./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.ufo.BOUNDED-12.pals.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4f9af400 extending candidate: java ['java'] extending candidate: /usr/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/oracle-jdk-bin-*/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/openjdk-*/bin/java ['java', '/usr/bin/java'] extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java ['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java'] ['/root/.sdkman/candidates/java/21.0.5-tem/bin/java', '-Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config', '-Xmx15G', '-Xms4m', '-jar', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar', '-data', '@noDefault', '-ultimatedata', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data', '-tc', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml', '-i', '../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.ufo.BOUNDED-12.pals.c.v+nlh-reducer.c', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf', '--cacsl2boogietranslator.entry.function', 'main', '--witnessprinter.witness.directory', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux', '--witnessprinter.witness.filename', 'witness', '--witnessprinter.write.witness.besides.input.file', 'false', '--witnessprinter.graph.data.specification', 'CHECK( init(main()), LTL(G ! call(reach_error())) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '32bit', '--witnessprinter.graph.data.programhash', 'fbc1afdc0c527a20ea946075190a27bee4243d56a1bede1487b2df57b3410a93'] Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.ufo.BOUNDED-12.pals.c.v+nlh-reducer.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fbc1afdc0c527a20ea946075190a27bee4243d56a1bede1487b2df57b3410a93 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 00:28:19,096 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 00:28:19,219 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-07 00:28:19,227 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 00:28:19,227 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 00:28:19,257 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 00:28:19,259 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 00:28:19,259 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 00:28:19,260 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 00:28:19,260 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 00:28:19,261 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 00:28:19,261 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 00:28:19,261 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 00:28:19,262 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 00:28:19,262 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 00:28:19,262 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 00:28:19,262 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 00:28:19,262 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 00:28:19,263 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 00:28:19,263 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 00:28:19,263 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 00:28:19,263 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 00:28:19,263 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 00:28:19,263 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 00:28:19,263 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 00:28:19,264 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 00:28:19,264 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 00:28:19,264 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 00:28:19,264 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 00:28:19,264 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 00:28:19,264 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 00:28:19,264 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 00:28:19,265 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 00:28:19,265 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 00:28:19,265 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 00:28:19,265 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 00:28:19,265 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 00:28:19,265 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 00:28:19,266 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 00:28:19,266 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 00:28:19,266 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 00:28:19,266 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 00:28:19,266 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fbc1afdc0c527a20ea946075190a27bee4243d56a1bede1487b2df57b3410a93 [2024-11-07 00:28:19,591 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 00:28:19,598 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 00:28:19,600 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 00:28:19,601 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 00:28:19,601 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 00:28:19,602 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.ufo.BOUNDED-12.pals.c.v+nlh-reducer.c [2024-11-07 00:28:20,915 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 00:28:21,233 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 00:28:21,234 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.ufo.BOUNDED-12.pals.c.v+nlh-reducer.c [2024-11-07 00:28:21,254 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/3e61e921e/91af6a8badeb4602a96f356e2ce0a75e/FLAGe3f0985e1 [2024-11-07 00:28:21,494 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/3e61e921e/91af6a8badeb4602a96f356e2ce0a75e [2024-11-07 00:28:21,497 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 00:28:21,498 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 00:28:21,500 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 00:28:21,500 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 00:28:21,505 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 00:28:21,508 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:28:21" (1/1) ... [2024-11-07 00:28:21,509 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d6b9d51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:28:21, skipping insertion in model container [2024-11-07 00:28:21,511 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:28:21" (1/1) ... [2024-11-07 00:28:21,564 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 00:28:21,840 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.ufo.BOUNDED-12.pals.c.v+nlh-reducer.c[10019,10032] [2024-11-07 00:28:21,930 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 00:28:21,950 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 00:28:22,005 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.ufo.BOUNDED-12.pals.c.v+nlh-reducer.c[10019,10032] [2024-11-07 00:28:22,042 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 00:28:22,065 INFO L204 MainTranslator]: Completed translation [2024-11-07 00:28:22,066 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:28:22 WrapperNode [2024-11-07 00:28:22,067 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 00:28:22,068 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 00:28:22,068 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 00:28:22,068 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 00:28:22,075 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:28:22" (1/1) ... [2024-11-07 00:28:22,095 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:28:22" (1/1) ... [2024-11-07 00:28:22,164 INFO L138 Inliner]: procedures = 25, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1047 [2024-11-07 00:28:22,165 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 00:28:22,165 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 00:28:22,165 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 00:28:22,166 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 00:28:22,173 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:28:22" (1/1) ... [2024-11-07 00:28:22,174 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:28:22" (1/1) ... [2024-11-07 00:28:22,178 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:28:22" (1/1) ... [2024-11-07 00:28:22,221 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-07 00:28:22,221 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:28:22" (1/1) ... [2024-11-07 00:28:22,221 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:28:22" (1/1) ... [2024-11-07 00:28:22,234 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:28:22" (1/1) ... [2024-11-07 00:28:22,243 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:28:22" (1/1) ... [2024-11-07 