:53:05,698 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. 
[2023-12-02 20:53:05,698 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. 
[2023-12-02 20:53:05,698 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. 
[2023-12-02 20:53:05,698 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. 
[2023-12-02 20:53:05,698 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. 
[2023-12-02 20:53:05,698 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. 
[2023-12-02 20:53:05,698 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. 
[2023-12-02 20:53:05,698 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. 
[2023-12-02 20:53:05,699 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. 
[2023-12-02 20:53:05,699 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. 
[2023-12-02 20:53:05,699 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. 
[2023-12-02 20:53:05,699 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 81 states. 
[2023-12-02 20:53:05,699 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 97 states. 
[2023-12-02 20:53:05,699 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 113 states. 
[2023-12-02 20:53:05,699 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 120 states. 
[2023-12-02 20:53:05,699 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 115 states. 
[2023-12-02 20:53:05,699 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 117 states. 
[2023-12-02 20:53:05,699 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 119 states. 
[2023-12-02 20:53:05,700 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 121 states. 
[2023-12-02 20:53:05,700 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 123 states. 
[2023-12-02 20:53:05,700 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 125 states. 
[2023-12-02 20:53:05,700 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. 
[2023-12-02 20:53:05,700 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2023-12-02 20:54:33,012 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-02 20:54:33,012 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2023-12-02 20:54:33,012 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. 
[2023-12-02 20:54:33,012 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. 
[2023-12-02 20:54:33,012 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. 
[2023-12-02 20:54:33,012 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. 
[2023-12-02 20:54:33,012 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. 
[2023-12-02 20:54:33,012 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. 
[2023-12-02 20:54:33,012 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. 
[2023-12-02 20:54:33,012 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. 
[2023-12-02 20:54:33,012 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. 
[2023-12-02 20:54:33,012 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. 
[2023-12-02 20:54:33,012 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. 
[2023-12-02 20:54:33,013 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. 
[2023-12-02 20:54:33,013 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. 
[2023-12-02 20:54:33,013 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. 
[2023-12-02 20:54:33,013 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. 
[2023-12-02 20:54:33,013 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 115 states. 
[2023-12-02 20:54:33,013 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. 
[2023-12-02 20:54:33,013 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. 
[2023-12-02 20:54:33,013 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. 
[2023-12-02 20:54:33,013 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states. 
[2023-12-02 20:54:33,013 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. 
[2023-12-02 20:54:33,013 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. 
[2023-12-02 20:54:33,013 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. 
[2023-12-02 20:54:33,018 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0
[2023-12-02 20:54:33,214 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d75be0-5634-47dd-900b-922037a20345/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24
[2023-12-02 20:54:33,215 INFO  L420      AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] ===
[2023-12-02 20:54:33,216 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-02 20:54:33,217 INFO  L85        PathProgramCache]: Analyzing trace with hash 200868326, now seen corresponding path program 1 times
[2023-12-02 20:54:33,217 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-02 20:54:33,218 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243638171]
[2023-12-02 20:54:33,218 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-02 20:54:33,219 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-02 20:54:33,233 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-02 20:54:33,256 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-02 20:54:33,257 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-02 20:54:33,257 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243638171]
[2023-12-02 20:54:33,257 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243638171] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-02 20:54:33,257 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-02 20:54:33,257 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2023-12-02 20:54:33,257 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146666788]
[2023-12-02 20:54:33,257 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-02 20:54:33,258 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-02 20:54:33,258 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-02 20:54:33,258 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-02 20:54:33,258 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-02 20:54:33,258 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-02 20:54:33,259 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2023-12-02 20:54:33,259 INFO  L496      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)
[2023-12-02 20:54:33,259 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. 
[2023-12-02 20:54:33,259 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2023-12-02 20:54:33,259 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. 
[2023-12-02 20:54:33,259 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. 
[2023-12-02 20:54:33,259 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. 
[2023-12-02 20:54:33,259 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. 
[2023-12-02 20:54:33,260 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. 
[2023-12-02 20:54:33,260 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. 
[2023-12-02 20:54:33,260 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. 
[2023-12-02 20:54:33,260 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. 
[2023-12-02 20:54:33,260 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. 
[2023-12-02 20:54:33,260 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. 
[2023-12-02 20:54:33,260 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. 
[2023-12-02 20:54:33,260 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 81 states. 
[2023-12-02 20:54:33,260 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 97 states. 
[2023-12-02 20:54:33,260 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 113 states. 
[2023-12-02 20:54:33,260 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 120 states. 
[2023-12-02 20:54:33,261 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 115 states. 
[2023-12-02 20:54:33,261 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 117 states. 
[2023-12-02 20:54:33,261 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 119 states. 
[2023-12-02 20:54:33,261 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 121 states. 
[2023-12-02 20:54:33,261 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 123 states. 
[2023-12-02 20:54:33,261 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 125 states. 
[2023-12-02 20:54:33,261 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. 
[2023-12-02 20:54:33,261 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 132 states. 
[2023-12-02 20:54:33,261 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.