./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.2.prop1-func-interl.c --full-output --architecture 64bit


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


Checking for ERROR reachability
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_a2ed4ad9-fe50-4fef-a6cd-14576e47c401/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ed4ad9-fe50-4fef-a6cd-14576e47c401/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ed4ad9-fe50-4fef-a6cd-14576e47c401/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ed4ad9-fe50-4fef-a6cd-14576e47c401/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.2.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ed4ad9-fe50-4fef-a6cd-14576e47c401/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ed4ad9-fe50-4fef-a6cd-14576e47c401/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 473867d34e525b28e26b42df133bde96f703860ebccbeb1b29653c50d41b3f37
--- Real Ultimate output ---
This is Ultimate 0.2.4-dev-0e0057c
[2023-11-26 10:49:04,511 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-11-26 10:49:04,640 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ed4ad9-fe50-4fef-a6cd-14576e47c401/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-64bit-Automizer_Default.epf
[2023-11-26 10:49:04,644 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-11-26 10:49:04,645 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-26 10:49:04,695 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-26 10:49:04,695 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-26 10:49:04,696 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-26 10:49:04,697 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-11-26 10:49:04,705 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-11-26 10:49:04,707 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-26 10:49:04,708 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-26 10:49:04,709 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-26 10:49:04,712 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-11-26 10:49:04,712 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-11-26 10:49:04,713 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-26 10:49:04,713 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-11-26 10:49:04,713 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-11-26 10:49:04,714 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-11-26 10:49:04,714 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-11-26 10:49:04,715 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-26 10:49:04,715 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-11-26 10:49:04,716 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-11-26 10:49:04,716 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-11-26 10:49:04,717 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-26 10:49:04,718 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-11-26 10:49:04,719 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-11-26 10:49:04,719 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-11-26 10:49:04,720 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-11-26 10:49:04,720 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-26 10:49:04,722 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-11-26 10:49:04,722 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-11-26 10:49:04,722 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-11-26 10:49:04,722 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-11-26 10:49:04,723 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-11-26 10:49:04,723 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-26 10:49:04,723 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-11-26 10:49:04,723 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-11-26 10:49:04,723 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-26 10:49:04,724 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
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_a2ed4ad9-fe50-4fef-a6cd-14576e47c401/bin/uautomizer-verify-VRDe98Ueme/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_a2ed4ad9-fe50-4fef-a6cd-14576e47c401/bin/uautomizer-verify-VRDe98Ueme
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )


Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 473867d34e525b28e26b42df133bde96f703860ebccbeb1b29653c50d41b3f37
[2023-11-26 10:49:05,122 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-26 10:49:05,158 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-26 10:49:05,161 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-26 10:49:05,163 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-11-26 10:49:05,164 INFO  L274        PluginConnector]: CDTParser initialized
[2023-11-26 10:49:05,165 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ed4ad9-fe50-4fef-a6cd-14576e47c401/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.2.prop1-func-interl.c
[2023-11-26 10:49:08,352 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-11-26 10:49:08,832 INFO  L384              CDTParser]: Found 1 translation units.
[2023-11-26 10:49:08,832 INFO  L180              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ed4ad9-fe50-4fef-a6cd-14576e47c401/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.2.prop1-func-interl.c
[2023-11-26 10:49:08,863 INFO  L427              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ed4ad9-fe50-4fef-a6cd-14576e47c401/bin/uautomizer-verify-VRDe98Ueme/data/a2bbfc5d9/c36835a86782422284a01786fa6f9205/FLAG9eda0be35
[2023-11-26 10:49:08,883 INFO  L435              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ed4ad9-fe50-4fef-a6cd-14576e47c401/bin/uautomizer-verify-VRDe98Ueme/data/a2bbfc5d9/c36835a86782422284a01786fa6f9205
[2023-11-26 10:49:08,889 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-26 10:49:08,890 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-26 10:49:08,892 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-26 10:49:08,892 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-26 10:49:08,899 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-26 10:49:08,900 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:49:08" (1/1) ...
[2023-11-26 10:49:08,901 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52ec0773 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:08, skipping insertion in model container
[2023-11-26 10:49:08,902 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:49:08" (1/1) ...
