./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.elevator.4.prop1-func-interl.c --full-output --architecture 64bit


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


Checking for ERROR reachability
Using default analysis
Version 9bd2c7ff
Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e38acfb-128f-4478-88c9-65a3771d26d3/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e38acfb-128f-4478-88c9-65a3771d26d3/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e38acfb-128f-4478-88c9-65a3771d26d3/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e38acfb-128f-4478-88c9-65a3771d26d3/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.elevator.4.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e38acfb-128f-4478-88c9-65a3771d26d3/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e38acfb-128f-4478-88c9-65a3771d26d3/bin/uautomizer-verify-uCwYo4JHxu --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 0912ab1201bdb71c08393fa993561718ce54d772626acabbc8081e133d417f51
--- Real Ultimate output ---
This is Ultimate 0.2.3-dev-9bd2c7f
[2023-11-19 07:41:16,037 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-11-19 07:41:16,146 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e38acfb-128f-4478-88c9-65a3771d26d3/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-64bit-Automizer_Default.epf
[2023-11-19 07:41:16,160 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-11-19 07:41:16,161 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-19 07:41:16,198 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-19 07:41:16,199 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-19 07:41:16,199 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-19 07:41:16,200 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-19 07:41:16,206 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-19 07:41:16,207 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-19 07:41:16,208 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-11-19 07:41:16,208 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-11-19 07:41:16,210 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-19 07:41:16,211 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-11-19 07:41:16,211 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-11-19 07:41:16,211 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-11-19 07:41:16,212 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-11-19 07:41:16,213 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-19 07:41:16,213 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-11-19 07:41:16,213 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-11-19 07:41:16,214 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-11-19 07:41:16,215 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-19 07:41:16,216 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-11-19 07:41:16,216 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-11-19 07:41:16,217 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 07:41:16,217 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-19 07:41:16,218 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-11-19 07:41:16,218 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-11-19 07:41:16,218 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-11-19 07:41:16,220 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-11-19 07:41:16,220 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-19 07:41:16,221 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-11-19 07:41:16,221 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-11-19 07:41:16,221 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-19 07:41:16,221 INFO  L153        SettingsManager]:  * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-11-19 07:41:16,222 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_0e38acfb-128f-4478-88c9-65a3771d26d3/bin/uautomizer-verify-uCwYo4JHxu/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_0e38acfb-128f-4478-88c9-65a3771d26d3/bin/uautomizer-verify-uCwYo4JHxu
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 -> 0912ab1201bdb71c08393fa993561718ce54d772626acabbc8081e133d417f51
[2023-11-19 07:41:16,536 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-19 07:41:16,570 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-19 07:41:16,573 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-19 07:41:16,574 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-11-19 07:41:16,575 INFO  L274        PluginConnector]: CDTParser initialized
[2023-11-19 07:41:16,577 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e38acfb-128f-4478-88c9-65a3771d26d3/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.elevator.4.prop1-func-interl.c
[2023-11-19 07:41:19,735 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-11-19 07:41:20,186 INFO  L384              CDTParser]: Found 1 translation units.
[2023-11-19 07:41:20,187 INFO  L180              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e38acfb-128f-4478-88c9-65a3771d26d3/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.elevator.4.prop1-func-interl.c
[2023-11-19 07:41:20,213 INFO  L427              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e38acfb-128f-4478-88c9-65a3771d26d3/bin/uautomizer-verify-uCwYo4JHxu/data/430533323/c9a799ae89e541bb8c3da9bcad2b74a8/FLAG225b4f425
[2023-11-19 07:41:20,231 INFO  L435              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e38acfb-128f-4478-88c9-65a3771d26d3/bin/uautomizer-verify-uCwYo4JHxu/data/430533323/c9a799ae89e541bb8c3da9bcad2b74a8
[2023-11-19 07:41:20,236 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-19 07:41:20,238 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-19 07:41:20,244 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-19 07:41:20,245 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-19 07:41:20,251 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-19 07:41:20,254 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:41:20" (1/1) ...
