./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test4-3.i --full-output --architecture 32bit


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


Checking for overflows
Using default analysis
Version 0e0057cc
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_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test4-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f41a78d87834195eab5eb2e1b786d665ee0f261c86aa89f4e0ae15aff9e9d1ee
--- Real Ultimate output ---
This is Ultimate 0.2.4-dev-0e0057c
[2023-11-26 11:55:10,110 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-11-26 11:55:10,223 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-32bit-Automizer_Default.epf
[2023-11-26 11:55:10,231 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-11-26 11:55:10,232 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-26 11:55:10,272 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-26 11:55:10,273 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-26 11:55:10,273 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-26 11:55:10,274 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-11-26 11:55:10,279 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-11-26 11:55:10,280 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-26 11:55:10,281 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-26 11:55:10,282 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-26 11:55:10,284 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-11-26 11:55:10,284 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-11-26 11:55:10,285 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-26 11:55:10,286 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-11-26 11:55:10,286 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-11-26 11:55:10,287 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-11-26 11:55:10,287 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-11-26 11:55:10,288 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-11-26 11:55:10,288 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-11-26 11:55:10,289 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-26 11:55:10,289 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-11-26 11:55:10,290 INFO  L153        SettingsManager]:  * Check absence of signed integer overflows=true
[2023-11-26 11:55:10,290 INFO  L153        SettingsManager]:  * Check unreachability of reach_error function=false
[2023-11-26 11:55:10,291 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-11-26 11:55:10,291 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-11-26 11:55:10,292 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-11-26 11:55:10,293 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-26 11:55:10,294 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-11-26 11:55:10,294 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-11-26 11:55:10,295 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-11-26 11:55:10,295 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-11-26 11:55:10,295 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-26 11:55:10,296 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-11-26 11:55:10,296 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-11-26 11:55:10,296 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-11-26 11:55:10,297 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-11-26 11:55:10,297 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-11-26 11:55:10,297 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-26 11:55:10,298 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-11-26 11:55:10,298 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-11-26 11:55:10,298 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-26 11:55:10,299 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_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) )


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 -> f41a78d87834195eab5eb2e1b786d665ee0f261c86aa89f4e0ae15aff9e9d1ee
[2023-11-26 11:55:10,598 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-26 11:55:10,628 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-26 11:55:10,631 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-26 11:55:10,632 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-11-26 11:55:10,633 INFO  L274        PluginConnector]: CDTParser initialized
[2023-11-26 11:55:10,634 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test4-3.i
[2023-11-26 11:55:13,706 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-11-26 11:55:14,060 INFO  L384              CDTParser]: Found 1 translation units.
[2023-11-26 11:55:14,061 INFO  L180              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test4-3.i
[2023-11-26 11:55:14,091 INFO  L427              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/data/40a1d3095/513ee58f959049e99581c964e3f3bb14/FLAG23747a8e6
[2023-11-26 11:55:14,108 INFO  L435              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/data/40a1d3095/513ee58f959049e99581c964e3f3bb14
[2023-11-26 11:55:14,114 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-26 11:55:14,115 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-26 11:55:14,118 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-26 11:55:14,119 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-26 11:55:14,124 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-26 11:55:14,125 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:55:14" (1/1) ...
[2023-11-26 11:55:14,126 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66cd8e14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:55:14, skipping insertion in model container
[2023-11-26 11:55:14,126 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:55:14" (1/1) ...
[2023-11-26 11:55:14,219 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-11-26 11:55:14,992 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-11-26 11:55:15,004 INFO  L202         MainTranslator]: Completed pre-run
[2023-11-26 11:55:15,144 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-11-26 11:55:15,198 INFO  L206         MainTranslator]: Completed translation
[2023-11-26 11:55:15,198 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:55:15 WrapperNode
[2023-11-26 11:55:15,198 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-26 11:55:15,200 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-26 11:55:15,200 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-26 11:55:15,200 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-26 11:55:15,208 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:55:15" (1/1) ...
[2023-11-26 11:55:15,275 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:55:15" (1/1) ...
[2023-11-26 11:55:15,484 INFO  L138                Inliner]: procedures = 177, calls = 449, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1817
[2023-11-26 11:55:15,485 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-26 11:55:15,485 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-26 11:55:15,486 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-26 11:55:15,486 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-11-26 11:55:15,501 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:55:15" (1/1) ...
[2023-11-26 11:55:15,502 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:55:15" (1/1) ...
[2023-11-26 11:55:15,523 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:55:15" (1/1) ...
[2023-11-26 11:55:15,747 INFO  L175           MemorySlicer]: Split 413 memory accesses to 4 slices as follows [2, 5, 5, 401]. 97 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 100 writes are split as follows [0, 1, 1, 98].
[2023-11-26 11:55:15,748 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:55:15" (1/1) ...
[2023-11-26 11:55:15,748 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:55:15" (1/1) ...
[2023-11-26 11:55:15,823 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:55:15" (1/1) ...
[2023-11-26 11:55:15,850 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:55:15" (1/1) ...
[2023-11-26 11:55:15,859 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:55:15" (1/1) ...
[2023-11-26 11:55:15,868 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:55:15" (1/1) ...
[2023-11-26 11:55:15,891 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-26 11:55:15,892 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-26 11:55:15,893 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-11-26 11:55:15,893 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-11-26 11:55:15,894 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:55:15" (1/1) ...
[2023-11-26 11:55:15,900 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-11-26 11:55:15,912 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3
[2023-11-26 11:55:15,926 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2023-11-26 11:55:15,956 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2023-11-26 11:55:15,969 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#0
[2023-11-26 11:55:15,969 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#1
[2023-11-26 11:55:15,969 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#2
[2023-11-26 11:55:15,970 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#3
[2023-11-26 11:55:15,970 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2023-11-26 11:55:15,970 INFO  L138     BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2023-11-26 11:55:15,970 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#0
[2023-11-26 11:55:15,970 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#1
[2023-11-26 11:55:15,971 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#2
[2023-11-26 11:55:15,971 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#3
[2023-11-26 11:55:15,971 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0
[2023-11-26 11:55:15,971 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1
[2023-11-26 11:55:15,971 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2
[2023-11-26 11:55:15,971 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3
[2023-11-26 11:55:15,972 INFO  L138     BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0
[2023-11-26 11:55:15,972 INFO  L138     BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1
[2023-11-26 11:55:15,972 INFO  L138     BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2
[2023-11-26 11:55:15,972 INFO  L138     BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3
[2023-11-26 11:55:15,972 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2023-11-26 11:55:15,973 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-11-26 11:55:15,973 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2023-11-26 11:55:15,973 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$#0
[2023-11-26 11:55:15,973 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$#1
[2023-11-26 11:55:15,973 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$#2
[2023-11-26 11:55:15,973 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$#3
[2023-11-26 11:55:15,974 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$#0
[2023-11-26 11:55:15,974 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$#1
[2023-11-26 11:55:15,974 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$#2
[2023-11-26 11:55:15,974 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$#3
[2023-11-26 11:55:15,974 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-11-26 11:55:15,975 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2023-11-26 11:55:15,975 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#1
[2023-11-26 11:55:15,975 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#2
[2023-11-26 11:55:15,975 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#3
[2023-11-26 11:55:15,975 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-26 11:55:15,975 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-26 11:55:16,261 INFO  L241             CfgBuilder]: Building ICFG
[2023-11-26 11:55:16,263 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-26 11:55:18,228 INFO  L282             CfgBuilder]: Performing block encoding
[2023-11-26 11:55:18,323 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-26 11:55:18,324 INFO  L309             CfgBuilder]: Removed 77 assume(true) statements.
[2023-11-26 11:55:18,324 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:55:18 BoogieIcfgContainer
[2023-11-26 11:55:18,325 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-26 11:55:18,327 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-11-26 11:55:18,327 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-11-26 11:55:18,331 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-11-26 11:55:18,331 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:55:14" (1/3) ...
[2023-11-26 11:55:18,332 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@548436d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:55:18, skipping insertion in model container
[2023-11-26 11:55:18,332 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:55:15" (2/3) ...
[2023-11-26 11:55:18,333 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@548436d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:55:18, skipping insertion in model container
[2023-11-26 11:55:18,333 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:55:18" (3/3) ...
[2023-11-26 11:55:18,334 INFO  L112   eAbstractionObserver]: Analyzing ICFG uthash_SAX_test4-3.i
[2023-11-26 11:55:18,355 INFO  L203   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-11-26 11:55:18,355 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations.
[2023-11-26 11:55:18,420 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-26 11:55:18,426 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5745338f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-11-26 11:55:18,427 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 6 error locations.
[2023-11-26 11:55:18,434 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 446 states, 421 states have (on average 1.7030878859857481) internal successors, (717), 437 states have internal predecessors, (717), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16)
[2023-11-26 11:55:18,440 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 6
[2023-11-26 11:55:18,441 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-26 11:55:18,441 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1]
[2023-11-26 11:55:18,442 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] ===
[2023-11-26 11:55:18,447 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-26 11:55:18,448 INFO  L85        PathProgramCache]: Analyzing trace with hash 1786738273, now seen corresponding path program 1 times
[2023-11-26 11:55:18,458 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-26 11:55:18,458 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189258566]
[2023-11-26 11:55:18,459 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:55:18,459 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-26 11:55:18,586 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:18,644 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-26 11:55:18,644 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-26 11:55:18,644 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189258566]
[2023-11-26 11:55:18,645 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189258566] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-26 11:55:18,646 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-26 11:55:18,646 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-26 11:55:18,648 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664727311]
[2023-11-26 11:55:18,648 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-26 11:55:18,654 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-11-26 11:55:18,655 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-26 11:55:18,698 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-11-26 11:55:18,699 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-11-26 11:55:18,704 INFO  L87              Difference]: Start difference. First operand  has 446 states, 421 states have (on average 1.7030878859857481) internal successors, (717), 437 states have internal predecessors, (717), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) Second operand  has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-26 11:55:18,842 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-26 11:55:18,842 INFO  L93              Difference]: Finished difference Result 889 states and 1506 transitions.
[2023-11-26 11:55:18,843 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-11-26 11:55:18,845 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5
[2023-11-26 11:55:18,846 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-26 11:55:18,869 INFO  L225             Difference]: With dead ends: 889
[2023-11-26 11:55:18,869 INFO  L226             Difference]: Without dead ends: 382
[2023-11-26 11:55:18,878 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-11-26 11:55:18,883 INFO  L413           NwaCegarLoop]: 656 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 656 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-26 11:55:18,885 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 656 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-26 11:55:18,902 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 382 states.