[2023-11-26 10:49:09,028 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-11-26 10:49:09,334 WARN  L240   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ed4ad9-fe50-4fef-a6cd-14576e47c401/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.2.prop1-func-interl.c[1176,1189]
[2023-11-26 10:49:10,300 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-11-26 10:49:10,311 INFO  L202         MainTranslator]: Completed pre-run
[2023-11-26 10:49:10,323 WARN  L240   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ed4ad9-fe50-4fef-a6cd-14576e47c401/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.2.prop1-func-interl.c[1176,1189]
[2023-11-26 10:49:10,744 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-11-26 10:49:10,761 INFO  L206         MainTranslator]: Completed translation
[2023-11-26 10:49:10,762 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:10 WrapperNode
[2023-11-26 10:49:10,762 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-26 10:49:10,764 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-26 10:49:10,765 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-26 10:49:10,765 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-26 10:49:10,774 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:10" (1/1) ...
[2023-11-26 10:49:10,939 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:10" (1/1) ...
[2023-11-26 10:49:13,359 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 18672
[2023-11-26 10:49:13,360 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-26 10:49:13,361 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-26 10:49:13,361 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-26 10:49:13,361 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-11-26 10:49:13,374 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:10" (1/1) ...
[2023-11-26 10:49:13,374 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:10" (1/1) ...
[2023-11-26 10:49:13,739 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:10" (1/1) ...
[2023-11-26 10:49:14,076 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2023-11-26 10:49:14,076 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:10" (1/1) ...
[2023-11-26 10:49:14,077 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:10" (1/1) ...
[2023-11-26 10:49:14,667 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:10" (1/1) ...
[2023-11-26 10:49:14,790 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:10" (1/1) ...
[2023-11-26 10:49:14,857 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:10" (1/1) ...
[2023-11-26 10:49:15,021 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:10" (1/1) ...
[2023-11-26 10:49:15,449 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-26 10:49:15,451 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-26 10:49:15,451 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-11-26 10:49:15,451 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-11-26 10:49:15,452 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:10" (1/1) ...
[2023-11-26 10:49:15,459 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-11-26 10:49:15,473 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ed4ad9-fe50-4fef-a6cd-14576e47c401/bin/uautomizer-verify-VRDe98Ueme/z3
[2023-11-26 10:49:15,495 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ed4ad9-fe50-4fef-a6cd-14576e47c401/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2023-11-26 10:49:15,526 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ed4ad9-fe50-4fef-a6cd-14576e47c401/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2023-11-26 10:49:15,537 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-11-26 10:49:15,537 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2023-11-26 10:49:15,537 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-26 10:49:15,538 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-26 10:49:16,449 INFO  L241             CfgBuilder]: Building ICFG
[2023-11-26 10:49:16,454 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-26 10:49:30,258 INFO  L282             CfgBuilder]: Performing block encoding
[2023-11-26 10:49:30,674 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-26 10:49:30,674 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-11-26 10:49:30,677 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:49:30 BoogieIcfgContainer
[2023-11-26 10:49:30,677 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-26 10:49:30,680 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-11-26 10:49:30,682 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-11-26 10:49:30,685 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-11-26 10:49:30,686 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 10:49:08" (1/3) ...
[2023-11-26 10:49:30,688 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d45ac6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:49:30, skipping insertion in model container
[2023-11-26 10:49:30,688 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:10" (2/3) ...
[2023-11-26 10:49:30,689 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d45ac6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:49:30, skipping insertion in model container
[2023-11-26 10:49:30,689 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:49:30" (3/3) ...
[2023-11-26 10:49:30,691 INFO  L112   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.telephony.2.prop1-func-interl.c
[2023-11-26 10:49:30,710 INFO  L203   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-11-26 10:49:30,710 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-11-26 10:49:30,848 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-26 10:49:30,856 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@479082b5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-11-26 10:49:30,856 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-11-26 10:49:30,875 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 4292 states, 4290 states have (on average 1.6703962703962705) internal successors, (7166), 4291 states have internal predecessors, (7166), 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)
[2023-11-26 10:49:30,911 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 229
[2023-11-26 10:49:30,911 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-26 10:49:30,912 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-26 10:49:30,913 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-26 10:49:30,918 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-26 10:49:30,918 INFO  L85        PathProgramCache]: Analyzing trace with hash 1107750039, now seen corresponding path program 1 times
[2023-11-26 10:49:30,939 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-26 10:49:30,942 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881678404]
[2023-11-26 10:49:30,942 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 10:49:30,943 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-26 10:49:31,455 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 10:49:32,915 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-26 10:49:32,916 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-26 10:49:32,917 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881678404]
[2023-11-26 10:49:32,918 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881678404] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-26 10:49:32,918 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-26 10:49:32,918 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-26 10:49:32,920 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578386008]
[2023-11-26 10:49:32,922 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-26 10:49:32,927 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-11-26 10:49:32,928 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-26 10:49:32,971 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-11-26 10:49:32,971 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-11-26 10:49:32,985 INFO  L87              Difference]: Start difference. First operand  has 4292 states, 4290 states have (on average 1.6703962703962705) internal successors, (7166), 4291 states have internal predecessors, (7166), 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) Second operand  has 5 states, 5 states have (on average 45.6) internal successors, (228), 4 states have internal predecessors, (228), 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)
[2023-11-26 10:49:39,330 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-26 10:49:39,331 INFO  L93              Difference]: Finished difference Result 12540 states and 20944 transitions.
