./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/neural-networks/tanh_w4_r1_case_0_unsafe.c-amalgamation.i --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version a0165632
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_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/neural-networks/tanh_w4_r1_case_0_unsafe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX --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 32bit --witnessprinter.graph.data.programhash 2ed83590535b938167dd27e180a37597ec687476af72da8b559de80c3fd01fc6
--- Real Ultimate output ---
This is Ultimate 0.2.5-dev-a016563
[2024-11-08 17:18:50,769 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-08 17:18:50,886 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-08 17:18:50,892 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-08 17:18:50,894 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-08 17:18:50,940 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-08 17:18:50,941 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-08 17:18:50,942 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-08 17:18:50,943 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-08 17:18:50,944 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-08 17:18:50,948 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-08 17:18:50,948 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-08 17:18:50,949 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-08 17:18:50,950 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-08 17:18:50,950 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-08 17:18:50,951 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-08 17:18:50,951 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-08 17:18:50,951 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-08 17:18:50,952 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-08 17:18:50,952 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-08 17:18:50,953 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-08 17:18:50,957 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-08 17:18:50,957 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-08 17:18:50,957 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-08 17:18:50,958 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-08 17:18:50,958 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-08 17:18:50,958 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-08 17:18:50,959 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-08 17:18:50,959 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-08 17:18:50,959 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-08 17:18:50,960 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-08 17:18:50,960 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-08 17:18:50,962 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 17:18:50,964 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-08 17:18:50,964 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-08 17:18:50,965 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-08 17:18:50,965 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-08 17:18:50,966 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-08 17:18:50,966 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-08 17:18:50,967 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-08 17:18:50,967 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-08 17:18:50,969 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-08 17:18:50,969 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_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/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_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX
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 -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2ed83590535b938167dd27e180a37597ec687476af72da8b559de80c3fd01fc6
[2024-11-08 17:18:51,284 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-08 17:18:51,316 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-08 17:18:51,319 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-08 17:18:51,321 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-08 17:18:51,322 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-08 17:18:51,323 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/neural-networks/tanh_w4_r1_case_0_unsafe.c-amalgamation.i
Unable to find full path for "g++"
[2024-11-08 17:18:53,536 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-08 17:18:53,995 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-08 17:18:53,997 INFO  L180              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/sv-benchmarks/c/neural-networks/tanh_w4_r1_case_0_unsafe.c-amalgamation.i
[2024-11-08 17:18:54,033 INFO  L427              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/data/56c096531/1e39caf41513426b92d2dbeb0d63daa1/FLAG781b7a7eb
[2024-11-08 17:18:54,125 INFO  L435              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/data/56c096531/1e39caf41513426b92d2dbeb0d63daa1
[2024-11-08 17:18:54,131 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-08 17:18:54,133 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-08 17:18:54,136 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-08 17:18:54,136 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-08 17:18:54,146 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-08 17:18:54,147 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:18:54" (1/1) ...
[2024-11-08 17:18:54,149 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20c6b197 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:18:54, skipping insertion in model container
[2024-11-08 17:18:54,149 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:18:54" (1/1) ...
[2024-11-08 17:18:54,259 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-08 17:18:55,734 WARN  L250   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_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/sv-benchmarks/c/neural-networks/tanh_w4_r1_case_0_unsafe.c-amalgamation.i[71397,71410]
[2024-11-08 17:18:56,121 FATAL L?                        ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception:
java.lang.UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fabs
	at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:627)
	at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleUnaryFloatFunction(StandardFunctionHandler.java:3125)
	at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:255)
	at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1625)
	at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:271)
	at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:792)
	at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:286)
	at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2578)
	at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:307)
	at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:792)
	at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:286)
	at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:792)
	at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:286)
	at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1520)
	at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:224)
	at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleCompoundStatement(CHandler.java:1167)
	at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1150)
	at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:236)
	at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleLoopBody(CHandler.java:3634)
	at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1577)
	at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:227)
	at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleCompoundStatement(CHandler.java:1167)
	at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1150)
	at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:236)
	at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:388)
	at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1652)
	at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:159)
	at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3539)
	at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2522)
	at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:642)
	at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:135)
	at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:189)
	at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:116)
	at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.<init>(MainTranslator.java:94)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:145)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63)
[2024-11-08 17:18:56,134 INFO  L158              Benchmark]: Toolchain (without parser) took 1997.04ms. Allocated memory is still 165.7MB. Free memory was 123.1MB in the beginning and 90.6MB in the end (delta: 32.4MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB.
[2024-11-08 17:18:56,135 INFO  L158              Benchmark]: CDTParser took 0.36ms. Allocated memory is still 127.9MB. Free memory is still 72.0MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-08 17:18:56,136 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 1993.35ms. Allocated memory is still 165.7MB. Free memory was 122.6MB in the beginning and 90.6MB in the end (delta: 31.9MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB.
[2024-11-08 17:18:56,137 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.36ms. Allocated memory is still 127.9MB. Free memory is still 72.0MB. There was no memory consumed. Max. memory is 16.1GB.
 * CACSL2BoogieTranslator took 1993.35ms. Allocated memory is still 165.7MB. Free memory was 122.6MB in the beginning and 90.6MB in the end (delta: 31.9MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator:
  - ExceptionOrErrorResult: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fabs
    de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fabs: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:627)
RESULT: Ultimate could not prove your program: Toolchain returned no result.
Received shutdown request...
--- End real Ultimate output ---

Execution finished normally
Using bit-precise analysis
Retrying with bit-precise analysis

### Bit-precise run ###
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_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/neural-networks/tanh_w4_r1_case_0_unsafe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX --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 32bit --witnessprinter.graph.data.programhash 2ed83590535b938167dd27e180a37597ec687476af72da8b559de80c3fd01fc6
--- Real Ultimate output ---
This is Ultimate 0.2.5-dev-a016563
[2024-11-08 17:18:58,868 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-08 17:18:58,989 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2024-11-08 17:18:58,996 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-08 17:18:58,999 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-08 17:18:59,053 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-08 17:18:59,054 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-08 17:18:59,054 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-08 17:18:59,055 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-08 17:18:59,056 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-08 17:18:59,056 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-08 17:18:59,057 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-08 17:18:59,059 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-08 17:18:59,062 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-08 17:18:59,063 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-08 17:18:59,063 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-08 17:18:59,064 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-08 17:18:59,064 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-08 17:18:59,065 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-08 17:18:59,065 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-08 17:18:59,070 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-08 17:18:59,070 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-08 17:18:59,071 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-08 17:18:59,071 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-08 17:18:59,072 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-08 17:18:59,072 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-08 17:18:59,072 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-08 17:18:59,073 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-08 17:18:59,073 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-08 17:18:59,075 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-08 17:18:59,076 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-08 17:18:59,077 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-08 17:18:59,078 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-08 17:18:59,079 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-08 17:18:59,079 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 17:18:59,080 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-08 17:18:59,080 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-08 17:18:59,080 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-08 17:18:59,081 INFO  L153        SettingsManager]:  * Trace refinement strategy=FOX
[2024-11-08 17:18:59,082 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-08 17:18:59,082 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-08 17:18:59,083 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-08 17:18:59,083 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-08 17:18:59,084 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-08 17:18:59,105 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_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/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_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX
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 -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2ed83590535b938167dd27e180a37597ec687476af72da8b559de80c3fd01fc6
[2024-11-08 17:18:59,596 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-08 17:18:59,633 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-08 17:18:59,636 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-08 17:18:59,638 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-08 17:18:59,639 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-08 17:18:59,640 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/neural-networks/tanh_w4_r1_case_0_unsafe.c-amalgamation.i
Unable to find full path for "g++"
[2024-11-08 17:19:01,941 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-08 17:19:02,561 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-08 17:19:02,564 INFO  L180              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/sv-benchmarks/c/neural-networks/tanh_w4_r1_case_0_unsafe.c-amalgamation.i
[2024-11-08 17:19:02,610 INFO  L427              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/data/00d909b6d/a574b3ff96544c93aa25ce24feb24c94/FLAG1c9de31f6
[2024-11-08 17:19:02,634 INFO  L435              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/data/00d909b6d/a574b3ff96544c93aa25ce24feb24c94
[2024-11-08 17:19:02,637 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-08 17:19:02,640 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-08 17:19:02,642 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-08 17:19:02,643 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-08 17:19:02,650 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-08 17:19:02,651 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:19:02" (1/1) ...