[2023-11-26 11:55:18,969 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 382.
[2023-11-26 11:55:18,972 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 382 states, 359 states have (on average 1.5153203342618384) internal successors, (544), 373 states have internal predecessors, (544), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16)
[2023-11-26 11:55:18,975 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 576 transitions.
[2023-11-26 11:55:18,977 INFO  L78                 Accepts]: Start accepts. Automaton has 382 states and 576 transitions. Word has length 5
[2023-11-26 11:55:18,977 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-26 11:55:18,977 INFO  L495      AbstractCegarLoop]: Abstraction has 382 states and 576 transitions.
[2023-11-26 11:55:18,978 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-26 11:55:18,978 INFO  L276                IsEmpty]: Start isEmpty. Operand 382 states and 576 transitions.
[2023-11-26 11:55:18,978 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 6
[2023-11-26 11:55:18,978 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-26 11:55:18,979 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1]
[2023-11-26 11:55:18,979 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-11-26 11:55:18,979 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] ===
[2023-11-26 11:55:18,980 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-26 11:55:18,980 INFO  L85        PathProgramCache]: Analyzing trace with hash 1744405262, now seen corresponding path program 1 times
[2023-11-26 11:55:18,980 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-26 11:55:18,981 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9356073]
[2023-11-26 11:55:18,981 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:55:18,981 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-26 11:55:19,004 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:19,056 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-26 11:55:19,057 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-26 11:55:19,057 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9356073]
[2023-11-26 11:55:19,057 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9356073] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-26 11:55:19,058 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-26 11:55:19,058 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-26 11:55:19,058 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548171576]
[2023-11-26 11:55:19,059 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-26 11:55:19,060 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-26 11:55:19,061 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-26 11:55:19,061 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-26 11:55:19,066 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-26 11:55:19,066 INFO  L87              Difference]: Start difference. First operand 382 states and 576 transitions. Second operand  has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-26 11:55:19,158 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-26 11:55:19,158 INFO  L93              Difference]: Finished difference Result 760 states and 1148 transitions.
[2023-11-26 11:55:19,159 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-11-26 11:55:19,160 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5
[2023-11-26 11:55:19,160 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-26 11:55:19,166 INFO  L225             Difference]: With dead ends: 760
[2023-11-26 11:55:19,167 INFO  L226             Difference]: Without dead ends: 729
[2023-11-26 11:55:19,168 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-26 11:55:19,170 INFO  L413           NwaCegarLoop]: 615 mSDtfsCounter, 508 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 514 SdHoareTripleChecker+Valid, 1181 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-26 11:55:19,171 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [514 Valid, 1181 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-26 11:55:19,176 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 729 states.
[2023-11-26 11:55:19,215 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 729 to 383.
[2023-11-26 11:55:19,216 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 383 states, 360 states have (on average 1.5138888888888888) internal successors, (545), 374 states have internal predecessors, (545), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16)
[2023-11-26 11:55:19,219 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 577 transitions.
[2023-11-26 11:55:19,219 INFO  L78                 Accepts]: Start accepts. Automaton has 383 states and 577 transitions. Word has length 5
[2023-11-26 11:55:19,220 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-26 11:55:19,220 INFO  L495      AbstractCegarLoop]: Abstraction has 383 states and 577 transitions.
[2023-11-26 11:55:19,220 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-26 11:55:19,220 INFO  L276                IsEmpty]: Start isEmpty. Operand 383 states and 577 transitions.
[2023-11-26 11:55:19,220 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2023-11-26 11:55:19,221 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-26 11:55:19,221 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1]
[2023-11-26 11:55:19,221 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-11-26 11:55:19,221 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] ===
[2023-11-26 11:55:19,222 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-26 11:55:19,222 INFO  L85        PathProgramCache]: Analyzing trace with hash -1799759281, now seen corresponding path program 1 times
[2023-11-26 11:55:19,222 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-26 11:55:19,222 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436976824]
[2023-11-26 11:55:19,223 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:55:19,223 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-26 11:55:19,264 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-11-26 11:55:19,266 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1006459009]
[2023-11-26 11:55:19,267 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:55:19,267 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-26 11:55:19,268 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3
[2023-11-26 11:55:19,271 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-26 11:55:19,300 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2023-11-26 11:55:19,528 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:19,531 INFO  L262         TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-11-26 11:55:19,537 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-11-26 11:55:19,555 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-26 11:55:19,555 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-26 11:55:19,555 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-26 11:55:19,556 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436976824]
[2023-11-26 11:55:19,556 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-11-26 11:55:19,556 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1006459009]
[2023-11-26 11:55:19,556 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1006459009] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-26 11:55:19,557 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-26 11:55:19,557 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2023-11-26 11:55:19,557 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135232716]
[2023-11-26 11:55:19,557 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-26 11:55:19,558 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-26 11:55:19,558 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-26 11:55:19,558 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-26 11:55:19,559 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-26 11:55:19,559 INFO  L87              Difference]: Start difference. First operand 383 states and 577 transitions. Second operand  has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-26 11:55:19,641 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-26 11:55:19,641 INFO  L93              Difference]: Finished difference Result 729 states and 1097 transitions.
[2023-11-26 11:55:19,642 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-11-26 11:55:19,642 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6
[2023-11-26 11:55:19,642 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-26 11:55:19,647 INFO  L225             Difference]: With dead ends: 729
[2023-11-26 11:55:19,647 INFO  L226             Difference]: Without dead ends: 728
[2023-11-26 11:55:19,648 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-26 11:55:19,649 INFO  L413           NwaCegarLoop]: 608 mSDtfsCounter, 503 mSDsluCounter, 565 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 509 SdHoareTripleChecker+Valid, 1173 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-26 11:55:19,649 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [509 Valid, 1173 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-26 11:55:19,652 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 728 states.
[2023-11-26 11:55:19,664 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 387.
[2023-11-26 11:55:19,666 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 387 states, 364 states have (on average 1.5082417582417582) internal successors, (549), 378 states have internal predecessors, (549), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16)
[2023-11-26 11:55:19,668 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 581 transitions.
[2023-11-26 11:55:19,669 INFO  L78                 Accepts]: Start accepts. Automaton has 387 states and 581 transitions. Word has length 6
[2023-11-26 11:55:19,669 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-26 11:55:19,669 INFO  L495      AbstractCegarLoop]: Abstraction has 387 states and 581 transitions.
[2023-11-26 11:55:19,670 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-26 11:55:19,670 INFO  L276                IsEmpty]: Start isEmpty. Operand 387 states and 581 transitions.
[2023-11-26 11:55:19,677 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 151
[2023-11-26 11:55:19,678 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-26 11:55:19,678 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-26 11:55:19,689 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2023-11-26 11:55:19,884 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2
[2023-11-26 11:55:19,885 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] ===
[2023-11-26 11:55:19,885 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-26 11:55:19,885 INFO  L85        PathProgramCache]: Analyzing trace with hash 2051702957, now seen corresponding path program 1 times
[2023-11-26 11:55:19,885 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-26 11:55:19,886 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243720979]
[2023-11-26 11:55:19,886 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:55:19,886 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-26 11:55:19,992 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-11-26 11:55:19,992 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [413605056]
[2023-11-26 11:55:19,992 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:55:19,992 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-26 11:55:19,993 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3
[2023-11-26 11:55:19,994 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-26 11:55:20,028 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2023-11-26 11:55:20,490 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:20,496 INFO  L262         TraceCheckSpWp]: Trace formula consists of 734 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-11-26 11:55:20,568 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-11-26 11:55:20,606 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-26 11:55:20,606 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-26 11:55:20,606 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-26 11:55:20,607 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243720979]
[2023-11-26 11:55:20,607 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-11-26 11:55:20,607 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [413605056]
[2023-11-26 11:55:20,607 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [413605056] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-26 11:55:20,607 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-26 11:55:20,608 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-11-26 11:55:20,608 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905156146]
[2023-11-26 11:55:20,608 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-26 11:55:20,609 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-26 11:55:20,609 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-26 11:55:20,610 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-26 11:55:20,610 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-26 11:55:20,610 INFO  L87              Difference]: Start difference. First operand 387 states and 581 transitions. Second operand  has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-26 11:55:20,721 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-26 11:55:20,721 INFO  L93              Difference]: Finished difference Result 789 states and 1187 transitions.
[2023-11-26 11:55:20,722 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-11-26 11:55:20,722 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 150
[2023-11-26 11:55:20,723 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-26 11:55:20,726 INFO  L225             Difference]: With dead ends: 789
[2023-11-26 11:55:20,726 INFO  L226             Difference]: Without dead ends: 408
[2023-11-26 11:55:20,727 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-26 11:55:20,728 INFO  L413           NwaCegarLoop]: 553 mSDtfsCounter, 9 mSDsluCounter, 539 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1092 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-11-26 11:55:20,728 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1092 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-11-26 11:55:20,730 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 408 states.
[2023-11-26 11:55:20,740 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 407.
[2023-11-26 11:55:20,741 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 407 states, 384 states have (on average 1.4817708333333333) internal successors, (569), 398 states have internal predecessors, (569), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16)
[2023-11-26 11:55:20,744 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 601 transitions.
[2023-11-26 11:55:20,744 INFO  L78                 Accepts]: Start accepts. Automaton has 407 states and 601 transitions. Word has length 150
[2023-11-26 11:55:20,745 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-26 11:55:20,745 INFO  L495      AbstractCegarLoop]: Abstraction has 407 states and 601 transitions.
[2023-11-26 11:55:20,745 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-26 11:55:20,745 INFO  L276                IsEmpty]: Start isEmpty. Operand 407 states and 601 transitions.