00:28:22,246 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:28:22" (1/1) ... [2024-11-07 00:28:22,248 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:28:22" (1/1) ... [2024-11-07 00:28:22,253 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 00:28:22,254 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 00:28:22,254 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 00:28:22,254 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 00:28:22,255 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:28:22" (1/1) ... [2024-11-07 00:28:22,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 00:28:22,283 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 00:28:22,302 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-07 00:28:22,309 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-07 00:28:22,329 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 00:28:22,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 00:28:22,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 00:28:22,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 00:28:22,500 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 00:28:22,502 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 00:28:23,426 INFO L? ?]: Removed 117 outVars from TransFormulas that were not future-live. [2024-11-07 00:28:23,426 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 00:28:23,446 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 00:28:23,447 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-07 00:28:23,447 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:28:23 BoogieIcfgContainer [2024-11-07 00:28:23,447 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 00:28:23,452 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 00:28:23,453 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 00:28:23,461 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 00:28:23,461 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:28:21" (1/3) ... [2024-11-07 00:28:23,462 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bcb696 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:28:23, skipping insertion in model container [2024-11-07 00:28:23,462 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:28:22" (2/3) ... [2024-11-07 00:28:23,462 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bcb696 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:28:23, skipping insertion in model container [2024-11-07 00:28:23,462 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:28:23" (3/3) ... [2024-11-07 00:28:23,463 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.6.ufo.BOUNDED-12.pals.c.v+nlh-reducer.c [2024-11-07 00:28:23,477 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 00:28:23,477 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-07 00:28:23,546 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 00:28:23,560 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;@6489cfac, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 00:28:23,560 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-07 00:28:23,569 INFO L276 IsEmpty]: Start isEmpty. Operand has 259 states, 257 states have (on average 1.7237354085603114) internal successors, (443), 258 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:28:23,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-07 00:28:23,578 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:28:23,579 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] [2024-11-07 00:28:23,579 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:28:23,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:28:23,583 INFO L85 PathProgramCache]: Analyzing trace with hash 891906329, now seen corresponding path program 1 times [2024-11-07 00:28:23,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:28:23,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315532998] [2024-11-07 00:28:23,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:28:23,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:28:23,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:28:24,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:28:24,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:28:24,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315532998] [2024-11-07 00:28:24,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315532998] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:28:24,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:28:24,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 00:28:24,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527856411] [2024-11-07 00:28:24,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:28:24,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 00:28:24,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:28:24,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 00:28:24,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-07 00:28:24,551 INFO L87 Difference]: Start difference. First operand has 259 states, 257 states have (on average 1.7237354085603114) internal successors, (443), 258 states have internal predecessors, (443), 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 8 states, 8 states have (on average 12.125) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:28:24,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:28:24,936 INFO L93 Difference]: Finished difference Result 1164 states and 1888 transitions. [2024-11-07 00:28:24,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 00:28:24,940 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 8 states have internal predecessors, (97), 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 97 [2024-11-07 00:28:24,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:28:24,959 INFO L225 Difference]: With dead ends: 1164 [2024-11-07 00:28:24,959 INFO L226 Difference]: Without dead ends: 1023 [2024-11-07 00:28:24,963 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2024-11-07 00:28:24,965 INFO L432 NwaCegarLoop]: 450 mSDtfsCounter, 3889 mSDsluCounter, 3535 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3889 SdHoareTripleChecker+Valid, 3985 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 00:28:24,968 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3889 Valid, 3985 Invalid, 164 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 00:28:24,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1023 states. [2024-11-07 00:28:25,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1023 to 396. [2024-11-07 00:28:25,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 395 states have (on average 1.5012658227848101) internal successors, (593), 395 states have internal predecessors, (593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:28:25,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 593 transitions. [2024-11-07 00:28:25,062 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 593 transitions. Word has length 97 [2024-11-07 00:28:25,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:28:25,063 INFO L471 AbstractCegarLoop]: Abstraction has 396 states and 593 transitions. [2024-11-07 00:28:25,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:28:25,063 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 593 transitions. [2024-11-07 00:28:25,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-07 00:28:25,066 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:28:25,066 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] [2024-11-07 00:28:25,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 00:28:25,067 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:28:25,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:28:25,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1536603989, now seen corresponding path program 1 times [2024-11-07 00:28:25,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:28:25,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848995026] [2024-11-07 00:28:25,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:28:25,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:28:25,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:28:25,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:28:25,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:28:25,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848995026] [2024-11-07 00:28:25,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848995026] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:28:25,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:28:25,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 00:28:25,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650686992] [2024-11-07 