./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.production_cell.3.prop1-back-serstep.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.production_cell.3.prop1-back-serstep.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', '488726b8ccc0b612f25ee0101dd53df4c2193db1507ae34a5375bcd64b035150'] 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.production_cell.3.prop1-back-serstep.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 488726b8ccc0b612f25ee0101dd53df4c2193db1507ae34a5375bcd64b035150 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 03:28:50,203 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 03:28:50,289 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-07 03:28:50,294 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 03:28:50,294 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 03:28:50,313 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 03:28:50,314 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 03:28:50,314 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 03:28:50,314 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 03:28:50,314 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 03:28:50,314 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 03:28:50,314 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 03:28:50,315 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 03:28:50,315 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 03:28:50,315 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 03:28:50,315 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 03:28:50,315 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 03:28:50,316 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 03:28:50,316 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 03:28:50,316 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 03:28:50,316 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 03:28:50,316 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 03:28:50,316 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 03:28:50,316 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 03:28:50,316 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 03:28:50,316 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 03:28:50,316 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 03:28:50,316 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 03:28:50,317 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 03:28:50,317 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 03:28:50,317 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 03:28:50,317 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 03:28:50,317 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 03:28:50,317 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 03:28:50,317 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 03:28:50,317 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 03:28:50,317 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 03:28:50,317 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 03:28:50,317 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 03:28:50,317 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 -> 488726b8ccc0b612f25ee0101dd53df4c2193db1507ae34a5375bcd64b035150 [2024-11-07 03:28:50,593 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 03:28:50,603 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 03:28:50,605 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 03:28:50,606 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 03:28:50,606 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 03:28:50,607 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.production_cell.3.prop1-back-serstep.c [2024-11-07 03:28:51,875 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 03:28:52,367 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 03:28:52,368 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.production_cell.3.prop1-back-serstep.c [2024-11-07 03:28:52,394 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7c6905dcf/7058b556c4914953a904342718f5c61b/FLAG2165c9932 [2024-11-07 03:28:52,411 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7c6905dcf/7058b556c4914953a904342718f5c61b [2024-11-07 03:28:52,414 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 03:28:52,415 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 03:28:52,417 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 03:28:52,418 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 03:28:52,421 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 03:28:52,422 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:28:52" (1/1) ... [2024-11-07 03:28:52,424 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cb11528 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:28:52, skipping insertion in model container [2024-11-07 03:28:52,424 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:28:52" (1/1) ... [2024-11-07 03:28:52,485 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 03:28:52,674 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.production_cell.3.prop1-back-serstep.c[1183,1196] [2024-11-07 03:28:53,158 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 03:28:53,168 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 03:28:53,180 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.production_cell.3.prop1-back-serstep.c[1183,1196] [2024-11-07 03:28:53,443 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 03:28:53,456 INFO L204 MainTranslator]: Completed translation [2024-11-07 03:28:53,458 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:28:53 WrapperNode [2024-11-07 03:28:53,458 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 03:28:53,459 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 03:28:53,459 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 03:28:53,459 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 03:28:53,464 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:28:53" (1/1) ... [2024-11-07 03:28:53,600 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:28:53" (1/1) ... [2024-11-07 03:28:54,936 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 12900 [2024-11-07 03:28:54,938 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 03:28:54,939 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 03:28:54,939 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 03:28:54,939 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 03:28:54,948 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:28:53" (1/1) ... [2024-11-07 03:28:54,948 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:28:53" (1/1) ... [2024-11-07 03:28:55,350 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:28:53" (1/1) ... [2024-11-07 03:28:55,571 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 03:28:55,571 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:28:53" (1/1) ... [2024-11-07 