[2023-11-26 11:55:20,755 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 151
[2023-11-26 11:55:20,756 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-26 11:55:20,757 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-26 11:55:20,769 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2023-11-26 11:55:20,964 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-26 11:55:20,965 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] ===
[2023-11-26 11:55:20,965 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-26 11:55:20,966 INFO  L85        PathProgramCache]: Analyzing trace with hash 1189869355, now seen corresponding path program 1 times
[2023-11-26 11:55:20,966 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-26 11:55:20,966 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938469267]
[2023-11-26 11:55:20,966 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:55:20,966 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-26 11:55:21,107 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-11-26 11:55:21,107 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [930138635]
[2023-11-26 11:55:21,108 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:55:21,108 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-26 11:55:21,108 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3
[2023-11-26 11:55:21,109 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-26 11:55:21,132 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2023-11-26 11:55:21,648 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:21,653 INFO  L262         TraceCheckSpWp]: Trace formula consists of 736 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-11-26 11:55:21,661 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-11-26 11:55:21,682 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-26 11:55:21,683 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-26 11:55:21,683 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-26 11:55:21,683 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938469267]
[2023-11-26 11:55:21,683 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-11-26 11:55:21,684 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [930138635]
[2023-11-26 11:55:21,684 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [930138635] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-26 11:55:21,684 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-26 11:55:21,684 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-11-26 11:55:21,685 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835024308]
[2023-11-26 11:55:21,685 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-26 11:55:21,686 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-26 11:55:21,686 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-26 11:55:21,687 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-26 11:55:21,687 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-26 11:55:21,687 INFO  L87              Difference]: Start difference. First operand 407 states and 601 transitions. Second operand  has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-26 11:55:21,812 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-26 11:55:21,813 INFO  L93              Difference]: Finished difference Result 829 states and 1227 transitions.
[2023-11-26 11:55:21,813 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-11-26 11:55:21,814 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 150
[2023-11-26 11:55:21,814 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-26 11:55:21,817 INFO  L225             Difference]: With dead ends: 829
[2023-11-26 11:55:21,818 INFO  L226             Difference]: Without dead ends: 428
[2023-11-26 11:55:21,819 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-26 11:55:21,820 INFO  L413           NwaCegarLoop]: 553 mSDtfsCounter, 9 mSDsluCounter, 539 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1092 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-11-26 11:55:21,820 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1092 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-11-26 11:55:21,822 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 428 states.
[2023-11-26 11:55:21,833 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 427.
[2023-11-26 11:55:21,834 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 427 states, 404 states have (on average 1.4579207920792079) internal successors, (589), 418 states have internal predecessors, (589), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16)
[2023-11-26 11:55:21,837 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 621 transitions.
[2023-11-26 11:55:21,838 INFO  L78                 Accepts]: Start accepts. Automaton has 427 states and 621 transitions. Word has length 150
[2023-11-26 11:55:21,838 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-26 11:55:21,839 INFO  L495      AbstractCegarLoop]: Abstraction has 427 states and 621 transitions.
[2023-11-26 11:55:21,839 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-26 11:55:21,839 INFO  L276                IsEmpty]: Start isEmpty. Operand 427 states and 621 transitions.
[2023-11-26 11:55:21,841 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 151
[2023-11-26 11:55:21,842 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-26 11:55:21,842 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-26 11:55:21,850 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2023-11-26 11:55:22,050 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-26 11:55:22,051 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] ===
[2023-11-26 11:55:22,051 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-26 11:55:22,051 INFO  L85        PathProgramCache]: Analyzing trace with hash 988045421, now seen corresponding path program 1 times
[2023-11-26 11:55:22,052 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-26 11:55:22,052 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740030929]
[2023-11-26 11:55:22,052 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:55:22,052 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-26 11:55:22,160 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-11-26 11:55:22,164 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1099538831]
[2023-11-26 11:55:22,164 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:55:22,164 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-26 11:55:22,166 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3
[2023-11-26 11:55:22,167 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-26 11:55:22,192 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2023-11-26 11:55:22,697 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:22,703 INFO  L262         TraceCheckSpWp]: Trace formula consists of 738 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-11-26 11:55:22,710 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-11-26 11:55:22,768 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-26 11:55:22,768 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-26 11:55:22,769 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-26 11:55:22,769 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740030929]
[2023-11-26 11:55:22,769 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-11-26 11:55:22,769 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1099538831]
[2023-11-26 11:55:22,770 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1099538831] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-26 11:55:22,770 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-26 11:55:22,770 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-26 11:55:22,771 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503901444]
[2023-11-26 11:55:22,771 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-26 11:55:22,771 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-26 11:55:22,772 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-26 11:55:22,773 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-26 11:55:22,773 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-26 11:55:22,774 INFO  L87              Difference]: Start difference. First operand 427 states and 621 transitions. Second operand  has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-26 11:55:22,904 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-26 11:55:22,904 INFO  L93              Difference]: Finished difference Result 835 states and 1223 transitions.
[2023-11-26 11:55:22,905 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-11-26 11:55:22,906 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 150
[2023-11-26 11:55:22,907 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-26 11:55:22,910 INFO  L225             Difference]: With dead ends: 835
[2023-11-26 11:55:22,910 INFO  L226             Difference]: Without dead ends: 414
[2023-11-26 11:55:22,911 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-11-26 11:55:22,915 INFO  L413           NwaCegarLoop]: 546 mSDtfsCounter, 165 mSDsluCounter, 940 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 1486 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-11-26 11:55:22,916 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 1486 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-11-26 11:55:22,918 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 414 states.
[2023-11-26 11:55:22,932 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 413.
[2023-11-26 11:55:22,934 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 413 states, 390 states have (on average 1.4564102564102563) internal successors, (568), 404 states have internal predecessors, (568), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16)
[2023-11-26 11:55:22,937 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 600 transitions.
[2023-11-26 11:55:22,938 INFO  L78                 Accepts]: Start accepts. Automaton has 413 states and 600 transitions. Word has length 150
[2023-11-26 11:55:22,938 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-26 11:55:22,938 INFO  L495      AbstractCegarLoop]: Abstraction has 413 states and 600 transitions.
[2023-11-26 11:55:22,939 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-26 11:55:22,939 INFO  L276                IsEmpty]: Start isEmpty. Operand 413 states and 600 transitions.
[2023-11-26 11:55:22,941 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 151
[2023-11-26 11:55:22,942 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-26 11:55:22,942 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-26 11:55:22,957 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2023-11-26 11:55:23,150 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-26 11:55:23,151 INFO  L420      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] ===
[2023-11-26 11:55:23,151 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-26 11:55:23,151 INFO  L85        PathProgramCache]: Analyzing trace with hash -895186565, now seen corresponding path program 1 times
[2023-11-26 11:55:23,151 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-26 11:55:23,152 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014295776]
[2023-11-26 11:55:23,152 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:55:23,152 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-26 11:55:23,267 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-11-26 11:55:23,267 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [111321564]
[2023-11-26 11:55:23,267 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:55:23,267 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-26 11:55:23,268 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3
[2023-11-26 11:55:23,276 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-26 11:55:23,296 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2023-11-26 11:55:23,792 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:23,798 INFO  L262         TraceCheckSpWp]: Trace formula consists of 724 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-11-26 11:55:23,803 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-11-26 11:55:23,822 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-26 11:55:23,823 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-26 11:55:23,823 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-26 11:55:23,823 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014295776]
[2023-11-26 11:55:23,823 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-11-26 11:55:23,823 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [111321564]
[2023-11-26 11:55:23,823 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [111321564] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-26 11:55:23,824 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-26 11:55:23,824 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-26 11:55:23,824 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092919501]
[2023-11-26 11:55:23,824 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-26 11:55:23,825 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-26 11:55:23,825 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-26 11:55:23,825 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-26 11:55:23,826 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-26 11:55:23,826 INFO  L87              Difference]: Start difference. First operand 413 states and 600 transitions. Second operand  has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-26 11:55:23,933 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-26 11:55:23,933 INFO  L93              Difference]: Finished difference Result 807 states and 1181 transitions.
[2023-11-26 11:55:23,934 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-11-26 11:55:23,934 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 150
[2023-11-26 11:55:23,935 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-26 11:55:23,937 INFO  L225             Difference]: With dead ends: 807
[2023-11-26 11:55:23,938 INFO  L226             Difference]: Without dead ends: 400
[2023-11-26 11:55:23,939 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-11-26 11:55:23,939 INFO  L413           NwaCegarLoop]: 539 mSDtfsCounter, 165 mSDsluCounter, 926 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 1465 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-11-26 11:55:23,940 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 1465 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-11-26 11:55:23,941 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 400 states.
[2023-11-26 11:55:23,951 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 399.
[2023-11-26 11:55:23,952 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 399 states, 376 states have (on average 1.4547872340425532) internal successors, (547), 390 states have internal predecessors, (547), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16)
[2023-11-26 11:55:23,955 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 579 transitions.
[2023-11-26 11:55:23,955 INFO  L78                 Accepts]: Start accepts. Automaton has 399 states and 579 transitions. Word has length 150
[2023-11-26 11:55:23,956 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-26 11:55:23,956 INFO  L495      AbstractCegarLoop]: Abstraction has 399 states and 579 transitions.
[2023-11-26 11:55:23,956 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-26 11:55:23,956 INFO  L276                IsEmpty]: Start isEmpty. Operand 399 states and 579 transitions.
[2023-11-26 11:55:23,958 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 151
[2023-11-26 11:55:23,959 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-26 11:55:23,959 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-26 11:55:23,972 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0
[2023-11-26 11:55:24,167 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-26 11:55:24,167 INFO  L420      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] ===
[2023-11-26 11:55:24,168 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-26 11:55:24,168 INFO  L85        PathProgramCache]: Analyzing trace with hash 627893293, now seen corresponding path program 1 times
[2023-11-26 11:55:24,168 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-26 11:55:24,168 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659215514]
[2023-11-26 11:55:24,168 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:55:24,169 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-26 11:55:24,284 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-11-26 11:55:24,284 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1631285521]
[2023-11-26 11:55:24,284 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:55:24,285 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-26 11:55:24,285 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3
[2023-11-26 11:55:24,286 INFO  L229       MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-26 11:55:24,308 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2023-11-26 11:55:24,833 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:24,838 INFO  L262         TraceCheckSpWp]: Trace formula consists of 710 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-11-26 11:55:24,843 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-11-26 11:55:25,094 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-26 11:55:25,095 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-26 11:55:25,095 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-26 11:55:25,095 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659215514]
[2023-11-26 11:55:25,095 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-11-26 11:55:25,095 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1631285521]
[2023-11-26 11:55:25,096 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1631285521] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-26 11:55:25,096 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-26 11:55:25,096 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-26 11:55:25,096 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710172630]
[2023-11-26 11:55:25,097 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-26 11:55:25,097 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-26 11:55:25,097 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-26 11:55:25,098 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-26 11:55:25,098 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-26 11:55:25,098 INFO  L87              Difference]: Start difference. First operand 399 states and 579 transitions. Second operand  has 4 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-26 11:55:25,161 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-26 11:55:25,161 INFO  L93              Difference]: Finished difference Result 399 states and 579 transitions.
