./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal79.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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/hardware-verification-bv/btor2c-lazyMod.cal79.c', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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', '64bit', '--witnessprinter.graph.data.programhash', 'ab7cb07dc4ad6d38eaa2a2ae31de55d905911715153dbe23552e7557ccf72ec8'] 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/hardware-verification-bv/btor2c-lazyMod.cal79.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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 64bit --witnessprinter.graph.data.programhash ab7cb07dc4ad6d38eaa2a2ae31de55d905911715153dbe23552e7557ccf72ec8 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 02:34:55,935 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 02:34:56,011 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-07 02:34:56,018 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 02:34:56,019 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 02:34:56,048 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 02:34:56,050 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 02:34:56,051 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 02:34:56,051 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 02:34:56,051 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 02:34:56,051 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 02:34:56,052 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 02:34:56,052 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 02:34:56,052 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 02:34:56,052 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 02:34:56,053 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 02:34:56,053 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 02:34:56,053 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 02:34:56,054 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 02:34:56,054 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 02:34:56,054 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 02:34:56,054 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 02:34:56,054 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 02:34:56,054 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 02:34:56,054 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 02:34:56,054 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 02:34:56,054 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 02:34:56,054 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 02:34:56,054 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 02:34:56,054 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 02:34:56,054 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 02:34:56,054 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 02:34:56,054 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 02:34:56,055 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 02:34:56,055 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 02:34:56,055 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 02:34:56,055 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 02:34:56,055 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 02:34:56,055 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 02:34:56,055 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ab7cb07dc4ad6d38eaa2a2ae31de55d905911715153dbe23552e7557ccf72ec8 [2024-11-07 02:34:56,323 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 02:34:56,330 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 02:34:56,332 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 02:34:56,333 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 02:34:56,334 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 02:34:56,335 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal79.c [2024-11-07 02:34:57,714 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 02:34:58,249 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 02:34:58,249 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal79.c [2024-11-07 02:34:58,315 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e6533dc62/84b6d8fdcb584a81bcba869b5cfd73dc/FLAGaccb6d38d [2024-11-07 02:34:58,338 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e6533dc62/84b6d8fdcb584a81bcba869b5cfd73dc [2024-11-07 02:34:58,341 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 02:34:58,343 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 02:34:58,344 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 02:34:58,345 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 02:34:58,349 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 02:34:58,350 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:34:58" (1/1) ... [2024-11-07 02:34:58,350 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ccf88ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:34:58, skipping insertion in model container [2024-11-07 02:34:58,351 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:34:58" (1/1) ... [2024-11-07 02:34:58,519 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 02:34:58,805 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/hardware-verification-bv/btor2c-lazyMod.cal79.c[1245,1258] [2024-11-07 02:35:00,010 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 02:35:00,019 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 02:35:00,031 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/hardware-verification-bv/btor2c-lazyMod.cal79.c[1245,1258] [2024-11-07 02:35:00,771 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 02:35:00,791 INFO L204 MainTranslator]: Completed translation [2024-11-07 02:35:00,792 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:35:00 WrapperNode [2024-11-07 02:35:00,795 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 02:35:00,796 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 02:35:00,796 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 02:35:00,797 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 02:35:00,802 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:35:00" (1/1) ... [2024-11-07 02:35:01,186 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:35:00" (1/1) ... [2024-11-07 02:35:03,950 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 36172 [2024-11-07 02:35:03,951 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 02:35:03,952 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 02:35:03,952 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 02:35:03,952 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 02:35:03,958 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:35:00" (1/1) ... [2024-11-07 02:35:03,958 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:35:00" (1/1) ... [2024-11-07 02:35:04,925 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:35:00" (1/1) ... [2024-11-07 02:35:05,360 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2024-11-07 02:35:05,361 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:35:00" (1/1) ... [2024-11-07 02:35:05,362 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:35:00" (1/1) ... [2024-11-07 02:35:06,038 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:35:00" (1/1) ... [2024-11-07 02:35:06,210 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:35:00" (1/1) ... [2024-11-07 02:35:06,424 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:35:00" (1/1) ... [2024-11-07 02:35:06,602 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:35:00" (1/1) ... [2024-11-07 02:35:07,156 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 02:35:07,157 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 02:35:07,157 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 02:35:07,157 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 02:35:07,158 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:35:00" (1/1) ... [2024-11-07 02:35:07,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 02:35:07,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 02:35:07,191 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 02:35:07,198 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 02:35:07,219 