[2023-11-19 07:41:20,256 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5acd8a39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:20, skipping insertion in model container
[2023-11-19 07:41:20,256 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:41:20" (1/1) ...
[2023-11-19 07:41:20,361 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-11-19 07:41:20,602 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_0e38acfb-128f-4478-88c9-65a3771d26d3/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.elevator.4.prop1-func-interl.c[1175,1188]
[2023-11-19 07:41:21,400 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-11-19 07:41:21,413 INFO  L202         MainTranslator]: Completed pre-run
[2023-11-19 07:41:21,427 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_0e38acfb-128f-4478-88c9-65a3771d26d3/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.elevator.4.prop1-func-interl.c[1175,1188]
[2023-11-19 07:41:21,757 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-11-19 07:41:21,775 INFO  L206         MainTranslator]: Completed translation
[2023-11-19 07:41:21,775 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:21 WrapperNode
[2023-11-19 07:41:21,775 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-19 07:41:21,777 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-19 07:41:21,777 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-19 07:41:21,778 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-19 07:41:21,786 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:21" (1/1) ...
[2023-11-19 07:41:21,938 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:21" (1/1) ...
[2023-11-19 07:41:23,508 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 11673
[2023-11-19 07:41:23,513 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-19 07:41:23,535 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-19 07:41:23,535 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-19 07:41:23,536 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-11-19 07:41:23,547 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:21" (1/1) ...
[2023-11-19 07:41:23,547 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:21" (1/1) ...
[2023-11-19 07:41:24,001 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:21" (1/1) ...
[2023-11-19 07:41:24,001 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:21" (1/1) ...
[2023-11-19 07:41:24,707 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:21" (1/1) ...
[2023-11-19 07:41:24,793 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:21" (1/1) ...
[2023-11-19 07:41:24,866 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:21" (1/1) ...
[2023-11-19 07:41:24,903 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:21" (1/1) ...
[2023-11-19 07:41:25,133 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-19 07:41:25,134 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-19 07:41:25,134 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-11-19 07:41:25,135 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-11-19 07:41:25,135 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:21" (1/1) ...
[2023-11-19 07:41:25,144 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 07:41:25,157 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e38acfb-128f-4478-88c9-65a3771d26d3/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:41:25,170 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e38acfb-128f-4478-88c9-65a3771d26d3/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-11-19 07:41:25,200 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e38acfb-128f-4478-88c9-65a3771d26d3/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-11-19 07:41:25,213 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-11-19 07:41:25,214 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2023-11-19 07:41:25,214 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-19 07:41:25,215 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-19 07:41:25,866 INFO  L236             CfgBuilder]: Building ICFG
[2023-11-19 07:41:25,868 INFO  L262             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-19 07:41:34,896 INFO  L277             CfgBuilder]: Performing block encoding
[2023-11-19 07:41:34,933 INFO  L297             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-19 07:41:34,933 INFO  L302             CfgBuilder]: Removed 1 assume(true) statements.
[2023-11-19 07:41:34,953 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:41:34 BoogieIcfgContainer
[2023-11-19 07:41:34,954 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-19 07:41:34,958 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-11-19 07:41:34,958 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-11-19 07:41:34,962 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-11-19 07:41:34,962 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:41:20" (1/3) ...
[2023-11-19 07:41:34,963 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d038ac6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:41:34, skipping insertion in model container
[2023-11-19 07:41:34,963 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:21" (2/3) ...
[2023-11-19 07:41:34,965 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d038ac6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:41:34, skipping insertion in model container
[2023-11-19 07:41:34,967 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:41:34" (3/3) ...
