./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/chl-file-item-subst.wvr.c --full-output --architecture 32bit


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


Checking for overflows
Using default analysis
Version 4fc63b2a
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_f8b35625-2e09-4bae-ba76-79b580c4962c/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8b35625-2e09-4bae-ba76-79b580c4962c/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8b35625-2e09-4bae-ba76-79b580c4962c/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8b35625-2e09-4bae-ba76-79b580c4962c/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/chl-file-item-subst.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8b35625-2e09-4bae-ba76-79b580c4962c/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8b35625-2e09-4bae-ba76-79b580c4962c/bin/utaipan-verify-DbMuA5NWw2 --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d7ba2cbd8ed9f48aa977924dd556bad66f28ba8aaa41d75f8db9183096d20ba1
--- Real Ultimate output ---
This is Ultimate 0.2.5-dev-4fc63b2
[2024-11-02 11:24:41,799 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-02 11:24:41,904 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8b35625-2e09-4bae-ba76-79b580c4962c/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Overflow-32bit-Taipan_Default.epf
[2024-11-02 11:24:41,911 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-02 11:24:41,911 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-02 11:24:41,944 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-02 11:24:41,945 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-02 11:24:41,945 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-02 11:24:41,946 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-02 11:24:41,947 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-02 11:24:41,947 INFO  L153        SettingsManager]:  * User list type=DISABLED
[2024-11-02 11:24:41,948 INFO  L151        SettingsManager]: Preferences of Abstract Interpretation differ from their defaults:
[2024-11-02 11:24:41,948 INFO  L153        SettingsManager]:  * Explicit value domain=true
[2024-11-02 11:24:41,949 INFO  L153        SettingsManager]:  * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain
[2024-11-02 11:24:41,949 INFO  L153        SettingsManager]:  * Octagon Domain=false
[2024-11-02 11:24:41,950 INFO  L153        SettingsManager]:  * Abstract domain=CompoundDomain
[2024-11-02 11:24:41,950 INFO  L153        SettingsManager]:  * Check feasibility of abstract posts with an SMT solver=true
[2024-11-02 11:24:41,950 INFO  L153        SettingsManager]:  * Use the RCFG-of-the-future interface=true
[2024-11-02 11:24:41,951 INFO  L153        SettingsManager]:  * Interval Domain=false
[2024-11-02 11:24:41,951 INFO  L151        SettingsManager]: Preferences of Sifa differ from their defaults:
[2024-11-02 11:24:41,952 INFO  L153        SettingsManager]:  * Call Summarizer=TopInputCallSummarizer
[2024-11-02 11:24:41,953 INFO  L153        SettingsManager]:  * Simplification Technique=POLY_PAC
[2024-11-02 11:24:41,953 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-02 11:24:41,954 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-02 11:24:41,954 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-02 11:24:41,955 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-02 11:24:41,955 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-02 11:24:41,955 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-02 11:24:41,956 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-02 11:24:41,956 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-02 11:24:41,957 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-02 11:24:41,957 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-02 11:24:41,957 INFO  L153        SettingsManager]:  * Check absence of signed integer overflows=ASSERTandASSUME
[2024-11-02 11:24:41,958 INFO  L153        SettingsManager]:  * Check unreachability of reach_error function=false
[2024-11-02 11:24:41,958 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-02 11:24:41,958 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-02 11:24:41,959 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-02 11:24:41,959 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-02 11:24:41,959 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-02 11:24:41,960 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-02 11:24:41,960 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2024-11-02 11:24:41,961 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-02 11:24:41,961 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-02 11:24:41,962 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-02 11:24:41,962 INFO  L153        SettingsManager]:  * Trace refinement strategy=SIFA_TAIPAN
[2024-11-02 11:24:41,962 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-02 11:24:41,963 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-02 11:24:41,963 INFO  L153        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2024-11-02 11:24:41,963 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-02 11:24:41,963 INFO  L153        SettingsManager]:  * Abstract interpretation Mode=USE_PREDICATES
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_f8b35625-2e09-4bae-ba76-79b580c4962c/bin/utaipan-verify-DbMuA5NWw2/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_f8b35625-2e09-4bae-ba76-79b580c4962c/bin/utaipan-verify-DbMuA5NWw2
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 -> Taipan
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 -> d7ba2cbd8ed9f48aa977924dd556bad66f28ba8aaa41d75f8db9183096d20ba1