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 02:35:07,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 02:35:07,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-07 02:35:07,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 02:35:07,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 02:35:08,886 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 02:35:08,888 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 02:36:06,526 INFO L? ?]: Removed 19982 outVars from TransFormulas that were not future-live. [2024-11-07 02:36:06,526 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 02:36:06,677 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 02:36:06,677 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-07 02:36:06,678 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:36:06 BoogieIcfgContainer [2024-11-07 02:36:06,678 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 02:36:06,681 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 02:36:06,682 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 02:36:06,686 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 02:36:06,686 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:34:58" (1/3) ... [2024-11-07 02:36:06,687 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7db1e132 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:36:06, skipping insertion in model container [2024-11-07 02:36:06,687 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:35:00" (2/3) ... [2024-11-07 02:36:06,687 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7db1e132 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:36:06, skipping insertion in model container [2024-11-07 02:36:06,688 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:36:06" (3/3) ... [2024-11-07 02:36:06,689 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal79.c [2024-11-07 02:36:06,704 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 02:36:06,705 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-07 02:36:06,937 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 02:36:06,949 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;@ebeddfe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 02:36:06,950 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-07 02:36:06,987 INFO L276 IsEmpty]: Start isEmpty. Operand has 12378 states, 12376 states have (on average 1.500404007756949) internal successors, (18569), 12377 states have internal predecessors, (18569), 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 02:36:07,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-07 02:36:07,001 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:36:07,002 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 02:36:07,003 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:36:07,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:36:07,009 INFO L85 PathProgramCache]: Analyzing trace with hash -1380176716, now seen corresponding path program 1 times [2024-11-07 02:36:07,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:36:07,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997150729] [2024-11-07 02:36:07,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:36:07,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:36:07,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:36:08,375 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 02:36:08,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:36:08,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997150729] [2024-11-07 02:36:08,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997150729] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:36:08,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:36:08,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 02:36:08,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899004253] [2024-11-07 02:36:08,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:36:08,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 02:36:08,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:36:08,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 02:36:08,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 02:36:08,434 INFO L87 Difference]: Start difference. First operand has 12378 states, 12376 states have (on average 1.500404007756949) internal successors, (18569), 12377 states have internal predecessors, (18569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 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 02:36:08,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:36:08,932 INFO L93 Difference]: Finished difference Result 24597 states and 36903 transitions. [2024-11-07 02:36:08,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 02:36:08,934 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 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 02:36:08,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:36:09,006 INFO L225 Difference]: With dead ends: 24597 [2024-11-07 02:36:09,008 INFO L226 Difference]: Without dead ends: 12377 [2024-11-07 02:36:09,034 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 02:36:09,037 INFO L432 NwaCegarLoop]: 18563 mSDtfsCounter, 0 mSDsluCounter, 37120 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 55683 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 02:36:09,040 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 55683 Invalid, 11 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 02:36:09,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12377 states. [2024-11-07 02:36:09,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12377 to 12377. [2024-11-07 02:36:09,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12377 states, 12376 states have (on average 1.5002424046541694) internal successors, (18567), 12376 states have internal predecessors, (18567), 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 02:36:09,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12377 states to 12377 states and 18567 transitions. [2024-11-07 02:36:09,455 INFO L78 Accepts]: Start accepts. Automaton has 12377 states and 18567 transitions. Word has length 133 [2024-11-07 02:36:09,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:36:09,456 INFO L471 AbstractCegarLoop]: Abstraction has 12377 states and 18567 transitions. [2024-11-07 02:36:09,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 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 02:36:09,460 INFO L276 IsEmpty]: Start isEmpty. Operand 12377 states and 18567 transitions. [2024-11-07 02:36:09,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-07 02:36:09,462 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:36:09,463 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, 1] [2024-11-07 02:36:09,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 02:36:09,463 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:36:09,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:36:09,464 INFO L85 PathProgramCache]: Analyzing trace with hash 165890749, now seen corresponding path program 1 times [2024-11-07 02:36:09,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:36:09,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334407034] [2024-11-07 02:36:09,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:36:09,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:36:09,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:36:09,977 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 02:36:09,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:36:09,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334407034] [2024-11-07 02:36:09,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334407034] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:36:09,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:36:09,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 02:36:09,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337259685] [2024-11-07 02:36:09,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:36:09,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 02:36:09,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:36:09,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 02:36:09,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 02:36:09,981 INFO L87 Difference]: Start difference. First operand 12377 states and 18567 transitions. Second operand has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 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 02:36:10,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:36:10,332 INFO L93 Difference]: Finished difference Result 24598 states and 36901 transitions. [2024-11-07 02:36:10,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 02:36:10,333 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 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 134 [2024-11-07 02:36:10,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:36:10,390 INFO L225 Difference]: With dead ends: 24598 [2024-11-07 02:36:10,391 INFO L226 Difference]: Without dead ends: 12379 [2024-11-07 02:36:10,410 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 02:36:10,411 INFO L432 NwaCegarLoop]: 18563 mSDtfsCounter, 0 mSDsluCounter, 37116 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 55679 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 02:36:10,411 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 55679 Invalid, 15 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 02:36:10,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12379 states. [2024-11-07 02:36:10,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12379 to 12379. [2024-11-07 02:36:10,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12379 states, 12378 states have (on average 1.5001615769914365) internal successors, (18569), 12378 states have internal predecessors, (18569), 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 02:36:10,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12379 states to 12379 states and 18569 transitions. [2024-11-07 02:36:10,690 INFO L78 Accepts]: Start accepts. Automaton has 12379 states and 18569 transitions. Word has length 134 [2024-11-07 02:36:10,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:36:10,690 INFO L471 AbstractCegarLoop]: Abstraction has 12379 states and 18569 transitions. [2024-11-07 02:36:10,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 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 02:36:10,691 INFO L276 IsEmpty]: Start isEmpty. Operand 12379 states and 18569 transitions. [2024-11-07 02:36:10,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-07 02:36:10,696 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:36:10,696 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, 1, 1] [2024-11-07 02:36:10,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 02:36:10,696 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:36:10,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:36:10,697 INFO L85 PathProgramCache]: Analyzing trace with hash -250319187, now seen corresponding path program 1 times [2024-11-07 02:36:10,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:36:10,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128626060] [2024-11-07 02:36:10,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:36:10,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:36:10,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:36:11,560 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 02:36:11,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:36:11,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128626060] [2024-11-07 02:36:11,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128626060] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:36:11,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:36:11,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 02:36:11,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944796436] [2024-11-07 02:36:11,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:36:11,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 02:36:11,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:36:11,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 02:36:11,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-07 02:36:11,566 INFO L87 Difference]: Start difference. First operand 12379 states and 18569 transitions. Second operand has 6 states, 6 states have (on average 22.5) internal successors, (135), 6 states have internal predecessors, (135), 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 02:36:12,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:36:12,448 INFO L93 Difference]: Finished difference Result 24709 states and 37061 transitions. [2024-11-07 02:36:12,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 02:36:12,449 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 6 states have internal predecessors, (135), 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 135 [2024-11-07 02:36:12,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:36:12,483 INFO L225 Difference]: With dead ends: 24709 [2024-11-07 02:36:12,483 INFO L226 Difference]: Without dead ends: 12488 [2024-11-07 02:36:12,500 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-07 02:36:12,501 INFO L432 NwaCegarLoop]: 18498 mSDtfsCounter, 18787 mSDsluCounter, 55496 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18787 SdHoareTripleChecker+Valid, 73994 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 02:36:12,502 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18787 Valid, 73994 Invalid, 266 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 02:36:12,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12488 states. [2024-11-07 02:36:12,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12488 to 12469. [2024-11-07 02:36:12,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12469 states, 12468 states have (on average 1.5000802053256337) internal successors, (18703), 12468 states have internal predecessors, (18703), 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 02:36:12,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12469 states to 12469 states and 18703 transitions. [2024-11-07 02:36:12,774 INFO L78 Accepts]: Start accepts. Automaton has 12469 states and 18703 transitions. Word has length 135 [2024-11-07 02:36:12,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:36:12,775 INFO L471 AbstractCegarLoop]: Abstraction has 12469 states and 18703 transitions. [2024-11-07 02:36:12,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 6 states have internal predecessors, (135), 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 02:36:12,776 INFO L276 IsEmpty]: Start isEmpty. Operand 12469 states and 18703 transitions. [2024-11-07 02:36:12,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-07 02:36:12,777 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:36:12,778 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, 1, 1, 1] [2024-11-07 02:36:12,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 02:36:12,779 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:36:12,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:36:12,779 INFO L85 PathProgramCache]: Analyzing trace with hash 1738927428, now seen corresponding path program 1 times [2024-11-07 02:36:12,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:36:12,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469397092] [2024-11-07 02:36:12,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:36:12,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:36:12,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:36:13,699 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 02:36:13,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:36:13,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469397092] [2024-11-07 02:36:13,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469397092] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:36:13,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:36:13,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 02:36:13,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342786982] [2024-11-07 02:36:13,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:36:13,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 02:36:13,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:36:13,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 02:36:13,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-07 02:36:13,702 INFO L87 Difference]: Start difference. First operand 