00:28:25,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:28:25,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 00:28:25,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:28:25,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 00:28:25,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2024-11-07 00:28:25,625 INFO L87 Difference]: Start difference. First operand 396 states and 593 transitions. Second operand has 8 states, 8 states have (on average 12.25) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:28:25,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:28:25,997 INFO L93 Difference]: Finished difference Result 1973 states and 3057 transitions. [2024-11-07 00:28:25,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 00:28:25,997 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 8 states have internal predecessors, (98), 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 98 [2024-11-07 00:28:26,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:28:26,011 INFO L225 Difference]: With dead ends: 1973 [2024-11-07 00:28:26,013 INFO L226 Difference]: Without dead ends: 1677 [2024-11-07 00:28:26,015 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2024-11-07 00:28:26,017 INFO L432 NwaCegarLoop]: 755 mSDtfsCounter, 2070 mSDsluCounter, 1372 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2070 SdHoareTripleChecker+Valid, 2127 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-07 00:28:26,019 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2070 Valid, 2127 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-07 00:28:26,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1677 states. [2024-11-07 00:28:26,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1677 to 1667. [2024-11-07 00:28:26,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1667 states, 1666 states have (on average 1.546218487394958) internal successors, (2576), 1666 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:28:26,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1667 states to 1667 states and 2576 transitions. [2024-11-07 00:28:26,098 INFO L78 Accepts]: Start accepts. Automaton has 1667 states and 2576 transitions. Word has length 98 [2024-11-07 00:28:26,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:28:26,099 INFO L471 AbstractCegarLoop]: Abstraction has 1667 states and 2576 transitions. [2024-11-07 00:28:26,099 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:28:26,099 INFO L276 IsEmpty]: Start isEmpty. Operand 1667 states and 2576 transitions. [2024-11-07 00:28:26,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-07 00:28:26,104 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:28:26,104 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] [2024-11-07 00:28:26,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 00:28:26,105 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:28:26,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:28:26,105 INFO L85 PathProgramCache]: Analyzing trace with hash 520748387, now seen corresponding path program 1 times [2024-11-07 00:28:26,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:28:26,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069320643] [2024-11-07 00:28:26,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:28:26,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:28:26,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:28:26,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:28:26,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:28:26,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069320643] [2024-11-07 00:28:26,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069320643] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:28:26,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:28:26,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 00:28:26,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121499540] [2024-11-07 00:28:26,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:28:26,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:28:26,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:28:26,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:28:26,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:28:26,327 INFO L87 Difference]: Start difference. First operand 1667 states and 2576 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:28:26,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:28:26,702 INFO L93 Difference]: Finished difference Result 4413 states and 6892 transitions. [2024-11-07 00:28:26,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 00:28:26,702 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 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 99 [2024-11-07 00:28:26,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:28:26,715 INFO L225 Difference]: With dead ends: 4413 [2024-11-07 00:28:26,715 INFO L226 Difference]: Without dead ends: 2867 [2024-11-07 00:28:26,718 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:28:26,719 INFO L432 NwaCegarLoop]: 214 mSDtfsCounter, 1392 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1392 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-07 00:28:26,719 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1392 Valid, 357 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-07 00:28:26,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2867 states. [2024-11-07 00:28:26,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2867 to 2865. [2024-11-07 00:28:26,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2865 states, 2864 states have (on average 1.5534217877094971) internal successors, (4449), 2864 states have internal predecessors, (4449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:28:26,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2865 states to 2865 states and 4449 transitions. [2024-11-07 00:28:26,797 INFO L78 Accepts]: Start accepts. Automaton has 2865 states and 4449 transitions. Word has length 99 [2024-11-07 00:28:26,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:28:26,797 INFO L471 AbstractCegarLoop]: Abstraction has 2865 states and 4449 transitions. [2024-11-07 00:28:26,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:28:26,797 INFO L276 IsEmpty]: Start isEmpty. Operand 2865 states and 4449 transitions. [2024-11-07 00:28:26,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-07 00:28:26,800 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:28:26,800 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] [2024-11-07 00:28:26,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 00:28:26,800 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:28:26,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:28:26,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1043155442, now seen corresponding path program 1 times [2024-11-07 00:28:26,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:28:26,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106684252] [2024-11-07 00:28:26,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:28:26,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:28:26,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:28:27,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:28:27,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:28:27,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106684252] [2024-11-07 00:28:27,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106684252] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:28:27,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:28:27,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 00:28:27,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963651257] [2024-11-07 00:28:27,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:28:27,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:28:27,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:28:27,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:28:27,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:28:27,039 INFO L87 Difference]: Start difference. First operand 2865 states and 4449 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:28:27,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:28:27,410 INFO L93 Difference]: Finished difference Result 7872 states and 12314 transitions. [2024-11-07 00:28:27,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 00:28:27,412 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 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 99 [2024-11-07 00:28:27,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:28:27,433 INFO L225 