[2024-11-02 11:24:42,270 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-02 11:24:42,304 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-02 11:24:42,307 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-02 11:24:42,308 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-02 11:24:42,309 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-02 11:24:42,310 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8b35625-2e09-4bae-ba76-79b580c4962c/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/weaver/chl-file-item-subst.wvr.c
Unable to find full path for "g++"
[2024-11-02 11:24:44,441 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-02 11:24:44,631 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-02 11:24:44,632 INFO  L180              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8b35625-2e09-4bae-ba76-79b580c4962c/sv-benchmarks/c/weaver/chl-file-item-subst.wvr.c
[2024-11-02 11:24:44,643 INFO  L427              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8b35625-2e09-4bae-ba76-79b580c4962c/bin/utaipan-verify-DbMuA5NWw2/data/50fc9557b/c6af313b77bd4ad6adf9fd0ec87ff3c3/FLAG207d061e9
[2024-11-02 11:24:44,659 INFO  L435              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8b35625-2e09-4bae-ba76-79b580c4962c/bin/utaipan-verify-DbMuA5NWw2/data/50fc9557b/c6af313b77bd4ad6adf9fd0ec87ff3c3
[2024-11-02 11:24:44,662 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-02 11:24:44,664 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-02 11:24:44,666 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-02 11:24:44,666 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-02 11:24:44,672 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-02 11:24:44,673 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:24:44" (1/1) ...
[2024-11-02 11:24:44,674 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@500d57d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:24:44, skipping insertion in model container
[2024-11-02 11:24:44,675 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:24:44" (1/1) ...
[2024-11-02 11:24:44,700 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-02 11:24:44,957 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-02 11:24:44,974 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-02 11:24:45,018 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-02 11:24:45,046 INFO  L204         MainTranslator]: Completed translation
[2024-11-02 11:24:45,047 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:24:45 WrapperNode
[2024-11-02 11:24:45,047 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-02 11:24:45,048 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-02 11:24:45,048 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-02 11:24:45,049 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-02 11:24:45,057 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:24:45" (1/1) ...
[2024-11-02 11:24:45,066 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:24:45" (1/1) ...
[2024-11-02 11:24:45,095 INFO  L138                Inliner]: procedures = 22, calls = 17, calls flagged for inlining = 10, calls inlined = 14, statements flattened = 240
[2024-11-02 11:24:45,096 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-02 11:24:45,097 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-02 11:24:45,097 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-02 11:24:45,097 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-02 11:24:45,110 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:24:45" (1/1) ...
[2024-11-02 11:24:45,111 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:24:45" (1/1) ...
[2024-11-02 11:24:45,114 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:24:45" (1/1) ...
[2024-11-02 11:24:45,114 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:24:45" (1/1) ...
[2024-11-02 11:24:45,121 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:24:45" (1/1) ...
[2024-11-02 11:24:45,124 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:24:45" (1/1) ...
[2024-11-02 11:24:45,126 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:24:45" (1/1) ...
[2024-11-02 11:24:45,128 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:24:45" (1/1) ...
[2024-11-02 11:24:45,131 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-02 11:24:45,132 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-02 11:24:45,133 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-02 11:24:45,133 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-02 11:24:45,134 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:24:45" (1/1) ...
[2024-11-02 11:24:45,145 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2024-11-02 11:24:45,159 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8b35625-2e09-4bae-ba76-79b580c4962c/bin/utaipan-verify-DbMuA5NWw2/z3
[2024-11-02 11:24:45,177 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8b35625-2e09-4bae-ba76-79b580c4962c/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2024-11-02 11:24:45,179 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8b35625-2e09-4bae-ba76-79b580c4962c/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2024-11-02 11:24:45,207 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-02 11:24:45,207 INFO  L130     BoogieDeclarations]: Found specification of procedure thread1
[2024-11-02 11:24:45,207 INFO  L138     BoogieDeclarations]: Found implementation of procedure thread1
[2024-11-02 11:24:45,207 INFO  L130     BoogieDeclarations]: Found specification of procedure thread2
[2024-11-02 11:24:45,207 INFO  L138     BoogieDeclarations]: Found implementation of procedure thread2
[2024-11-02 11:24:45,207 INFO  L130     BoogieDeclarations]: Found specification of procedure thread3
[2024-11-02 11:24:45,208 INFO  L138     BoogieDeclarations]: Found implementation of procedure thread3
[2024-11-02 11:24:45,208 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2024-11-02 11:24:45,208 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-02 11:24:45,208 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-02 11:24:45,210 WARN  L207             CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement.