[2023-11-19 07:41:34,968 INFO  L112   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.elevator.4.prop1-func-interl.c
[2023-11-19 07:41:34,988 INFO  L203   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-11-19 07:41:34,989 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-11-19 07:41:35,112 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-19 07:41:35,119 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;@19cdd395, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-11-19 07:41:35,120 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-11-19 07:41:35,137 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 2611 states, 2609 states have (on average 1.6661556151782293) internal successors, (4347), 2610 states have internal predecessors, (4347), 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)
[2023-11-19 07:41:35,171 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 192
[2023-11-19 07:41:35,173 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-19 07:41:35,174 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]
[2023-11-19 07:41:35,174 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-19 07:41:35,180 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:41:35,180 INFO  L85        PathProgramCache]: Analyzing trace with hash 1978435496, now seen corresponding path program 1 times
[2023-11-19 07:41:35,190 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:41:35,191 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699903796]
[2023-11-19 07:41:35,191 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:41:35,192 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:41:35,604 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:41:36,614 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:41:36,615 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:41:36,615 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699903796]
[2023-11-19 07:41:36,616 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699903796] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:41:36,617 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:41:36,617 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-19 07:41:36,619 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440046864]
[2023-11-19 07:41:36,621 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:41:36,628 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-19 07:41:36,629 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:41:36,681 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-19 07:41:36,682 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-19 07:41:36,692 INFO  L87              Difference]: Start difference. First operand  has 2611 states, 2609 states have (on average 1.6661556151782293) internal successors, (4347), 2610 states have internal predecessors, (4347), 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 4 states, 4 states have (on average 47.75) internal successors, (191), 4 states have internal predecessors, (191), 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)
[2023-11-19 07:41:36,970 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 07:41:36,970 INFO  L93              Difference]: Finished difference Result 5071 states and 8447 transitions.
[2023-11-19 07:41:36,971 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-11-19 07:41:36,973 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 47.75) internal successors, (191), 4 states have internal predecessors, (191), 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 191
[2023-11-19 07:41:36,975 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 07:41:37,011 INFO  L225             Difference]: With dead ends: 5071
[2023-11-19 07:41:37,012 INFO  L226             Difference]: Without dead ends: 2609
[2023-11-19 07:41:37,023 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
[2023-11-19 07:41:37,027 INFO  L413           NwaCegarLoop]: 4339 mSDtfsCounter, 1 mSDsluCounter, 8672 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 13011 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-19 07:41:37,029 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 13011 Invalid, 11 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-19 07:41:37,054 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2609 states.
[2023-11-19 07:41:37,163 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2609 to 2609.
[2023-11-19 07:41:37,171 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2609 states, 2608 states have (on average 1.665260736196319) internal successors, (4343), 2608 states have internal predecessors, (4343), 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)
[2023-11-19 07:41:37,181 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2609 states to 2609 states and 4343 transitions.
[2023-11-19 07:41:37,183 INFO  L78                 Accepts]: Start accepts. Automaton has 2609 states and 4343 transitions. Word has length 191
[2023-11-19 07:41:37,186 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-19 07:41:37,187 INFO  L495      AbstractCegarLoop]: Abstraction has 2609 states and 4343 transitions.
[2023-11-19 07:41:37,187 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 47.75) internal successors, (191), 4 states have internal predecessors, (191), 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)
[2023-11-19 07:41:37,188 INFO  L276                IsEmpty]: Start isEmpty. Operand 2609 states and 4343 transitions.
[2023-11-19 07:41:37,195 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 193
[2023-11-19 07:41:37,195 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-19 07:41:37,196 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]
[2023-11-19 07:41:37,196 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-11-19 07:41:37,197 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-19 07:41:37,197 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:41:37,197 INFO  L85        PathProgramCache]: Analyzing trace with hash 1203684296, now seen corresponding path program 1 times
[2023-11-19 07:41:37,198 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:41:37,198 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678996239]
[2023-11-19 07:41:37,198 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:41:37,198 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:41:37,337 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:41:37,834 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:41:37,835 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:41:37,836 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678996239]
[2023-11-19 07:41:37,836 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678996239] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:41:37,836 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:41:37,836 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-19 07:41:37,837 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005821464]
[2023-11-19 07:41:37,837 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:41:37,840 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-19 07:41:37,841 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:41:37,842 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-19 07:41:37,843 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-19 07:41:37,843 INFO  L87              Difference]: Start difference. First operand 2609 states and 4343 transitions. Second operand  has 4 states, 4 states have (on average 48.0) internal successors, (192), 4 states have internal predecessors, (192), 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)
[2023-11-19 07:41:38,152 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 07:41:38,152 INFO  L93              Difference]: Finished difference Result 5072 states and 8443 transitions.