Difference]: With dead ends: 7872 [2024-11-07 00:28:27,433 INFO L226 Difference]: Without dead ends: 5165 [2024-11-07 00:28:27,441 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:28:27,445 INFO L432 NwaCegarLoop]: 216 mSDtfsCounter, 1350 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1350 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-07 00:28:27,445 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1350 Valid, 361 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-07 00:28:27,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5165 states. [2024-11-07 00:28:27,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5165 to 5163. [2024-11-07 00:28:27,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5163 states, 5162 states have (on average 1.5561797752808988) internal successors, (8033), 5162 states have internal predecessors, (8033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:28:27,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5163 states to 5163 states and 8033 transitions. [2024-11-07 00:28:27,591 INFO L78 Accepts]: Start accepts. Automaton has 5163 states and 8033 transitions. Word has length 99 [2024-11-07 00:28:27,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:28:27,592 INFO L471 AbstractCegarLoop]: Abstraction has 5163 states and 8033 transitions. [2024-11-07 00:28:27,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:28:27,592 INFO L276 IsEmpty]: Start isEmpty. Operand 5163 states and 8033 transitions. [2024-11-07 00:28:27,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-07 00:28:27,600 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:28:27,600 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] [2024-11-07 00:28:27,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 00:28:27,601 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:28:27,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:28:27,604 INFO L85 PathProgramCache]: Analyzing trace with hash -1397069631, now seen corresponding path program 1 times [2024-11-07 00:28:27,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:28:27,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560930585] [2024-11-07 00:28:27,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:28:27,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:28:27,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:28:27,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:28:27,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:28:27,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560930585] [2024-11-07 00:28:27,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560930585] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:28:27,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:28:27,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 00:28:27,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051059108] [2024-11-07 00:28:27,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:28:27,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:28:27,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:28:27,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:28:27,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:28:27,805 INFO L87 Difference]: Start difference. First operand 5163 states and 8033 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:28:28,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:28:28,179 INFO L93 Difference]: Finished difference Result 14689 states and 22985 transitions. [2024-11-07 00:28:28,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 00:28:28,180 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 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 99 [2024-11-07 00:28:28,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:28:28,222 INFO L225 Difference]: With dead ends: 14689 [2024-11-07 00:28:28,223 INFO L226 Difference]: Without dead ends: 9725 [2024-11-07 00:28:28,234 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:28:28,235 INFO L432 NwaCegarLoop]: 218 mSDtfsCounter, 1336 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1336 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-07 00:28:28,235 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1336 Valid, 370 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-07 00:28:28,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9725 states. [2024-11-07 00:28:28,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9725 to 9723. [2024-11-07 00:28:28,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9723 states, 9722 states have (on average 1.5584241925529727) internal successors, (15151), 9722 states have internal predecessors, (15151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:28:28,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9723 states to 9723 states and 15151 transitions. [2024-11-07 00:28:28,607 INFO L78 Accepts]: Start accepts. Automaton has 9723 states and 15151 transitions. Word has length 99 [2024-11-07 00:28:28,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:28:28,607 INFO L471 AbstractCegarLoop]: Abstraction has 9723 states and 15151 transitions. [2024-11-07 00:28:28,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:28:28,608 INFO L276 IsEmpty]: Start isEmpty. Operand 9723 states and 15151 transitions. [2024-11-07 00:28:28,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-07 00:28:28,611 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:28:28,612 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] [2024-11-07 00:28:28,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 00:28:28,612 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:28:28,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:28:28,614 INFO L85 PathProgramCache]: Analyzing trace with hash 2146829076, now seen corresponding path program 1 times [2024-11-07 00:28:28,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:28:28,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118284120] [2024-11-07 00:28:28,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:28:28,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:28:28,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:28:28,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:28:28,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:28:28,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118284120] [2024-11-07 00:28:28,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118284120] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:28:28,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:28:28,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 00:28:28,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018018034] [2024-11-07 00:28:28,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:28:28,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:28:28,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:28:28,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:28:28,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:28:28,799 INFO L87 Difference]: Start difference. First operand 9723 states and 15151 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:28:29,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:28:29,230 INFO L93 Difference]: Finished difference Result 28649 states and 44743 transitions. [2024-11-07 00:28:29,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 00:28:29,230 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 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 99 [2024-11-07 00:28:29,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:28:29,315 INFO L225 Difference]: With dead ends: 28649 [2024-11-07 00:28:29,316 INFO L226 Difference]: Without dead ends: 19017 [2024-11-07 00:28:29,337 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:28:29,339 INFO L432 NwaCegarLoop]: 214 mSDtfsCounter, 1406 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1406 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-07 00:28:29,339 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1406 Valid, 355 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-07 00:28:29,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19017 states. [2024-11-07 00:28:29,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19017 to 19015. [2024-11-07 00:28:29,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19015 states, 19014 states have (on average 1.554380982433996) internal successors, (29555), 19014 states have internal predecessors, (29555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:28:29,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19015 states to 19015 states and 29555 transitions. [2024-11-07 00:28:29,972 INFO