[2024-11-08 17:19:02,653 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@718a9b7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:19:02, skipping insertion in model container
[2024-11-08 17:19:02,653 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:19:02" (1/1) ...
[2024-11-08 17:19:02,765 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-08 17:19:04,339 WARN  L250   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_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/sv-benchmarks/c/neural-networks/tanh_w4_r1_case_0_unsafe.c-amalgamation.i[71397,71410]
[2024-11-08 17:19:04,785 WARN  L1072              CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-08 17:19:04,915 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-08 17:19:04,935 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-08 17:19:05,034 WARN  L250   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_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/sv-benchmarks/c/neural-networks/tanh_w4_r1_case_0_unsafe.c-amalgamation.i[71397,71410]
[2024-11-08 17:19:05,246 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-08 17:19:05,675 INFO  L204         MainTranslator]: Completed translation
[2024-11-08 17:19:05,675 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:19:05 WrapperNode
[2024-11-08 17:19:05,676 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-08 17:19:05,677 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-08 17:19:05,677 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-08 17:19:05,677 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-08 17:19:05,687 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:19:05" (1/1) ...
[2024-11-08 17:19:05,774 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:19:05" (1/1) ...
[2024-11-08 17:19:05,825 INFO  L138                Inliner]: procedures = 780, calls = 705, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 394
[2024-11-08 17:19:05,830 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-08 17:19:05,831 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-08 17:19:05,834 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-08 17:19:05,835 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-08 17:19:05,847 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:19:05" (1/1) ...
[2024-11-08 17:19:05,848 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:19:05" (1/1) ...
[2024-11-08 17:19:05,863 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:19:05" (1/1) ...
[2024-11-08 17:19:05,908 INFO  L175           MemorySlicer]: Split 169 memory accesses to 12 slices as follows [2, 43, 7, 2, 8, 12, 35, 9, 10, 19, 11, 11]. 25 percent of accesses are in the largest equivalence class. The 75 initializations are split as follows [2, 12, 7, 2, 4, 8, 0, 8, 8, 8, 8, 8]. The 56 writes are split as follows [0, 14, 0, 0, 3, 0, 34, 0, 0, 5, 0, 0].
[2024-11-08 17:19:05,908 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:19:05" (1/1) ...
[2024-11-08 17:19:05,908 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:19:05" (1/1) ...
[2024-11-08 17:19:05,943 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:19:05" (1/1) ...
[2024-11-08 17:19:05,954 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:19:05" (1/1) ...
[2024-11-08 17:19:05,975 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:19:05" (1/1) ...
[2024-11-08 17:19:05,988 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:19:05" (1/1) ...
[2024-11-08 17:19:06,014 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-08 17:19:06,015 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-08 17:19:06,015 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-08 17:19:06,015 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-08 17:19:06,016 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:19:05" (1/1) ...
[2024-11-08 17:19:06,028 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 17:19:06,045 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:19:06,063 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-08 17:19:06,071 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-08 17:19:06,108 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0
[2024-11-08 17:19:06,108 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1
[2024-11-08 17:19:06,109 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2
[2024-11-08 17:19:06,109 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3
[2024-11-08 17:19:06,111 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4
[2024-11-08 17:19:06,112 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#5
[2024-11-08 17:19:06,112 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#6
[2024-11-08 17:19:06,112 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#7
[2024-11-08 17:19:06,112 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#8
[2024-11-08 17:19:06,112 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#9
[2024-11-08 17:19:06,113 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#10
[2024-11-08 17:19:06,113 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#11
[2024-11-08 17:19:06,113 INFO  L130     BoogieDeclarations]: Found specification of procedure k2c_simpleRNN
[2024-11-08 17:19:06,113 INFO  L138     BoogieDeclarations]: Found implementation of procedure k2c_simpleRNN
[2024-11-08 17:19:06,113 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#0
[2024-11-08 17:19:06,114 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#1
[2024-11-08 17:19:06,114 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#2
[2024-11-08 17:19:06,114 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#3
[2024-11-08 17:19:06,114 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#4
[2024-11-08 17:19:06,114 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#5
[2024-11-08 17:19:06,114 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#6
[2024-11-08 17:19:06,114 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#7
[2024-11-08 17:19:06,114 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#8
[2024-11-08 17:19:06,115 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#9
[2024-11-08 17:19:06,115 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#10
[2024-11-08 17:19:06,115 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#11
[2024-11-08 17:19:06,115 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-08 17:19:06,115 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-08 17:19:06,115 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-08 17:19:06,115 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0
[2024-11-08 17:19:06,115 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1
[2024-11-08 17:19:06,115 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2
[2024-11-08 17:19:06,116 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3
[2024-11-08 17:19:06,116 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4
[2024-11-08 17:19:06,116 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5
[2024-11-08 17:19:06,116 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#6
[2024-11-08 17:19:06,116 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#7
[2024-11-08 17:19:06,116 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#8
[2024-11-08 17:19:06,119 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#9
[2024-11-08 17:19:06,119 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#10
[2024-11-08 17:19:06,119 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#11
[2024-11-08 17:19:06,119 INFO  L138     BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0
[2024-11-08 17:19:06,119 INFO  L138     BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1
[2024-11-08 17:19:06,120 INFO  L138     BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2
[2024-11-08 17:19:06,120 INFO  L138     BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3
[2024-11-08 17:19:06,120 INFO  L138     BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4
[2024-11-08 17:19:06,121 INFO  L138     BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5
[2024-11-08 17:19:06,121 INFO  L138     BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#6
[2024-11-08 17:19:06,121 INFO  L138     BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#7
[2024-11-08 17:19:06,121 INFO  L138     BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#8
[2024-11-08 17:19:06,121 INFO  L138     BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#9
[2024-11-08 17:19:06,122 INFO  L138     BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#10
[2024-11-08 17:19:06,123 INFO  L138     BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#11
[2024-11-08 17:19:06,123 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2024-11-08 17:19:06,123 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$#0
[2024-11-08 17:19:06,123 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$#1
[2024-11-08 17:19:06,124 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$#2
[2024-11-08 17:19:06,124 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$#3
[2024-11-08 17:19:06,124 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$#4
[2024-11-08 17:19:06,125 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$#5
[2024-11-08 17:19:06,125 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$#6
[2024-11-08 17:19:06,126 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$#7
[2024-11-08 17:19:06,126 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$#8
[2024-11-08 17:19:06,126 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$#9
[2024-11-08 17:19:06,127 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$#10
[2024-11-08 17:19:06,127 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$#11
[2024-11-08 17:19:06,127 INFO  L130     BoogieDeclarations]: Found specification of procedure k2c_affine_matmul
[2024-11-08 17:19:06,127 INFO  L138     BoogieDeclarations]: Found implementation of procedure k2c_affine_matmul
[2024-11-08 17:19:06,127 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_ULONG~TO~VOID
[2024-11-08 17:19:06,128 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_ULONG~TO~VOID
[2024-11-08 17:19:06,128 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-11-08 17:19:06,128 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-08 17:19:06,128 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1
[2024-11-08 17:19:06,128 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2
[2024-11-08 17:19:06,129 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3
[2024-11-08 17:19:06,129 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4
[2024-11-08 17:19:06,129 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5
[2024-11-08 17:19:06,129 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6
[2024-11-08 17:19:06,129 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7
[2024-11-08 17:19:06,129 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8
[2024-11-08 17:19:06,129 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9
[2024-11-08 17:19:06,130 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10
[2024-11-08 17:19:06,131 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11
[2024-11-08 17:19:06,131 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0
[2024-11-08 17:19:06,131 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1
[2024-11-08 17:19:06,131 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2
[2024-11-08 17:19:06,133 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3
[2024-11-08 17:19:06,133 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#4
[2024-11-08 17:19:06,133 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#5
[2024-11-08 17:19:06,133 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#6
[2024-11-08 17:19:06,134 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#7
[2024-11-08 17:19:06,134 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#8
[2024-11-08 17:19:06,134 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#9
[2024-11-08 17:19:06,134 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#10
[2024-11-08 17:19:06,134 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#11
[2024-11-08 17:19:06,134 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#0
[2024-11-08 17:19:06,134 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#1
[2024-11-08 17:19:06,134 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#2
[2024-11-08 17:19:06,135 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#3
[2024-11-08 17:19:06,135 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#4
[2024-11-08 17:19:06,135 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#5
[2024-11-08 17:19:06,135 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#6
[2024-11-08 17:19:06,135 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#7
[2024-11-08 17:19:06,135 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#8
[2024-11-08 17:19:06,135 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#9
[2024-11-08 17:19:06,137 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#10
[2024-11-08 17:19:06,137 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#11
[2024-11-08 17:19:06,137 INFO  L130     BoogieDeclarations]: Found specification of procedure k2c_simpleRNNcell
[2024-11-08 17:19:06,137 INFO  L138     BoogieDeclarations]: Found implementation of procedure k2c_simpleRNNcell
[2024-11-08 17:19:06,137 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0
[2024-11-08 17:19:06,137 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1
[2024-11-08 17:19:06,138 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2
[2024-11-08 17:19:06,138 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3
[2024-11-08 17:19:06,138 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4
[2024-11-08 17:19:06,138 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5
[2024-11-08 17:19:06,138 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6
[2024-11-08 17:19:06,138 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7
[2024-11-08 17:19:06,139 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#8
[2024-11-08 17:19:06,139 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#9
[2024-11-08 17:19:06,139 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#10
[2024-11-08 17:19:06,139 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#11
[2024-11-08 17:19:06,139 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0
[2024-11-08 17:19:06,139 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1
[2024-11-08 17:19:06,140 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2
[2024-11-08 17:19:06,160 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3
[2024-11-08 17:19:06,160 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4
[2024-11-08 17:19:06,160 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#5
[2024-11-08 17:19:06,160 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#6
[2024-11-08 17:19:06,160 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#7
[2024-11-08 17:19:06,160 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#8
[2024-11-08 17:19:06,160 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#9
[2024-11-08 17:19:06,161 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#10
[2024-11-08 17:19:06,161 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#11
[2024-11-08 17:19:06,161 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0
[2024-11-08 17:19:06,161 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1
[2024-11-08 17:19:06,161 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2
[2024-11-08 17:19:06,161 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3
[2024-11-08 17:19:06,161 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4
[2024-11-08 17:19:06,161 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5
[2024-11-08 17:19:06,161 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6
[2024-11-08 17:19:06,161 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7
[2024-11-08 17:19:06,162 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8
[2024-11-08 17:19:06,162 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9
[2024-11-08 17:19:06,162 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10
[2024-11-08 17:19:06,162 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11
[2024-11-08 17:19:06,676 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-08 17:19:06,679 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-08 17:19:18,472 INFO  L?                        ?]: Removed 186 outVars from TransFormulas that were not future-live.