12469 states and 18703 transitions. Second operand has 8 states, 8 states have (on average 17.0) internal successors, (136), 8 states have internal predecessors, (136), 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 02:36:14,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:36:14,746 INFO L93 Difference]: Finished difference Result 24711 states and 37063 transitions. [2024-11-07 02:36:14,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 02:36:14,746 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.0) internal successors, (136), 8 states have internal predecessors, (136), 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 136 [2024-11-07 02:36:14,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:36:14,773 INFO L225 Difference]: With dead ends: 24711 [2024-11-07 02:36:14,773 INFO L226 Difference]: Without dead ends: 12490 [2024-11-07 02:36:14,790 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2024-11-07 02:36:14,791 INFO L432 NwaCegarLoop]: 18497 mSDtfsCounter, 18790 mSDsluCounter, 92481 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18790 SdHoareTripleChecker+Valid, 110978 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-07 02:36:14,792 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18790 Valid, 110978 Invalid, 412 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-07 02:36:14,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12490 states. [2024-11-07 02:36:14,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12490 to 12472. [2024-11-07 02:36:15,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12472 states, 12471 states have (on average 1.5000400930157967) internal successors, (18707), 12471 states have internal predecessors, (18707), 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 02:36:15,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12472 states to 12472 states and 18707 transitions. [2024-11-07 02:36:15,020 INFO L78 Accepts]: Start accepts. Automaton has 12472 states and 18707 transitions. Word has length 136 [2024-11-07 02:36:15,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:36:15,020 INFO L471 AbstractCegarLoop]: Abstraction has 12472 states and 18707 transitions. [2024-11-07 02:36:15,020 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.0) internal successors, (136), 8 states have internal predecessors, (136), 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 02:36:15,020 INFO L276 IsEmpty]: Start isEmpty. Operand 12472 states and 18707 transitions. [2024-11-07 02:36:15,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-07 02:36:15,022 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:36:15,022 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, 1, 1, 1, 1] [2024-11-07 02:36:15,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 02:36:15,022 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:36:15,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:36:15,023 INFO L85 PathProgramCache]: Analyzing trace with hash -1608477462, now seen corresponding path program 1 times [2024-11-07 02:36:15,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:36:15,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597275879] [2024-11-07 02:36:15,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:36:15,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:36:15,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:36:16,071 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 02:36:16,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:36:16,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597275879] [2024-11-07 02:36:16,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597275879] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:36:16,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:36:16,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 02:36:16,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728064493] [2024-11-07 02:36:16,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:36:16,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 02:36:16,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:36:16,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 02:36:16,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-07 02:36:16,072 INFO L87 Difference]: Start difference. First operand 12472 states and 18707 transitions. Second operand has 9 states, 9 states have (on average 15.222222222222221) internal successors, (137), 9 states have internal predecessors, (137), 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 02:36:17,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:36:17,042 INFO L93 Difference]: Finished difference Result 24711 states and 37062 transitions. [2024-11-07 02:36:17,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 02:36:17,042 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 15.222222222222221) internal successors, (137), 9 states have internal predecessors, (137), 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 137 [2024-11-07 02:36:17,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:36:17,071 INFO L225 Difference]: With dead ends: 24711 [2024-11-07 02:36:17,071 INFO L226 Difference]: Without dead ends: 12490 [2024-11-07 02:36:17,089 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2024-11-07 02:36:17,090 INFO L432 NwaCegarLoop]: 18483 mSDtfsCounter, 18785 mSDsluCounter, 92417 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18785 SdHoareTripleChecker+Valid, 110900 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-07 02:36:17,090 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18785 Valid, 110900 Invalid, 492 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 491 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-07 02:36:17,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12490 states. [2024-11-07 02:36:17,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12490 to 12476. [2024-11-07 02:36:17,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12476 states, 12475 states have (on average 1.4999599198396794) internal successors, (18712), 12475 states have internal predecessors, (18712), 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 02:36:17,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12476 states to 12476 states and 18712 transitions. [2024-11-07 02:36:17,298 INFO L78 Accepts]: Start accepts. Automaton has 12476 states and 18712 transitions. Word has length 137 [2024-11-07 02:36:17,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:36:17,298 INFO L471 AbstractCegarLoop]: Abstraction has 12476 states and 18712 transitions. [2024-11-07 02:36:17,298 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.222222222222221) internal successors, (137), 9 states have internal predecessors, (137), 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 02:36:17,299 INFO L276 IsEmpty]: Start isEmpty. Operand 12476 states and 18712 transitions. [2024-11-07 02:36:17,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-07 02:36:17,300 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:36:17,300 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, 1, 1, 1, 1, 1] [2024-11-07 02:36:17,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 02:36:17,300 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:36:17,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:36:17,301 INFO L85 PathProgramCache]: Analyzing trace with hash -1053615133, now seen corresponding path program 1 times [2024-11-07 02:36:17,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:36:17,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272793182] [2024-11-07 02:36:17,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:36:17,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:36:17,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 02:36:17,489 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-07 02:36:17,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 02:36:17,939 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-07 02:36:17,939 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-07 02:36:17,940 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-07 02:36:17,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 02:36:17,944 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1]