[2023-11-19 07:41:38,152 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-11-19 07:41:38,153 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 48.0) internal successors, (192), 4 states have internal predecessors, (192), 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 192
[2023-11-19 07:41:38,156 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 07:41:38,169 INFO  L225             Difference]: With dead ends: 5072
[2023-11-19 07:41:38,169 INFO  L226             Difference]: Without dead ends: 2612
[2023-11-19 07:41:38,177 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
[2023-11-19 07:41:38,179 INFO  L413           NwaCegarLoop]: 4339 mSDtfsCounter, 1 mSDsluCounter, 8669 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 13008 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-19 07:41:38,181 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 13008 Invalid, 14 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-19 07:41:38,188 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2612 states.
[2023-11-19 07:41:38,228 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2612 to 2611.
[2023-11-19 07:41:38,236 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2611 states, 2610 states have (on average 1.6647509578544062) internal successors, (4345), 2610 states have internal predecessors, (4345), 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)
[2023-11-19 07:41:38,247 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2611 states to 2611 states and 4345 transitions.
[2023-11-19 07:41:38,247 INFO  L78                 Accepts]: Start accepts. Automaton has 2611 states and 4345 transitions. Word has length 192
[2023-11-19 07:41:38,249 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-19 07:41:38,249 INFO  L495      AbstractCegarLoop]: Abstraction has 2611 states and 4345 transitions.
[2023-11-19 07:41:38,250 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 48.0) internal successors, (192), 4 states have internal predecessors, (192), 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)
[2023-11-19 07:41:38,250 INFO  L276                IsEmpty]: Start isEmpty. Operand 2611 states and 4345 transitions.
[2023-11-19 07:41:38,253 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 194
[2023-11-19 07:41:38,253 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-19 07:41:38,253 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]
[2023-11-19 07:41:38,253 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-11-19 07:41:38,254 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-19 07:41:38,264 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:41:38,265 INFO  L85        PathProgramCache]: Analyzing trace with hash -1550923838, now seen corresponding path program 1 times
[2023-11-19 07:41:38,265 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:41:38,266 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288564354]
[2023-11-19 07:41:38,266 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:41:38,266 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:41:38,355 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:41:38,710 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:41:38,710 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:41:38,711 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288564354]
[2023-11-19 07:41:38,711 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288564354] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:41:38,711 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:41:38,711 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-19 07:41:38,712 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772002181]
[2023-11-19 07:41:38,712 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:41:38,713 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-19 07:41:38,713 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:41:38,714 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-19 07:41:38,714 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-19 07:41:38,714 INFO  L87              Difference]: Start difference. First operand 2611 states and 4345 transitions. Second operand  has 4 states, 4 states have (on average 48.25) internal successors, (193), 4 states have internal predecessors, (193), 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)
[2023-11-19 07:41:38,959 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 07:41:38,959 INFO  L93              Difference]: Finished difference Result 7525 states and 12526 transitions.
[2023-11-19 07:41:38,960 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-11-19 07:41:38,960 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 48.25) internal successors, (193), 4 states have internal predecessors, (193), 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 193
[2023-11-19 07:41:38,961 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 07:41:38,988 INFO  L225             Difference]: With dead ends: 7525
[2023-11-19 07:41:38,988 INFO  L226             Difference]: Without dead ends: 5063
[2023-11-19 07:41:38,992 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
[2023-11-19 07:41:38,994 INFO  L413           NwaCegarLoop]: 4545 mSDtfsCounter, 4080 mSDsluCounter, 8871 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4080 SdHoareTripleChecker+Valid, 13416 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-19 07:41:38,994 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [4080 Valid, 13416 Invalid, 19 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-19 07:41:39,003 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5063 states.
[2023-11-19 07:41:39,059 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5063 to 2613.