[2024-11-02 11:24:45,333 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-02 11:24:45,336 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-02 11:24:45,901 INFO  L283             CfgBuilder]: Omitted future-live optimization because the input is a concurrent program.
[2024-11-02 11:24:45,901 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-02 11:24:46,325 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-02 11:24:46,325 INFO  L316             CfgBuilder]: Removed 0 assume(true) statements.
[2024-11-02 11:24:46,326 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:24:46 BoogieIcfgContainer
[2024-11-02 11:24:46,326 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-02 11:24:46,329 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-02 11:24:46,329 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-02 11:24:46,333 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-02 11:24:46,333 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 11:24:44" (1/3) ...
[2024-11-02 11:24:46,334 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61a2fb00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:24:46, skipping insertion in model container
[2024-11-02 11:24:46,335 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:24:45" (2/3) ...
[2024-11-02 11:24:46,335 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61a2fb00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:24:46, skipping insertion in model container
[2024-11-02 11:24:46,335 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:24:46" (3/3) ...
[2024-11-02 11:24:46,337 INFO  L112   eAbstractionObserver]: Analyzing ICFG chl-file-item-subst.wvr.c
[2024-11-02 11:24:46,361 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-02 11:24:46,361 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations.
[2024-11-02 11:24:46,361 INFO  L489   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2024-11-02 11:24:46,466 INFO  L143    ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions.
[2024-11-02 11:24:46,527 INFO  L113   iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 99 places, 107 transitions, 235 flow
[2024-11-02 11:24:48,559 INFO  L135   iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result  has 36980 states, 36638 states have (on average 4.0598558873300945) internal successors, (148745), 36979 states have internal predecessors, (148745), 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)
[2024-11-02 11:24:48,604 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-02 11:24:48,614 INFO  L333      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, 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;@5f5bec1c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-02 11:24:48,614 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 39 error locations.
[2024-11-02 11:24:48,852 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 36980 states, 36638 states have (on average 4.0598558873300945) internal successors, (148745), 36979 states have internal predecessors, (148745), 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)
[2024-11-02 11:24:48,867 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2024-11-02 11:24:48,870 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 11:24:48,871 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-02 11:24:48,872 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] ===
[2024-11-02 11:24:48,877 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 11:24:48,879 INFO  L85        PathProgramCache]: Analyzing trace with hash -1933473321, now seen corresponding path program 1 times
[2024-11-02 11:24:48,891 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2024-11-02 11:24:48,891 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165821745]
[2024-11-02 11:24:48,892 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 11:24:48,893 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-02 11:24:49,068 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 11:24:49,313 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-02 11:24:49,314 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2024-11-02 11:24:49,314 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165821745]
[2024-11-02 11:24:49,315 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165821745] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-02 11:24:49,315 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-02 11:24:49,315 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-02 11:24:49,321 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142305127]
[2024-11-02 11:24:49,321 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-02 11:24:49,330 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-02 11:24:49,330 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2024-11-02 11:24:49,362 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-02 11:24:49,363 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-02 11:24:49,431 INFO  L87              Difference]: Start difference. First operand  has 36980 states, 36638 states have (on average 4.0598558873300945) internal successors, (148745), 36979 states have internal predecessors, (148745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand  has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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)
[2024-11-02 11:24:51,410 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 11:24:51,410 INFO  L93              Difference]: Finished difference Result 65522 states and 259482 transitions.
[2024-11-02 11:24:51,411 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-02 11:24:51,413 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 9
[2024-11-02 11:24:51,413 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 11:24:52,416 INFO  L225             Difference]: With dead ends: 65522
[2024-11-02 11:24:52,416 INFO  L226             Difference]: Without dead ends: 48228
[2024-11-02 11:24:52,459 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-02 11:24:52,464 INFO  L432           NwaCegarLoop]: 137 mSDtfsCounter, 157 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-02 11:24:52,466 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 226 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-02 11:24:52,692 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 48228 states.
[2024-11-02 11:24:54,989 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 48228 to 41198.
[2024-11-02 11:24:55,237 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 41198 states, 40905 states have (on average 4.068377948906002) internal successors, (166417), 41197 states have internal predecessors, (166417), 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)
[2024-11-02 11:24:55,814 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 41198 states to 41198 states and 166417 transitions.