[2023-11-26 11:55:25,162 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-11-26 11:55:25,162 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 150
[2023-11-26 11:55:25,163 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-26 11:55:25,165 INFO  L225             Difference]: With dead ends: 399
[2023-11-26 11:55:25,166 INFO  L226             Difference]: Without dead ends: 398
[2023-11-26 11:55:25,166 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-11-26 11:55:25,167 INFO  L413           NwaCegarLoop]: 548 mSDtfsCounter, 376 mSDsluCounter, 569 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 392 SdHoareTripleChecker+Valid, 1117 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-26 11:55:25,167 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [392 Valid, 1117 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-26 11:55:25,168 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 398 states.
[2023-11-26 11:55:25,179 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 398.
[2023-11-26 11:55:25,181 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 398 states, 376 states have (on average 1.452127659574468) internal successors, (546), 389 states have internal predecessors, (546), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16)
[2023-11-26 11:55:25,183 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 578 transitions.
[2023-11-26 11:55:25,183 INFO  L78                 Accepts]: Start accepts. Automaton has 398 states and 578 transitions. Word has length 150
[2023-11-26 11:55:25,184 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-26 11:55:25,184 INFO  L495      AbstractCegarLoop]: Abstraction has 398 states and 578 transitions.
[2023-11-26 11:55:25,184 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-26 11:55:25,185 INFO  L276                IsEmpty]: Start isEmpty. Operand 398 states and 578 transitions.
[2023-11-26 11:55:25,187 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 152
[2023-11-26 11:55:25,187 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-26 11:55:25,187 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-26 11:55:25,200 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0
[2023-11-26 11:55:25,394 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-26 11:55:25,395 INFO  L420      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] ===
[2023-11-26 11:55:25,395 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-26 11:55:25,396 INFO  L85        PathProgramCache]: Analyzing trace with hash -2010142908, now seen corresponding path program 1 times
[2023-11-26 11:55:25,396 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-26 11:55:25,396 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001429226]
[2023-11-26 11:55:25,396 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:55:25,396 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-26 11:55:25,502 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-11-26 11:55:25,502 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [658286042]
[2023-11-26 11:55:25,502 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:55:25,503 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-26 11:55:25,503 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3
[2023-11-26 11:55:25,504 INFO  L229       MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-26 11:55:25,508 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2023-11-26 11:55:26,068 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:26,073 INFO  L262         TraceCheckSpWp]: Trace formula consists of 711 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-11-26 11:55:26,078 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-11-26 11:55:26,314 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-26 11:55:26,315 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-26 11:55:26,315 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-26 11:55:26,315 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001429226]
[2023-11-26 11:55:26,315 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-11-26 11:55:26,315 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [658286042]
[2023-11-26 11:55:26,315 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [658286042] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-26 11:55:26,316 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-26 11:55:26,316 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-26 11:55:26,316 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482517612]
[2023-11-26 11:55:26,316 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-26 11:55:26,317 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-26 11:55:26,317 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-26 11:55:26,317 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-26 11:55:26,318 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-26 11:55:26,318 INFO  L87              Difference]: Start difference. First operand 398 states and 578 transitions. Second operand  has 4 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-26 11:55:26,409 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-26 11:55:26,409 INFO  L93              Difference]: Finished difference Result 750 states and 1090 transitions.
[2023-11-26 11:55:26,409 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-11-26 11:55:26,410 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 151
[2023-11-26 11:55:26,410 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-26 11:55:26,415 INFO  L225             Difference]: With dead ends: 750
[2023-11-26 11:55:26,415 INFO  L226             Difference]: Without dead ends: 749
[2023-11-26 11:55:26,415 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-11-26 11:55:26,417 INFO  L413           NwaCegarLoop]: 631 mSDtfsCounter, 344 mSDsluCounter, 1180 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 1811 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-26 11:55:26,418 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [350 Valid, 1811 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-26 11:55:26,420 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 749 states.
[2023-11-26 11:55:26,444 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 749 to 749.
[2023-11-26 11:55:26,446 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 749 states, 721 states have (on average 1.449375866851595) internal successors, (1045), 734 states have internal predecessors, (1045), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 13 states have call predecessors, (22), 22 states have call successors, (22)
[2023-11-26 11:55:26,450 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 749 states to 749 states and 1089 transitions.
[2023-11-26 11:55:26,451 INFO  L78                 Accepts]: Start accepts. Automaton has 749 states and 1089 transitions. Word has length 151
[2023-11-26 11:55:26,451 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-26 11:55:26,451 INFO  L495      AbstractCegarLoop]: Abstraction has 749 states and 1089 transitions.
[2023-11-26 11:55:26,452 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-26 11:55:26,452 INFO  L276                IsEmpty]: Start isEmpty. Operand 749 states and 1089 transitions.
[2023-11-26 11:55:26,454 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 156
[2023-11-26 11:55:26,454 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-26 11:55:26,455 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-26 11:55:26,468 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0
[2023-11-26 11:55:26,663 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-26 11:55:26,664 INFO  L420      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] ===
[2023-11-26 11:55:26,664 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-26 11:55:26,664 INFO  L85        PathProgramCache]: Analyzing trace with hash 234411893, now seen corresponding path program 1 times
[2023-11-26 11:55:26,664 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-26 11:55:26,664 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705645141]
[2023-11-26 11:55:26,664 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:55:26,665 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-26 11:55:26,775 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-11-26 11:55:26,775 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [681215083]
[2023-11-26 11:55:26,775 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:55:26,776 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-26 11:55:26,776 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3
[2023-11-26 11:55:26,777 INFO  L229       MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-26 11:55:26,789 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process
[2023-11-26 11:55:27,340 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:27,346 INFO  L262         TraceCheckSpWp]: Trace formula consists of 734 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-11-26 11:55:27,351 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-11-26 11:55:27,639 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-26 11:55:27,639 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-11-26 11:55:27,905 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-26 11:55:27,905 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-26 11:55:27,906 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705645141]
[2023-11-26 11:55:27,906 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-11-26 11:55:27,906 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [681215083]
[2023-11-26 11:55:27,906 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [681215083] provided 0 perfect and 2 imperfect interpolant sequences
[2023-11-26 11:55:27,906 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-11-26 11:55:27,906 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7
[2023-11-26 11:55:27,909 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955823446]
[2023-11-26 11:55:27,909 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-11-26 11:55:27,910 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2023-11-26 11:55:27,910 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-26 11:55:27,911 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2023-11-26 11:55:27,911 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56
[2023-11-26 11:55:27,911 INFO  L87              Difference]: Start difference. First operand 749 states and 1089 transitions. Second operand  has 8 states, 8 states have (on average 38.375) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-26 11:55:28,112 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-26 11:55:28,112 INFO  L93              Difference]: Finished difference Result 1138 states and 1660 transitions.
[2023-11-26 11:55:28,113 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2023-11-26 11:55:28,113 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 38.375) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 155
[2023-11-26 11:55:28,114 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-26 11:55:28,120 INFO  L225             Difference]: With dead ends: 1138
[2023-11-26 11:55:28,121 INFO  L226             Difference]: Without dead ends: 1106
[2023-11-26 11:55:28,122 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 302 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90
[2023-11-26 11:55:28,123 INFO  L413           NwaCegarLoop]: 634 mSDtfsCounter, 1672 mSDsluCounter, 2841 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1690 SdHoareTripleChecker+Valid, 3475 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-11-26 11:55:28,124 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1690 Valid, 3475 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-11-26 11:55:28,127 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1106 states.
[2023-11-26 11:55:28,158 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1106 to 1106.
[2023-11-26 11:55:28,162 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1106 states, 1072 states have (on average 1.4468283582089552) internal successors, (1551), 1085 states have internal predecessors, (1551), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 19 states have call predecessors, (28), 28 states have call successors, (28)
[2023-11-26 11:55:28,168 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1106 states to 1106 states and 1607 transitions.
[2023-11-26 11:55:28,168 INFO  L78                 Accepts]: Start accepts. Automaton has 1106 states and 1607 transitions. Word has length 155
[2023-11-26 11:55:28,169 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-26 11:55:28,169 INFO  L495      AbstractCegarLoop]: Abstraction has 1106 states and 1607 transitions.
[2023-11-26 11:55:28,169 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 38.375) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-26 11:55:28,169 INFO  L276                IsEmpty]: Start isEmpty. Operand 1106 states and 1607 transitions.
[2023-11-26 11:55:28,171 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 157
[2023-11-26 11:55:28,172 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-26 11:55:28,172 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-26 11:55:28,185 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0
[2023-11-26 11:55:28,380 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9
[2023-11-26 11:55:28,380 INFO  L420      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] ===
[2023-11-26 11:55:28,381 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-26 11:55:28,381 INFO  L85        PathProgramCache]: Analyzing trace with hash -1364913464, now seen corresponding path program 1 times
[2023-11-26 11:55:28,381 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-26 11:55:28,381 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3133074]
[2023-11-26 11:55:28,381 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:55:28,381 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-26 11:55:28,459 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-11-26 11:55:28,459 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1343529891]
[2023-11-26 11:55:28,459 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:55:28,460 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-26 11:55:28,460 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3
[2023-11-26 11:55:28,461 INFO  L229       MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-26 11:55:28,480 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process
[2023-11-26 11:55:29,081 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:29,086 INFO  L262         TraceCheckSpWp]: Trace formula consists of 741 conjuncts, 5 conjunts are in the unsatisfiable core
[2023-11-26 11:55:29,091 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-11-26 11:55:29,339 INFO  L134       CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-26 11:55:29,339 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-26 11:55:29,340 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-26 11:55:29,340 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3133074]
[2023-11-26 11:55:29,341 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-11-26 11:55:29,341 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1343529891]
[2023-11-26 11:55:29,341 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1343529891] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-26 11:55:29,341 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-26 11:55:29,341 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-26 11:55:29,342 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462871488]
[2023-11-26 11:55:29,342 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-26 11:55:29,342 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-26 11:55:29,343 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-26 11:55:29,343 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-26 11:55:29,343 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-26 11:55:29,344 INFO  L87              Difference]: Start difference. First operand 1106 states and 1607 transitions. Second operand  has 3 states, 3 states have (on average 52.0) internal successors, (156), 2 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-26 11:55:29,436 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-26 11:55:29,436 INFO  L93              Difference]: Finished difference Result 2080 states and 3020 transitions.
[2023-11-26 11:55:29,437 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-11-26 11:55:29,437 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 52.0) internal successors, (156), 2 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 156
[2023-11-26 11:55:29,438 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-26 11:55:29,445 INFO  L225             Difference]: With dead ends: 2080
[2023-11-26 11:55:29,446 INFO  L226             Difference]: Without dead ends: 1104
[2023-11-26 11:55:29,447 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-26 11:55:29,448 INFO  L413           NwaCegarLoop]: 557 mSDtfsCounter, 123 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 1100 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-11-26 11:55:29,448 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 1100 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-11-26 11:55:29,451 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1104 states.