[2024-11-08 17:19:18,472 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-08 17:19:18,495 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-08 17:19:18,497 INFO  L316             CfgBuilder]: Removed 0 assume(true) statements.
[2024-11-08 17:19:18,497 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:19:18 BoogieIcfgContainer
[2024-11-08 17:19:18,498 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-08 17:19:18,500 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-08 17:19:18,502 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-08 17:19:18,507 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-08 17:19:18,507 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:19:02" (1/3) ...
[2024-11-08 17:19:18,508 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57acfacc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:19:18, skipping insertion in model container
[2024-11-08 17:19:18,509 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:19:05" (2/3) ...
[2024-11-08 17:19:18,510 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57acfacc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:19:18, skipping insertion in model container
[2024-11-08 17:19:18,510 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:19:18" (3/3) ...
[2024-11-08 17:19:18,512 INFO  L112   eAbstractionObserver]: Analyzing ICFG tanh_w4_r1_case_0_unsafe.c-amalgamation.i
[2024-11-08 17:19:18,536 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-08 17:19:18,536 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-08 17:19:18,642 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-08 17:19:18,647 INFO  L333      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=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;@1de84522, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-08 17:19:18,648 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-08 17:19:18,652 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 133 states, 119 states have (on average 1.5126050420168067) internal successors, (180), 120 states have internal predecessors, (180), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7)
[2024-11-08 17:19:18,662 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2024-11-08 17:19:18,662 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 17:19:18,663 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:19:18,664 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 17:19:18,670 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:19:18,670 INFO  L85        PathProgramCache]: Analyzing trace with hash 2004740170, now seen corresponding path program 1 times
[2024-11-08 17:19:18,687 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 17:19:18,687 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1221429861]
[2024-11-08 17:19:18,688 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:19:18,688 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-08 17:19:18,688 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/mathsat
[2024-11-08 17:19:18,692 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2024-11-08 17:19:18,694 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process
[2024-11-08 17:19:19,839 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:19:19,863 INFO  L255         TraceCheckSpWp]: Trace formula consists of 661 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-08 17:19:19,868 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:19:19,882 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:19:19,883 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 17:19:19,883 INFO  L136   FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 17:19:19,884 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1221429861]
[2024-11-08 17:19:19,885 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1221429861] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:19:19,885 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:19:19,885 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 17:19:19,887 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226979630]
[2024-11-08 17:19:19,888 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:19:19,893 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-08 17:19:19,894 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 17:19:19,921 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-08 17:19:19,922 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-08 17:19:19,926 INFO  L87              Difference]: Start difference. First operand  has 133 states, 119 states have (on average 1.5126050420168067) internal successors, (180), 120 states have internal predecessors, (180), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand  has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 17:19:19,984 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:19:19,985 INFO  L93              Difference]: Finished difference Result 262 states and 382 transitions.
[2024-11-08 17:19:19,986 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-08 17:19:19,988 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17
[2024-11-08 17:19:19,988 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:19:20,000 INFO  L225             Difference]: With dead ends: 262
[2024-11-08 17:19:20,000 INFO  L226             Difference]: Without dead ends: 129
[2024-11-08 17:19:20,007 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-08 17:19:20,012 INFO  L432           NwaCegarLoop]: 192 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 17:19:20,013 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 17:19:20,034 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 129 states.
[2024-11-08 17:19:20,060 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129.
[2024-11-08 17:19:20,062 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 129 states, 116 states have (on average 1.5) internal successors, (174), 116 states have internal predecessors, (174), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7)
[2024-11-08 17:19:20,064 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 188 transitions.
[2024-11-08 17:19:20,067 INFO  L78                 Accepts]: Start accepts. Automaton has 129 states and 188 transitions. Word has length 17
[2024-11-08 17:19:20,067 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:19:20,069 INFO  L471      AbstractCegarLoop]: Abstraction has 129 states and 188 transitions.
[2024-11-08 17:19:20,070 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 17:19:20,070 INFO  L276                IsEmpty]: Start isEmpty. Operand 129 states and 188 transitions.
[2024-11-08 17:19:20,071 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2024-11-08 17:19:20,071 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 17:19:20,071 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:19:20,099 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0
[2024-11-08 17:19:20,284 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-08 17:19:20,285 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 17:19:20,285 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:19:20,286 INFO  L85        PathProgramCache]: Analyzing trace with hash 993622920, now seen corresponding path program 1 times
[2024-11-08 17:19:20,287 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 17:19:20,288 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1561427913]
[2024-11-08 17:19:20,288 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:19:20,288 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-08 17:19:20,289 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/mathsat
[2024-11-08 17:19:20,292 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2024-11-08 17:19:20,306 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process
[2024-11-08 17:19:21,384 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:19:21,410 INFO  L255         TraceCheckSpWp]: Trace formula consists of 661 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-08 17:19:21,412 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:19:21,967 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:19:21,968 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 17:19:21,968 INFO  L136   FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 17:19:21,968 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1561427913]
[2024-11-08 17:19:21,969 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1561427913] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:19:21,969 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:19:21,969 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-08 17:19:21,969 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120626935]
[2024-11-08 17:19:21,970 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:19:21,971 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-08 17:19:21,971 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 17:19:21,972 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-08 17:19:21,973 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-08 17:19:21,973 INFO  L87              Difference]: Start difference. First operand 129 states and 188 transitions. Second operand  has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 17:19:22,301 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:19:22,301 INFO  L93              Difference]: Finished difference Result 140 states and 201 transitions.
[2024-11-08 17:19:22,307 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-08 17:19:22,307 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17
[2024-11-08 17:19:22,308 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:19:22,309 INFO  L225             Difference]: With dead ends: 140
[2024-11-08 17:19:22,309 INFO  L226             Difference]: Without dead ends: 119
[2024-11-08 17:19:22,310 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-08 17:19:22,315 INFO  L432           NwaCegarLoop]: 186 mSDtfsCounter, 19 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 720 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-08 17:19:22,315 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 720 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-08 17:19:22,316 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 119 states.