[2023-11-26 10:49:39,334 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-26 10:49:39,336 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 45.6) internal successors, (228), 4 states have internal predecessors, (228), 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) Word has length 228
[2023-11-26 10:49:39,340 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-26 10:49:39,413 INFO  L225             Difference]: With dead ends: 12540
[2023-11-26 10:49:39,413 INFO  L226             Difference]: Without dead ends: 8414
[2023-11-26 10:49:39,430 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-11-26 10:49:39,433 INFO  L413           NwaCegarLoop]: 5826 mSDtfsCounter, 20713 mSDsluCounter, 11646 mSDsCounter, 0 mSdLazyCounter, 4013 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20713 SdHoareTripleChecker+Valid, 17472 SdHoareTripleChecker+Invalid, 4014 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4013 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time
[2023-11-26 10:49:39,435 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [20713 Valid, 17472 Invalid, 4014 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [1 Valid, 4013 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time]
[2023-11-26 10:49:39,471 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8414 states.
[2023-11-26 10:49:39,682 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8414 to 4455.
[2023-11-26 10:49:39,697 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4455 states, 4454 states have (on average 1.669286035024697) internal successors, (7435), 4454 states have internal predecessors, (7435), 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)
[2023-11-26 10:49:39,718 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4455 states to 4455 states and 7435 transitions.
[2023-11-26 10:49:39,720 INFO  L78                 Accepts]: Start accepts. Automaton has 4455 states and 7435 transitions. Word has length 228
[2023-11-26 10:49:39,722 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-26 10:49:39,722 INFO  L495      AbstractCegarLoop]: Abstraction has 4455 states and 7435 transitions.
[2023-11-26 10:49:39,722 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 45.6) internal successors, (228), 4 states have internal predecessors, (228), 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)
[2023-11-26 10:49:39,723 INFO  L276                IsEmpty]: Start isEmpty. Operand 4455 states and 7435 transitions.
[2023-11-26 10:49:39,727 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 230
[2023-11-26 10:49:39,727 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-26 10:49:39,728 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-26 10:49:39,728 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-11-26 10:49:39,729 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-26 10:49:39,729 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-26 10:49:39,730 INFO  L85        PathProgramCache]: Analyzing trace with hash -1453295833, now seen corresponding path program 1 times
[2023-11-26 10:49:39,730 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-26 10:49:39,730 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238958586]
[2023-11-26 10:49:39,731 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 10:49:39,731 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-26 10:49:39,922 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 10:49:40,637 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-26 10:49:40,637 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-26 10:49:40,637 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238958586]
[2023-11-26 10:49:40,638 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238958586] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-26 10:49:40,638 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-26 10:49:40,638 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-26 10:49:40,639 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625369916]
[2023-11-26 10:49:40,639 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-26 10:49:40,643 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-26 10:49:40,648 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-26 10:49:40,649 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-26 10:49:40,649 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-26 10:49:40,650 INFO  L87              Difference]: Start difference. First operand 4455 states and 7435 transitions. Second operand  has 4 states, 4 states have (on average 57.25) internal successors, (229), 4 states have internal predecessors, (229), 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)
[2023-11-26 10:49:40,817 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-26 10:49:40,818 INFO  L93              Difference]: Finished difference Result 4459 states and 7439 transitions.