[2023-11-19 07:41:39,066 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2613 states, 2612 states have (on average 1.6642419601837672) internal successors, (4347), 2612 states have internal predecessors, (4347), 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)
[2023-11-19 07:41:39,077 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2613 states to 2613 states and 4347 transitions.
[2023-11-19 07:41:39,077 INFO  L78                 Accepts]: Start accepts. Automaton has 2613 states and 4347 transitions. Word has length 193
[2023-11-19 07:41:39,077 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-19 07:41:39,078 INFO  L495      AbstractCegarLoop]: Abstraction has 2613 states and 4347 transitions.
[2023-11-19 07:41:39,079 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 48.25) internal successors, (193), 4 states have internal predecessors, (193), 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)
[2023-11-19 07:41:39,082 INFO  L276                IsEmpty]: Start isEmpty. Operand 2613 states and 4347 transitions.
[2023-11-19 07:41:39,084 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 195
[2023-11-19 07:41:39,084 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-19 07:41:39,085 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]
[2023-11-19 07:41:39,085 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2023-11-19 07:41:39,086 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-19 07:41:39,088 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:41:39,088 INFO  L85        PathProgramCache]: Analyzing trace with hash 765909166, now seen corresponding path program 1 times
[2023-11-19 07:41:39,089 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:41:39,094 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717027497]
[2023-11-19 07:41:39,094 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:41:39,095 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:41:39,182 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:41:39,585 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:41:39,585 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:41:39,585 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717027497]
[2023-11-19 07:41:39,586 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717027497] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:41:39,586 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:41:39,586 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2023-11-19 07:41:39,586 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435597969]
[2023-11-19 07:41:39,587 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:41:39,587 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-11-19 07:41:39,587 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:41:39,588 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-11-19 07:41:39,588 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2023-11-19 07:41:39,589 INFO  L87              Difference]: Start difference. First operand 2613 states and 4347 transitions. Second operand  has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 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)
[2023-11-19 07:41:40,118 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 07:41:40,118 INFO  L93              Difference]: Finished difference Result 7543 states and 12550 transitions.
[2023-11-19 07:41:40,118 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2023-11-19 07:41:40,119 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 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 194
[2023-11-19 07:41:40,119 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 07:41:40,147 INFO  L225             Difference]: With dead ends: 7543
[2023-11-19 07:41:40,147 INFO  L226             Difference]: Without dead ends: 5079
[2023-11-19 07:41:40,151 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72
[2023-11-19 07:41:40,161 INFO  L413           NwaCegarLoop]: 4545 mSDtfsCounter, 8177 mSDsluCounter, 17291 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8177 SdHoareTripleChecker+Valid, 21836 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-11-19 07:41:40,162 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8177 Valid, 21836 Invalid, 47 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-11-19 07:41:40,172 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5079 states.
[2023-11-19 07:41:40,234 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5079 to 2616.
[2023-11-19 07:41:40,240 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2616 states, 2615 states have (on average 1.664244741873805) internal successors, (4352), 2615 states have internal predecessors, (4352), 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)
[2023-11-19 07:41:40,251 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2616 states to 2616 states and 4352 transitions.
[2023-11-19 07:41:40,251 INFO  L78                 Accepts]: Start accepts. Automaton has 2616 states and 4352 transitions. Word has length 194
[2023-11-19 07:41:40,252 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-19 07:41:40,252 INFO  L495      AbstractCegarLoop]: Abstraction has 2616 states and 4352 transitions.
[2023-11-19 07:41:40,252 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 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)
[2023-11-19 07:41:40,252 INFO  L276                IsEmpty]: Start isEmpty. Operand 2616 states and 4352 transitions.