[2024-11-08 17:19:22,330 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119.
[2024-11-08 17:19:22,331 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 119 states, 107 states have (on average 1.485981308411215) internal successors, (159), 107 states have internal predecessors, (159), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2024-11-08 17:19:22,333 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 171 transitions.
[2024-11-08 17:19:22,333 INFO  L78                 Accepts]: Start accepts. Automaton has 119 states and 171 transitions. Word has length 17
[2024-11-08 17:19:22,334 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:19:22,334 INFO  L471      AbstractCegarLoop]: Abstraction has 119 states and 171 transitions.
[2024-11-08 17:19:22,334 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 17:19:22,334 INFO  L276                IsEmpty]: Start isEmpty. Operand 119 states and 171 transitions.
[2024-11-08 17:19:22,335 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2024-11-08 17:19:22,335 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 17:19:22,336 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:19:22,352 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0
[2024-11-08 17:19:22,536 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-08 17:19:22,540 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 17:19:22,541 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:19:22,541 INFO  L85        PathProgramCache]: Analyzing trace with hash -79274909, now seen corresponding path program 1 times
[2024-11-08 17:19:22,542 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 17:19:22,542 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1169057604]
[2024-11-08 17:19:22,543 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:19:22,543 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-08 17:19:22,543 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/mathsat
[2024-11-08 17:19:22,553 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2024-11-08 17:19:22,560 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process
[2024-11-08 17:19:23,741 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:19:23,769 INFO  L255         TraceCheckSpWp]: Trace formula consists of 661 conjuncts, 12 conjuncts are in the unsatisfiable core
[2024-11-08 17:19:23,772 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:19:25,641 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:19:25,641 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 17:19:25,642 INFO  L136   FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 17:19:25,643 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1169057604]
[2024-11-08 17:19:25,643 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1169057604] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:19:25,645 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:19:25,646 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-11-08 17:19:25,646 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333580089]
[2024-11-08 17:19:25,646 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:19:25,647 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-08 17:19:25,647 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 17:19:25,648 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-08 17:19:25,648 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2024-11-08 17:19:25,648 INFO  L87              Difference]: Start difference. First operand 119 states and 171 transitions. Second operand  has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 17:19:31,494 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2024-11-08 17:19:35,605 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:19:39,704 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:19:43,710 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2024-11-08 17:19:47,776 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:19:51,423 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:19:51,423 INFO  L93              Difference]: Finished difference Result 140 states and 200 transitions.
[2024-11-08 17:19:51,426 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2024-11-08 17:19:51,426 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17
[2024-11-08 17:19:51,427 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:19:51,428 INFO  L225             Difference]: With dead ends: 140
[2024-11-08 17:19:51,428 INFO  L226             Difference]: Without dead ends: 128
[2024-11-08 17:19:51,429 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2024-11-08 17:19:51,431 INFO  L432           NwaCegarLoop]: 161 mSDtfsCounter, 177 mSDsluCounter, 736 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 3 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 897 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.7s IncrementalHoareTripleChecker+Time
[2024-11-08 17:19:51,432 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 897 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 103 Invalid, 5 Unknown, 0 Unchecked, 25.7s Time]
[2024-11-08 17:19:51,433 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 128 states.
[2024-11-08 17:19:51,453 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 121.
[2024-11-08 17:19:51,454 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 121 states, 109 states have (on average 1.4770642201834863) internal successors, (161), 109 states have internal predecessors, (161), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2024-11-08 17:19:51,455 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 173 transitions.
[2024-11-08 17:19:51,456 INFO  L78                 Accepts]: Start accepts. Automaton has 121 states and 173 transitions. Word has length 17
[2024-11-08 17:19:51,456 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:19:51,456 INFO  L471      AbstractCegarLoop]: Abstraction has 121 states and 173 transitions.
[2024-11-08 17:19:51,457 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 17:19:51,457 INFO  L276                IsEmpty]: Start isEmpty. Operand 121 states and 173 transitions.
[2024-11-08 17:19:51,459 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 64
[2024-11-08 17:19:51,459 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 17:19:51,460 INFO  L215           NwaCegarLoop]: trace histogram [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]
[2024-11-08 17:19:51,479 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0
[2024-11-08 17:19:51,660 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-08 17:19:51,661 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 17:19:51,661 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:19:51,661 INFO  L85        PathProgramCache]: Analyzing trace with hash -1939869459, now seen corresponding path program 1 times
[2024-11-08 17:19:51,662 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 17:19:51,663 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [358936332]
[2024-11-08 17:19:51,663 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:19:51,663 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-08 17:19:51,663 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/mathsat
[2024-11-08 17:19:51,669 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2024-11-08 17:19:51,672 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process
[2024-11-08 17:19:53,090 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:19:53,122 INFO  L255         TraceCheckSpWp]: Trace formula consists of 851 conjuncts, 20 conjuncts are in the unsatisfiable core
[2024-11-08 17:19:53,128 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:20:07,402 INFO  L134       CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:20:07,403 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 17:20:19,852 INFO  L136   FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 17:20:19,852 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [358936332]
[2024-11-08 17:20:19,853 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [358936332] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 17:20:19,853 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1089054300]
[2024-11-08 17:20:19,853 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:20:19,853 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:20:19,854 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:20:19,856 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:20:19,857 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-11-08 17:20:20,654 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:20:20,671 INFO  L255         TraceCheckSpWp]: Trace formula consists of 851 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-08 17:20:20,674 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:20:21,601 INFO  L134       CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked.
[2024-11-08 17:20:21,601 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 17:20:21,602 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1089054300] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:20:21,602 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-08 17:20:21,602 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [13] total 14
[2024-11-08 17:20:21,602 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386313871]
[2024-11-08 17:20:21,603 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:20:21,603 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 17:20:21,603 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 17:20:21,604 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 17:20:21,604 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306
[2024-11-08 17:20:21,605 INFO  L87              Difference]: Start difference. First operand 121 states and 173 transitions. Second operand  has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6)
[2024-11-08 17:20:21,809 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:20:21,810 INFO  L93              Difference]: Finished difference Result 240 states and 348 transitions.
[2024-11-08 17:20:21,811 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-08 17:20:21,811 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 63
[2024-11-08 17:20:21,811 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:20:21,813 INFO  L225             Difference]: With dead ends: 240
[2024-11-08 17:20:21,813 INFO  L226             Difference]: Without dead ends: 129
[2024-11-08 17:20:21,814 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 125 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 9.6s TimeCoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306
[2024-11-08 17:20:21,816 INFO  L432           NwaCegarLoop]: 175 mSDtfsCounter, 4 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-08 17:20:21,817 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 342 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-08 17:20:21,818 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 129 states.
[2024-11-08 17:20:21,832 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129.
[2024-11-08 17:20:21,833 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 129 states, 116 states have (on average 1.4655172413793103) internal successors, (170), 116 states have internal predecessors, (170), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7)
[2024-11-08 17:20:21,836 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 184 transitions.
[2024-11-08 17:20:21,837 INFO  L78                 Accepts]: Start accepts. Automaton has 129 states and 184 transitions. Word has length 63
[2024-11-08 17:20:21,837 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:20:21,838 INFO  L471      AbstractCegarLoop]: Abstraction has 129 states and 184 transitions.
[2024-11-08 17:20:21,838 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6)
[2024-11-08 17:20:21,838 INFO  L276                IsEmpty]: Start isEmpty. Operand 129 states and 184 transitions.
[2024-11-08 17:20:21,840 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 66
[2024-11-08 17:20:21,841 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 17:20:21,841 INFO  L215           NwaCegarLoop]: trace histogram [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]
[2024-11-08 17:20:21,858 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0
[2024-11-08 17:20:22,061 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0
[2024-11-08 17:20:22,242 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:20:22,242 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 17:20:22,243 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:20:22,243 INFO  L85        PathProgramCache]: Analyzing trace with hash -1143577760, now seen corresponding path program 1 times
[2024-11-08 17:20:22,244 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 17:20:22,244 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [983086312]
[2024-11-08 17:20:22,244 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:20:22,244 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-08 17:20:22,244 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/mathsat
[2024-11-08 17:20:22,248 INFO  L229       MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2024-11-08 17:20:22,255 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process
[2024-11-08 17:20:23,533 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:20:23,566 INFO  L255         TraceCheckSpWp]: Trace formula consists of 854 conjuncts, 20 conjuncts are in the unsatisfiable core
[2024-11-08 17:20:23,570 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:20:37,190 INFO  L134       CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:20:37,190 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 17:20:49,293 INFO  L136   FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 17:20:49,294 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [983086312]
[2024-11-08 17:20:49,294 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [983086312] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 17:20:49,294 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [997397187]
[2024-11-08 17:20:49,294 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:20:49,295 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:20:49,295 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:20:49,297 INFO  L229       MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:20:49,300 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2024-11-08 17:20:50,077 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:20:50,089 INFO  L255         TraceCheckSpWp]: Trace formula consists of 854 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-11-08 17:20:50,092 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:20:59,115 INFO  L134       CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked.