[2023-11-26 11:55:29,482 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1104 to 1104.
[2023-11-26 11:55:29,485 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1104 states, 1070 states have (on average 1.4467289719626168) internal successors, (1548), 1083 states have internal predecessors, (1548), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 19 states have call predecessors, (28), 28 states have call successors, (28)
[2023-11-26 11:55:29,491 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1104 states to 1104 states and 1604 transitions.
[2023-11-26 11:55:29,491 INFO  L78                 Accepts]: Start accepts. Automaton has 1104 states and 1604 transitions. Word has length 156
[2023-11-26 11:55:29,492 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-26 11:55:29,492 INFO  L495      AbstractCegarLoop]: Abstraction has 1104 states and 1604 transitions.
[2023-11-26 11:55:29,492 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 52.0) internal successors, (156), 2 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-26 11:55:29,492 INFO  L276                IsEmpty]: Start isEmpty. Operand 1104 states and 1604 transitions.
[2023-11-26 11:55:29,494 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 170
[2023-11-26 11:55:29,495 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-26 11:55:29,495 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-26 11:55:29,509 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0
[2023-11-26 11:55:29,709 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10
[2023-11-26 11:55:29,709 INFO  L420      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] ===
[2023-11-26 11:55:29,714 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-26 11:55:29,715 INFO  L85        PathProgramCache]: Analyzing trace with hash -1934476757, now seen corresponding path program 1 times
[2023-11-26 11:55:29,715 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-26 11:55:29,715 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975852346]
[2023-11-26 11:55:29,715 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:55:29,715 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-26 11:55:29,804 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-11-26 11:55:29,804 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1373669746]
[2023-11-26 11:55:29,804 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:55:29,805 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-26 11:55:29,805 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3
[2023-11-26 11:55:29,806 INFO  L229       MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-26 11:55:29,848 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process
[2023-11-26 11:55:30,494 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:30,500 INFO  L262         TraceCheckSpWp]: Trace formula consists of 888 conjuncts, 5 conjunts are in the unsatisfiable core
[2023-11-26 11:55:30,507 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-11-26 11:55:31,032 INFO  L134       CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2023-11-26 11:55:31,033 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-26 11:55:31,033 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-26 11:55:31,033 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975852346]
[2023-11-26 11:55:31,033 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-11-26 11:55:31,033 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1373669746]
[2023-11-26 11:55:31,034 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1373669746] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-26 11:55:31,034 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-26 11:55:31,034 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-11-26 11:55:31,034 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194283441]
[2023-11-26 11:55:31,034 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-26 11:55:31,035 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-26 11:55:31,035 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-26 11:55:31,036 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-26 11:55:31,037 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-26 11:55:31,037 INFO  L87              Difference]: Start difference. First operand 1104 states and 1604 transitions. Second operand  has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2023-11-26 11:55:31,142 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-26 11:55:31,145 INFO  L93              Difference]: Finished difference Result 1904 states and 2763 transitions.
[2023-11-26 11:55:31,146 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-11-26 11:55:31,146 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 169
[2023-11-26 11:55:31,146 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-26 11:55:31,154 INFO  L225             Difference]: With dead ends: 1904
[2023-11-26 11:55:31,154 INFO  L226             Difference]: Without dead ends: 1102
[2023-11-26 11:55:31,158 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-26 11:55:31,158 INFO  L413           NwaCegarLoop]: 557 mSDtfsCounter, 286 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 1099 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-11-26 11:55:31,159 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 1099 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-11-26 11:55:31,162 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1102 states.
[2023-11-26 11:55:31,191 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1102 to 1102.
[2023-11-26 11:55:31,194 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1102 states, 1068 states have (on average 1.446629213483146) internal successors, (1545), 1081 states have internal predecessors, (1545), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 19 states have call predecessors, (28), 28 states have call successors, (28)
[2023-11-26 11:55:31,201 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1102 states to 1102 states and 1601 transitions.
[2023-11-26 11:55:31,201 INFO  L78                 Accepts]: Start accepts. Automaton has 1102 states and 1601 transitions. Word has length 169
[2023-11-26 11:55:31,202 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-26 11:55:31,202 INFO  L495      AbstractCegarLoop]: Abstraction has 1102 states and 1601 transitions.
[2023-11-26 11:55:31,202 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2023-11-26 11:55:31,203 INFO  L276                IsEmpty]: Start isEmpty. Operand 1102 states and 1601 transitions.
[2023-11-26 11:55:31,205 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 183
[2023-11-26 11:55:31,205 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-26 11:55:31,205 INFO  L195           NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-26 11:55:31,214 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0
[2023-11-26 11:55:31,414 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11
[2023-11-26 11:55:31,415 INFO  L420      AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] ===
[2023-11-26 11:55:31,415 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-26 11:55:31,415 INFO  L85        PathProgramCache]: Analyzing trace with hash -2039168966, now seen corresponding path program 1 times
[2023-11-26 11:55:31,415 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-26 11:55:31,415 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142288505]
[2023-11-26 11:55:31,415 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:55:31,415 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-26 11:55:31,513 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-11-26 11:55:31,513 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1823287300]
[2023-11-26 11:55:31,514 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:55:31,514 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-26 11:55:31,514 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3
[2023-11-26 11:55:31,519 INFO  L229       MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-26 11:55:31,522 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process
[2023-11-26 11:55:32,609 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:32,616 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1035 conjuncts, 13 conjunts are in the unsatisfiable core
[2023-11-26 11:55:32,622 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-11-26 11:55:32,761 INFO  L134       CoverageAnalysis]: Checked inductivity of 23 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked.
[2023-11-26 11:55:32,762 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-26 11:55:32,762 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-26 11:55:32,762 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142288505]
[2023-11-26 11:55:32,762 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-11-26 11:55:32,763 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1823287300]
[2023-11-26 11:55:32,763 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1823287300] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-26 11:55:32,763 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-26 11:55:32,763 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2023-11-26 11:55:32,763 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280843831]
[2023-11-26 11:55:32,763 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-26 11:55:32,764 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-11-26 11:55:32,764 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-26 11:55:32,765 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-11-26 11:55:32,765 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2023-11-26 11:55:32,766 INFO  L87              Difference]: Start difference. First operand 1102 states and 1601 transitions. Second operand  has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 states have internal predecessors, (168), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4)
[2023-11-26 11:55:33,326 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-26 11:55:33,327 INFO  L93              Difference]: Finished difference Result 2242 states and 3238 transitions.
[2023-11-26 11:55:33,327 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-11-26 11:55:33,328 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 states have internal predecessors, (168), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 182
[2023-11-26 11:55:33,328 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-26 11:55:33,335 INFO  L225             Difference]: With dead ends: 2242
[2023-11-26 11:55:33,335 INFO  L226             Difference]: Without dead ends: 1222
[2023-11-26 11:55:33,337 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2023-11-26 11:55:33,338 INFO  L413           NwaCegarLoop]: 547 mSDtfsCounter, 12 mSDsluCounter, 1765 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 2312 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2023-11-26 11:55:33,338 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 2312 Invalid, 494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2023-11-26 11:55:33,341 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1222 states.
[2023-11-26 11:55:33,380 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1222 to 1213.
[2023-11-26 11:55:33,383 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1213 states, 1179 states have (on average 1.4223918575063612) internal successors, (1677), 1192 states have internal predecessors, (1677), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 19 states have call predecessors, (28), 28 states have call successors, (28)
[2023-11-26 11:55:33,390 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1213 states to 1213 states and 1733 transitions.
[2023-11-26 11:55:33,390 INFO  L78                 Accepts]: Start accepts. Automaton has 1213 states and 1733 transitions. Word has length 182
[2023-11-26 11:55:33,391 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-26 11:55:33,391 INFO  L495      AbstractCegarLoop]: Abstraction has 1213 states and 1733 transitions.
[2023-11-26 11:55:33,391 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 states have internal predecessors, (168), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4)
[2023-11-26 11:55:33,391 INFO  L276                IsEmpty]: Start isEmpty. Operand 1213 states and 1733 transitions.
[2023-11-26 11:55:33,394 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 184
[2023-11-26 11:55:33,394 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-26 11:55:33,394 INFO  L195           NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-26 11:55:33,409 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0
[2023-11-26 11:55:33,605 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-26 11:55:33,606 INFO  L420      AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] ===
[2023-11-26 11:55:33,606 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-26 11:55:33,606 INFO  L85        PathProgramCache]: Analyzing trace with hash 317159287, now seen corresponding path program 1 times
[2023-11-26 11:55:33,606 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-26 11:55:33,606 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654238078]
[2023-11-26 11:55:33,606 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:55:33,607 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-26 11:55:33,706 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-11-26 11:55:33,706 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2144672052]
[2023-11-26 11:55:33,707 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:55:33,707 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-26 11:55:33,707 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3
[2023-11-26 11:55:33,708 INFO  L229       MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-26 11:55:33,721 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process
[2023-11-26 11:55:34,453 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:34,460 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1036 conjuncts, 26 conjunts are in the unsatisfiable core
[2023-11-26 11:55:34,466 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-11-26 11:55:34,773 INFO  L134       CoverageAnalysis]: Checked inductivity of 23 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2023-11-26 11:55:34,773 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-26 11:55:34,773 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-26 11:55:34,774 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654238078]
[2023-11-26 11:55:34,774 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-11-26 11:55:34,774 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2144672052]
[2023-11-26 11:55:34,774 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2144672052] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-26 11:55:34,774 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-26 11:55:34,774 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10
[2023-11-26 11:55:34,776 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851378412]
[2023-11-26 11:55:34,776 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-26 11:55:34,777 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2023-11-26 11:55:34,777 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-26 11:55:34,778 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2023-11-26 11:55:34,778 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90
[2023-11-26 11:55:34,778 INFO  L87              Difference]: Start difference. First operand 1213 states and 1733 transitions. Second operand  has 10 states, 10 states have (on average 17.1) internal successors, (171), 10 states have internal predecessors, (171), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4)
[2023-11-26 11:55:35,675 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-26 11:55:35,675 INFO  L93              Difference]: Finished difference Result 2264 states and 3219 transitions.
[2023-11-26 11:55:35,676 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-11-26 11:55:35,676 INFO  L78                 Accepts]: Start accepts. Automaton has  has 10 states, 10 states have (on average 17.1) internal successors, (171), 10 states have internal predecessors, (171), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 183
[2023-11-26 11:55:35,677 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-26 11:55:35,684 INFO  L225             Difference]: With dead ends: 2264
[2023-11-26 11:55:35,685 INFO  L226             Difference]: Without dead ends: 1342
[2023-11-26 11:55:35,687 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90
[2023-11-26 11:55:35,687 INFO  L413           NwaCegarLoop]: 536 mSDtfsCounter, 24 mSDsluCounter, 2656 mSDsCounter, 0 mSdLazyCounter, 797 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 3192 SdHoareTripleChecker+Invalid, 799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 797 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2023-11-26 11:55:35,688 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 3192 Invalid, 799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 797 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2023-11-26 11:55:35,691 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1342 states.
[2023-11-26 11:55:35,727 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1342 to 1324.
[2023-11-26 11:55:35,730 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1324 states, 1290 states have (on average 1.4023255813953488) internal successors, (1809), 1303 states have internal predecessors, (1809), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 19 states have call predecessors, (28), 28 states have call successors, (28)
[2023-11-26 11:55:35,736 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1324 states to 1324 states and 1865 transitions.
[2023-11-26 11:55:35,736 INFO  L78                 Accepts]: Start accepts. Automaton has 1324 states and 1865 transitions. Word has length 183
[2023-11-26 11:55:35,737 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-26 11:55:35,737 INFO  L495      AbstractCegarLoop]: Abstraction has 1324 states and 1865 transitions.
[2023-11-26 11:55:35,738 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 10 states, 10 states have (on average 17.1) internal successors, (171), 10 states have internal predecessors, (171), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4)
[2023-11-26 11:55:35,738 INFO  L276                IsEmpty]: Start isEmpty. Operand 1324 states and 1865 transitions.
[2023-11-26 11:55:35,740 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 185
[2023-11-26 11:55:35,741 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-26 11:55:35,741 INFO  L195           NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-26 11:55:35,755 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0
[2023-11-26 11:55:35,950 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-26 11:55:35,951 INFO  L420      AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] ===
[2023-11-26 11:55:35,951 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-26 11:55:35,952 INFO  L85        PathProgramCache]: Analyzing trace with hash 1829292680, now seen corresponding path program 1 times
[2023-11-26 11:55:35,952 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-26 11:55:35,952 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060406886]
[2023-11-26 11:55:35,952 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:55:35,952 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-26 11:55:36,050 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-11-26 11:55:36,051 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [664928813]
[2023-11-26 11:55:36,051 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:55:36,051 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-26 11:55:36,051 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3
[2023-11-26 11:55:36,052 INFO  L229       MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-26 11:55:36,072 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process
[2023-11-26 11:55:36,929 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:36,936 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1037 conjuncts, 15 conjunts are in the unsatisfiable core
[2023-11-26 11:55:36,941 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-11-26 11:55:37,109 INFO  L134       CoverageAnalysis]: Checked inductivity of 23 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked.
[2023-11-26 11:55:37,109 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-26 11:55:37,109 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-26 11:55:37,109 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060406886]
[2023-11-26 11:55:37,109 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-11-26 11:55:37,110 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [664928813]
[2023-11-26 11:55:37,110 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [664928813] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-26 11:55:37,110 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-26 11:55:37,110 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-11-26 11:55:37,110 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963909996]
[2023-11-26 11:55:37,111 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-26 11:55:37,111 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-11-26 11:55:37,111 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-26 11:55:37,112 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-11-26 11:55:37,112 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-11-26 11:55:37,112 INFO  L87              Difference]: Start difference. First operand 1324 states and 1865 transitions. Second operand  has 7 states, 7 states have (on average 24.285714285714285) internal successors, (170), 7 states have internal predecessors, (170), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4)
[2023-11-26 11:55:37,792 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-26 11:55:37,792 INFO  L93              Difference]: Finished difference Result 2554 states and 3609 transitions.
[2023-11-26 11:55:37,793 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2023-11-26 11:55:37,793 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 24.285714285714285) internal successors, (170), 7 states have internal predecessors, (170), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 184
[2023-11-26 11:55:37,794 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-26 11:55:37,802 INFO  L225             Difference]: With dead ends: 2554
[2023-11-26 11:55:37,802 INFO  L226             Difference]: Without dead ends: 1357
[2023-11-26 11:55:37,807 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2023-11-26 11:55:37,807 INFO  L413           NwaCegarLoop]: 540 mSDtfsCounter, 17 mSDsluCounter, 2163 mSDsCounter, 0 mSdLazyCounter, 662 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 2703 SdHoareTripleChecker+Invalid, 663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2023-11-26 11:55:37,808 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 2703 Invalid, 663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 662 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2023-11-26 11:55:37,813 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1357 states.
[2023-11-26 11:55:37,850 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1357 to 1348.
[2023-11-26 11:55:37,853 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1348 states, 1314 states have (on average 1.404109589041096) internal successors, (1845), 1327 states have internal predecessors, (1845), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 19 states have call predecessors, (28), 28 states have call successors, (28)
[2023-11-26 11:55:37,865 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1348 states to 1348 states and 1901 transitions.
[2023-11-26 11:55:37,866 INFO  L78                 Accepts]: Start accepts. Automaton has 1348 states and 1901 transitions. Word has length 184
[2023-11-26 11:55:37,866 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-26 11:55:37,866 INFO  L495      AbstractCegarLoop]: Abstraction has 1348 states and 1901 transitions.
[2023-11-26 11:55:37,867 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 24.285714285714285) internal successors, (170), 7 states have internal predecessors, (170), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4)
[2023-11-26 11:55:37,867 INFO  L276                IsEmpty]: Start isEmpty. Operand 1348 states and 1901 transitions.
[2023-11-26 11:55:37,869 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 186
[2023-11-26 11:55:37,870 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-26 11:55:37,870 INFO  L195           NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-26 11:55:37,885 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0
[2023-11-26 11:55:38,080 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14
[2023-11-26 11:55:38,080 INFO  L420      AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] ===
[2023-11-26 11:55:38,081 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-26 11:55:38,081 INFO  L85        PathProgramCache]: Analyzing trace with hash 317291056, now seen corresponding path program 1 times
[2023-11-26 11:55:38,081 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-26 11:55:38,081 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521800493]
[2023-11-26 11:55:38,081 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:55:38,082 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-26 11:55:38,222 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-11-26 11:55:38,222 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1909846537]
[2023-11-26 11:55:38,222 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:55:38,223 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-26 11:55:38,223 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3
[2023-11-26 11:55:38,224 INFO  L229       MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-26 11:55:38,252 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process
[2023-11-26 11:55:39,094 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:39,102 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1038 conjuncts, 30 conjunts are in the unsatisfiable core
[2023-11-26 11:55:39,107 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-11-26 11:55:39,442 INFO  L134       CoverageAnalysis]: Checked inductivity of 23 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2023-11-26 11:55:39,442 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-26 11:55:39,443 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-26 11:55:39,443 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521800493]
[2023-11-26 11:55:39,443 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-11-26 11:55:39,443 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1909846537]
[2023-11-26 11:55:39,443 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1909846537] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-26 11:55:39,443 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-26 11:55:39,444 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12
[2023-11-26 11:55:39,444 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642687961]
[2023-11-26 11:55:39,444 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-26 11:55:39,444 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2023-11-26 11:55:39,445 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-26 11:55:39,445 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2023-11-26 11:55:39,446 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132
[2023-11-26 11:55:39,446 INFO  L87              Difference]: Start difference. First operand 1348 states and 1901 transitions. Second operand  has 12 states, 12 states have (on average 14.416666666666666) internal successors, (173), 12 states have internal predecessors, (173), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4)
[2023-11-26 11:55:40,834 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-26 11:55:40,835 INFO  L93              Difference]: Finished difference Result 2394 states and 3386 transitions.
[2023-11-26 11:55:40,835 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2023-11-26 11:55:40,836 INFO  L78                 Accepts]: Start accepts. Automaton has  has 12 states, 12 states have (on average 14.416666666666666) internal successors, (173), 12 states have internal predecessors, (173), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 185
[2023-11-26 11:55:40,836 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-26 11:55:40,844 INFO  L225             Difference]: With dead ends: 2394
[2023-11-26 11:55:40,845 INFO  L226             Difference]: Without dead ends: 1390
[2023-11-26 11:55:40,847 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182
[2023-11-26 11:55:40,848 INFO  L413           NwaCegarLoop]: 522 mSDtfsCounter, 34 mSDsluCounter, 4146 mSDsCounter, 0 mSdLazyCounter, 1501 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 4668 SdHoareTripleChecker+Invalid, 1502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time
[2023-11-26 11:55:40,848 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 4668 Invalid, 1502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1501 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time]
[2023-11-26 11:55:40,851 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1390 states.
[2023-11-26 11:55:40,887 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1390 to 1372.
[2023-11-26 11:55:40,890 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1372 states, 1338 states have (on average 1.405829596412556) internal successors, (1881), 1351 states have internal predecessors, (1881), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 19 states have call predecessors, (28), 28 states have call successors, (28)
[2023-11-26 11:55:40,894 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1372 states to 1372 states and 1937 transitions.
[2023-11-26 11:55:40,894 INFO  L78                 Accepts]: Start accepts. Automaton has 1372 states and 1937 transitions. Word has length 185
[2023-11-26 11:55:40,895 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-26 11:55:40,895 INFO  L495      AbstractCegarLoop]: Abstraction has 1372 states and 1937 transitions.
[2023-11-26 11:55:40,895 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 12 states, 12 states have (on average 14.416666666666666) internal successors, (173), 12 states have internal predecessors, (173), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4)
[2023-11-26 11:55:40,896 INFO  L276                IsEmpty]: Start isEmpty. Operand 1372 states and 1937 transitions.
[2023-11-26 11:55:40,898 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 187
[2023-11-26 11:55:40,898 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-26 11:55:40,899 INFO  L195           NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-26 11:55:40,913 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0
[2023-11-26 11:55:41,108 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15
[2023-11-26 11:55:41,108 INFO  L420      AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] ===
[2023-11-26 11:55:41,109 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-26 11:55:41,109 INFO  L85        PathProgramCache]: Analyzing trace with hash 2126061156, now seen corresponding path program 1 times
[2023-11-26 11:55:41,109 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-26 11:55:41,109 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727095605]
[2023-11-26 11:55:41,109 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:55:41,109 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-26 11:55:41,241 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-11-26 11:55:41,242 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1884001612]
[2023-11-26 11:55:41,242 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:55:41,242 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-26 11:55:41,242 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3
[2023-11-26 11:55:41,248 INFO  L229       MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-26 11:55:41,250 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process
[2023-11-26 11:55:42,129 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:42,138 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1039 conjuncts, 13 conjunts are in the unsatisfiable core
[2023-11-26 11:55:42,143 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-11-26 11:55:42,244 INFO  L134       CoverageAnalysis]: Checked inductivity of 23 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked.
[2023-11-26 11:55:42,244 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-26 11:55:42,244 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-26 11:55:42,244 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727095605]
[2023-11-26 11:55:42,245 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-11-26 11:55:42,245 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1884001612]
[2023-11-26 11:55:42,245 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1884001612] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-26 11:55:42,245 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-26 11:55:42,245 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-11-26 11:55:42,245 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883115512]
[2023-11-26 11:55:42,246 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-26 11:55:42,246 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-11-26 11:55:42,246 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-26 11:55:42,247 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-11-26 11:55:42,247 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-11-26 11:55:42,247 INFO  L87              Difference]: Start difference. First operand 1372 states and 1937 transitions. Second operand  has 7 states, 7 states have (on average 24.571428571428573) internal successors, (172), 7 states have internal predecessors, (172), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4)
[2023-11-26 11:55:42,881 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-26 11:55:42,881 INFO  L93              Difference]: Finished difference Result 2647 states and 3743 transitions.
[2023-11-26 11:55:42,882 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2023-11-26 11:55:42,882 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 24.571428571428573) internal successors, (172), 7 states have internal predecessors, (172), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 186
[2023-11-26 11:55:42,882 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-26 11:55:42,891 INFO  L225             Difference]: With dead ends: 2647
[2023-11-26 11:55:42,891 INFO  L226             Difference]: Without dead ends: 1414
[2023-11-26 11:55:42,893 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90
[2023-11-26 11:55:42,894 INFO  L413           NwaCegarLoop]: 536 mSDtfsCounter, 46 mSDsluCounter, 2246 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 2782 SdHoareTripleChecker+Invalid, 607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2023-11-26 11:55:42,894 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 2782 Invalid, 607 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 602 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2023-11-26 11:55:42,897 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1414 states.
[2023-11-26 11:55:42,931 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1414 to 1390.
[2023-11-26 11:55:42,934 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1390 states, 1356 states have (on average 1.407079646017699) internal successors, (1908), 1369 states have internal predecessors, (1908), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 19 states have call predecessors, (28), 28 states have call successors, (28)
[2023-11-26 11:55:42,938 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1390 states to 1390 states and 1964 transitions.
[2023-11-26 11:55:42,939 INFO  L78                 Accepts]: Start accepts. Automaton has 1390 states and 1964 transitions. Word has length 186
[2023-11-26 11:55:42,939 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-26 11:55:42,940 INFO  L495      AbstractCegarLoop]: Abstraction has 1390 states and 1964 transitions.
[2023-11-26 11:55:42,940 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 24.571428571428573) internal successors, (172), 7 states have internal predecessors, (172), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4)
[2023-11-26 11:55:42,940 INFO  L276                IsEmpty]: Start isEmpty. Operand 1390 states and 1964 transitions.
[2023-11-26 11:55:42,944 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 187
[2023-11-26 11:55:42,944 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-26 11:55:42,945 INFO  L195           NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-26 11:55:42,960 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0
[2023-11-26 11:55:43,155 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16
[2023-11-26 11:55:43,156 INFO  L420      AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] ===
[2023-11-26 11:55:43,156 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-26 11:55:43,157 INFO  L85        PathProgramCache]: Analyzing trace with hash 1256704328, now seen corresponding path program 1 times
[2023-11-26 11:55:43,157 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-26 11:55:43,157 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95699872]
[2023-11-26 11:55:43,157 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:55:43,157 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-26 11:55:43,247 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-11-26 11:55:43,248 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [590368381]
[2023-11-26 11:55:43,248 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:55:43,248 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-26 11:55:43,248 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3
[2023-11-26 11:55:43,249 INFO  L229       MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-26 11:55:43,267 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process
[2023-11-26 11:55:44,140 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:44,147 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1037 conjuncts, 18 conjunts are in the unsatisfiable core
[2023-11-26 11:55:44,154 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-11-26 11:55:44,311 INFO  L134       CoverageAnalysis]: Checked inductivity of 23 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2023-11-26 11:55:44,311 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-26 11:55:44,311 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-26 11:55:44,311 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95699872]
[2023-11-26 11:55:44,311 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-11-26 11:55:44,312 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [590368381]
[2023-11-26 11:55:44,312 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [590368381] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-26 11:55:44,312 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-26 11:55:44,312 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10
[2023-11-26 11:55:44,312 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581145221]
[2023-11-26 11:55:44,313 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-26 11:55:44,313 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2023-11-26 11:55:44,313 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-26 11:55:44,314 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2023-11-26 11:55:44,314 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90
[2023-11-26 11:55:44,315 INFO  L87              Difference]: Start difference. First operand 1390 states and 1964 transitions. Second operand  has 10 states, 10 states have (on average 17.4) internal successors, (174), 10 states have internal predecessors, (174), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4)
[2023-11-26 11:55:45,149 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-26 11:55:45,149 INFO  L93              Difference]: Finished difference Result 2684 states and 3799 transitions.
[2023-11-26 11:55:45,150 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2023-11-26 11:55:45,150 INFO  L78                 Accepts]: Start accepts. Automaton has  has 10 states, 10 states have (on average 17.4) internal successors, (174), 10 states have internal predecessors, (174), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 186
[2023-11-26 11:55:45,151 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-26 11:55:45,159 INFO  L225             Difference]: With dead ends: 2684
[2023-11-26 11:55:45,159 INFO  L226             Difference]: Without dead ends: 1429
[2023-11-26 11:55:45,162 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182
[2023-11-26 11:55:45,162 INFO  L413           NwaCegarLoop]: 534 mSDtfsCounter, 58 mSDsluCounter, 3804 mSDsCounter, 0 mSdLazyCounter, 709 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 4338 SdHoareTripleChecker+Invalid, 710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 709 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2023-11-26 11:55:45,163 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 4338 Invalid, 710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 709 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2023-11-26 11:55:45,165 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1429 states.
[2023-11-26 11:55:45,199 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1429 to 1390.
[2023-11-26 11:55:45,202 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1390 states, 1356 states have (on average 1.4026548672566372) internal successors, (1902), 1369 states have internal predecessors, (1902), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 19 states have call predecessors, (28), 28 states have call successors, (28)
[2023-11-26 11:55:45,205 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1390 states to 1390 states and 1958 transitions.
[2023-11-26 11:55:45,206 INFO  L78                 Accepts]: Start accepts. Automaton has 1390 states and 1958 transitions. Word has length 186
[2023-11-26 11:55:45,206 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-26 11:55:45,206 INFO  L495      AbstractCegarLoop]: Abstraction has 1390 states and 1958 transitions.
[2023-11-26 11:55:45,207 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 10 states, 10 states have (on average 17.4) internal successors, (174), 10 states have internal predecessors, (174), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4)
[2023-11-26 11:55:45,207 INFO  L276                IsEmpty]: Start isEmpty. Operand 1390 states and 1958 transitions.
[2023-11-26 11:55:45,210 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 187
[2023-11-26 11:55:45,210 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-26 11:55:45,210 INFO  L195           NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-26 11:55:45,225 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0
[2023-11-26 11:55:45,425 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17
[2023-11-26 11:55:45,426 INFO  L420      AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] ===
[2023-11-26 11:55:45,426 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-26 11:55:45,426 INFO  L85        PathProgramCache]: Analyzing trace with hash 1193989932, now seen corresponding path program 1 times
[2023-11-26 11:55:45,426 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-26 11:55:45,427 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767197466]
[2023-11-26 11:55:45,427 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:55:45,427 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-26 11:55:45,518 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-11-26 11:55:45,518 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [245072144]
[2023-11-26 11:55:45,518 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:55:45,519 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-26 11:55:45,519 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3
[2023-11-26 11:55:45,520 INFO  L229       MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-26 11:55:45,548 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process
[2023-11-26 11:55:46,591 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:46,598 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1035 conjuncts, 13 conjunts are in the unsatisfiable core
[2023-11-26 11:55:46,603 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-11-26 11:55:46,632 INFO  L134       CoverageAnalysis]: Checked inductivity of 23 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked.
[2023-11-26 11:55:46,632 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-26 11:55:46,632 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-26 11:55:46,632 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767197466]
[2023-11-26 11:55:46,632 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-11-26 11:55:46,633 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [245072144]
[2023-11-26 11:55:46,633 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [245072144] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-26 11:55:46,633 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-26 11:55:46,633 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-26 11:55:46,633 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883497637]
[2023-11-26 11:55:46,634 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-26 11:55:46,634 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-26 11:55:46,634 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-26 11:55:46,635 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-26 11:55:46,635 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-26 11:55:46,635 INFO  L87              Difference]: Start difference. First operand 1390 states and 1958 transitions. Second operand  has 4 states, 3 states have (on average 58.0) internal successors, (174), 4 states have internal predecessors, (174), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4)
[2023-11-26 11:55:46,707 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-26 11:55:46,707 INFO  L93              Difference]: Finished difference Result 2607 states and 3688 transitions.
[2023-11-26 11:55:46,707 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-11-26 11:55:46,708 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 3 states have (on average 58.0) internal successors, (174), 4 states have internal predecessors, (174), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 186
[2023-11-26 11:55:46,708 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-26 11:55:46,716 INFO  L225             Difference]: With dead ends: 2607
[2023-11-26 11:55:46,717 INFO  L226             Difference]: Without dead ends: 1392
[2023-11-26 11:55:46,719 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-11-26 11:55:46,720 INFO  L413           NwaCegarLoop]: 555 mSDtfsCounter, 1 mSDsluCounter, 1103 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1658 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-26 11:55:46,720 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1658 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-26 11:55:46,723 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1392 states.
[2023-11-26 11:55:46,762 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1392 to 1392.
[2023-11-26 11:55:46,766 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1392 states, 1357 states have (on average 1.4030950626381724) internal successors, (1904), 1371 states have internal predecessors, (1904), 28 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (34), 19 states have call predecessors, (34), 28 states have call successors, (34)
[2023-11-26 11:55:46,769 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1392 states to 1392 states and 1966 transitions.
[2023-11-26 11:55:46,770 INFO  L78                 Accepts]: Start accepts. Automaton has 1392 states and 1966 transitions. Word has length 186
[2023-11-26 11:55:46,770 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-26 11:55:46,770 INFO  L495      AbstractCegarLoop]: Abstraction has 1392 states and 1966 transitions.
[2023-11-26 11:55:46,770 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 3 states have (on average 58.0) internal successors, (174), 4 states have internal predecessors, (174), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4)
[2023-11-26 11:55:46,771 INFO  L276                IsEmpty]: Start isEmpty. Operand 1392 states and 1966 transitions.
[2023-11-26 11:55:46,773 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 191
[2023-11-26 11:55:46,773 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-26 11:55:46,774 INFO  L195           NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-26 11:55:46,785 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0
[2023-11-26 11:55:46,985 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-26 11:55:46,985 INFO  L420      AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] ===
[2023-11-26 11:55:46,986 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-26 11:55:46,986 INFO  L85        PathProgramCache]: Analyzing trace with hash -967745596, now seen corresponding path program 1 times
[2023-11-26 11:55:46,986 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-26 11:55:46,986 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183298422]
[2023-11-26 11:55:46,987 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:55:46,987 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-26 11:55:47,088 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-11-26 11:55:47,088 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [979938858]
[2023-11-26 11:55:47,088 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:55:47,089 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-26 11:55:47,089 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3
[2023-11-26 11:55:47,090 INFO  L229       MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-26 11:55:47,116 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process
[2023-11-26 11:55:48,198 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:48,206 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1095 conjuncts, 33 conjunts are in the unsatisfiable core
[2023-11-26 11:55:48,211 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-11-26 11:55:48,259 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2023-11-26 11:55:48,285 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11
[2023-11-26 11:55:48,775 INFO  L349             Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-11-26 11:55:48,776 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 23
[2023-11-26 11:55:48,948 INFO  L134       CoverageAnalysis]: Checked inductivity of 45 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked.
[2023-11-26 11:55:48,949 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-26 11:55:48,949 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-26 11:55:48,949 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183298422]
[2023-11-26 11:55:48,949 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-11-26 11:55:48,950 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [979938858]
[2023-11-26 11:55:48,950 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [979938858] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-26 11:55:48,950 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-26 11:55:48,950 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11
[2023-11-26 11:55:48,951 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918214896]
[2023-11-26 11:55:48,951 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-26 11:55:48,951 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2023-11-26 11:55:48,952 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-26 11:55:48,952 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2023-11-26 11:55:48,953 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132
[2023-11-26 11:55:48,953 INFO  L87              Difference]: Start difference. First operand 1392 states and 1966 transitions. Second operand  has 12 states, 12 states have (on average 14.416666666666666) internal successors, (173), 11 states have internal predecessors, (173), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4)
[2023-11-26 11:55:53,763 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-26 11:55:53,763 INFO  L93              Difference]: Finished difference Result 2667 states and 3766 transitions.
[2023-11-26 11:55:53,764 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2023-11-26 11:55:53,764 INFO  L78                 Accepts]: Start accepts. Automaton has  has 12 states, 12 states have (on average 14.416666666666666) internal successors, (173), 11 states have internal predecessors, (173), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 190
[2023-11-26 11:55:53,764 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-26 11:55:53,772 INFO  L225             Difference]: With dead ends: 2667
[2023-11-26 11:55:53,773 INFO  L226             Difference]: Without dead ends: 1406
[2023-11-26 11:55:53,775 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=88, Invalid=292, Unknown=0, NotChecked=0, Total=380
[2023-11-26 11:55:53,776 INFO  L413           NwaCegarLoop]: 495 mSDtfsCounter, 747 mSDsluCounter, 3656 mSDsCounter, 0 mSdLazyCounter, 1538 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 752 SdHoareTripleChecker+Valid, 4151 SdHoareTripleChecker+Invalid, 1546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time
[2023-11-26 11:55:53,776 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [752 Valid, 4151 Invalid, 1546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1538 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time]
[2023-11-26 11:55:53,779 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1406 states.
[2023-11-26 11:55:53,814 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1406 to 1399.
[2023-11-26 11:55:53,817 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1399 states, 1364 states have (on average 1.401026392961877) internal successors, (1911), 1378 states have internal predecessors, (1911), 28 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (34), 19 states have call predecessors, (34), 28 states have call successors, (34)
[2023-11-26 11:55:53,820 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1399 states to 1399 states and 1973 transitions.
[2023-11-26 11:55:53,821 INFO  L78                 Accepts]: Start accepts. Automaton has 1399 states and 1973 transitions. Word has length 190
[2023-11-26 11:55:53,821 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-26 11:55:53,821 INFO  L495      AbstractCegarLoop]: Abstraction has 1399 states and 1973 transitions.
[2023-11-26 11:55:53,821 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 12 states, 12 states have (on average 14.416666666666666) internal successors, (173), 11 states have internal predecessors, (173), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4)
[2023-11-26 11:55:53,822 INFO  L276                IsEmpty]: Start isEmpty. Operand 1399 states and 1973 transitions.
[2023-11-26 11:55:53,824 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 191
[2023-11-26 11:55:53,825 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-26 11:55:53,825 INFO  L195           NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-26 11:55:53,842 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0
[2023-11-26 11:55:54,037 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-26 11:55:54,038 INFO  L420      AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] ===
[2023-11-26 11:55:54,038 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-26 11:55:54,038 INFO  L85        PathProgramCache]: Analyzing trace with hash 322058406, now seen corresponding path program 1 times
[2023-11-26 11:55:54,039 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-26 11:55:54,039 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153870197]
[2023-11-26 11:55:54,039 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:55:54,039 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-26 11:55:54,180 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-11-26 11:55:54,180 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [41457214]
[2023-11-26 11:55:54,180 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:55:54,180 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-26 11:55:54,181 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3
[2023-11-26 11:55:54,182 INFO  L229       MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-26 11:55:54,208 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process
[2023-11-26 11:55:55,209 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:55,216 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1097 conjuncts, 13 conjunts are in the unsatisfiable core
[2023-11-26 11:55:55,220 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-11-26 11:55:55,378 INFO  L134       CoverageAnalysis]: Checked inductivity of 45 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked.
[2023-11-26 11:55:55,379 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-26 11:55:55,379 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-26 11:55:55,379 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153870197]
[2023-11-26 11:55:55,379 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-11-26 11:55:55,379 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [41457214]
[2023-11-26 11:55:55,380 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [41457214] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-26 11:55:55,380 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-26 11:55:55,380 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2023-11-26 11:55:55,380 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292113606]
[2023-11-26 11:55:55,380 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-26 11:55:55,381 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-11-26 11:55:55,381 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-26 11:55:55,382 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-11-26 11:55:55,382 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2023-11-26 11:55:55,383 INFO  L87              Difference]: Start difference. First operand 1399 states and 1973 transitions. Second operand  has 6 states, 6 states have (on average 28.833333333333332) internal successors, (173), 6 states have internal predecessors, (173), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4)
[2023-11-26 11:55:55,883 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-26 11:55:55,883 INFO  L93              Difference]: Finished difference Result 2674 states and 3780 transitions.
[2023-11-26 11:55:55,884 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-11-26 11:55:55,884 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 28.833333333333332) internal successors, (173), 6 states have internal predecessors, (173), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 190
[2023-11-26 11:55:55,884 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-26 11:55:55,892 INFO  L225             Difference]: With dead ends: 2674
[2023-11-26 11:55:55,892 INFO  L226             Difference]: Without dead ends: 1417
[2023-11-26 11:55:55,895 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2023-11-26 11:55:55,896 INFO  L413           NwaCegarLoop]: 551 mSDtfsCounter, 10 mSDsluCounter, 1768 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 2319 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2023-11-26 11:55:55,896 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 2319 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 506 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2023-11-26 11:55:55,899 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1417 states.
[2023-11-26 11:55:55,937 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1417 to 1408.
[2023-11-26 11:55:55,940 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1408 states, 1373 states have (on average 1.4005826656955571) internal successors, (1923), 1387 states have internal predecessors, (1923), 28 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (34), 19 states have call predecessors, (34), 28 states have call successors, (34)
[2023-11-26 11:55:55,944 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1408 states to 1408 states and 1985 transitions.
[2023-11-26 11:55:55,944 INFO  L78                 Accepts]: Start accepts. Automaton has 1408 states and 1985 transitions. Word has length 190
[2023-11-26 11:55:55,944 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-26 11:55:55,944 INFO  L495      AbstractCegarLoop]: Abstraction has 1408 states and 1985 transitions.
[2023-11-26 11:55:55,945 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 28.833333333333332) internal successors, (173), 6 states have internal predecessors, (173), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4)
[2023-11-26 11:55:55,945 INFO  L276                IsEmpty]: Start isEmpty. Operand 1408 states and 1985 transitions.
[2023-11-26 11:55:55,947 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 191
[2023-11-26 11:55:55,947 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-26 11:55:55,948 INFO  L195           NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-26 11:55:55,964 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0
[2023-11-26 11:55:56,159 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-26 11:55:56,160 INFO  L420      AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] ===
[2023-11-26 11:55:56,160 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-26 11:55:56,160 INFO  L85        PathProgramCache]: Analyzing trace with hash -289210652, now seen corresponding path program 1 times
[2023-11-26 11:55:56,160 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-26 11:55:56,160 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200823714]
[2023-11-26 11:55:56,160 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:55:56,160 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-26 11:55:56,271 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-11-26 11:55:56,271 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [513122495]
[2023-11-26 11:55:56,271 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:55:56,271 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-26 11:55:56,272 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3
[2023-11-26 11:55:56,273 INFO  L229       MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-26 11:55:56,304 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e5bf91c-5638-48d5-ba74-2477ff971e79/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process
[2023-11-26 11:55:57,582 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:55:57,591 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1095 conjuncts, 156 conjunts are in the unsatisfiable core
[2023-11-26 11:55:57,605 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-11-26 11:55:57,610 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5
[2023-11-26 11:55:57,885 INFO  L349             Elim1Store]: treesize reduction 32, result has 30.4 percent of original size
[2023-11-26 11:55:57,886 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 31 treesize of output 20
[2023-11-26 11:55:57,894 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2023-11-26 11:55:57,902 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1
[2023-11-26 11:55:57,960 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3
[2023-11-26 11:55:57,965 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4
[2023-11-26 11:55:58,088 INFO  L349             Elim1Store]: treesize reduction 19, result has 20.8 percent of original size
[2023-11-26 11:55:58,088 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 38
[2023-11-26 11:55:58,093 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 11