[2023-11-19 07:41:40,256 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 196
[2023-11-19 07:41:40,256 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-19 07:41:40,256 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]
[2023-11-19 07:41:40,257 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2023-11-19 07:41:40,257 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-19 07:41:40,257 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:41:40,258 INFO  L85        PathProgramCache]: Analyzing trace with hash -1101614370, now seen corresponding path program 1 times
[2023-11-19 07:41:40,258 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:41:40,258 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587257525]
[2023-11-19 07:41:40,258 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:41:40,258 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:41:40,349 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:41:40,801 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:41:40,801 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:41:40,802 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587257525]
[2023-11-19 07:41:40,802 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587257525] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:41:40,802 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:41:40,802 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-11-19 07:41:40,802 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466647027]
[2023-11-19 07:41:40,803 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:41:40,803 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-11-19 07:41:40,803 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:41:40,804 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-11-19 07:41:40,804 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-11-19 07:41:40,805 INFO  L87              Difference]: Start difference. First operand 2616 states and 4352 transitions. Second operand  has 5 states, 5 states have (on average 39.0) internal successors, (195), 5 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:41:41,148 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 07:41:41,149 INFO  L93              Difference]: Finished difference Result 7657 states and 12742 transitions.
[2023-11-19 07:41:41,149 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-11-19 07:41:41,150 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 39.0) internal successors, (195), 5 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 195
[2023-11-19 07:41:41,150 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 07:41:41,179 INFO  L225             Difference]: With dead ends: 7657
[2023-11-19 07:41:41,179 INFO  L226             Difference]: Without dead ends: 5190
[2023-11-19 07:41:41,184 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2023-11-19 07:41:41,185 INFO  L413           NwaCegarLoop]: 4535 mSDtfsCounter, 16610 mSDsluCounter, 8667 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16610 SdHoareTripleChecker+Valid, 13202 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-19 07:41:41,185 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [16610 Valid, 13202 Invalid, 22 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-19 07:41:41,194 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5190 states.
[2023-11-19 07:41:41,255 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5190 to 2738.
[2023-11-19 07:41:41,261 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2738 states, 2737 states have (on average 1.6638655462184875) internal successors, (4554), 2737 states have internal predecessors, (4554), 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)
[2023-11-19 07:41:41,272 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2738 states to 2738 states and 4554 transitions.
[2023-11-19 07:41:41,272 INFO  L78                 Accepts]: Start accepts. Automaton has 2738 states and 4554 transitions. Word has length 195
[2023-11-19 07:41:41,273 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-19 07:41:41,273 INFO  L495      AbstractCegarLoop]: Abstraction has 2738 states and 4554 transitions.
[2023-11-19 07:41:41,273 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 39.0) internal successors, (195), 5 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:41:41,273 INFO  L276                IsEmpty]: Start isEmpty. Operand 2738 states and 4554 transitions.
[2023-11-19 07:41:41,400 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1831
[2023-11-19 07:41:41,401 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-19 07:41:41,402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:41:41,403 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2023-11-19 07:41:41,403 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-19 07:41:41,403 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:41:41,404 INFO  L85        PathProgramCache]: Analyzing trace with hash 1395353873, now seen corresponding path program 1 times
[2023-11-19 07:41:41,405 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:41:41,405 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945802375]
[2023-11-19 07:41:41,405 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:41:41,406 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:41:41,918 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-11-19 07:41:41,918 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [793363167]
[2023-11-19 07:41:41,919 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:41:41,920 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 07:41:41,920 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e38acfb-128f-4478-88c9-65a3771d26d3/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:41:41,922 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e38acfb-128f-4478-88c9-65a3771d26d3/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-19 07:41:41,959 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e38acfb-128f-4478-88c9-65a3771d26d3/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2023-11-19 07:41:46,432 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:41:46,486 INFO  L262         TraceCheckSpWp]: Trace formula consists of 8372 conjuncts, 10 conjunts are in the unsatisfiable core
[2023-11-19 07:41:46,587 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:41:50,288 INFO  L134       CoverageAnalysis]: Checked inductivity of 90 backedges. 6 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:41:50,288 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-11-19 07:41:54,765 INFO  L134       CoverageAnalysis]: Checked inductivity of 90 backedges. 6 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:41:54,765 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:41:54,765 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945802375]
[2023-11-19 07:41:54,766 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-11-19 07:41:54,766 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [793363167]
[2023-11-19 07:41:54,766 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [793363167] provided 0 perfect and 2 imperfect interpolant sequences
[2023-11-19 07:41:54,767 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-11-19 07:41:54,768 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9
[2023-11-19 07:41:54,768 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768540499]
[2023-11-19 07:41:54,769 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-11-19 07:41:54,774 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2023-11-19 07:41:54,774 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:41:54,777 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2023-11-19 07:41:54,778 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72
[2023-11-19 07:41:54,781 INFO  L87              Difference]: Start difference. First operand 2738 states and 4554 transitions. Second operand  has 9 states, 9 states have (on average 223.66666666666666) internal successors, (2013), 9 states have internal predecessors, (2013), 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)
[2023-11-19 07:42:00,082 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 07:42:00,083 INFO  L93              Difference]: Finished difference Result 14323 states and 23691 transitions.