[2024-11-08 17:20:59,116 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 17:21:11,883 INFO  L134       CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked.
[2024-11-08 17:21:11,883 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [997397187] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-08 17:21:11,883 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences.
[2024-11-08 17:21:11,884 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [13, 7] total 25
[2024-11-08 17:21:11,884 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704392141]
[2024-11-08 17:21:11,884 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:21:11,885 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-08 17:21:11,885 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 17:21:11,886 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-08 17:21:11,887 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=719, Unknown=0, NotChecked=0, Total=812
[2024-11-08 17:21:11,887 INFO  L87              Difference]: Start difference. First operand 129 states and 184 transitions. Second operand  has 8 states, 8 states have (on average 5.375) internal successors, (43), 8 states have internal predecessors, (43), 4 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6)
[2024-11-08 17:21:16,599 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:21:16,599 INFO  L93              Difference]: Finished difference Result 166 states and 237 transitions.
[2024-11-08 17:21:16,602 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2024-11-08 17:21:16,602 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 5.375) internal successors, (43), 8 states have internal predecessors, (43), 4 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) Word has length 65
[2024-11-08 17:21:16,603 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:21:16,604 INFO  L225             Difference]: With dead ends: 166
[2024-11-08 17:21:16,604 INFO  L226             Difference]: Without dead ends: 125
[2024-11-08 17:21:16,605 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 184 SyntacticMatches, 3 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 368 ImplicationChecksByTransitivity, 19.6s TimeCoverageRelationStatistics Valid=124, Invalid=998, Unknown=0, NotChecked=0, Total=1122
[2024-11-08 17:21:16,606 INFO  L432           NwaCegarLoop]: 167 mSDtfsCounter, 248 mSDsluCounter, 450 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 617 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time
[2024-11-08 17:21:16,607 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 617 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time]
[2024-11-08 17:21:16,608 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 125 states.
[2024-11-08 17:21:16,625 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125.
[2024-11-08 17:21:16,626 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 125 states, 112 states have (on average 1.4553571428571428) internal successors, (163), 112 states have internal predecessors, (163), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7)
[2024-11-08 17:21:16,627 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 177 transitions.
[2024-11-08 17:21:16,630 INFO  L78                 Accepts]: Start accepts. Automaton has 125 states and 177 transitions. Word has length 65
[2024-11-08 17:21:16,631 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:21:16,631 INFO  L471      AbstractCegarLoop]: Abstraction has 125 states and 177 transitions.
[2024-11-08 17:21:16,631 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 5.375) internal successors, (43), 8 states have internal predecessors, (43), 4 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6)
[2024-11-08 17:21:16,631 INFO  L276                IsEmpty]: Start isEmpty. Operand 125 states and 177 transitions.
[2024-11-08 17:21:16,633 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 67
[2024-11-08 17:21:16,633 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 17:21:16,634 INFO  L215           NwaCegarLoop]: trace histogram [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]
[2024-11-08 17:21:16,654 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0
[2024-11-08 17:21:16,852 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0
[2024-11-08 17:21:17,034 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:21:17,035 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 17:21:17,035 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:21:17,035 INFO  L85        PathProgramCache]: Analyzing trace with hash -1208502262, now seen corresponding path program 1 times
[2024-11-08 17:21:17,036 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 17:21:17,036 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1175560108]
[2024-11-08 17:21:17,036 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:21:17,036 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-08 17:21:17,036 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/mathsat
[2024-11-08 17:21:17,037 INFO  L229       MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2024-11-08 17:21:17,039 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process
[2024-11-08 17:21:18,136 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:21:18,165 INFO  L255         TraceCheckSpWp]: Trace formula consists of 855 conjuncts, 20 conjuncts are in the unsatisfiable core
[2024-11-08 17:21:18,167 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:21:31,070 INFO  L134       CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:21:31,070 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 17:21:43,145 INFO  L136   FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 17:21:43,145 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1175560108]
[2024-11-08 17:21:43,145 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1175560108] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 17:21:43,145 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [184764990]
[2024-11-08 17:21:43,146 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:21:43,146 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:21:43,146 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:21:43,148 INFO  L229       MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:21:43,162 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process
[2024-11-08 17:21:43,938 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:21:43,949 INFO  L255         TraceCheckSpWp]: Trace formula consists of 855 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-11-08 17:21:43,952 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:21:53,063 INFO  L134       CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked.
[2024-11-08 17:21:53,063 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 17:22:06,191 INFO  L134       CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked.
[2024-11-08 17:22:06,191 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [184764990] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-08 17:22:06,191 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences.
[2024-11-08 17:22:06,192 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [13, 7] total 25
[2024-11-08 17:22:06,192 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086027439]
[2024-11-08 17:22:06,192 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:22:06,192 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-08 17:22:06,192 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 17:22:06,193 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-08 17:22:06,193 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=719, Unknown=0, NotChecked=0, Total=812
[2024-11-08 17:22:06,194 INFO  L87              Difference]: Start difference. First operand 125 states and 177 transitions. Second operand  has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 4 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6)
[2024-11-08 17:22:11,703 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:22:11,703 INFO  L93              Difference]: Finished difference Result 162 states and 230 transitions.
[2024-11-08 17:22:11,706 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2024-11-08 17:22:11,706 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 4 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) Word has length 66
[2024-11-08 17:22:11,707 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:22:11,708 INFO  L225             Difference]: With dead ends: 162
[2024-11-08 17:22:11,708 INFO  L226             Difference]: Without dead ends: 121
[2024-11-08 17:22:11,709 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 187 SyntacticMatches, 3 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 368 ImplicationChecksByTransitivity, 19.5s TimeCoverageRelationStatistics Valid=124, Invalid=998, Unknown=0, NotChecked=0, Total=1122
[2024-11-08 17:22:11,710 INFO  L432           NwaCegarLoop]: 160 mSDtfsCounter, 227 mSDsluCounter, 696 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 856 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time
[2024-11-08 17:22:11,710 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 856 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time]
[2024-11-08 17:22:11,712 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 121 states.
[2024-11-08 17:22:11,729 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121.
[2024-11-08 17:22:11,729 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 121 states, 108 states have (on average 1.4444444444444444) internal successors, (156), 108 states have internal predecessors, (156), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7)
[2024-11-08 17:22:11,730 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 170 transitions.
[2024-11-08 17:22:11,731 INFO  L78                 Accepts]: Start accepts. Automaton has 121 states and 170 transitions. Word has length 66
[2024-11-08 17:22:11,731 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:22:11,732 INFO  L471      AbstractCegarLoop]: Abstraction has 121 states and 170 transitions.
[2024-11-08 17:22:11,732 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 4 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6)
[2024-11-08 17:22:11,732 INFO  L276                IsEmpty]: Start isEmpty. Operand 121 states and 170 transitions.
[2024-11-08 17:22:11,734 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 69
[2024-11-08 17:22:11,734 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 17:22:11,734 INFO  L215           NwaCegarLoop]: trace histogram [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]
[2024-11-08 17:22:11,761 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0
[2024-11-08 17:22:11,948 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0
[2024-11-08 17:22:12,135 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-08 17:22:12,135 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 17:22:12,136 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:22:12,136 INFO  L85        PathProgramCache]: Analyzing trace with hash 1759015112, now seen corresponding path program 1 times
[2024-11-08 17:22:12,137 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 17:22:12,137 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [366541368]
[2024-11-08 17:22:12,137 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:22:12,137 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-08 17:22:12,137 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/mathsat
[2024-11-08 17:22:12,138 INFO  L229       MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2024-11-08 17:22:12,139 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process
[2024-11-08 17:22:13,382 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:22:13,411 INFO  L255         TraceCheckSpWp]: Trace formula consists of 857 conjuncts, 20 conjuncts are in the unsatisfiable core
[2024-11-08 17:22:13,413 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:22:27,071 INFO  L134       CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:22:27,072 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 17:22:38,694 INFO  L136   FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 17:22:38,694 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [366541368]
[2024-11-08 17:22:38,694 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [366541368] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 17:22:38,694 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [366393626]
[2024-11-08 17:22:38,695 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:22:38,695 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:22:38,695 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:22:38,697 INFO  L229       MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:22:38,702 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process
[2024-11-08 17:22:39,492 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:22:39,503 INFO  L255         TraceCheckSpWp]: Trace formula consists of 857 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-11-08 17:22:39,506 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:22:48,487 INFO  L134       CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked.