L78 Accepts]: Start accepts. Automaton has 19015 states and 29555 transitions. Word has length 99 [2024-11-07 00:28:29,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:28:29,972 INFO L471 AbstractCegarLoop]: Abstraction has 19015 states and 29555 transitions. [2024-11-07 00:28:29,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:28:29,973 INFO L276 IsEmpty]: Start isEmpty. Operand 19015 states and 29555 transitions. [2024-11-07 00:28:29,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-07 00:28:29,982 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:28:29,982 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] [2024-11-07 00:28:29,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 00:28:29,982 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:28:29,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:28:29,983 INFO L85 PathProgramCache]: Analyzing trace with hash -1517888763, now seen corresponding path program 1 times [2024-11-07 00:28:29,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:28:29,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913416048] [2024-11-07 00:28:29,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:28:29,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:28:30,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:28:30,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:28:30,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:28:30,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913416048] [2024-11-07 00:28:30,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913416048] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:28:30,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:28:30,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 00:28:30,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087377035] [2024-11-07 00:28:30,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:28:30,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:28:30,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:28:30,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:28:30,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:28:30,177 INFO L87 Difference]: Start difference. First operand 19015 states and 29555 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:28:30,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:28:30,861 INFO L93 Difference]: Finished difference Result 56572 states and 88040 transitions. [2024-11-07 00:28:30,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 00:28:30,862 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 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 99 [2024-11-07 00:28:30,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:28:30,966 INFO L225 Difference]: With dead ends: 56572 [2024-11-07 00:28:30,967 INFO L226 Difference]: Without dead ends: 37625 [2024-11-07 00:28:31,003 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:28:31,004 INFO L432 NwaCegarLoop]: 216 mSDtfsCounter, 1428 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1428 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-07 00:28:31,004 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1428 Valid, 355 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-07 00:28:31,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37625 states. [2024-11-07 00:28:31,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37625 to 37623. [2024-11-07 00:28:31,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37623 states, 37622 states have (on average 1.548030407740152) internal successors, (58240), 37622 states have internal predecessors, (58240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:28:31,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37623 states to 37623 states and 58240 transitions. [2024-11-07 00:28:31,967 INFO L78 Accepts]: Start accepts. Automaton has 37623 states and 58240 transitions. Word has length 99 [2024-11-07 00:28:31,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:28:31,968 INFO L471 AbstractCegarLoop]: Abstraction has 37623 states and 58240 transitions. [2024-11-07 00:28:31,968 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:28:31,969 INFO L276 IsEmpty]: Start isEmpty. Operand 37623 states and 58240 transitions. [2024-11-07 00:28:31,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-07 00:28:31,978 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:28:31,979 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] [2024-11-07 00:28:31,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 00:28:31,979 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:28:31,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:28:31,980 INFO L85 PathProgramCache]: Analyzing trace with hash -1740503754, now seen corresponding path program 1 times [2024-11-07 00:28:31,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:28:31,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41092992] [2024-11-07 00:28:31,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:28:31,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:28:32,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:28:32,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:28:32,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:28:32,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41092992] [2024-11-07 00:28:32,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41092992] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:28:32,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:28:32,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 00:28:32,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393604512] [2024-11-07 00:28:32,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:28:32,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:28:32,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:28:32,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:28:32,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:28:32,147 INFO L87 Difference]: Start difference. First operand 37623 states and 58240 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:28:32,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:28:32,961 INFO L93 Difference]: Finished difference Result 107195 states and 166076 transitions. [2024-11-07 00:28:32,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 00:28:32,962 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 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 99 [2024-11-07 00:28:32,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:28:33,244 INFO L225 Difference]: With dead ends: 107195 [2024-11-07 00:28:33,244 INFO L226 Difference]: Without dead ends: 69624 [2024-11-07 00:28:33,284 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:28:33,286 INFO L432 NwaCegarLoop]: 216 mSDtfsCounter, 1454 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1454 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-07 00:28:33,286 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1454 Valid, 353 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-07 00:28:33,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69624 states. [2024-11-07 00:28:34,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69624 to 69622. [2024-11-07 00:28:34,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69622 states, 69621 states have (on average 1.5395498484652619) internal successors, (107185), 69621 states have internal predecessors, (107185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:28:34,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69622 states to 69622 states and 107185 transitions. [2024-11-07 00:28:34,866 INFO L78 Accepts]: Start accepts. Automaton has 69622 states and 107185 transitions. Word has length 99 [2024-11-07 00:28:34,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:28:34,867 INFO L471 AbstractCegarLoop]: Abstraction has 69622 states and 107185 transitions. [2024-11-07 00:28:34,867 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:28:34,867 INFO L276 IsEmpty]: Start isEmpty. Operand 69622 states and 107185 transitions. [2024-11-07 00:28:34,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-07 00:28:34,879 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:28:34,880 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] [2024-11-07 00:28:34,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 00:28:34,880 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:28:34,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:28:34,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1377652457, now seen corresponding path program 1 times [2024-11-07 00:28:34,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:28:34,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471573445] [2024-11-07 00:28:34,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:28:34,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:28:34,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:28:35,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:28:35,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:28:35,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471573445] [2024-11-07 00:28:35,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471573445] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:28:35,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:28:35,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 00:28:35,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199023525] [2024-11-07 00:28:35,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:28:35,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:28:35,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:28:35,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:28:35,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:28:35,332 INFO L87 Difference]: Start difference. First operand 69622 states and 107185 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:28:35,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:28:35,579 INFO L93 Difference]: Finished difference Result 71032 states and 109298 transitions. [2024-11-07 00:28:35,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 00:28:35,580 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 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 100 [2024-11-07 00:28:35,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:28:35,718 INFO L225 Difference]: With dead ends: 71032 [2024-11-07 00:28:35,719 INFO L226 Difference]: Without dead ends: 71030 [2024-11-07 00:28:35,757 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:28:35,759 INFO L432 NwaCegarLoop]: 354 mSDtfsCounter, 0 mSDsluCounter, 1048 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1402 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 00:28:35,760 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1402 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:28:35,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71030 states. [2024-11-07 00:28:36,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71030 to 71030. [2024-11-07 00:28:37,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71030 states, 71029 states have (on average 1.5288544115783693) internal successors, (108593), 71029 states have internal predecessors, (108593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:28:37,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71030 states to 71030 states and 108593 transitions. [2024-11-07 00:28:37,470 INFO L78 Accepts]: Start accepts. Automaton has 71030 states and 108593 transitions. Word has length 100 [2024-11-07 00:28:37,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:28:37,471 INFO L471 AbstractCegarLoop]: Abstraction has 71030 states and 108593 transitions. [2024-11-07 00:28:37,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:28:37,471 INFO L276 IsEmpty]: Start isEmpty. Operand 71030 states and 108593 transitions. [2024-11-07 00:28:37,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-07 00:28:37,484 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:28:37,484 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] [2024-11-07 00:28:37,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 00:28:37,484 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:28:37,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:28:37,485 INFO L85 PathProgramCache]: Analyzing trace with hash 101785651, now seen corresponding path program 1 times [2024-11-07 00:28:37,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:28:37,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338569576] [2024-11-07 00:28:37,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:28:37,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:28:37,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:28:37,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:28:37,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:28:37,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338569576] [2024-11-07 00:28:37,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338569576] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:28:37,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:28:37,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 00:28:37,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781568568] [2024-11-07 00:28:37,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:28:37,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 00:28:37,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:28:37,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 00:28:37,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-07 00:28:37,986 INFO L87 Difference]: Start difference. First operand 71030 states and 108593 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:28:39,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:28:39,302 INFO L93 Difference]: Finished difference Result 128605 states and 195525 transitions. [2024-11-07 00:28:39,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 00:28:39,303 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 9 states have internal predecessors, (101), 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 101 [2024-11-07 00:28:39,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:28:39,515 INFO L225 Difference]: With dead ends: 128605 [2024-11-07 00:28:39,515 INFO L226 Difference]: Without dead ends: 94221 [2024-11-07 00:28:39,567 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-07 00:28:39,568 INFO L432 NwaCegarLoop]: 217 mSDtfsCounter, 1618 mSDsluCounter, 914 mSDsCounter, 0 mSdLazyCounter, 877 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1618 SdHoareTripleChecker+Valid, 1131 SdHoareTripleChecker+Invalid, 888 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 877 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-07 00:28:39,569 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1618 Valid, 1131 Invalid, 888 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 877 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-07 00:28:39,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94221 states. [2024-11-07 00:28:41,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94221 to 71655. [2024-11-07 00:28:41,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71655 states, 71654 states have (on average 1.5277863064169481) internal successors, (109472), 71654 states have internal predecessors, (109472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:28:41,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71655 states to 71655 states and 109472 transitions. [2024-11-07 00:28:41,291 INFO L78 Accepts]: Start accepts. Automaton has 71655 states and 109472 transitions. Word has length 101 [2024-11-07 00:28:41,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:28:41,291 INFO L471 AbstractCegarLoop]: Abstraction has 71655 states and 109472 transitions. [2024-11-07 00:28:41,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:28:41,292 INFO L276 IsEmpty]: Start isEmpty. Operand 71655 states and 109472 transitions. [2024-11-07 00:28:41,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-07 00:28:41,305 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:28:41,305 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] [2024-11-07 00:28:41,306 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-07 00:28:41,306 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:28:41,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:28:41,307 INFO L85 PathProgramCache]: Analyzing trace with hash 1744765011, now seen corresponding path program 1 times [2024-11-07 00:28:41,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:28:41,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781986643] [2024-11-07 00:28:41,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:28:41,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:28:41,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:28:41,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:28:41,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:28:41,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781986643] [2024-11-07 00:28:41,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781986643] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:28:41,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:28:41,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 00:28:41,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644518545] [2024-11-07 00:28:41,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:28:41,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 00:28:41,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:28:41,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 00:28:41,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-07 00:28:41,582 INFO L87 Difference]: Start difference. First operand 71655 states and 109472 transitions. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:28:42,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:28:42,480 INFO L93 Difference]: Finished difference Result 202635 states and 308962 transitions. [2024-11-07 00:28:42,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 00:28:42,481 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 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 101 [2024-11-07 00:28:42,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:28:42,758 INFO L225 Difference]: With dead ends: 202635 [2024-11-07 00:28:42,759 INFO L226 Difference]: Without dead ends: 133385 [2024-11-07 00:28:42,833 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-07 00:28:42,833 INFO L432 NwaCegarLoop]: 472 mSDtfsCounter, 248 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 1006 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:28:42,833 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 1006 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:28:42,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133385 states. [2024-11-07 00:28:44,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133385 to 133383. [2024-11-07 00:28:44,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133383 states, 133382 states have (on average 1.5169663072978363) internal successors, (202336), 133382 states have internal predecessors, (202336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:28:45,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133383 states to 133383 states and 202336 transitions. [2024-11-07 00:28:45,032 INFO L78 Accepts]: Start accepts. Automaton has 133383 states and 202336 transitions. Word has length 101 [2024-11-07 00:28:45,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:28:45,032 INFO L471 AbstractCegarLoop]: Abstraction has 133383 states and 202336 transitions. [2024-11-07 00:28:45,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:28:45,032 INFO L276 IsEmpty]: Start isEmpty. Operand 133383 states and 202336 transitions. [2024-11-07 00:28:45,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-07 00:28:45,043 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:28:45,043 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] [2024-11-07 00:28:45,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-07 00:28:45,043 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:28:45,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:28:45,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1461679126, now seen corresponding path program 1 times [2024-11-07 00:28:45,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:28:45,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680735858] [2024-11-07 00:28:45,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:28:45,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:28:45,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:28:45,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:28:45,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:28:45,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680735858] [2024-11-07 00:28:45,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680735858] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:28:45,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:28:45,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:28:45,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276577327] [2024-11-07 00:28:45,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:28:45,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:28:45,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:28:45,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:28:45,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:28:45,130 INFO L87 Difference]: Start difference. First operand 133383 states and 202336 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:28:46,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:28:46,374 INFO L93 Difference]: Finished difference Result 211293 states and 320468 transitions. [2024-11-07 00:28:46,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:28:46,376 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 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 102 [2024-11-07 00:28:46,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:28:46,676 INFO L225 Difference]: With dead ends: 211293 [2024-11-07 00:28:46,676 INFO L226 Difference]: Without dead ends: 157087 [2024-11-07 00:28:46,768 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:28:46,769 INFO L432 NwaCegarLoop]: 520 mSDtfsCounter, 215 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 852 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:28:46,770 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 852 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:28:46,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157087 states. [2024-11-07 00:28:48,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157087 to 155953. [2024-11-07 00:28:48,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155953 states, 155952 states have (on average 1.501179850210321) internal successors, (234112), 155952 states have internal predecessors, (234112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:28:49,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155953 states to 155953 states and 234112 transitions. [2024-11-07 00:28:49,158 INFO L78 Accepts]: Start accepts. Automaton has 155953 states and 234112 transitions. Word has length 102 [2024-11-07 00:28:49,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:28:49,158 INFO L471 AbstractCegarLoop]: Abstraction has 155953 states and 234112 transitions. [2024-11-07 00:28:49,158 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:28:49,158 INFO L276 IsEmpty]: Start isEmpty. Operand 155953 states and 234112 transitions. [2024-11-07 00:28:49,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-07 00:28:49,172 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:28:49,172 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] [2024-11-07 00:28:49,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-07 00:28:49,173 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:28:49,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:28:49,173 INFO L85 PathProgramCache]: Analyzing trace with hash -1456323146, now seen corresponding path program 1 times [2024-11-07 00:28:49,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:28:49,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433390168] [2024-11-07 00:28:49,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:28:49,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:28:49,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:28:49,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:28:49,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:28:49,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433390168] [2024-11-07 00:28:49,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433390168] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:28:49,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:28:49,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:28:49,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158251254] [2024-11-07 00:28:49,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:28:49,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:28:49,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:28:49,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:28:49,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:28:49,292 INFO L87 Difference]: Start difference. First operand 155953 states and 234112 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:28:51,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:28:51,457 INFO L93 Difference]: Finished difference Result 363018 states and 545059 transitions. [2024-11-07 00:28:51,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:28:51,462 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 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 102 [2024-11-07 00:28:51,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:28:51,905 INFO L225 Difference]: With dead ends: 363018 [2024-11-07 00:28:51,905 INFO L226 Difference]: Without dead ends: 218682 [2024-11-07 00:28:52,061 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:28:52,062 INFO L432 NwaCegarLoop]: 352 mSDtfsCounter, 258 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 683 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:28:52,062 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 683 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:28:52,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218682 states. [2024-11-07 00:28:54,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218682 to 218296. [2024-11-07 00:28:55,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218296 states, 218295 states have (on average 1.490350214159738) internal successors, (325336), 218295 states have internal predecessors, (325336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:28:55,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218296 states to 218296 states and 325336 transitions. [2024-11-07 00:28:55,674 INFO L78 Accepts]: Start accepts. Automaton has 218296 states and 325336 transitions. Word has length 102 [2024-11-07 00:28:55,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:28:55,674 INFO L471 AbstractCegarLoop]: Abstraction has 218296 states and 325336 transitions. [2024-11-07 00:28:55,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:28:55,675 INFO L276 IsEmpty]: Start isEmpty. Operand 218296 states and 325336 transitions. [2024-11-07 00:28:55,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-07 00:28:55,698 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:28:55,698 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] [2024-11-07 00:28:55,698 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-07 00:28:55,698 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:28:55,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:28:55,699 INFO L85 PathProgramCache]: Analyzing trace with hash -731878665, now seen corresponding path program 1 times [2024-11-07 00:28:55,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:28:55,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129367890] [2024-11-07 00:28:55,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:28:55,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:28:55,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:28:55,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:28:55,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:28:55,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129367890] [2024-11-07 00:28:55,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129367890] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:28:55,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:28:55,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:28:55,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436587732] [2024-11-07 00:28:55,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:28:55,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:28:55,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:28:55,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:28:55,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:28:55,848 INFO L87 Difference]: Start difference. First operand 218296 states and 325336 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:28:58,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:28:58,110 INFO L93 Difference]: Finished difference Result 500270 states and 744290 transitions. [2024-11-07 00:28:58,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:28:58,111 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 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 102 [2024-11-07 00:28:58,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:28:58,687 INFO L225 Difference]: With dead ends: 500270 [2024-11-07 00:28:58,688 INFO L226 Difference]: Without dead ends: 294338 [2024-11-07 00:28:58,857 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:28:58,858 INFO L432 NwaCegarLoop]: 351 mSDtfsCounter, 246 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 681 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:28:58,858 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 681 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:28:59,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294338 states. [2024-11-07 00:29:02,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294338 to 292895. [2024-11-07 00:29:02,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292895 states, 292894 states have (on average 1.4717064876713077) internal successors, (431054), 292894 states have internal predecessors, (431054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:29:04,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292895 states to 292895 states and 431054 transitions. [2024-11-07 00:29:04,034 INFO L78 Accepts]: Start accepts. Automaton has 292895 states and 431054 transitions. Word has length 102 [2024-11-07 00:29:04,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:29:04,035 INFO L471 AbstractCegarLoop]: Abstraction has 292895 states and 431054 transitions. [2024-11-07 00:29:04,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:29:04,035 INFO L276 IsEmpty]: Start isEmpty. Operand 292895 states and 431054 transitions. [2024-11-07 00:29:04,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-07 00:29:04,056 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:29:04,056 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] [2024-11-07 00:29:04,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-07 00:29:04,056 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:29:04,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:29:04,057 INFO L85 PathProgramCache]: Analyzing trace with hash 854431734, now seen corresponding path program 1 times [2024-11-07 00:29:04,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:29:04,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986392406] [2024-11-07 00:29:04,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:29:04,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:29:04,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:29:04,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:29:04,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:29:04,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986392406] [2024-11-07 00:29:04,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986392406] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:29:04,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:29:04,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 00:29:04,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921901447] [2024-11-07 00:29:04,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:29:04,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 00:29:04,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:29:04,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 00:29:04,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-07 00:29:04,258 INFO L87 Difference]: Start difference. First operand 292895 states and 431054 transitions. Second operand has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:29:06,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:29:06,931 INFO L93 Difference]: Finished difference Result 775158 states and 1145806 transitions. [2024-11-07 00:29:06,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 00:29:06,932 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 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 102 [2024-11-07 00:29:06,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:29:08,391 INFO L225 Difference]: With dead ends: 775158 [2024-11-07 00:29:08,392 INFO L226 Difference]: Without dead ends: 722260 [2024-11-07 00:29:08,713 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-07 00:29:08,713 INFO L432 NwaCegarLoop]: 531 mSDtfsCounter, 3522 mSDsluCounter, 1529 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3522 SdHoareTripleChecker+Valid, 2060 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:29:08,714 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3522 Valid, 2060 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:29:09,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 722260 states. [2024-11-07 00:29:15,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 722260 to 345279. [2024-11-07 00:29:15,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345279 states, 345278 states have (on average 1.4713187634312062) internal successors, (508014), 345278 states have internal predecessors, (508014), 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)