[2023-11-19 07:42:00,083 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2023-11-19 07:42:00,084 INFO  L78                 Accepts]: Start accepts. Automaton has  has 9 states, 9 states have (on average 223.66666666666666) internal successors, (2013), 9 states have internal predecessors, (2013), 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 1830
[2023-11-19 07:42:00,089 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 07:42:00,128 INFO  L225             Difference]: With dead ends: 14323
[2023-11-19 07:42:00,129 INFO  L226             Difference]: Without dead ends: 7519
[2023-11-19 07:42:00,138 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3664 GetRequests, 3651 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210
[2023-11-19 07:42:00,139 INFO  L413           NwaCegarLoop]: 8251 mSDtfsCounter, 37005 mSDsluCounter, 26959 mSDsCounter, 0 mSdLazyCounter, 3055 mSolverCounterSat, 448 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37005 SdHoareTripleChecker+Valid, 35210 SdHoareTripleChecker+Invalid, 3503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 448 IncrementalHoareTripleChecker+Valid, 3055 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time
[2023-11-19 07:42:00,140 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [37005 Valid, 35210 Invalid, 3503 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [448 Valid, 3055 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time]
[2023-11-19 07:42:00,152 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7519 states.
[2023-11-19 07:42:00,233 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7519 to 2740.
[2023-11-19 07:42:00,240 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2740 states, 2739 states have (on average 1.6633807959109164) internal successors, (4556), 2739 states have internal predecessors, (4556), 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)
[2023-11-19 07:42:00,252 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2740 states to 2740 states and 4556 transitions.
[2023-11-19 07:42:00,253 INFO  L78                 Accepts]: Start accepts. Automaton has 2740 states and 4556 transitions. Word has length 1830
[2023-11-19 07:42:00,254 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-19 07:42:00,254 INFO  L495      AbstractCegarLoop]: Abstraction has 2740 states and 4556 transitions.
[2023-11-19 07:42:00,255 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 9 states, 9 states have (on average 223.66666666666666) internal successors, (2013), 9 states have internal predecessors, (2013), 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)
[2023-11-19 07:42:00,256 INFO  L276                IsEmpty]: Start isEmpty. Operand 2740 states and 4556 transitions.
[2023-11-19 07:42:00,286 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1832
[2023-11-19 07:42:00,286 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-19 07:42:00,288 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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[2023-11-19 07:42:00,358 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e38acfb-128f-4478-88c9-65a3771d26d3/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2023-11-19 07:42:00,506 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e38acfb-128f-4478-88c9-65a3771d26d3/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5
[2023-11-19 07:42:00,506 INFO  L420      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-19 07:42:00,507 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:42:00,508 INFO  L85        PathProgramCache]: Analyzing trace with hash 407378853, now seen corresponding path program 1 times
[2023-11-19 07:42:00,508 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:42:00,508 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833680001]
[2023-11-19 07:42:00,508 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:42:00,508 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:42:00,915 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-11-19 07:42:00,915 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1252466111]
[2023-11-19 07:42:00,916 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:42:00,916 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 07:42:00,916 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e38acfb-128f-4478-88c9-65a3771d26d3/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:42:00,921 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e38acfb-128f-4478-88c9-65a3771d26d3/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-19 07:42:00,949 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e38acfb-128f-4478-88c9-65a3771d26d3/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process