[2024-11-08 17:22:48,487 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 17:23:00,969 INFO  L134       CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked.
[2024-11-08 17:23:00,970 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [366393626] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-08 17:23:00,970 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences.
[2024-11-08 17:23:00,970 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [13, 7] total 25
[2024-11-08 17:23:00,970 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235055834]
[2024-11-08 17:23:00,970 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:23:00,971 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-08 17:23:00,971 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 17:23:00,971 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-08 17:23:00,972 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=719, Unknown=0, NotChecked=0, Total=812
[2024-11-08 17:23:00,972 INFO  L87              Difference]: Start difference. First operand 121 states and 170 transitions. Second operand  has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 4 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6)
[2024-11-08 17:23:05,973 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:23:05,973 INFO  L93              Difference]: Finished difference Result 158 states and 223 transitions.
[2024-11-08 17:23:05,976 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2024-11-08 17:23:05,976 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 4 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) Word has length 68
[2024-11-08 17:23:05,977 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:23:05,978 INFO  L225             Difference]: With dead ends: 158
[2024-11-08 17:23:05,978 INFO  L226             Difference]: Without dead ends: 117
[2024-11-08 17:23:05,978 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 193 SyntacticMatches, 3 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 368 ImplicationChecksByTransitivity, 19.4s TimeCoverageRelationStatistics Valid=124, Invalid=998, Unknown=0, NotChecked=0, Total=1122
[2024-11-08 17:23:05,979 INFO  L432           NwaCegarLoop]: 153 mSDtfsCounter, 223 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 681 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time
[2024-11-08 17:23:05,980 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 681 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time]
[2024-11-08 17:23:05,981 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 117 states.
[2024-11-08 17:23:06,010 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117.
[2024-11-08 17:23:06,012 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 117 states, 104 states have (on average 1.4326923076923077) internal successors, (149), 104 states have internal predecessors, (149), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7)
[2024-11-08 17:23:06,013 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 163 transitions.
[2024-11-08 17:23:06,014 INFO  L78                 Accepts]: Start accepts. Automaton has 117 states and 163 transitions. Word has length 68
[2024-11-08 17:23:06,014 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:23:06,014 INFO  L471      AbstractCegarLoop]: Abstraction has 117 states and 163 transitions.
[2024-11-08 17:23:06,015 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 4 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6)
[2024-11-08 17:23:06,015 INFO  L276                IsEmpty]: Start isEmpty. Operand 117 states and 163 transitions.
[2024-11-08 17:23:06,017 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 70
[2024-11-08 17:23:06,020 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 17:23:06,021 INFO  L215           NwaCegarLoop]: trace histogram [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]
[2024-11-08 17:23:06,044 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0
[2024-11-08 17:23:06,239 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0
[2024-11-08 17:23:06,421 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:23:06,422 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 17:23:06,422 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:23:06,422 INFO  L85        PathProgramCache]: Analyzing trace with hash 1586929016, now seen corresponding path program 1 times
[2024-11-08 17:23:06,423 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 17:23:06,423 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1916936849]
[2024-11-08 17:23:06,423 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:23:06,423 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-08 17:23:06,423 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/mathsat
[2024-11-08 17:23:06,424 INFO  L229       MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2024-11-08 17:23:06,425 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process
[2024-11-08 17:23:07,602 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:23:07,633 INFO  L255         TraceCheckSpWp]: Trace formula consists of 858 conjuncts, 20 conjuncts are in the unsatisfiable core
[2024-11-08 17:23:07,636 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:23:21,472 INFO  L134       CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:23:21,473 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 17:23:33,197 INFO  L136   FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 17:23:33,197 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1916936849]
[2024-11-08 17:23:33,197 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1916936849] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 17:23:33,197 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [801629739]
[2024-11-08 17:23:33,197 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:23:33,198 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:23:33,198 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:23:33,199 INFO  L229       MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:23:33,200 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process
[2024-11-08 17:23:34,067 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:23:34,079 INFO  L255         TraceCheckSpWp]: Trace formula consists of 858 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-08 17:23:34,081 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:23:36,601 INFO  L134       CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked.
[2024-11-08 17:23:36,602 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 17:23:41,612 INFO  L134       CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked.
[2024-11-08 17:23:41,613 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [801629739] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-08 17:23:41,613 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences.
[2024-11-08 17:23:41,613 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [13, 5] total 18
[2024-11-08 17:23:41,613 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355983623]
[2024-11-08 17:23:41,613 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:23:41,614 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-08 17:23:41,614 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 17:23:41,615 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-08 17:23:41,615 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=400, Unknown=0, NotChecked=0, Total=462
[2024-11-08 17:23:41,615 INFO  L87              Difference]: Start difference. First operand 117 states and 163 transitions. Second operand  has 5 states, 4 states have (on average 11.75) internal successors, (47), 5 states have internal predecessors, (47), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6)
[2024-11-08 17:23:42,008 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:23:42,009 INFO  L93              Difference]: Finished difference Result 124 states and 169 transitions.
[2024-11-08 17:23:42,009 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-08 17:23:42,010 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 4 states have (on average 11.75) internal successors, (47), 5 states have internal predecessors, (47), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 69
[2024-11-08 17:23:42,010 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:23:42,011 INFO  L225             Difference]: With dead ends: 124
[2024-11-08 17:23:42,011 INFO  L226             Difference]: Without dead ends: 106
[2024-11-08 17:23:42,012 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 203 SyntacticMatches, 3 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 11.5s TimeCoverageRelationStatistics Valid=62, Invalid=400, Unknown=0, NotChecked=0, Total=462
[2024-11-08 17:23:42,012 INFO  L432           NwaCegarLoop]: 153 mSDtfsCounter, 22 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-08 17:23:42,013 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 441 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-08 17:23:42,014 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 106 states.
[2024-11-08 17:23:42,038 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106.
[2024-11-08 17:23:42,038 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 106 states, 94 states have (on average 1.4148936170212767) internal successors, (133), 94 states have internal predecessors, (133), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2024-11-08 17:23:42,039 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 145 transitions.
[2024-11-08 17:23:42,039 INFO  L78                 Accepts]: Start accepts. Automaton has 106 states and 145 transitions. Word has length 69
[2024-11-08 17:23:42,039 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:23:42,040 INFO  L471      AbstractCegarLoop]: Abstraction has 106 states and 145 transitions.
[2024-11-08 17:23:42,040 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 4 states have (on average 11.75) internal successors, (47), 5 states have internal predecessors, (47), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6)
[2024-11-08 17:23:42,040 INFO  L276                IsEmpty]: Start isEmpty. Operand 106 states and 145 transitions.