03:28:55,572 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:28:53" (1/1) ... [2024-11-07 03:28:55,937 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:28:53" (1/1) ... [2024-11-07 03:28:56,005 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:28:53" (1/1) ... [2024-11-07 03:28:56,104 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:28:53" (1/1) ... [2024-11-07 03:28:56,182 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:28:53" (1/1) ... [2024-11-07 03:28:56,474 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 03:28:56,475 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 03:28:56,475 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 03:28:56,475 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 03:28:56,476 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:28:53" (1/1) ... [2024-11-07 03:28:56,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 03:28:56,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 03:28:56,505 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 03:28:56,511 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 03:28:56,529 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 03:28:56,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 03:28:56,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 03:28:56,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 03:28:57,399 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 03:28:57,401 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 03:29:19,930 INFO L? ?]: Removed 7068 outVars from TransFormulas that were not future-live. [2024-11-07 03:29:19,931 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 03:29:20,030 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 03:29:20,031 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-07 03:29:20,031 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:29:20 BoogieIcfgContainer [2024-11-07 03:29:20,031 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 03:29:20,034 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 03:29:20,034 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 03:29:20,039 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 03:29:20,039 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:28:52" (1/3) ... [2024-11-07 03:29:20,039 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43bfcf1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:29:20, skipping insertion in model container [2024-11-07 03:29:20,040 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:28:53" (2/3) ... [2024-11-07 03:29:20,041 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43bfcf1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:29:20, skipping insertion in model container [2024-11-07 03:29:20,041 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:29:20" (3/3) ... [2024-11-07 03:29:20,042 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.production_cell.3.prop1-back-serstep.c [2024-11-07 03:29:20,054 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 03:29:20,055 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-07 03:29:20,191 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 03:29:20,201 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;@4d8f254f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 03:29:20,201 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-07 03:29:20,222 INFO L276 IsEmpty]: Start isEmpty. Operand has 4534 states, 4532 states have (on average 1.4997793468667255) internal successors, (6797), 4533 states have internal predecessors, (6797), 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 03:29:20,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 466 [2024-11-07 03:29:20,254 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:29:20,255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:29:20,255 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:29:20,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:29:20,260 INFO L85 PathProgramCache]: Analyzing trace with hash 1230780726, now seen corresponding path program 1 times [2024-11-07 03:29:20,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:29:20,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867839009] [2024-11-07 03:29:20,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:29:20,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:29:21,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:29:23,466 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 03:29:23,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:29:23,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867839009] [2024-11-07 03:29:23,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867839009] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:29:23,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:29:23,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 03:29:23,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778241891] [2024-11-07 03:29:23,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:29:23,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 03:29:23,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:29:23,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 03:29:23,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 03:29:23,561 INFO L87 Difference]: Start difference. First operand has 4534 states, 4532 states have (on average 1.4997793468667255) internal successors, (6797), 4533 states have internal predecessors, (6797), 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 5 states, 5 states have (on average 93.0) internal successors, (465), 5 states have internal predecessors, (465), 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 03:29:28,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:29:28,762 INFO L93 Difference]: Finished difference Result 12908 states and 19357 transitions. [2024-11-07 03:29:28,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 03:29:28,764 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 93.0) internal successors, (465), 5 states have internal predecessors, (465), 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 465 [2024-11-07 03:29:28,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:29:28,828 INFO L225 Difference]: With dead ends: 12908 [2024-11-07 03:29:28,830 INFO L226 Difference]: Without dead ends: 8620 [2024-11-07 03:29:28,849 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-07 03:29:28,853 INFO L432 NwaCegarLoop]: 5032 mSDtfsCounter, 6230 mSDsluCounter, 14969 mSDsCounter, 0 mSdLazyCounter, 6804 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6230 SdHoareTripleChecker+Valid, 20001 SdHoareTripleChecker+Invalid, 6805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2024-11-07 03:29:28,854 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6230 Valid, 20001 Invalid, 6805 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 6804 