[2023-11-26 10:49:40,819 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-11-26 10:49:40,819 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 57.25) internal successors, (229), 4 states have internal predecessors, (229), 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) Word has length 229
[2023-11-26 10:49:40,821 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-26 10:49:40,844 INFO  L225             Difference]: With dead ends: 4459
[2023-11-26 10:49:40,844 INFO  L226             Difference]: Without dead ends: 4457
[2023-11-26 10:49:40,847 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-26 10:49:40,848 INFO  L413           NwaCegarLoop]: 7159 mSDtfsCounter, 1 mSDsluCounter, 14313 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 21472 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-26 10:49:40,850 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 21472 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-26 10:49:40,859 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4457 states.
[2023-11-26 10:49:40,940 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4457 to 4457.
[2023-11-26 10:49:40,951 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4457 states, 4456 states have (on average 1.6689856373429084) internal successors, (7437), 4456 states have internal predecessors, (7437), 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)
[2023-11-26 10:49:40,968 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4457 states to 4457 states and 7437 transitions.
[2023-11-26 10:49:40,969 INFO  L78                 Accepts]: Start accepts. Automaton has 4457 states and 7437 transitions. Word has length 229
[2023-11-26 10:49:40,970 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-26 10:49:40,970 INFO  L495      AbstractCegarLoop]: Abstraction has 4457 states and 7437 transitions.
[2023-11-26 10:49:40,970 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 57.25) internal successors, (229), 4 states have internal predecessors, (229), 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)
[2023-11-26 10:49:40,971 INFO  L276                IsEmpty]: Start isEmpty. Operand 4457 states and 7437 transitions.
[2023-11-26 10:49:40,974 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 231
[2023-11-26 10:49:40,974 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-26 10:49:40,974 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-26 10:49:40,975 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-11-26 10:49:40,975 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-26 10:49:40,985 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-26 10:49:40,985 INFO  L85        PathProgramCache]: Analyzing trace with hash -2100771571, now seen corresponding path program 1 times
[2023-11-26 10:49:40,985 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-26 10:49:40,986 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443994113]
[2023-11-26 10:49:40,986 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 10:49:40,986 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-26 10:49:41,100 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 10:49:41,550 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-26 10:49:41,551 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-26 10:49:41,551 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443994113]
[2023-11-26 10:49:41,552 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443994113] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-26 10:49:41,552 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-26 10:49:41,552 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-26 10:49:41,552 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187367263]
[2023-11-26 10:49:41,553 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-26 10:49:41,553 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-26 10:49:41,553 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-26 10:49:41,554 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-26 10:49:41,556 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-26 10:49:41,557 INFO  L87              Difference]: Start difference. First operand 4457 states and 7437 transitions. Second operand  has 4 states, 4 states have (on average 57.5) internal successors, (230), 4 states have internal predecessors, (230), 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)
[2023-11-26 10:49:41,846 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-26 10:49:41,848 INFO  L93              Difference]: Finished difference Result 8586 states and 14329 transitions.
[2023-11-26 10:49:41,849 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-11-26 10:49:41,849 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 57.5) internal successors, (230), 4 states have internal predecessors, (230), 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) Word has length 230
[2023-11-26 10:49:41,849 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-26 10:49:41,873 INFO  L225             Difference]: With dead ends: 8586
[2023-11-26 10:49:41,873 INFO  L226             Difference]: Without dead ends: 4460
[2023-11-26 10:49:41,881 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-26 10:49:41,884 INFO  L413           NwaCegarLoop]: 7159 mSDtfsCounter, 1 mSDsluCounter, 14311 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 21470 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-26 10:49:41,885 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 21470 Invalid, 15 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-26 10:49:41,894 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4460 states.
[2023-11-26 10:49:41,977 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4460 to 4459.
[2023-11-26 10:49:41,996 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4459 states, 4458 states have (on average 1.6686855091969492) internal successors, (7439), 4458 states have internal predecessors, (7439), 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)
[2023-11-26 10:49:42,016 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4459 states to 4459 states and 7439 transitions.
[2023-11-26 10:49:42,017 INFO  L78                 Accepts]: Start accepts. Automaton has 4459 states and 7439 transitions. Word has length 230
[2023-11-26 10:49:42,018 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-26 10:49:42,018 INFO  L495      AbstractCegarLoop]: Abstraction has 4459 states and 7439 transitions.
[2023-11-26 10:49:42,019 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 57.5) internal successors, (230), 4 states have internal predecessors, (230), 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)
[2023-11-26 10:49:42,019 INFO  L276                IsEmpty]: Start isEmpty. Operand 4459 states and 7439 transitions.
[2023-11-26 10:49:42,023 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 232
[2023-11-26 10:49:42,023 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-26 10:49:42,023 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-26 10:49:42,028 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2023-11-26 10:49:42,029 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-26 10:49:42,029 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-26 10:49:42,029 INFO  L85        PathProgramCache]: Analyzing trace with hash -909840383, now seen corresponding path program 1 times
[2023-11-26 10:49:42,030 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-26 10:49:42,030 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619542629]
[2023-11-26 10:49:42,030 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 10:49:42,030 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-26 10:49:42,138 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 10:49:42,736 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-26 10:49:42,737 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-26 10:49:42,737 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619542629]
[2023-11-26 10:49:42,737 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619542629] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-26 10:49:42,737 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-26 10:49:42,737 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-11-26 10:49:42,738 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112741136]
[2023-11-26 10:49:42,738 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-26 10:49:42,739 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-11-26 10:49:42,739 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-26 10:49:42,740 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-11-26 10:49:42,740 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2023-11-26 10:49:42,740 INFO  L87              Difference]: Start difference. First operand 4459 states and 7439 transitions. Second operand  has 6 states, 6 states have (on average 38.5) internal successors, (231), 5 states have internal predecessors, (231), 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)
[2023-11-26 10:49:43,176 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-26 10:49:43,177 INFO  L93              Difference]: Finished difference Result 12705 states and 21204 transitions.
[2023-11-26 10:49:43,177 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2023-11-26 10:49:43,178 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 38.5) internal successors, (231), 5 states have internal predecessors, (231), 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) Word has length 231
[2023-11-26 10:49:43,178 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-26 10:49:43,235 INFO  L225             Difference]: With dead ends: 12705
[2023-11-26 10:49:43,236 INFO  L226             Difference]: Without dead ends: 8577
[2023-11-26 10:49:43,243 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90
[2023-11-26 10:49:43,250 INFO  L413           NwaCegarLoop]: 7425 mSDtfsCounter, 27839 mSDsluCounter, 21726 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27839 SdHoareTripleChecker+Valid, 29151 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-11-26 10:49:43,252 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [27839 Valid, 29151 Invalid, 40 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-11-26 10:49:43,268 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8577 states.
[2023-11-26 10:49:43,378 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8577 to 4461.
[2023-11-26 10:49:43,386 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4461 states, 4460 states have (on average 1.6683856502242151) internal successors, (7441), 4460 states have internal predecessors, (7441), 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)
[2023-11-26 10:49:43,398 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4461 states to 4461 states and 7441 transitions.
[2023-11-26 10:49:43,398 INFO  L78                 Accepts]: Start accepts. Automaton has 4461 states and 7441 transitions. Word has length 231
[2023-11-26 10:49:43,399 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-26 10:49:43,399 INFO  L495      AbstractCegarLoop]: Abstraction has 4461 states and 7441 transitions.
[2023-11-26 10:49:43,399 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 38.5) internal successors, (231), 5 states have internal predecessors, (231), 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)
[2023-11-26 10:49:43,400 INFO  L276                IsEmpty]: Start isEmpty. Operand 4461 states and 7441 transitions.
[2023-11-26 10:49:43,681 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2919
[2023-11-26 10:49:43,682 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-26 10:49:43,684 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2023-11-26 10:49:43,685 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2023-11-26 10:49:43,685 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-26 10:49:43,685 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-26 10:49:43,687 INFO  L85        PathProgramCache]: Analyzing trace with hash -446363530, now seen corresponding path program 1 times
[2023-11-26 10:49:43,687 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-26 10:49:43,688 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830679301]
[2023-11-26 10:49:43,688 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 10:49:43,689 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-26 10:49:44,259 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-11-26 10:49:44,259 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [274059221]
[2023-11-26 10:49:44,261 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 10:49:44,261 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-26 10:49:44,261 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ed4ad9-fe50-4fef-a6cd-14576e47c401/bin/uautomizer-verify-VRDe98Ueme/z3
[2023-11-26 10:49:44,265 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ed4ad9-fe50-4fef-a6cd-14576e47c401/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-26 10:49:44,285 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2ed4ad9-fe50-4fef-a6cd-14576e47c401/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2023-11-26 10:49:48,422 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 10:49:48,514 INFO  L262         TraceCheckSpWp]: Trace formula consists of 12984 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-11-26 10:49:48,614 INFO  L285         TraceCheckSpWp]: Computing forward predicates...