./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.4.ufo.BOUNDED-8.pals.c.v+cfa-reducer.c --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version 4f9af400
extending candidate: java
['java']
extending candidate: /usr/bin/java
['java', '/usr/bin/java']
extending candidate: /opt/oracle-jdk-bin-*/bin/java
['java', '/usr/bin/java']
extending candidate: /opt/openjdk-*/bin/java
['java', '/usr/bin/java']
extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java
['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java']
['/root/.sdkman/candidates/java/21.0.5-tem/bin/java', '-Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config', '-Xmx15G', '-Xms4m', '-jar', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar', '-data', '@noDefault', '-ultimatedata', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data', '-tc', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml', '-i', '../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.4.ufo.BOUNDED-8.pals.c.v+cfa-reducer.c', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf', '--cacsl2boogietranslator.entry.function', 'main', '--witnessprinter.witness.directory', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux', '--witnessprinter.witness.filename', 'witness', '--witnessprinter.write.witness.besides.input.file', 'false', '--witnessprinter.graph.data.specification', 'CHECK( init(main()), LTL(G ! call(reach_error())) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '32bit', '--witnessprinter.graph.data.programhash', '695c99bbb2ee4f955d16991d39d1ac6b5b32c36e8696260349d8fb0dae4c113f']
Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.4.ufo.BOUNDED-8.pals.c.v+cfa-reducer.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 695c99bbb2ee4f955d16991d39d1ac6b5b32c36e8696260349d8fb0dae4c113f
--- Real Ultimate output ---
This is Ultimate 0.3.0-?-4f9af40
[2024-11-07 00:19:43,742 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-07 00:19:43,863 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-07 00:19:43,872 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-07 00:19:43,872 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-07 00:19:43,906 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-07 00:19:43,908 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-07 00:19:43,908 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-07 00:19:43,908 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-07 00:19:43,909 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-07 00:19:43,909 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-07 00:19:43,909 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-07 00:19:43,910 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-07 00:19:43,910 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-07 00:19:43,911 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-07 00:19:43,911 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-07 00:19:43,911 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-07 00:19:43,911 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-07 00:19:43,911 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-07 00:19:43,911 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-07 00:19:43,911 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-07 00:19:43,911 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-07 00:19:43,912 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-07 00:19:43,912 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-07 00:19:43,912 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-07 00:19:43,912 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-07 00:19:43,912 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-07 00:19:43,912 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-07 00:19:43,913 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-07 00:19:43,913 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-07 00:19:43,913 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-07 00:19:43,913 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-07 00:19:43,913 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-07 00:19:43,913 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-07 00:19:43,913 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-07 00:19:43,914 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-07 00:19:43,914 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-07 00:19:43,914 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-07 00:19:43,914 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-07 00:19:43,914 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-07 00:19:43,914 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-07 00:19:43,914 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-07 00:19:43,914 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
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 -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )


Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 695c99bbb2ee4f955d16991d39d1ac6b5b32c36e8696260349d8fb0dae4c113f
[2024-11-07 00:19:44,221 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-07 00:19:44,230 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-07 00:19:44,232 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-07 00:19:44,233 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-07 00:19:44,233 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-07 00:19:44,234 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.4.ufo.BOUNDED-8.pals.c.v+cfa-reducer.c
[2024-11-07 00:19:45,689 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-07 00:19:46,043 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-07 00:19:46,047 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.4.ufo.BOUNDED-8.pals.c.v+cfa-reducer.c
[2024-11-07 00:19:46,065 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c248716a3/0b070c7f32c44f438ae1c0c50545c242/FLAG42b07bcc8
[2024-11-07 00:19:46,087 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c248716a3/0b070c7f32c44f438ae1c0c50545c242
[2024-11-07 00:19:46,091 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-07 00:19:46,093 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-07 00:19:46,095 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-07 00:19:46,096 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-07 00:19:46,100 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-07 00:19:46,101 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:19:46" (1/1) ...
[2024-11-07 00:19:46,102 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@724d3152 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:19:46, skipping insertion in model container
[2024-11-07 00:19:46,102 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:19:46" (1/1) ...
[2024-11-07 00:19:46,158 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-07 00:19:46,467 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.4.ufo.BOUNDED-8.pals.c.v+cfa-reducer.c[12834,12847]
[2024-11-07 00:19:46,550 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-07 00:19:46,573 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-07 00:19:46,638 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.4.ufo.BOUNDED-8.pals.c.v+cfa-reducer.c[12834,12847]
[2024-11-07 00:19:46,679 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-07 00:19:46,702 INFO  L204         MainTranslator]: Completed translation
[2024-11-07 00:19:46,703 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:19:46 WrapperNode
[2024-11-07 00:19:46,703 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-07 00:19:46,704 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-07 00:19:46,704 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-07 00:19:46,704 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-07 00:19:46,709 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:19:46" (1/1) ...
[2024-11-07 00:19:46,722 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:19:46" (1/1) ...
[2024-11-07 00:19:46,782 INFO  L138                Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1363
[2024-11-07 00:19:46,783 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-07 00:19:46,783 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-07 00:19:46,783 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-07 00:19:46,783 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-07 00:19:46,793 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:19:46" (1/1) ...
[2024-11-07 00:19:46,793 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:19:46" (1/1) ...
[2024-11-07 00:19:46,803 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:19:46" (1/1) ...
[2024-11-07 00:19:46,870 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-11-07 00:19:46,871 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:19:46" (1/1) ...
[2024-11-07 00:19:46,871 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:19:46" (1/1) ...
[2024-11-07 00:19:46,897 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:19:46" (1/1) ...
[2024-11-07 00:19:46,917 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:19:46" (1/1) ...
[2024-11-07 00:19:46,930 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:19:46" (1/1) ...
[2024-11-07 00:19:46,938 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:19:46" (1/1) ...
[2024-11-07 00:19:46,954 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-07 00:19:46,959 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-07 00:19:46,960 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-07 00:19:46,960 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-07 00:19:46,962 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:19:46" (1/1) ...
[2024-11-07 00:19:46,971 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-07 00:19:46,988 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 00:19:47,007 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-07 00:19:47,013 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-07 00:19:47,045 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-07 00:19:47,045 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-07 00:19:47,045 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-07 00:19:47,045 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-07 00:19:47,244 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-07 00:19:47,246 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-07 00:19:48,615 INFO  L?                        ?]: Removed 120 outVars from TransFormulas that were not future-live.
[2024-11-07 00:19:48,615 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-07 00:19:48,634 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-07 00:19:48,634 INFO  L316             CfgBuilder]: Removed 0 assume(true) statements.
[2024-11-07 00:19:48,635 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:19:48 BoogieIcfgContainer
[2024-11-07 00:19:48,635 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-07 00:19:48,637 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-07 00:19:48,637 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-07 00:19:48,641 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-07 00:19:48,641 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:19:46" (1/3) ...
[2024-11-07 00:19:48,642 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62726edb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:19:48, skipping insertion in model container
[2024-11-07 00:19:48,642 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:19:46" (2/3) ...
[2024-11-07 00:19:48,642 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62726edb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:19:48, skipping insertion in model container
[2024-11-07 00:19:48,642 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:19:48" (3/3) ...