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2024-11-07 03:29:28,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8620 states. [2024-11-07 03:29:29,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8620 to 4822. [2024-11-07 03:29:29,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4822 states, 4821 states have (on average 1.4992740095415888) internal successors, (7228), 4821 states have internal predecessors, (7228), 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 03:29:29,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4822 states to 4822 states and 7228 transitions. [2024-11-07 03:29:29,100 INFO L78 Accepts]: Start accepts. Automaton has 4822 states and 7228 transitions. Word has length 465 [2024-11-07 03:29:29,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:29:29,102 INFO L471 AbstractCegarLoop]: Abstraction has 4822 states and 7228 transitions. [2024-11-07 03:29:29,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 93.0) internal successors, (465), 5 states have internal predecessors, (465), 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 03:29:29,103 INFO L276 IsEmpty]: Start isEmpty. Operand 4822 states and 7228 transitions. [2024-11-07 03:29:29,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 468 [2024-11-07 03:29:29,112 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:29:29,112 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:29:29,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 03:29:29,113 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:29:29,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:29:29,114 INFO L85 PathProgramCache]: Analyzing trace with hash -633476941, now seen corresponding path program 1 times [2024-11-07 03:29:29,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:29:29,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868454679] [2024-11-07 03:29:29,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:29:29,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:29:29,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:29:30,247 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 03:29:30,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:29:30,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868454679] [2024-11-07 03:29:30,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868454679] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:29:30,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:29:30,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 03:29:30,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942453220] [2024-11-07 03:29:30,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:29:30,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 03:29:30,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:29:30,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 03:29:30,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-07 03:29:30,253 INFO L87 Difference]: Start difference. First operand 4822 states and 7228 transitions. Second operand has 6 states, 6 states have (on average 77.83333333333333) internal successors, (467), 6 states have internal predecessors, (467), 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 03:29:34,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:29:34,479 INFO L93 Difference]: Finished difference Result 13033 states and 19538 transitions. [2024-11-07 03:29:34,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 03:29:34,480 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 77.83333333333333) internal successors, (467), 6 states have internal predecessors, (467), 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 467 [2024-11-07 03:29:34,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:29:34,511 INFO L225 Difference]: With dead ends: 13033 [2024-11-07 03:29:34,511 INFO L226 Difference]: Without dead ends: 8748 [2024-11-07 03:29:34,518 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-07 03:29:34,522 INFO L432 NwaCegarLoop]: 5475 mSDtfsCounter, 6290 mSDsluCounter, 22009 mSDsCounter, 0 mSdLazyCounter, 6669 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6290 SdHoareTripleChecker+Valid, 27484 SdHoareTripleChecker+Invalid, 6731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 6669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-07 03:29:34,522 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6290 Valid, 27484 Invalid, 6731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 6669 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-11-07 03:29:34,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8748 states. [2024-11-07 03:29:34,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8748 to 4829. [2024-11-07 03:29:34,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4829 states, 4828 states have (on average 1.4989643744821872) internal successors, (7237), 4828 states have internal predecessors, (7237), 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 03:29:34,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4829 states to 4829 states and 7237 transitions. [2024-11-07 03:29:34,661 INFO L78 Accepts]: Start accepts. Automaton has 4829 states and 7237 transitions. Word has length 467 [2024-11-07 03:29:34,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:29:34,662 INFO L471 AbstractCegarLoop]: Abstraction has 4829 states and 7237 transitions. [2024-11-07 03:29:34,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 77.83333333333333) internal successors, (467), 6 states have internal predecessors, (467), 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 03:29:34,662 INFO L276 IsEmpty]: Start isEmpty. Operand 4829 states and 7237 transitions. [2024-11-07 03:29:34,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 469 [2024-11-07 03:29:34,673 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:29:34,673 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:29:34,673 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 03:29:34,674 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:29:34,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:29:34,677 INFO L85 PathProgramCache]: Analyzing trace with hash 418548830, now seen corresponding path program 1 times [2024-11-07 03:29:34,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:29:34,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842675871] [2024-11-07 03:29:34,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:29:34,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:29:34,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:29:36,004 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 03:29:36,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:29:36,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842675871] [2024-11-07 03:29:36,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842675871] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:29:36,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:29:36,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 