[2024-11-08 17:23:42,043 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 70
[2024-11-08 17:23:42,043 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 17:23:42,043 INFO  L215           NwaCegarLoop]: trace histogram [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]
[2024-11-08 17:23:42,062 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0
[2024-11-08 17:23:42,257 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0
[2024-11-08 17:23:42,444 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-08 17:23:42,444 INFO  L396      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 17:23:42,445 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:23:42,445 INFO  L85        PathProgramCache]: Analyzing trace with hash -1036148200, now seen corresponding path program 1 times
[2024-11-08 17:23:42,446 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 17:23:42,446 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1910412387]
[2024-11-08 17:23:42,446 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:23:42,446 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-08 17:23:42,446 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/mathsat
[2024-11-08 17:23:42,447 INFO  L229       MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2024-11-08 17:23:42,448 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process
[2024-11-08 17:23:43,798 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:23:43,827 INFO  L255         TraceCheckSpWp]: Trace formula consists of 858 conjuncts, 20 conjuncts are in the unsatisfiable core
[2024-11-08 17:23:43,831 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:23:57,582 INFO  L134       CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:23:57,583 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 17:24:08,916 INFO  L136   FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 17:24:08,916 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1910412387]
[2024-11-08 17:24:08,916 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1910412387] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 17:24:08,917 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [395919220]
[2024-11-08 17:24:08,917 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:24:08,917 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:24:08,917 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:24:08,918 INFO  L229       MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:24:08,919 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process
[2024-11-08 17:24:09,784 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:24:09,797 INFO  L255         TraceCheckSpWp]: Trace formula consists of 858 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-08 17:24:09,798 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:24:12,414 INFO  L134       CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:24:12,414 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 17:24:12,414 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [395919220] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:24:12,415 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-08 17:24:12,415 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [13] total 17
[2024-11-08 17:24:12,415 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701543634]
[2024-11-08 17:24:12,415 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:24:12,415 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-08 17:24:12,416 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 17:24:12,416 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-08 17:24:12,416 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=360, Unknown=0, NotChecked=0, Total=420
[2024-11-08 17:24:12,417 INFO  L87              Difference]: Start difference. First operand 106 states and 145 transitions. Second operand  has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (7), 2 states have call predecessors, (7), 4 states have call successors, (7)
[2024-11-08 17:24:13,515 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:24:13,515 INFO  L93              Difference]: Finished difference Result 213 states and 298 transitions.
[2024-11-08 17:24:13,516 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-11-08 17:24:13,516 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (7), 2 states have call predecessors, (7), 4 states have call successors, (7) Word has length 69
[2024-11-08 17:24:13,517 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:24:13,518 INFO  L225             Difference]: With dead ends: 213
[2024-11-08 17:24:13,518 INFO  L226             Difference]: Without dead ends: 114
[2024-11-08 17:24:13,519 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 136 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 10.6s TimeCoverageRelationStatistics Valid=60, Invalid=360, Unknown=0, NotChecked=0, Total=420
[2024-11-08 17:24:13,520 INFO  L432           NwaCegarLoop]: 138 mSDtfsCounter, 33 mSDsluCounter, 515 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 653 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time
[2024-11-08 17:24:13,520 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 653 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time]
[2024-11-08 17:24:13,521 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 114 states.
[2024-11-08 17:24:13,536 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 108.
[2024-11-08 17:24:13,536 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 108 states, 96 states have (on average 1.40625) internal successors, (135), 96 states have internal predecessors, (135), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2024-11-08 17:24:13,537 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 147 transitions.
[2024-11-08 17:24:13,537 INFO  L78                 Accepts]: Start accepts. Automaton has 108 states and 147 transitions. Word has length 69
[2024-11-08 17:24:13,538 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:24:13,538 INFO  L471      AbstractCegarLoop]: Abstraction has 108 states and 147 transitions.
[2024-11-08 17:24:13,538 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (7), 2 states have call predecessors, (7), 4 states have call successors, (7)
[2024-11-08 17:24:13,538 INFO  L276                IsEmpty]: Start isEmpty. Operand 108 states and 147 transitions.
[2024-11-08 17:24:13,539 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 78
[2024-11-08 17:24:13,540 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 17:24:13,540 INFO  L215           NwaCegarLoop]: trace histogram [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]
[2024-11-08 17:24:13,571 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0
[2024-11-08 17:24:13,754 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0
[2024-11-08 17:24:13,941 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-08 17:24:13,941 INFO  L396      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 17:24:13,941 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:24:13,941 INFO  L85        PathProgramCache]: Analyzing trace with hash 926696184, now seen corresponding path program 1 times
[2024-11-08 17:24:13,942 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 17:24:13,942 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [336046817]
[2024-11-08 17:24:13,942 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:24:13,942 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-08 17:24:13,942 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/mathsat
[2024-11-08 17:24:13,944 INFO  L229       MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2024-11-08 17:24:13,945 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process
[2024-11-08 17:24:15,275 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:24:15,314 INFO  L255         TraceCheckSpWp]: Trace formula consists of 872 conjuncts, 20 conjuncts are in the unsatisfiable core
[2024-11-08 17:24:15,316 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:24:29,808 INFO  L134       CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-08 17:24:29,808 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 17:24:41,140 INFO  L136   FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 17:24:41,140 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [336046817]
[2024-11-08 17:24:41,140 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [336046817] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 17:24:41,140 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2003658273]
[2024-11-08 17:24:41,140 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:24:41,140 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:24:41,141 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:24:41,143 INFO  L229       MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:24:41,145 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process
[2024-11-08 17:24:42,123 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:24:42,140 INFO  L255         TraceCheckSpWp]: Trace formula consists of 872 conjuncts, 9 conjuncts are in the unsatisfiable core
[2024-11-08 17:24:42,142 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:24:49,698 INFO  L134       CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked.
[2024-11-08 17:24:49,698 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 17:24:56,722 INFO  L134       CoverageAnalysis]: Checked inductivity of 20 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked.
[2024-11-08 17:24:56,723 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2003658273] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-08 17:24:56,723 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences.
[2024-11-08 17:24:56,723 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [13, 7] total 20
[2024-11-08 17:24:56,723 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008462908]
[2024-11-08 17:24:56,723 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:24:56,724 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-08 17:24:56,724 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 17:24:56,724 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-08 17:24:56,725 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=468, Unknown=0, NotChecked=0, Total=552
[2024-11-08 17:24:56,725 INFO  L87              Difference]: Start difference. First operand 108 states and 147 transitions. Second operand  has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6)
[2024-11-08 17:25:00,847 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2024-11-08 17:25:04,967 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2024-11-08 17:25:09,095 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2024-11-08 17:25:10,587 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:25:10,587 INFO  L93              Difference]: Finished difference Result 127 states and 171 transitions.
[2024-11-08 17:25:10,590 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-11-08 17:25:10,590 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 77
[2024-11-08 17:25:10,592 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:25:10,593 INFO  L225             Difference]: With dead ends: 127
[2024-11-08 17:25:10,593 INFO  L226             Difference]: Without dead ends: 109
[2024-11-08 17:25:10,594 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 224 SyntacticMatches, 4 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 13.5s TimeCoverageRelationStatistics Valid=84, Invalid=468, Unknown=0, NotChecked=0, Total=552
[2024-11-08 17:25:10,599 INFO  L432           NwaCegarLoop]: 147 mSDtfsCounter, 22 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 534 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.8s IncrementalHoareTripleChecker+Time
[2024-11-08 17:25:10,600 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 534 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 37 Invalid, 3 Unknown, 0 Unchecked, 13.8s Time]
[2024-11-08 17:25:10,600 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 109 states.
[2024-11-08 17:25:10,625 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109.
[2024-11-08 17:25:10,625 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 109 states, 97 states have (on average 1.3917525773195876) internal successors, (135), 97 states have internal predecessors, (135), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2024-11-08 17:25:10,626 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 147 transitions.
[2024-11-08 17:25:10,626 INFO  L78                 Accepts]: Start accepts. Automaton has 109 states and 147 transitions. Word has length 77
[2024-11-08 17:25:10,626 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:25:10,626 INFO  L471      AbstractCegarLoop]: Abstraction has 109 states and 147 transitions.
[2024-11-08 17:25:10,626 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6)
[2024-11-08 17:25:10,627 INFO  L276                IsEmpty]: Start isEmpty. Operand 109 states and 147 transitions.
[2024-11-08 17:25:10,627 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 80
[2024-11-08 17:25:10,628 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 17:25:10,628 INFO  L215           NwaCegarLoop]: trace histogram [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]
[2024-11-08 17:25:10,652 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0
[2024-11-08 17:25:10,851 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0
[2024-11-08 17:25:11,029 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-08 17:25:11,029 INFO  L396      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 17:25:11,029 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:25:11,029 INFO  L85        PathProgramCache]: Analyzing trace with hash -1759631491, now seen corresponding path program 1 times
[2024-11-08 17:25:11,030 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 17:25:11,030 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1699713752]
[2024-11-08 17:25:11,030 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:25:11,030 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-08 17:25:11,030 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/mathsat
[2024-11-08 17:25:11,031 INFO  L229       MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2024-11-08 17:25:11,032 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process
[2024-11-08 17:25:12,801 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:25:12,837 INFO  L255         TraceCheckSpWp]: Trace formula consists of 885 conjuncts, 20 conjuncts are in the unsatisfiable core
[2024-11-08 17:25:12,840 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:25:28,654 INFO  L134       CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2024-11-08 17:25:28,655 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 17:25:41,965 INFO  L136   FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 17:25:41,965 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1699713752]
[2024-11-08 17:25:41,965 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1699713752] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 17:25:41,965 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1299994979]
[2024-11-08 17:25:41,965 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:25:41,966 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:25:41,966 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:25:41,967 INFO  L229       MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:25:41,969 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process
[2024-11-08 17:25:43,256 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:25:43,274 INFO  L255         TraceCheckSpWp]: Trace formula consists of 885 conjuncts, 15 conjuncts are in the unsatisfiable core
[2024-11-08 17:25:43,276 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:26:00,707 INFO  L134       CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 14 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-08 17:26:00,707 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 17:26:11,594 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1299994979] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 17:26:11,594 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-08 17:26:11,594 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 20
[2024-11-08 17:26:11,594 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945898453]
[2024-11-08 17:26:11,595 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-08 17:26:11,595 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 20 states
[2024-11-08 17:26:11,595 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 17:26:11,596 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants.
[2024-11-08 17:26:11,597 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=654, Unknown=0, NotChecked=0, Total=756
[2024-11-08 17:26:11,597 INFO  L87              Difference]: Start difference. First operand 109 states and 147 transitions. Second operand  has 20 states, 16 states have (on average 7.3125) internal successors, (117), 20 states have internal predecessors, (117), 10 states have call successors, (12), 3 states have call predecessors, (12), 10 states have return successors, (14), 9 states have call predecessors, (14), 10 states have call successors, (14)
[2024-11-08 17:26:15,645 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:26:19,660 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:26:23,748 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:26:27,916 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:26:31,919 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:26:36,058 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:26:40,071 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:26:44,087 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:26:48,254 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:26:52,421 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:26:56,545 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:27:00,558 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:27:04,782 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:27:08,788 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:27:12,963 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:27:16,969 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:27:24,109 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:27:28,229 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:27:42,477 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:27:46,649 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:27:51,407 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:27:55,576 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:28:01,678 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:28:05,699 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:28:09,813 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:28:13,834 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:28:18,783 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:28:44,223 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:28:49,749 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:28:56,442 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:29:00,452 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:29:11,442 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:29:16,323 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:29:20,457 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:29:21,264 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:29:21,265 INFO  L93              Difference]: Finished difference Result 437 states and 626 transitions.
[2024-11-08 17:29:21,267 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. 
[2024-11-08 17:29:21,268 INFO  L78                 Accepts]: Start accepts. Automaton has  has 20 states, 16 states have (on average 7.3125) internal successors, (117), 20 states have internal predecessors, (117), 10 states have call successors, (12), 3 states have call predecessors, (12), 10 states have return successors, (14), 9 states have call predecessors, (14), 10 states have call successors, (14) Word has length 79
[2024-11-08 17:29:21,268 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:29:21,269 INFO  L225             Difference]: With dead ends: 437
[2024-11-08 17:29:21,269 INFO  L226             Difference]: Without dead ends: 115
[2024-11-08 17:29:21,270 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 171 SyntacticMatches, 7 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 711 ImplicationChecksByTransitivity, 47.0s TimeCoverageRelationStatistics Valid=389, Invalid=2473, Unknown=0, NotChecked=0, Total=2862
[2024-11-08 17:29:21,271 INFO  L432           NwaCegarLoop]: 131 mSDtfsCounter, 582 mSDsluCounter, 1494 mSDsCounter, 0 mSdLazyCounter, 681 mSolverCounterSat, 33 mSolverCounterUnsat, 32 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 162.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 595 SdHoareTripleChecker+Valid, 1625 SdHoareTripleChecker+Invalid, 746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 681 IncrementalHoareTripleChecker+Invalid, 32 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 163.5s IncrementalHoareTripleChecker+Time
[2024-11-08 17:29:21,271 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [595 Valid, 1625 Invalid, 746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 681 Invalid, 32 Unknown, 0 Unchecked, 163.5s Time]
[2024-11-08 17:29:21,272 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 115 states.
[2024-11-08 17:29:21,292 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 112.
[2024-11-08 17:29:21,293 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 112 states, 100 states have (on average 1.38) internal successors, (138), 100 states have internal predecessors, (138), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2024-11-08 17:29:21,293 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 150 transitions.
[2024-11-08 17:29:21,294 INFO  L78                 Accepts]: Start accepts. Automaton has 112 states and 150 transitions. Word has length 79
[2024-11-08 17:29:21,294 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:29:21,294 INFO  L471      AbstractCegarLoop]: Abstraction has 112 states and 150 transitions.
[2024-11-08 17:29:21,294 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 20 states, 16 states have (on average 7.3125) internal successors, (117), 20 states have internal predecessors, (117), 10 states have call successors, (12), 3 states have call predecessors, (12), 10 states have return successors, (14), 9 states have call predecessors, (14), 10 states have call successors, (14)
[2024-11-08 17:29:21,295 INFO  L276                IsEmpty]: Start isEmpty. Operand 112 states and 150 transitions.
[2024-11-08 17:29:21,296 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 90
[2024-11-08 17:29:21,296 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 17:29:21,296 INFO  L215           NwaCegarLoop]: trace histogram [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]
[2024-11-08 17:29:21,330 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0
[2024-11-08 17:29:21,516 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0
[2024-11-08 17:29:21,697 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-08 17:29:21,698 INFO  L396      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 17:29:21,700 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:29:21,700 INFO  L85        PathProgramCache]: Analyzing trace with hash 790703481, now seen corresponding path program 1 times
[2024-11-08 17:29:21,701 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 17:29:21,702 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1834632998]
[2024-11-08 17:29:21,702 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:29:21,702 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-08 17:29:21,702 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/mathsat
[2024-11-08 17:29:21,706 INFO  L229       MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2024-11-08 17:29:21,713 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process
[2024-11-08 17:29:23,547 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:29:23,594 INFO  L255         TraceCheckSpWp]: Trace formula consists of 937 conjuncts, 21 conjuncts are in the unsatisfiable core
[2024-11-08 17:29:23,596 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:29:43,844 INFO  L134       CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 26 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2024-11-08 17:29:43,844 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 17:29:58,017 INFO  L136   FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 17:29:58,017 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1834632998]
[2024-11-08 17:29:58,017 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1834632998] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 17:29:58,017 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [940552361]
[2024-11-08 17:29:58,017 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:29:58,017 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:29:58,018 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:29:58,021 INFO  L229       MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:29:58,036 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6c19b05-cf7a-4e2a-8797-43f120bc7dd3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process
[2024-11-08 17:29:59,308 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:29:59,331 INFO  L255         TraceCheckSpWp]: Trace formula consists of 937 conjuncts, 10 conjuncts are in the unsatisfiable core
[2024-11-08 17:29:59,334 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:30:08,945 INFO  L134       CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked.
[2024-11-08 17:30:08,945 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 17:30:24,266 INFO  L134       CoverageAnalysis]: Checked inductivity of 34 backedges. 20 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked.
[2024-11-08 17:30:24,266 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [940552361] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 17:30:24,266 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 17:30:24,266 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 9, 9] total 28
[2024-11-08 17:30:24,267 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591461026]
[2024-11-08 17:30:24,267 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 17:30:24,268 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 28 states
[2024-11-08 17:30:24,268 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 17:30:24,269 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants.
[2024-11-08 17:30:24,270 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=860, Unknown=0, NotChecked=0, Total=992
[2024-11-08 17:30:24,270 INFO  L87              Difference]: Start difference. First operand 112 states and 150 transitions. Second operand  has 28 states, 25 states have (on average 6.44) internal successors, (161), 27 states have internal predecessors, (161), 10 states have call successors, (16), 4 states have call predecessors, (16), 9 states have return successors, (17), 8 states have call predecessors, (17), 10 states have call successors, (17)
[2024-11-08 17:30:28,309 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:30:32,580 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:30:36,583 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:30:40,799 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:30:44,812 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:30:48,967 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:30:53,035 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:30:57,093 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:31:01,140 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:31:05,271 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:31:13,602 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:31:18,133 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:31:38,693 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:31:45,932 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:31:50,386 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:31:53,025 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:31:57,032 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:32:08,424 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:32:15,404 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:32:19,535 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:32:25,829 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:32:34,227 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:32:40,586 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:32:45,071 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:32:55,095 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:33:12,478 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:33:14,182 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:33:18,241 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:33:26,499 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:33:28,609 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:33:36,738 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:33:40,885 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:33:46,079 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:33:55,957 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]