[2024-11-02 11:24:55,910 INFO  L78                 Accepts]: Start accepts. Automaton has 41198 states and 166417 transitions. Word has length 9
[2024-11-02 11:24:55,911 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 11:24:55,911 INFO  L471      AbstractCegarLoop]: Abstraction has 41198 states and 166417 transitions.
[2024-11-02 11:24:55,912 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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)
[2024-11-02 11:24:55,912 INFO  L276                IsEmpty]: Start isEmpty. Operand 41198 states and 166417 transitions.
[2024-11-02 11:24:55,917 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2024-11-02 11:24:55,918 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 11:24:55,918 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-02 11:24:55,918 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-02 11:24:55,923 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] ===
[2024-11-02 11:24:55,923 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 11:24:55,924 INFO  L85        PathProgramCache]: Analyzing trace with hash 191870000, now seen corresponding path program 1 times
[2024-11-02 11:24:55,924 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2024-11-02 11:24:55,924 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296494803]
[2024-11-02 11:24:55,924 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 11:24:55,925 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-02 11:24:55,970 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 11:24:56,099 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-02 11:24:56,100 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2024-11-02 11:24:56,100 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296494803]
[2024-11-02 11:24:56,101 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296494803] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-02 11:24:56,101 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-02 11:24:56,101 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-02 11:24:56,102 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459371222]
[2024-11-02 11:24:56,102 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-02 11:24:56,107 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-02 11:24:56,108 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2024-11-02 11:24:56,109 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-02 11:24:56,109 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-02 11:24:56,110 INFO  L87              Difference]: Start difference. First operand 41198 states and 166417 transitions. Second operand  has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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)
[2024-11-02 11:24:57,386 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 11:24:57,386 INFO  L93              Difference]: Finished difference Result 41198 states and 166417 transitions.
[2024-11-02 11:24:57,387 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-02 11:24:57,387 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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 10
[2024-11-02 11:24:57,388 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 11:24:57,820 INFO  L225             Difference]: With dead ends: 41198
[2024-11-02 11:24:57,820 INFO  L226             Difference]: Without dead ends: 39792
[2024-11-02 11:24:57,840 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-02 11:24:57,842 INFO  L432           NwaCegarLoop]: 91 mSDtfsCounter, 174 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-02 11:24:57,843 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 138 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-02 11:24:57,913 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 39792 states.
[2024-11-02 11:24:59,619 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 39792 to 39792.
[2024-11-02 11:24:59,690 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 39792 states, 39548 states have (on average 4.07087589764337) internal successors, (160995), 39791 states have internal predecessors, (160995), 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)
[2024-11-02 11:24:59,900 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 39792 states to 39792 states and 160995 transitions.
[2024-11-02 11:24:59,944 INFO  L78                 Accepts]: Start accepts. Automaton has 39792 states and 160995 transitions. Word has length 10
[2024-11-02 11:24:59,944 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 11:24:59,944 INFO  L471      AbstractCegarLoop]: Abstraction has 39792 states and 160995 transitions.
[2024-11-02 11:24:59,944 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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)
[2024-11-02 11:24:59,945 INFO  L276                IsEmpty]: Start isEmpty. Operand 39792 states and 160995 transitions.
[2024-11-02 11:24:59,947 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2024-11-02 11:24:59,947 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 11:24:59,947 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-02 11:24:59,948 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-02 11:24:59,948 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] ===
[2024-11-02 11:24:59,949 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 11:24:59,949 INFO  L85        PathProgramCache]: Analyzing trace with hash -1917861160, now seen corresponding path program 1 times
[2024-11-02 11:24:59,949 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2024-11-02 11:24:59,950 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285978617]
[2024-11-02 11:24:59,950 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 11:24:59,950 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-02 11:24:59,965 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 11:25:00,054 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-02 11:25:00,055 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2024-11-02 11:25:00,055 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285978617]
[2024-11-02 11:25:00,055 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285978617] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-02 11:25:00,056 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-02 11:25:00,056 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-02 11:25:00,056 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899474798]
[2024-11-02 11:25:00,056 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-02 11:25:00,057 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-02 11:25:00,057 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2024-11-02 11:25:00,057 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-02 11:25:00,058 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-02 11:25:00,058 INFO  L87              Difference]: Start difference. First operand 39792 states and 160995 transitions. Second operand  has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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)
[2024-11-02 11:25:01,038 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 11:25:01,038 INFO  L93              Difference]: Finished difference Result 39792 states and 160995 transitions.
[2024-11-02 11:25:01,039 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-02 11:25:01,039 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 11
[2024-11-02 11:25:01,040 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 11:25:01,421 INFO  L225             Difference]: With dead ends: 39792
[2024-11-02 11:25:01,421 INFO  L226             Difference]: Without dead ends: 36716
[2024-11-02 11:25:01,450 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-02 11:25:01,451 INFO  L432           NwaCegarLoop]: 87 mSDtfsCounter, 168 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-11-02 11:25:01,452 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 132 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-11-02 11:25:01,536 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 36716 states.
[2024-11-02 11:25:03,017 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 36716 to 36716.
[2024-11-02 11:25:03,100 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 36716 states, 36542 states have (on average 4.080044879864266) internal successors, (149093), 36715 states have internal predecessors, (149093), 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)
[2024-11-02 11:25:03,302 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 36716 states to 36716 states and 149093 transitions.
[2024-11-02 11:25:03,352 INFO  L78                 Accepts]: Start accepts. Automaton has 36716 states and 149093 transitions. Word has length 11
[2024-11-02 11:25:03,353 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 11:25:03,353 INFO  L471      AbstractCegarLoop]: Abstraction has 36716 states and 149093 transitions.
[2024-11-02 11:25:03,354 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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)
[2024-11-02 11:25:03,354 INFO  L276                IsEmpty]: Start isEmpty. Operand 36716 states and 149093 transitions.
[2024-11-02 11:25:03,356 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2024-11-02 11:25:03,356 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 11:25:03,356 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-02 11:25:03,357 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-02 11:25:03,357 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] ===
[2024-11-02 11:25:03,357 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 11:25:03,358 INFO  L85        PathProgramCache]: Analyzing trace with hash 1652971739, now seen corresponding path program 1 times
[2024-11-02 11:25:03,358 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2024-11-02 11:25:03,358 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518186612]
[2024-11-02 11:25:03,358 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 11:25:03,359 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-02 11:25:03,377 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 11:25:03,429 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-02 11:25:03,430 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2024-11-02 11:25:03,430 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518186612]
[2024-11-02 11:25:03,430 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518186612] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-02 11:25:03,431 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-02 11:25:03,431 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-02 11:25:03,431 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699888037]
[2024-11-02 11:25:03,431 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-02 11:25:03,431 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-02 11:25:03,432 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2024-11-02 11:25:03,432 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-02 11:25:03,432 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-02 11:25:03,432 INFO  L87              Difference]: Start difference. First operand 36716 states and 149093 transitions. Second operand  has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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)
[2024-11-02 11:25:04,448 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 11:25:04,449 INFO  L93              Difference]: Finished difference Result 36716 states and 149093 transitions.
[2024-11-02 11:25:04,449 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-02 11:25:04,450 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 11
[2024-11-02 11:25:04,450 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 11:25:04,704 INFO  L225             Difference]: With dead ends: 36716
[2024-11-02 11:25:04,704 INFO  L226             Difference]: Without dead ends: 35418
[2024-11-02 11:25:04,722 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-02 11:25:04,727 INFO  L432           NwaCegarLoop]: 87 mSDtfsCounter, 167 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-02 11:25:04,727 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 132 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-02 11:25:04,796 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 35418 states.
[2024-11-02 11:25:05,794 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 35418 to 35418.
[2024-11-02 11:25:05,859 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 35418 states, 35279 states have (on average 4.083647495677315) internal successors, (144067), 35417 states have internal predecessors, (144067), 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)
[2024-11-02 11:25:05,989 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 35418 states to 35418 states and 144067 transitions.
[2024-11-02 11:25:06,021 INFO  L78                 Accepts]: Start accepts. Automaton has 35418 states and 144067 transitions. Word has length 11
[2024-11-02 11:25:06,021 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 11:25:06,021 INFO  L471      AbstractCegarLoop]: Abstraction has 35418 states and 144067 transitions.
[2024-11-02 11:25:06,022 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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)
[2024-11-02 11:25:06,022 INFO  L276                IsEmpty]: Start isEmpty. Operand 35418 states and 144067 transitions.