03:29:36,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785172483] [2024-11-07 03:29:36,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:29:36,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 03:29:36,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:29:36,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 03:29:36,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 03:29:36,015 INFO L87 Difference]: Start difference. First operand 4829 states and 7237 transitions. Second operand has 4 states, 4 states have (on average 117.0) internal successors, (468), 4 states have internal predecessors, (468), 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 03:29:36,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:29:36,097 INFO L93 Difference]: Finished difference Result 4833 states and 7241 transitions. [2024-11-07 03:29:36,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 03:29:36,102 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 117.0) internal successors, (468), 4 states have internal predecessors, (468), 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 468 [2024-11-07 03:29:36,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:29:36,133 INFO L225 Difference]: With dead ends: 4833 [2024-11-07 03:29:36,133 INFO L226 Difference]: Without dead ends: 4831 [2024-11-07 03:29:36,136 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 03:29:36,140 INFO L432 NwaCegarLoop]: 6791 mSDtfsCounter, 0 mSDsluCounter, 13576 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 20367 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 03:29:36,140 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 20367 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 03:29:36,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4831 states. [2024-11-07 03:29:36,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4831 to 4831. [2024-11-07 03:29:36,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4831 states, 4830 states have (on average 1.4987577639751553) internal successors, (7239), 4830 states have internal predecessors, (7239), 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 03:29:36,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4831 states to 4831 states and 7239 transitions. [2024-11-07 03:29:36,239 INFO L78 Accepts]: Start accepts. Automaton has 4831 states and 7239 transitions. Word has length 468 [2024-11-07 03:29:36,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:29:36,244 INFO L471 AbstractCegarLoop]: Abstraction has 4831 states and 7239 transitions. [2024-11-07 03:29:36,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 117.0) internal successors, (468), 4 states have internal predecessors, (468), 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 03:29:36,244 INFO L276 IsEmpty]: Start isEmpty. Operand 4831 states and 7239 transitions. [2024-11-07 03:29:36,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 470 [2024-11-07 03:29:36,252 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:29:36,252 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:29:36,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 03:29:36,253 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:29:36,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:29:36,256 INFO L85 PathProgramCache]: Analyzing trace with hash 91809985, now seen corresponding path program 1 times [2024-11-07 03:29:36,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:29:36,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835119172] [2024-11-07 03:29:36,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:29:36,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:29:36,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:29:37,338 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 03:29:37,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:29:37,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835119172] [2024-11-07 03:29:37,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835119172] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:29:37,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:29:37,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 03:29:37,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447397480] [2024-11-07 03:29:37,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:29:37,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 03:29:37,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:29:37,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 03:29:37,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 03:29:37,341 INFO L87 Difference]: Start difference. First operand 4831 states and 7239 transitions. Second operand has 4 states, 4 states have (on average 117.25) internal successors, (469), 4 states have internal predecessors, (469), 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 03:29:37,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:29:37,442 INFO L93 Difference]: Finished difference Result 9120 states and 13669 transitions. [2024-11-07 03:29:37,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 03:29:37,444 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 117.25) internal successors, (469), 4 states have internal predecessors, (469), 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 469 [2024-11-07 03:29:37,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:29:37,460 INFO L225 Difference]: With dead ends: 9120 [2024-11-07 03:29:37,460 INFO L226 Difference]: Without dead ends: 4833 [2024-11-07 03:29:37,467 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 03:29:37,468 INFO L432 NwaCegarLoop]: 6791 mSDtfsCounter, 0 mSDsluCounter, 13572 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 20363 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 03:29:37,468 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 20363 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 03:29:37,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4833 states. [2024-11-07 03:29:37,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4833 to 4833. [2024-11-07 03:29:37,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4833 states, 4832 states have (on average 1.4985513245033113) internal successors, (7241), 4832 states have internal predecessors, (7241), 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 03:29:37,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4833 states to 4833 states and 7241 transitions. [2024-11-07 03:29:37,552 INFO L78 Accepts]: Start accepts. Automaton has 4833 states and 7241 transitions. Word has length 469 [2024-11-07 03:29:37,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:29:37,553 INFO L471 AbstractCegarLoop]: Abstraction has 4833 states and 7241 transitions. [2024-11-07 03:29:37,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 117.25) internal