[2024-11-07 00:19:48,643 INFO  L112   eAbstractionObserver]: Analyzing ICFG pals_floodmax.4.4.ufo.BOUNDED-8.pals.c.v+cfa-reducer.c
[2024-11-07 00:19:48,657 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-07 00:19:48,658 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-07 00:19:48,755 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-07 00:19:48,767 INFO  L333      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@f7136d4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-07 00:19:48,767 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-07 00:19:48,778 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 319 states, 317 states have (on average 1.804416403785489) internal successors, (572), 318 states have internal predecessors, (572), 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)
[2024-11-07 00:19:48,788 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 112
[2024-11-07 00:19:48,788 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-07 00:19:48,789 INFO  L215           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]
[2024-11-07 00:19:48,790 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-07 00:19:48,793 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 00:19:48,794 INFO  L85        PathProgramCache]: Analyzing trace with hash 304488522, now seen corresponding path program 1 times
[2024-11-07 00:19:48,801 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 00:19:48,801 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099983544]
[2024-11-07 00:19:48,802 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 00:19:48,802 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 00:19:49,135 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 00:19:49,554 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 00:19:49,555 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 00:19:49,555 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099983544]
[2024-11-07 00:19:49,558 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099983544] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 00:19:49,558 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 00:19:49,558 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-07 00:19:49,560 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677666881]
[2024-11-07 00:19:49,560 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 00:19:49,564 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-07 00:19:49,564 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 00:19:49,588 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-07 00:19:49,589 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-07 00:19:49,593 INFO  L87              Difference]: Start difference. First operand  has 319 states, 317 states have (on average 1.804416403785489) internal successors, (572), 318 states have internal predecessors, (572), 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 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 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)
[2024-11-07 00:19:49,726 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-07 00:19:49,727 INFO  L93              Difference]: Finished difference Result 568 states and 991 transitions.
[2024-11-07 00:19:49,729 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-07 00:19:49,730 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 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 111
[2024-11-07 00:19:49,731 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-07 00:19:49,745 INFO  L225             Difference]: With dead ends: 568
[2024-11-07 00:19:49,747 INFO  L226             Difference]: Without dead ends: 432
[2024-11-07 00:19:49,751 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-07 00:19:49,754 INFO  L432           NwaCegarLoop]: 728 mSDtfsCounter, 222 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 1218 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-07 00:19:49,755 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 1218 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-07 00:19:49,772 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 432 states.
[2024-11-07 00:19:49,815 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 430.
[2024-11-07 00:19:49,818 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 430 states, 429 states have (on average 1.6643356643356644) internal successors, (714), 429 states have internal predecessors, (714), 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)
[2024-11-07 00:19:49,828 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 714 transitions.
[2024-11-07 00:19:49,829 INFO  L78                 Accepts]: Start accepts. Automaton has 430 states and 714 transitions. Word has length 111
[2024-11-07 00:19:49,830 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-07 00:19:49,830 INFO  L471      AbstractCegarLoop]: Abstraction has 430 states and 714 transitions.
[2024-11-07 00:19:49,830 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 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)
[2024-11-07 00:19:49,830 INFO  L276                IsEmpty]: Start isEmpty. Operand 430 states and 714 transitions.
[2024-11-07 00:19:49,839 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 115
[2024-11-07 00:19:49,840 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-07 00:19:49,840 INFO  L215           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]
[2024-11-07 00:19:49,840 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-07 00:19:49,841 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-07 00:19:49,841 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 00:19:49,841 INFO  L85        PathProgramCache]: Analyzing trace with hash -1517208970, now seen corresponding path program 1 times
[2024-11-07 00:19:49,841 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 00:19:49,841 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037342698]
[2024-11-07 00:19:49,842 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 00:19:49,842 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 00:19:49,966 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 00:19:50,194 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 00:19:50,195 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 00:19:50,195 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037342698]
[2024-11-07 00:19:50,195 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037342698] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 00:19:50,195 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 00:19:50,195 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-07 00:19:50,195 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086872157]
[2024-11-07 00:19:50,195 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 00:19:50,196 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-07 00:19:50,196 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 00:19:50,199 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-07 00:19:50,199 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-07 00:19:50,199 INFO  L87              Difference]: Start difference. First operand 430 states and 714 transitions. Second operand  has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 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)
[2024-11-07 00:19:50,266 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-07 00:19:50,267 INFO  L93              Difference]: Finished difference Result 660 states and 1105 transitions.
[2024-11-07 00:19:50,267 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-07 00:19:50,268 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 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 114
[2024-11-07 00:19:50,268 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-07 00:19:50,271 INFO  L225             Difference]: With dead ends: 660
[2024-11-07 00:19:50,272 INFO  L226             Difference]: Without dead ends: 533
[2024-11-07 00:19:50,274 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-07 00:19:50,275 INFO  L432           NwaCegarLoop]: 685 mSDtfsCounter, 196 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 1173 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-07 00:19:50,275 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 1173 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-07 00:19:50,277 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 533 states.
[2024-11-07 00:19:50,299 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 531.
[2024-11-07 00:19:50,300 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 531 states, 530 states have (on average 1.6716981132075472) internal successors, (886), 530 states have internal predecessors, (886), 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)
[2024-11-07 00:19:50,306 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 886 transitions.
[2024-11-07 00:19:50,306 INFO  L78                 Accepts]: Start accepts. Automaton has 531 states and 886 transitions. Word has length 114
[2024-11-07 00:19:50,307 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-07 00:19:50,307 INFO  L471      AbstractCegarLoop]: Abstraction has 531 states and 886 transitions.
[2024-11-07 00:19:50,307 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 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)
[2024-11-07 00:19:50,307 INFO  L276                IsEmpty]: Start isEmpty. Operand 531 states and 886 transitions.
[2024-11-07 00:19:50,309 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 115
[2024-11-07 00:19:50,310 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-07 00:19:50,310 INFO  L215           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]
[2024-11-07 00:19:50,311 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-07 00:19:50,311 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-07 00:19:50,311 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 00:19:50,311 INFO  L85        PathProgramCache]: Analyzing trace with hash -1179194652, now seen corresponding path program 1 times
[2024-11-07 00:19:50,311 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 00:19:50,311 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282797562]
[2024-11-07 00:19:50,311 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 00:19:50,312 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 00:19:50,404 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 00:19:50,602 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 00:19:50,602 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 00:19:50,603 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282797562]
[2024-11-07 00:19:50,603 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282797562] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 00:19:50,603 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 00:19:50,603 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-07 00:19:50,603 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131398515]
[2024-11-07 00:19:50,603 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 00:19:50,604 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-07 00:19:50,604 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 00:19:50,604 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-07 00:19:50,604 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-07 00:19:50,605 INFO  L87              Difference]: Start difference. First operand 531 states and 886 transitions. Second operand  has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 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)
[2024-11-07 00:19:50,658 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-07 00:19:50,659 INFO  L93              Difference]: Finished difference Result 1184 states and 1985 transitions.
[2024-11-07 00:19:50,659 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-07 00:19:50,660 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 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 114
[2024-11-07 00:19:50,662 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-07 00:19:50,668 INFO  L225             Difference]: With dead ends: 1184
[2024-11-07 00:19:50,669 INFO  L226             Difference]: Without dead ends: 844
[2024-11-07 00:19:50,670 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-07 00:19:50,672 INFO  L432           NwaCegarLoop]: 665 mSDtfsCounter, 189 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 1151 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-07 00:19:50,674 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 1151 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-07 00:19:50,676 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 844 states.
[2024-11-07 00:19:50,702 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 844 to 842.
[2024-11-07 00:19:50,704 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 842 states, 841 states have (on average 1.671819262782402) internal successors, (1406), 841 states have internal predecessors, (1406), 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)
[2024-11-07 00:19:50,709 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1406 transitions.
[2024-11-07 00:19:50,709 INFO  L78                 Accepts]: Start accepts. Automaton has 842 states and 1406 transitions. Word has length 114
[2024-11-07 00:19:50,710 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-07 00:19:50,710 INFO  L471      AbstractCegarLoop]: Abstraction has 842 states and 1406 transitions.
[2024-11-07 00:19:50,710 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 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)
[2024-11-07 00:19:50,710 INFO  L276                IsEmpty]: Start isEmpty. Operand 842 states and 1406 transitions.
[2024-11-07 00:19:50,712 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 118
[2024-11-07 00:19:50,712 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-07 00:19:50,712 INFO  L215           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]
[2024-11-07 00:19:50,712 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-07 00:19:50,713 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-07 00:19:50,713 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 00:19:50,713 INFO  L85        PathProgramCache]: Analyzing trace with hash -236553538, now seen corresponding path program 1 times
[2024-11-07 00:19:50,713 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 00:19:50,714 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063787691]
[2024-11-07 00:19:50,714 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 00:19:50,714 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 00:19:50,792 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 00:19:50,917 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 00:19:50,917 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 00:19:50,917 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063787691]
[2024-11-07 00:19:50,917 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063787691] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 00:19:50,917 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 00:19:50,917 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-07 00:19:50,917 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211311399]
[2024-11-07 00:19:50,917 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 00:19:50,918 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-07 00:19:50,918 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 00:19:50,921 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-07 00:19:50,921 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-07 00:19:50,921 INFO  L87              Difference]: Start difference. First operand 842 states and 1406 transitions. Second operand  has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 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)
[2024-11-07 00:19:50,999 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-07 00:19:50,999 INFO  L93              Difference]: Finished difference Result 1462 states and 2452 transitions.
[2024-11-07 00:19:51,000 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-07 00:19:51,000 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 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 117
[2024-11-07 00:19:51,000 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-07 00:19:51,006 INFO  L225             Difference]: With dead ends: 1462
[2024-11-07 00:19:51,006 INFO  L226             Difference]: Without dead ends: 1122
[2024-11-07 00:19:51,007 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-07 00:19:51,010 INFO  L432           NwaCegarLoop]: 657 mSDtfsCounter, 190 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 1146 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-07 00:19:51,011 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 1146 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-07 00:19:51,014 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1122 states.
[2024-11-07 00:19:51,041 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1122 to 1120.
[2024-11-07 00:19:51,044 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1120 states, 1119 states have (on average 1.6729222520107239) internal successors, (1872), 1119 states have internal predecessors, (1872), 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)
[2024-11-07 00:19:51,049 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1120 states to 1120 states and 1872 transitions.
[2024-11-07 00:19:51,049 INFO  L78                 Accepts]: Start accepts. Automaton has 1120 states and 1872 transitions. Word has length 117
[2024-11-07 00:19:51,050 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-07 00:19:51,050 INFO  L471      AbstractCegarLoop]: Abstraction has 1120 states and 1872 transitions.
[2024-11-07 00:19:51,050 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 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)
[2024-11-07 00:19:51,050 INFO  L276                IsEmpty]: Start isEmpty. Operand 1120 states and 1872 transitions.
[2024-11-07 00:19:51,052 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 118
[2024-11-07 00:19:51,052 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-07 00:19:51,052 INFO  L215           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]
[2024-11-07 00:19:51,052 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-07 00:19:51,052 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-07 00:19:51,053 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 00:19:51,053 INFO  L85        PathProgramCache]: Analyzing trace with hash 2147173936, now seen corresponding path program 1 times
[2024-11-07 00:19:51,053 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 00:19:51,053 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504711469]
[2024-11-07 00:19:51,053 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 00:19:51,054 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 00:19:51,108 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 00:19:51,254 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 00:19:51,255 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 00:19:51,255 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504711469]
[2024-11-07 00:19:51,255 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504711469] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 00:19:51,255 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 00:19:51,255 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-07 00:19:51,255 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089807649]
[2024-11-07 00:19:51,255 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 00:19:51,255 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-07 00:19:51,255 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 00:19:51,256 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-07 00:19:51,256 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-07 00:19:51,256 INFO  L87              Difference]: Start difference. First operand 1120 states and 1872 transitions. Second operand  has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 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)
[2024-11-07 00:19:51,307 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-07 00:19:51,308 INFO  L93              Difference]: Finished difference Result 2861 states and 4787 transitions.
[2024-11-07 00:19:51,308 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-07 00:19:51,308 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 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 117
[2024-11-07 00:19:51,309 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-07 00:19:51,318 INFO  L225             Difference]: With dead ends: 2861
[2024-11-07 00:19:51,318 INFO  L226             Difference]: Without dead ends: 1950
[2024-11-07 00:19:51,320 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-07 00:19:51,322 INFO  L432           NwaCegarLoop]: 638 mSDtfsCounter, 183 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 1125 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-07 00:19:51,322 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 1125 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-07 00:19:51,324 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1950 states.
[2024-11-07 00:19:51,370 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1950 to 1948.
[2024-11-07 00:19:51,374 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1948 states, 1947 states have (on average 1.6656394453004622) internal successors, (3243), 1947 states have internal predecessors, (3243), 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)
[2024-11-07 00:19:51,385 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1948 states to 1948 states and 3243 transitions.
[2024-11-07 00:19:51,385 INFO  L78                 Accepts]: Start accepts. Automaton has 1948 states and 3243 transitions. Word has length 117
[2024-11-07 00:19:51,386 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-07 00:19:51,386 INFO  L471      AbstractCegarLoop]: Abstraction has 1948 states and 3243 transitions.
[2024-11-07 00:19:51,386 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 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)
[2024-11-07 00:19:51,386 INFO  L276                IsEmpty]: Start isEmpty. Operand 1948 states and 3243 transitions.
[2024-11-07 00:19:51,387 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 121
[2024-11-07 00:19:51,387 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-07 00:19:51,388 INFO  L215           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]
[2024-11-07 00:19:51,388 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-07 00:19:51,388 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-07 00:19:51,388 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 00:19:51,389 INFO  L85        PathProgramCache]: Analyzing trace with hash 866565200, now seen corresponding path program 1 times
[2024-11-07 00:19:51,389 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 00:19:51,389 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877219735]
[2024-11-07 00:19:51,389 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 00:19:51,389 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 00:19:51,455 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 00:19:51,625 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 00:19:51,626 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 00:19:51,626 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877219735]
[2024-11-07 00:19:51,626 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877219735] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 00:19:51,626 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 00:19:51,626 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-07 00:19:51,626 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829649097]
[2024-11-07 00:19:51,627 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 00:19:51,627 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-07 00:19:51,627 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 00:19:51,628 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-07 00:19:51,628 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-07 00:19:51,628 INFO  L87              Difference]: Start difference. First operand 1948 states and 3243 transitions. Second operand  has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 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)
[2024-11-07 00:19:51,694 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-07 00:19:51,696 INFO  L93              Difference]: Finished difference Result 3554 states and 5943 transitions.
[2024-11-07 00:19:51,696 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-07 00:19:51,697 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 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 120
[2024-11-07 00:19:51,698 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-07 00:19:51,712 INFO  L225             Difference]: With dead ends: 3554
[2024-11-07 00:19:51,713 INFO  L226             Difference]: Without dead ends: 2643
[2024-11-07 00:19:51,716 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-07 00:19:51,720 INFO  L432           NwaCegarLoop]: 629 mSDtfsCounter, 184 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 1119 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-07 00:19:51,721 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 1119 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-07 00:19:51,727 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2643 states.
[2024-11-07 00:19:51,777 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2643 to 2641.
[2024-11-07 00:19:51,784 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2641 states, 2640 states have (on average 1.665909090909091) internal successors, (4398), 2640 states have internal predecessors, (4398), 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)
[2024-11-07 00:19:51,800 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2641 states to 2641 states and 4398 transitions.
[2024-11-07 00:19:51,801 INFO  L78                 Accepts]: Start accepts. Automaton has 2641 states and 4398 transitions. Word has length 120
[2024-11-07 00:19:51,802 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-07 00:19:51,802 INFO  L471      AbstractCegarLoop]: Abstraction has 2641 states and 4398 transitions.
[2024-11-07 00:19:51,802 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 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)
[2024-11-07 00:19:51,802 INFO  L276                IsEmpty]: Start isEmpty. Operand 2641 states and 4398 transitions.
[2024-11-07 00:19:51,806 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 121
[2024-11-07 00:19:51,807 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-07 00:19:51,807 INFO  L215           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]
[2024-11-07 00:19:51,807 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-07 00:19:51,807 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-07 00:19:51,808 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 00:19:51,808 INFO  L85        PathProgramCache]: Analyzing trace with hash 83170558, now seen corresponding path program 1 times
[2024-11-07 00:19:51,808 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 00:19:51,808 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585227138]
[2024-11-07 00:19:51,808 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 00:19:51,808 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 00:19:51,860 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 00:19:52,019 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 00:19:52,020 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 00:19:52,021 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585227138]
[2024-11-07 00:19:52,021 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585227138] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 00:19:52,021 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 00:19:52,021 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-07 00:19:52,021 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349647181]
[2024-11-07 00:19:52,021 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 00:19:52,022 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-07 00:19:52,022 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 00:19:52,023 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-07 00:19:52,023 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-07 00:19:52,023 INFO  L87              Difference]: Start difference. First operand 2641 states and 4398 transitions. Second operand  has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 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)
[2024-11-07 00:19:52,097 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-07 00:19:52,098 INFO  L93              Difference]: Finished difference Result 7226 states and 12005 transitions.
[2024-11-07 00:19:52,098 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-07 00:19:52,098 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 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 120
[2024-11-07 00:19:52,099 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-07 00:19:52,119 INFO  L225             Difference]: With dead ends: 7226
[2024-11-07 00:19:52,119 INFO  L226             Difference]: Without dead ends: 4812
[2024-11-07 00:19:52,125 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-07 00:19:52,126 INFO  L432           NwaCegarLoop]: 534 mSDtfsCounter, 177 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 1022 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-07 00:19:52,127 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 1022 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-07 00:19:52,133 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4812 states.
[2024-11-07 00:19:52,223 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4812 to 4810.
[2024-11-07 00:19:52,233 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4810 states, 4809 states have (on average 1.651902682470368) internal successors, (7944), 4809 states have internal predecessors, (7944), 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)
[2024-11-07 00:19:52,258 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4810 states to 4810 states and 7944 transitions.
[2024-11-07 00:19:52,258 INFO  L78                 Accepts]: Start accepts. Automaton has 4810 states and 7944 transitions. Word has length 120
[2024-11-07 00:19:52,258 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-07 00:19:52,259 INFO  L471      AbstractCegarLoop]: Abstraction has 4810 states and 7944 transitions.
[2024-11-07 00:19:52,259 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 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)
[2024-11-07 00:19:52,259 INFO  L276                IsEmpty]: Start isEmpty. Operand 4810 states and 7944 transitions.
[2024-11-07 00:19:52,260 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 124
[2024-11-07 00:19:52,261 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-07 00:19:52,262 INFO  L215           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]
[2024-11-07 00:19:52,262 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-11-07 00:19:52,262 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-07 00:19:52,262 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 00:19:52,263 INFO  L85        PathProgramCache]: Analyzing trace with hash 1139352598, now seen corresponding path program 1 times
[2024-11-07 00:19:52,263 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 00:19:52,263 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743617582]
[2024-11-07 00:19:52,263 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 00:19:52,263 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 00:19:52,332 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 00:19:52,585 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 00:19:52,586 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 00:19:52,586 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743617582]
[2024-11-07 00:19:52,586 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743617582] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 00:19:52,586 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 00:19:52,586 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-07 00:19:52,587 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664168362]
[2024-11-07 00:19:52,587 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 00:19:52,587 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-07 00:19:52,587 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 00:19:52,588 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-07 00:19:52,588 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2024-11-07 00:19:52,588 INFO  L87              Difference]: Start difference. First operand 4810 states and 7944 transitions. Second operand  has 6 states, 6 states have (on average 20.5) internal successors, (123), 6 states have internal predecessors, (123), 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)
[2024-11-07 00:19:53,098 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-07 00:19:53,099 INFO  L93              Difference]: Finished difference Result 29771 states and 49577 transitions.
[2024-11-07 00:19:53,100 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2024-11-07 00:19:53,100 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 20.5) internal successors, (123), 6 states have internal predecessors, (123), 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 123
[2024-11-07 00:19:53,101 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-07 00:19:53,224 INFO  L225             Difference]: With dead ends: 29771
[2024-11-07 00:19:53,225 INFO  L226             Difference]: Without dead ends: 25188
[2024-11-07 00:19:53,248 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110
[2024-11-07 00:19:53,249 INFO  L432           NwaCegarLoop]: 514 mSDtfsCounter, 2298 mSDsluCounter, 3058 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2298 SdHoareTripleChecker+Valid, 3572 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-07 00:19:53,249 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [2298 Valid, 3572 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-07 00:19:53,280 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 25188 states.
[2024-11-07 00:19:53,647 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 25188 to 9236.
[2024-11-07 00:19:53,671 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 9236 states, 9235 states have (on average 1.6472116946399566) internal successors, (15212), 9235 states have internal predecessors, (15212), 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)
[2024-11-07 00:19:53,720 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 9236 states to 9236 states and 15212 transitions.
[2024-11-07 00:19:53,720 INFO  L78                 Accepts]: Start accepts. Automaton has 9236 states and 15212 transitions. Word has length 123
[2024-11-07 00:19:53,721 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-07 00:19:53,721 INFO  L471      AbstractCegarLoop]: Abstraction has 9236 states and 15212 transitions.
[2024-11-07 00:19:53,721 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 20.5) internal successors, (123), 6 states have internal predecessors, (123), 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)
[2024-11-07 00:19:53,721 INFO  L276                IsEmpty]: Start isEmpty. Operand 9236 states and 15212 transitions.
[2024-11-07 00:19:53,722 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 125
[2024-11-07 00:19:53,722 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-07 00:19:53,722 INFO  L215           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]
[2024-11-07 00:19:53,722 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-11-07 00:19:53,723 INFO  L396      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-07 00:19:53,723 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 00:19:53,723 INFO  L85        PathProgramCache]: Analyzing trace with hash 893130139, now seen corresponding path program 1 times
[2024-11-07 00:19:53,724 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 00:19:53,724 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224122746]
[2024-11-07 00:19:53,724 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 00:19:53,724 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 00:19:53,769 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 00:19:53,939 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 00:19:53,940 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 00:19:53,940 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224122746]
[2024-11-07 00:19:53,940 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224122746] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 00:19:53,940 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 00:19:53,940 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-07 00:19:53,940 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32367703]
[2024-11-07 00:19:53,940 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 00:19:53,940 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-07 00:19:53,940 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 00:19:53,941 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-07 00:19:53,941 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-07 00:19:53,941 INFO  L87              Difference]: Start difference. First operand 9236 states and 15212 transitions. Second operand  has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 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)
[2024-11-07 00:19:54,167 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-07 00:19:54,168 INFO  L93              Difference]: Finished difference Result 30029 states and 49739 transitions.
[2024-11-07 00:19:54,170 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-07 00:19:54,171 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 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 124
[2024-11-07 00:19:54,171 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-07 00:19:54,232 INFO  L225             Difference]: With dead ends: 30029
[2024-11-07 00:19:54,233 INFO  L226             Difference]: Without dead ends: 21020
[2024-11-07 00:19:54,256 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-07 00:19:54,258 INFO  L432           NwaCegarLoop]: 514 mSDtfsCounter, 624 mSDsluCounter, 1202 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 624 SdHoareTripleChecker+Valid, 1716 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-07 00:19:54,258 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [624 Valid, 1716 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-07 00:19:54,286 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 21020 states.
[2024-11-07 00:19:54,598 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 21020 to 15091.
[2024-11-07 00:19:54,639 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 15091 states, 15090 states have (on average 1.6485089463220677) internal successors, (24876), 15090 states have internal predecessors, (24876), 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)
[2024-11-07 00:19:54,692 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 15091 states to 15091 states and 24876 transitions.
[2024-11-07 00:19:54,692 INFO  L78                 Accepts]: Start accepts. Automaton has 15091 states and 24876 transitions. Word has length 124
[2024-11-07 00:19:54,693 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-07 00:19:54,693 INFO  L471      AbstractCegarLoop]: Abstraction has 15091 states and 24876 transitions.
[2024-11-07 00:19:54,694 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 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)
[2024-11-07 00:19:54,694 INFO  L276                IsEmpty]: Start isEmpty. Operand 15091 states and 24876 transitions.
[2024-11-07 00:19:54,695 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 125
[2024-11-07 00:19:54,695 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-07 00:19:54,695 INFO  L215           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]
[2024-11-07 00:19:54,696 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2024-11-07 00:19:54,696 INFO  L396      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-07 00:19:54,696 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 00:19:54,696 INFO  L85        PathProgramCache]: Analyzing trace with hash -485089184, now seen corresponding path program 1 times
[2024-11-07 00:19:54,696 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 00:19:54,696 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685461015]
[2024-11-07 00:19:54,697 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 00:19:54,697 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 00:19:54,786 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 00:19:54,884 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 00:19:54,884 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 00:19:54,884 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685461015]
[2024-11-07 00:19:54,884 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685461015] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 00:19:54,884 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 00:19:54,884 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-07 00:19:54,885 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214255045]
[2024-11-07 00:19:54,885 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 00:19:54,885 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-07 00:19:54,885 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 00:19:54,886 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-07 00:19:54,886 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-07 00:19:54,886 INFO  L87              Difference]: Start difference. First operand 15091 states and 24876 transitions. Second operand  has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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)
[2024-11-07 00:19:55,002 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-07 00:19:55,003 INFO  L93              Difference]: Finished difference Result 28697 states and 47478 transitions.
[2024-11-07 00:19:55,003 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-07 00:19:55,003 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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 124
[2024-11-07 00:19:55,004 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-07 00:19:55,062 INFO  L225             Difference]: With dead ends: 28697
[2024-11-07 00:19:55,062 INFO  L226             Difference]: Without dead ends: 20733
[2024-11-07 00:19:55,084 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-07 00:19:55,085 INFO  L432           NwaCegarLoop]: 612 mSDtfsCounter, 178 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 1103 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-07 00:19:55,085 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 1103 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-07 00:19:55,107 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 20733 states.
[2024-11-07 00:19:55,460 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 20733 to 20731.
[2024-11-07 00:19:55,500 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 20731 states, 20730 states have (on average 1.645875542691751) internal successors, (34119), 20730 states have internal predecessors, (34119), 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)
[2024-11-07 00:19:55,565 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 20731 states to 20731 states and 34119 transitions.
[2024-11-07 00:19:55,566 INFO  L78                 Accepts]: Start accepts. Automaton has 20731 states and 34119 transitions. Word has length 124
[2024-11-07 00:19:55,566 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-07 00:19:55,566 INFO  L471      AbstractCegarLoop]: Abstraction has 20731 states and 34119 transitions.
[2024-11-07 00:19:55,566 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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)
[2024-11-07 00:19:55,566 INFO  L276                IsEmpty]: Start isEmpty. Operand 20731 states and 34119 transitions.
[2024-11-07 00:19:55,567 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 126
[2024-11-07 00:19:55,568 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-07 00:19:55,568 INFO  L215           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]
[2024-11-07 00:19:55,568 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2024-11-07 00:19:55,568 INFO  L396      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-07 00:19:55,568 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 00:19:55,568 INFO  L85        PathProgramCache]: Analyzing trace with hash 1854726525, now seen corresponding path program 1 times
[2024-11-07 00:19:55,569 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 00:19:55,569 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910846139]
[2024-11-07 00:19:55,569 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 00:19:55,569 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 00:19:55,694 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 00:19:55,815 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 00:19:55,816 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 00:19:55,816 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910846139]
[2024-11-07 00:19:55,816 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910846139] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 00:19:55,816 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 00:19:55,816 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-07 00:19:55,816 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209852425]
[2024-11-07 00:19:55,816 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 00:19:55,817 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-07 00:19:55,817 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 00:19:55,817 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-07 00:19:55,817 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-07 00:19:55,818 INFO  L87              Difference]: Start difference. First operand 20731 states and 34119 transitions. Second operand  has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 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)
[2024-11-07 00:19:56,080 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-07 00:19:56,080 INFO  L93              Difference]: Finished difference Result 67429 states and 111258 transitions.
[2024-11-07 00:19:56,081 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-07 00:19:56,081 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 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 125
[2024-11-07 00:19:56,082 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-07 00:19:56,213 INFO  L225             Difference]: With dead ends: 67429
[2024-11-07 00:19:56,213 INFO  L226             Difference]: Without dead ends: 46943
[2024-11-07 00:19:56,264 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-07 00:19:56,265 INFO  L432           NwaCegarLoop]: 519 mSDtfsCounter, 622 mSDsluCounter, 1098 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 622 SdHoareTripleChecker+Valid, 1617 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-07 00:19:56,265 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [622 Valid, 1617 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-07 00:19:56,315 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 46943 states.
[2024-11-07 00:19:57,004 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 46943 to 33748.
[2024-11-07 00:19:57,067 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 33748 states, 33747 states have (on average 1.6413014490176905) internal successors, (55389), 33747 states have internal predecessors, (55389), 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)
[2024-11-07 00:19:57,152 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 33748 states to 33748 states and 55389 transitions.
[2024-11-07 00:19:57,153 INFO  L78                 Accepts]: Start accepts. Automaton has 33748 states and 55389 transitions. Word has length 125
[2024-11-07 00:19:57,153 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-07 00:19:57,153 INFO  L471      AbstractCegarLoop]: Abstraction has 33748 states and 55389 transitions.
[2024-11-07 00:19:57,154 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 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)
[2024-11-07 00:19:57,154 INFO  L276                IsEmpty]: Start isEmpty. Operand 33748 states and 55389 transitions.
[2024-11-07 00:19:57,155 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 127
[2024-11-07 00:19:57,155 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-07 00:19:57,155 INFO  L215           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]
[2024-11-07 00:19:57,155 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2024-11-07 00:19:57,156 INFO  L396      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-07 00:19:57,156 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 00:19:57,156 INFO  L85        PathProgramCache]: Analyzing trace with hash 1604001442, now seen corresponding path program 1 times
[2024-11-07 00:19:57,156 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 00:19:57,157 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745973290]
[2024-11-07 00:19:57,157 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 00:19:57,157 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 00:19:57,205 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 00:19:57,342 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 00:19:57,342 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 00:19:57,342 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745973290]
[2024-11-07 00:19:57,342 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745973290] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 00:19:57,342 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 00:19:57,342 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-07 00:19:57,342 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882692149]
[2024-11-07 00:19:57,342 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 00:19:57,343 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-07 00:19:57,343 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 00:19:57,343 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-07 00:19:57,343 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-07 00:19:57,344 INFO  L87              Difference]: Start difference. First operand 33748 states and 55389 transitions. Second operand  has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 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)
[2024-11-07 00:19:57,918 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-07 00:19:57,918 INFO  L93              Difference]: Finished difference Result 109323 states and 179874 transitions.
[2024-11-07 00:19:57,919 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-07 00:19:57,919 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 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 126
[2024-11-07 00:19:57,920 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-07 00:19:58,207 INFO  L225             Difference]: With dead ends: 109323
[2024-11-07 00:19:58,208 INFO  L226             Difference]: Without dead ends: 75820
[2024-11-07 00:19:58,291 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-07 00:19:58,292 INFO  L432           NwaCegarLoop]: 513 mSDtfsCounter, 620 mSDsluCounter, 1145 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 620 SdHoareTripleChecker+Valid, 1658 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-07 00:19:58,292 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [620 Valid, 1658 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-07 00:19:58,363 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 75820 states.
[2024-11-07 00:19:59,343 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 75820 to 54641.
[2024-11-07 00:19:59,420 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 54641 states, 54640 states have (on average 1.6366581259150805) internal successors, (89427), 54640 states have internal predecessors, (89427), 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)
[2024-11-07 00:19:59,784 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 54641 states to 54641 states and 89427 transitions.
[2024-11-07 00:19:59,784 INFO  L78                 Accepts]: Start accepts. Automaton has 54641 states and 89427 transitions. Word has length 126
[2024-11-07 00:19:59,785 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-07 00:19:59,785 INFO  L471      AbstractCegarLoop]: Abstraction has 54641 states and 89427 transitions.
[2024-11-07 00:19:59,785 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 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)
[2024-11-07 00:19:59,785 INFO  L276                IsEmpty]: Start isEmpty. Operand 54641 states and 89427 transitions.
[2024-11-07 00:19:59,786 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 128
[2024-11-07 00:19:59,786 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-07 00:19:59,790 INFO  L215           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]
[2024-11-07 00:19:59,790 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2024-11-07 00:19:59,790 INFO  L396      AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-07 00:19:59,791 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 00:19:59,791 INFO  L85        PathProgramCache]: Analyzing trace with hash -1868950812, now seen corresponding path program 1 times
[2024-11-07 00:19:59,791 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 00:19:59,791 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621775858]
[2024-11-07 00:19:59,791 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 00:19:59,791 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 00:19:59,884 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 00:20:00,021 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 00:20:00,023 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 00:20:00,023 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621775858]
[2024-11-07 00:20:00,023 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621775858] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 00:20:00,023 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 00:20:00,023 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-07 00:20:00,023 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101265779]
[2024-11-07 00:20:00,024 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 00:20:00,024 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-07 00:20:00,024 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 00:20:00,025 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-07 00:20:00,025 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-07 00:20:00,025 INFO  L87              Difference]: Start difference. First operand 54641 states and 89427 transitions. Second operand  has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 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)
[2024-11-07 00:20:00,872 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-07 00:20:00,873 INFO  L93              Difference]: Finished difference Result 175049 states and 287186 transitions.
[2024-11-07 00:20:00,874 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-07 00:20:00,874 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 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 127
[2024-11-07 00:20:00,875 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-07 00:20:01,372 INFO  L225             Difference]: With dead ends: 175049
[2024-11-07 00:20:01,373 INFO  L226             Difference]: Without dead ends: 120653
[2024-11-07 00:20:01,479 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-07 00:20:01,480 INFO  L432           NwaCegarLoop]: 514 mSDtfsCounter, 618 mSDsluCounter, 1208 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 618 SdHoareTripleChecker+Valid, 1722 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-07 00:20:01,480 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [618 Valid, 1722 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-07 00:20:01,807 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 120653 states.
[2024-11-07 00:20:02,962 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 120653 to 87422.
[2024-11-07 00:20:03,071 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 87422 states, 87421 states have (on average 1.6320220541975041) internal successors, (142673), 87421 states have internal predecessors, (142673), 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)
[2024-11-07 00:20:03,339 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 87422 states to 87422 states and 142673 transitions.
[2024-11-07 00:20:03,340 INFO  L78                 Accepts]: Start accepts. Automaton has 87422 states and 142673 transitions. Word has length 127
[2024-11-07 00:20:03,340 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-07 00:20:03,340 INFO  L471      AbstractCegarLoop]: Abstraction has 87422 states and 142673 transitions.
[2024-11-07 00:20:03,340 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 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)
[2024-11-07 00:20:03,340 INFO  L276                IsEmpty]: Start isEmpty. Operand 87422 states and 142673 transitions.
[2024-11-07 00:20:03,342 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 130
[2024-11-07 00:20:03,342 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-07 00:20:03,343 INFO  L215           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]
[2024-11-07 00:20:03,343 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2024-11-07 00:20:03,343 INFO  L396      AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-07 00:20:03,343 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 00:20:03,344 INFO  L85        PathProgramCache]: Analyzing trace with hash 2012261173, now seen corresponding path program 1 times
[2024-11-07 00:20:03,344 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 00:20:03,344 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131038237]
[2024-11-07 00:20:03,344 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 00:20:03,344 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 00:20:03,394 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 00:20:04,059 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 00:20:04,060 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 00:20:04,060 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131038237]
[2024-11-07 00:20:04,060 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131038237] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 00:20:04,060 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 00:20:04,060 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-07 00:20:04,060 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932578551]
[2024-11-07 00:20:04,060 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 00:20:04,060 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-07 00:20:04,061 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 00:20:04,061 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-07 00:20:04,061 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2024-11-07 00:20:04,061 INFO  L87              Difference]: Start difference. First operand 87422 states and 142673 transitions. Second operand  has 6 states, 6 states have (on average 21.5) internal successors, (129), 6 states have internal predecessors, (129), 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)
[2024-11-07 00:20:04,796 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-07 00:20:04,796 INFO  L93              Difference]: Finished difference Result 174601 states and 284955 transitions.
[2024-11-07 00:20:04,797 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-11-07 00:20:04,797 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 21.5) internal successors, (129), 6 states have internal predecessors, (129), 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 129
[2024-11-07 00:20:04,797 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-07 00:20:05,021 INFO  L225             Difference]: With dead ends: 174601
[2024-11-07 00:20:05,021 INFO  L226             Difference]: Without dead ends: 87424
[2024-11-07 00:20:05,118 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2024-11-07 00:20:05,118 INFO  L432           NwaCegarLoop]: 517 mSDtfsCounter, 711 mSDsluCounter, 1476 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 711 SdHoareTripleChecker+Valid, 1993 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-07 00:20:05,118 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [711 Valid, 1993 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-07 00:20:05,195 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 87424 states.
[2024-11-07 00:20:06,121 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 87424 to 87422.
[2024-11-07 00:20:06,216 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 87422 states, 87421 states have (on average 1.6248727422472862) internal successors, (142048), 87421 states have internal predecessors, (142048), 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)
[2024-11-07 00:20:06,439 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 87422 states to 87422 states and 142048 transitions.
[2024-11-07 00:20:06,439 INFO  L78                 Accepts]: Start accepts. Automaton has 87422 states and 142048 transitions. Word has length 129
[2024-11-07 00:20:06,439 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-07 00:20:06,439 INFO  L471      AbstractCegarLoop]: Abstraction has 87422 states and 142048 transitions.
[2024-11-07 00:20:06,440 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 21.5) internal successors, (129), 6 states have internal predecessors, (129), 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)
[2024-11-07 00:20:06,440 INFO  L276                IsEmpty]: Start isEmpty. Operand 87422 states and 142048 transitions.
[2024-11-07 00:20:06,440 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 133
[2024-11-07 00:20:06,441 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-07 00:20:06,441 INFO  L215           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]
[2024-11-07 00:20:06,441 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2024-11-07 00:20:06,441 INFO  L396      AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-07 00:20:06,441 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 00:20:06,441 INFO  L85        PathProgramCache]: Analyzing trace with hash 365685076, now seen corresponding path program 1 times
[2024-11-07 00:20:06,441 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 00:20:06,441 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94358335]
[2024-11-07 00:20:06,442 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 00:20:06,442 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 00:20:06,759 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 00:20:07,125 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 00:20:07,126 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 00:20:07,126 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94358335]
[2024-11-07 00:20:07,126 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94358335] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 00:20:07,126 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 00:20:07,126 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-07 00:20:07,126 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265090938]
[2024-11-07 00:20:07,126 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 00:20:07,126 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-07 00:20:07,126 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 00:20:07,127 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-07 00:20:07,127 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2024-11-07 00:20:07,127 INFO  L87              Difference]: Start difference. First operand 87422 states and 142048 transitions. Second operand  has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 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)
[2024-11-07 00:20:08,541 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-07 00:20:08,541 INFO  L93              Difference]: Finished difference Result 255495 states and 415623 transitions.
[2024-11-07 00:20:08,542 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-11-07 00:20:08,542 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 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 132
[2024-11-07 00:20:08,542 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-07 00:20:08,986 INFO  L225             Difference]: With dead ends: 255495
[2024-11-07 00:20:08,987 INFO  L226             Difference]: Without dead ends: 168318
[2024-11-07 00:20:09,105 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2024-11-07 00:20:09,106 INFO  L432           NwaCegarLoop]: 514 mSDtfsCounter, 528 mSDsluCounter, 1494 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 528 SdHoareTripleChecker+Valid, 2008 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-07 00:20:09,107 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [528 Valid, 2008 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-07 00:20:09,271 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 168318 states.
[2024-11-07 00:20:10,914 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 168318 to 168316.
[2024-11-07 00:20:11,086 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 168316 states, 168315 states have (on average 1.615714582776342) internal successors, (271949), 168315 states have internal predecessors, (271949), 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)
[2024-11-07 00:20:11,443 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 168316 states to 168316 states and 271949 transitions.
[2024-11-07 00:20:11,444 INFO  L78                 Accepts]: Start accepts. Automaton has 168316 states and 271949 transitions. Word has length 132
[2024-11-07 00:20:11,444 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-07 00:20:11,444 INFO  L471      AbstractCegarLoop]: Abstraction has 168316 states and 271949 transitions.
[2024-11-07 00:20:11,444 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 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)
[2024-11-07 00:20:11,444 INFO  L276                IsEmpty]: Start isEmpty. Operand 168316 states and 271949 transitions.
[2024-11-07 00:20:11,445 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 134
[2024-11-07 00:20:11,445 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-07 00:20:11,445 INFO  L215           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]
[2024-11-07 00:20:11,445 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2024-11-07 00:20:11,446 INFO  L396      AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-07 00:20:11,446 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 00:20:11,446 INFO  L85        PathProgramCache]: Analyzing trace with hash -1550573646, now seen corresponding path program 1 times
[2024-11-07 00:20:11,447 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 00:20:11,447 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847274045]
[2024-11-07 00:20:11,447 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 00:20:11,447 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 00:20:12,063 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 00:20:12,703 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 00:20:12,703 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 00:20:12,703 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847274045]
[2024-11-07 00:20:12,703 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847274045] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 00:20:12,703 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 00:20:12,703 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-07 00:20:12,703 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778809972]
[2024-11-07 00:20:12,703 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 00:20:12,703 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-07 00:20:12,704 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 00:20:12,704 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-07 00:20:12,704 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-07 00:20:12,704 INFO  L87              Difference]: Start difference. First operand 168316 states and 271949 transitions. Second operand  has 5 states, 5 states have (on average 26.6) internal successors, (133), 5 states have internal predecessors, (133), 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)
[2024-11-07 00:20:13,507 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-07 00:20:13,508 INFO  L93              Difference]: Finished difference Result 172190 states and 277758 transitions.
[2024-11-07 00:20:13,508 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-07 00:20:13,509 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 26.6) internal successors, (133), 5 states have internal predecessors, (133), 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 133
[2024-11-07 00:20:13,509 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-07 00:20:13,928 INFO  L225             Difference]: With dead ends: 172190
[2024-11-07 00:20:13,929 INFO  L226             Difference]: Without dead ends: 172188
[2024-11-07 00:20:14,376 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-07 00:20:14,377 INFO  L432           NwaCegarLoop]: 522 mSDtfsCounter, 0 mSDsluCounter, 1548 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2070 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-07 00:20:14,377 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2070 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-07 00:20:14,469 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 172188 states.
[2024-11-07 00:20:16,111 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 172188 to 172188.
[2024-11-07 00:20:16,271 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 172188 states, 172187 states have (on average 1.6017120920859298) internal successors, (275794), 172187 states have internal predecessors, (275794), 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)
[2024-11-07 00:20:16,675 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 172188 states to 172188 states and 275794 transitions.
[2024-11-07 00:20:16,675 INFO  L78                 Accepts]: Start accepts. Automaton has 172188 states and 275794 transitions. Word has length 133
[2024-11-07 00:20:16,675 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-07 00:20:16,675 INFO  L471      AbstractCegarLoop]: Abstraction has 172188 states and 275794 transitions.
[2024-11-07 00:20:16,675 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 26.6) internal successors, (133), 5 states have internal predecessors, (133), 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)
[2024-11-07 00:20:16,676 INFO  L276                IsEmpty]: Start isEmpty. Operand 172188 states and 275794 transitions.
[2024-11-07 00:20:16,684 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 164
[2024-11-07 00:20:16,685 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-07 00:20:16,685 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 00:20:16,685 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15
[2024-11-07 00:20:16,685 INFO  L396      AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-07 00:20:16,687 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 00:20:16,687 INFO  L85        PathProgramCache]: Analyzing trace with hash -2098432369, now seen corresponding path program 1 times
[2024-11-07 00:20:16,687 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 00:20:16,687 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448234098]
[2024-11-07 00:20:16,688 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 00:20:16,688 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 00:20:16,767 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 00:20:17,037 INFO  L134       CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2024-11-07 00:20:17,038 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 00:20:17,039 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448234098]
[2024-11-07 00:20:17,039 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448234098] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 00:20:17,039 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 00:20:17,039 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-07 00:20:17,039 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434064570]
[2024-11-07 00:20:17,039 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 00:20:17,039 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-07 00:20:17,039 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 00:20:17,040 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-07 00:20:17,040 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-11-07 00:20:17,040 INFO  L87              Difference]: Start difference. First operand 172188 states and 275794 transitions. Second operand  has 6 states, 6 states have (on average 27.0) internal successors, (162), 6 states have internal predecessors, (162), 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)
[2024-11-07 00:20:19,253 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-07 00:20:19,253 INFO  L93              Difference]: Finished difference Result 469214 states and 754047 transitions.
[2024-11-07 00:20:19,253 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-11-07 00:20:19,254 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 27.0) internal successors, (162), 6 states have internal predecessors, (162), 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 163
[2024-11-07 00:20:19,254 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-07 00:20:20,185 INFO  L225             Difference]: With dead ends: 469214
[2024-11-07 00:20:20,185 INFO  L226             Difference]: Without dead ends: 393562
[2024-11-07 00:20:20,369 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72
[2024-11-07 00:20:20,370 INFO  L432           NwaCegarLoop]: 723 mSDtfsCounter, 1388 mSDsluCounter, 2225 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1388 SdHoareTripleChecker+Valid, 2948 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-07 00:20:20,370 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1388 Valid, 2948 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-07 00:20:20,723 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 393562 states.
[2024-11-07 00:20:25,061 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 393562 to 276620.
[2024-11-07 00:20:25,332 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 276620 states, 276619 states have (on average 1.6000925460651654) internal successors, (442616), 276619 states have internal predecessors, (442616), 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)
[2024-11-07 00:20:26,123 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 276620 states to 276620 states and 442616 transitions.
[2024-11-07 00:20:26,123 INFO  L78                 Accepts]: Start accepts. Automaton has 276620 states and 442616 transitions. Word has length 163
[2024-11-07 00:20:26,123 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-07 00:20:26,123 INFO  L471      AbstractCegarLoop]: Abstraction has 276620 states and 442616 transitions.
[2024-11-07 00:20:26,124 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 27.0) internal successors, (162), 6 states have internal predecessors, (162), 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)
[2024-11-07 00:20:26,124 INFO  L276                IsEmpty]: Start isEmpty. Operand 276620 states and 442616 transitions.
[2024-11-07 00:20:26,134 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 164
[2024-11-07 00:20:26,134 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-07 00:20:26,134 INFO  L215           NwaCegarLoop]: trace histogram [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]
[2024-11-07 00:20:26,135 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16
[2024-11-07 00:20:26,135 INFO  L396      AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-07 00:20:26,135 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 00:20:26,135 INFO  L85        PathProgramCache]: Analyzing trace with hash -903642171, now seen corresponding path program 1 times
[2024-11-07 00:20:26,136 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 00:20:26,136 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840268717]
[2024-11-07 00:20:26,136 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 00:20:26,136 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 00:20:26,981 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 00:20:27,196 INFO  L134       CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2024-11-07 00:20:27,197 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 00:20:27,197 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840268717]
[2024-11-07 00:20:27,197 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840268717] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 00:20:27,197 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 00:20:27,197 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-07 00:20:27,197 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743800423]
[2024-11-07 00:20:27,197 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 00:20:27,198 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-07 00:20:27,198 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 00:20:27,198 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-07 00:20:27,198 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-11-07 00:20:27,199 INFO  L87              Difference]: Start difference. First operand 276620 states and 442616 transitions. Second operand  has 6 states, 6 states have (on average 27.0) internal successors, (162), 6 states have internal predecessors, (162), 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)
[2024-11-07 00:20:29,547 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-07 00:20:29,547 INFO  L93              Difference]: Finished difference Result 517342 states and 831675 transitions.
[2024-11-07 00:20:29,548 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-11-07 00:20:29,548 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 27.0) internal successors, (162), 6 states have internal predecessors, (162), 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 163
[2024-11-07 00:20:29,548 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-07 00:20:30,414 INFO  L225             Difference]: With dead ends: 517342
[2024-11-07 00:20:30,414 INFO  L226             Difference]: Without dead ends: 441690
[2024-11-07 00:20:30,503 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72
[2024-11-07 00:20:30,503 INFO  L432           NwaCegarLoop]: 721 mSDtfsCounter, 1327 mSDsluCounter, 1928 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1327 SdHoareTripleChecker+Valid, 2649 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-07 00:20:30,503 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1327 Valid, 2649 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-07 00:20:30,820 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 441690 states.
[2024-11-07 00:20:35,580 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 441690 to 373886.
[2024-11-07 00:20:35,954 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 373886 states, 373885 states have (on average 1.6012249755940997) internal successors, (598674), 373885 states have internal predecessors, (598674), 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)
[2024-11-07 00:20:36,894 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 373886 states to 373886 states and 598674 transitions.
[2024-11-07 00:20:36,895 INFO  L78                 Accepts]: Start accepts. Automaton has 373886 states and 598674 transitions. Word has length 163
[2024-11-07 00:20:36,897 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-07 00:20:36,898 INFO  L471      AbstractCegarLoop]: Abstraction has 373886 states and 598674 transitions.
[2024-11-07 00:20:36,898 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 27.0) internal successors, (162), 6 states have internal predecessors, (162), 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)
[2024-11-07 00:20:36,899 INFO  L276                IsEmpty]: Start isEmpty. Operand 373886 states and 598674 transitions.
[2024-11-07 00:20:36,910 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 164
[2024-11-07 00:20:36,914 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-07 00:20:36,914 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 00:20:36,915 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17
[2024-11-07 00:20:36,915 INFO  L396      AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-07 00:20:36,915 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 00:20:36,915 INFO  L85        PathProgramCache]: Analyzing trace with hash -220690461, now seen corresponding path program 1 times
[2024-11-07 00:20:36,915 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 00:20:36,916 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540103865]
[2024-11-07 00:20:36,916 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 00:20:36,916 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 00:20:36,959 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 00:20:37,928 INFO  L134       CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-07 00:20:37,929 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 00:20:37,929 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540103865]
[2024-11-07 00:20:37,929 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540103865] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 00:20:37,929 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 00:20:37,929 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-07 00:20:37,929 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603185309]
[2024-11-07 00:20:37,929 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 00:20:37,929 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-07 00:20:37,929 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 00:20:37,930 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-07 00:20:37,930 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-11-07 00:20:37,930 INFO  L87              Difference]: Start difference. First operand 373886 states and 598674 transitions. Second operand  has 6 states, 6 states have (on average 27.0) internal successors, (162), 6 states have internal predecessors, (162), 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)