[2024-11-02 11:25:06,025 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2024-11-02 11:25:06,025 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 11:25:06,025 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-02 11:25:06,025 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-02 11:25:06,026 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] ===
[2024-11-02 11:25:06,026 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 11:25:06,026 INFO  L85        PathProgramCache]: Analyzing trace with hash 675847022, now seen corresponding path program 1 times
[2024-11-02 11:25:06,026 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2024-11-02 11:25:06,027 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838579324]
[2024-11-02 11:25:06,027 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 11:25:06,027 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-02 11:25:06,039 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 11:25:06,094 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-02 11:25:06,094 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2024-11-02 11:25:06,094 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838579324]
[2024-11-02 11:25:06,094 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838579324] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-02 11:25:06,095 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-02 11:25:06,095 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-02 11:25:06,095 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195316581]
[2024-11-02 11:25:06,095 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-02 11:25:06,095 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-02 11:25:06,096 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2024-11-02 11:25:06,096 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-02 11:25:06,096 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-02 11:25:06,096 INFO  L87              Difference]: Start difference. First operand 35418 states and 144067 transitions. Second operand  has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-02 11:25:06,522 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 11:25:06,523 INFO  L93              Difference]: Finished difference Result 35418 states and 144067 transitions.
[2024-11-02 11:25:06,523 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-02 11:25:06,523 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12
[2024-11-02 11:25:06,523 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 11:25:07,431 INFO  L225             Difference]: With dead ends: 35418
[2024-11-02 11:25:07,432 INFO  L226             Difference]: Without dead ends: 33934
[2024-11-02 11:25:07,444 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-02 11:25:07,446 INFO  L432           NwaCegarLoop]: 85 mSDtfsCounter, 163 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-02 11:25:07,448 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 129 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-02 11:25:07,515 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 33934 states.
[2024-11-02 11:25:08,448 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 33934 to 33934.
[2024-11-02 11:25:08,500 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 33934 states, 33823 states have (on average 4.0893474854389025) internal successors, (138314), 33933 states have internal predecessors, (138314), 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)
[2024-11-02 11:25:08,737 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 33934 states to 33934 states and 138314 transitions.
[2024-11-02 11:25:08,801 INFO  L78                 Accepts]: Start accepts. Automaton has 33934 states and 138314 transitions. Word has length 12
[2024-11-02 11:25:08,801 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 11:25:08,802 INFO  L471      AbstractCegarLoop]: Abstraction has 33934 states and 138314 transitions.
[2024-11-02 11:25:08,802 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-02 11:25:08,802 INFO  L276                IsEmpty]: Start isEmpty. Operand 33934 states and 138314 transitions.
[2024-11-02 11:25:08,808 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2024-11-02 11:25:08,810 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 11:25:08,810 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-02 11:25:08,810 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-02 11:25:08,811 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] ===
[2024-11-02 11:25:08,811 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 11:25:08,811 INFO  L85        PathProgramCache]: Analyzing trace with hash -297483854, now seen corresponding path program 1 times
[2024-11-02 11:25:08,811 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2024-11-02 11:25:08,812 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523172092]
[2024-11-02 11:25:08,812 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 11:25:08,812 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-02 11:25:08,836 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 11:25:09,592 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-02 11:25:09,592 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2024-11-02 11:25:09,593 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523172092]
[2024-11-02 11:25:09,593 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523172092] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-02 11:25:09,593 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-02 11:25:09,593 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-02 11:25:09,593 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810399945]
[2024-11-02 11:25:09,593 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-02 11:25:09,594 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-02 11:25:09,594 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2024-11-02 11:25:09,594 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-02 11:25:09,594 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-02 11:25:09,594 INFO  L87              Difference]: Start difference. First operand 33934 states and 138314 transitions. Second operand  has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-02 11:25:10,095 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 11:25:10,095 INFO  L93              Difference]: Finished difference Result 33934 states and 138314 transitions.
[2024-11-02 11:25:10,096 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-02 11:25:10,096 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12
[2024-11-02 11:25:10,096 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 11:25:10,285 INFO  L225             Difference]: With dead ends: 33934
[2024-11-02 11:25:10,285 INFO  L226             Difference]: Without dead ends: 32690
[2024-11-02 11:25:10,299 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2024-11-02 11:25:10,301 INFO  L432           NwaCegarLoop]: 120 mSDtfsCounter, 226 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-02 11:25:10,302 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 245 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-02 11:25:10,346 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 32690 states.