successors, (469), 4 states have internal predecessors, (469), 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 03:29:37,554 INFO L276 IsEmpty]: Start isEmpty. Operand 4833 states and 7241 transitions. [2024-11-07 03:29:37,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 471 [2024-11-07 03:29:37,557 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:29:37,557 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:29:37,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 03:29:37,558 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:29:37,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:29:37,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1748146583, now seen corresponding path program 1 times [2024-11-07 03:29:37,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:29:37,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769198914] [2024-11-07 03:29:37,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:29:37,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:29:37,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:29:38,394 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 03:29:38,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:29:38,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769198914] [2024-11-07 03:29:38,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769198914] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:29:38,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:29:38,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 03:29:38,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199143435] [2024-11-07 03:29:38,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:29:38,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 03:29:38,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:29:38,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 03:29:38,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 03:29:38,402 INFO L87 Difference]: Start difference. First operand 4833 states and 7241 transitions. Second operand has 5 states, 5 states have (on average 94.0) internal successors, (470), 5 states have internal predecessors, (470), 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 03:29:38,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:29:38,559 INFO L93 Difference]: Finished difference Result 13099 states and 19633 transitions. [2024-11-07 03:29:38,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 03:29:38,560 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 94.0) internal successors, (470), 5 states have internal predecessors, (470), 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 470 [2024-11-07 03:29:38,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:29:38,601 INFO L225 Difference]: With dead ends: 13099 [2024-11-07 03:29:38,601 INFO L226 Difference]: Without dead ends: 8810 [2024-11-07 03:29:38,609 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-07 03:29:38,610 INFO L432 NwaCegarLoop]: 6789 mSDtfsCounter, 6312 mSDsluCounter, 19994 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6312 SdHoareTripleChecker+Valid, 26783 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 03:29:38,610 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6312 Valid, 26783 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 03:29:38,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8810 states. [2024-11-07 03:29:38,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8810 to 5205. [2024-11-07 03:29:38,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5205 states, 5204 states have (on average 1.4984627209838586) internal successors, (7798), 5204 states have internal predecessors, (7798), 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 03:29:38,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5205 states to 5205 states and 7798 transitions. [2024-11-07 03:29:38,723 INFO L78 Accepts]: Start accepts. Automaton has 5205 states and 7798 transitions. Word has length 470 [2024-11-07 03:29:38,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:29:38,724 INFO L471 AbstractCegarLoop]: Abstraction has 5205 states and 7798 transitions. [2024-11-07 03:29:38,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 94.0) internal successors, (470), 5 states have internal predecessors, (470), 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 03:29:38,724 INFO L276 IsEmpty]: Start isEmpty. Operand 5205 states and 7798 transitions. [2024-11-07 03:29:38,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2614 [2024-11-07 03:29:38,767 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:29:38,769 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1] [2024-11-07 03:29:38,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 03:29:38,769 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:29:38,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:29:38,771 INFO L85 PathProgramCache]: Analyzing trace with hash 874220228, now seen corresponding path program 1 times [2024-11-07 03:29:38,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:29:38,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969943051] [2024-11-07 03:29:38,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:29:38,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:29:41,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:29:45,439 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 334 trivial. 0 not checked. [2024-11-07 03:29:45,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:29:45,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969943051] [2024-11-07 03:29:45,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969943051] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:29:45,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:29:45,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 03:29:45,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335540365] [2024-11-07 03:29:45,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:29:45,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 03:29:45,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:29:45,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 03:29:45,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 03:29:45,445 INFO L87 Difference]: Start difference. First operand 5205 states and 7798 transitions. Second operand has 5 states, 5 states have (on average 456.4) internal successors, (2282), 5 states have internal predecessors, (2282), 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 03:29:45,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:29:45,588 INFO L93 Difference]: Finished difference Result 9498 states and 14232 transitions. [2024-11-07 03:29:45,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 03:29:45,589 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 456.4) internal successors, (2282), 5 states have internal predecessors, (2282), 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 2613 [2024-11-07 03:29:45,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:29:45,607 INFO L225 Difference]: With dead ends: 9498 [2024-11-07 03:29:45,608 INFO L226 Difference]: Without dead ends: 5209 [2024-11-07 03:29:45,614 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 03:29:45,616 INFO L432 NwaCegarLoop]: 6791 mSDtfsCounter, 0 mSDsluCounter, 20357 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 27148 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 03:29:45,616 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 27148 Invalid, 24 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 03:29:45,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5209 states. [2024-11-07 03:29:45,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5209 to 5205. [2024-11-07 03:29:45,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5205 states, 5204 states have (on average 1.4984627209838586) internal successors, (7798), 5204 states have internal predecessors, (7798), 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 03:29:45,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5205 states to 5205 states and 7798 transitions. [2024-11-07 03:29:45,718 INFO L78 Accepts]: Start accepts. Automaton has 5205 states and 7798 transitions. Word has length 2613 [2024-11-07 03:29:45,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:29:45,723 INFO L471 AbstractCegarLoop]: Abstraction has 5205 states and 7798 transitions. [2024-11-07 03:29:45,723 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 456.4) internal successors, (2282), 5 states have internal predecessors, (2282), 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 03:29:45,724 INFO L276 IsEmpty]: Start isEmpty. Operand 5205 states and 7798 transitions. [2024-11-07 03:29:45,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2615 [2024-11-07 03:29:45,771 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:29:45,773 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1] [2024-11-07 03:29:45,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 03:29:45,773 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:29:45,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:29:45,774 INFO L85 PathProgramCache]: Analyzing trace with hash -2055054213, now seen corresponding path program 1 times [2024-11-07 03:29:45,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:29:45,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339729547] [2024-11-07 03:29:45,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:29:45,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:29:47,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:29:52,122 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 332 trivial. 0 not checked. [2024-11-07 03:29:52,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:29:52,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339729547] [2024-11-07 03:29:52,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339729547] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:29:52,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:29:52,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 03:29:52,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773122992] [2024-11-07 03:29:52,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:29:52,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 03:29:52,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:29:52,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 03:29:52,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 03:29:52,134 INFO L87 Difference]: Start difference. First operand 5205 states and 7798 transitions. Second operand has 5 states, 5 states have (on average 457.0) internal successors, (2285), 5 states have internal predecessors, (2285), 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 03:29:52,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:29:52,263 INFO L93 Difference]: Finished difference Result 9502 states and 14238 transitions. [2024-11-07 03:29:52,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 03:29:52,265 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 457.0) internal successors, (2285), 5 states have internal predecessors, (2285), 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 2614 [2024-11-07 03:29:52,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:29:52,279 INFO L225 Difference]: With dead ends: 9502 [2024-11-07 03:29:52,280 INFO L226 Difference]: Without dead ends: 5209 [2024-11-07 03:29:52,286 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 03:29:52,287 INFO L432 NwaCegarLoop]: 6791 mSDtfsCounter, 0 mSDsluCounter, 20357 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 27148 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 03:29:52,288 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 27148 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 03:29:52,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5209 states. [2024-11-07 03:29:52,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5209 to 5207. [2024-11-07 03:29:52,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5207 states, 5206 states have (on average 1.498271225509028) internal successors, (7800), 5206 states have internal predecessors, (7800), 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 03:29:52,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5207 states to 5207 states and 7800 transitions. [2024-11-07 03:29:52,450 INFO L78 Accepts]: Start accepts. Automaton has 5207 states and 7800 transitions. Word has length 2614 [2024-11-07 03:29:52,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:29:52,458 INFO L471 AbstractCegarLoop]: Abstraction has 5207 states and 7800 transitions. [2024-11-07 03:29:52,459 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 457.0) internal successors, (2285), 5 states have internal predecessors, (2285), 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 03:29:52,459 INFO L276 IsEmpty]: Start isEmpty. Operand 5207 states and 7800 transitions. [2024-11-07 03:29:52,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2616 [2024-11-07 03:29:52,559 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:29:52,563 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:29:52,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 03:29:52,564 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:29:52,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:29:52,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1832025021, now seen corresponding path program 1 times [2024-11-07 03:29:52,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:29:52,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521919957] [2024-11-07 03:29:52,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:29:52,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:29:55,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat