./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.2.ufo.UNBOUNDED.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.6.2.ufo.UNBOUNDED.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', 'f299e5c87ef8b927f907740b52cd3b6a05ddc6197a3b61da31c7c3837813d6c6'] 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.6.2.ufo.UNBOUNDED.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 f299e5c87ef8b927f907740b52cd3b6a05ddc6197a3b61da31c7c3837813d6c6 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 00:28:09,626 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 00:28:09,710 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-07 00:28:09,716 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 00:28:09,717 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 00:28:09,742 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 00:28:09,744 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 00:28:09,744 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 00:28:09,745 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 00:28:09,745 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 00:28:09,745 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 00:28:09,745 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 00:28:09,746 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 00:28:09,747 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 00:28:09,747 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 00:28:09,747 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 00:28:09,747 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 00:28:09,747 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 00:28:09,748 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 00:28:09,749 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 00:28:09,749 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 00:28:09,749 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 00:28:09,749 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 00:28:09,749 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 00:28:09,749 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 00:28:09,749 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 00:28:09,749 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 00:28:09,749 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 00:28:09,749 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 00:28:09,749 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 00:28:09,749 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 00:28:09,749 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 00:28:09,750 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 00:28:09,750 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 00:28:09,750 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 00:28:09,750 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 00:28:09,750 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 00:28:09,750 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 00:28:09,750 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 00:28:09,750 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 00:28:09,750 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 00:28:09,750 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 00:28:09,750 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 -> f299e5c87ef8b927f907740b52cd3b6a05ddc6197a3b61da31c7c3837813d6c6 [2024-11-07 00:28:10,072 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 00:28:10,083 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 00:28:10,086 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 00:28:10,089 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 00:28:10,089 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 00:28:10,090 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-07 00:28:11,445 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 00:28:11,694 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 00:28:11,695 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-07 00:28:11,707 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5c3cc2dc8/7301a67d1e52478fa9bbfd61149e7e8c/FLAGc8240e0fc [2024-11-07 00:28:11,726 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5c3cc2dc8/7301a67d1e52478fa9bbfd61149e7e8c [2024-11-07 00:28:11,729 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 00:28:11,730 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 00:28:11,732 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 00:28:11,732 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 00:28:11,735 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 00:28:11,736 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:28:11" (1/1) ... [2024-11-07 00:28:11,736 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@787eae19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:28:11, skipping insertion in model container [2024-11-07 00:28:11,736 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:28:11" (1/1) ... [2024-11-07 00:28:11,772 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 00:28:12,009 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.6.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[9868,9881] [2024-11-07 00:28:12,074 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 00:28:12,092 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 00:28:12,172 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.6.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[9868,9881] [2024-11-07 00:28:12,222 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 00:28:12,239 INFO L204 MainTranslator]: Completed translation [2024-11-07 00:28:12,239 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:28:12 WrapperNode [2024-11-07 00:28:12,239 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 00:28:12,240 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 00:28:12,241 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 00:28:12,241 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 00:28:12,246 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:28:12" (1/1) ... [2024-11-07 00:28:12,260 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:28:12" (1/1) ... [2024-11-07 00:28:12,307 INFO L138 Inliner]: procedures = 26, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1006 [2024-11-07 00:28:12,308 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 00:28:12,309 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 00:28:12,309 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 00:28:12,309 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 00:28:12,323 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:28:12" (1/1) ... [2024-11-07 00:28:12,323 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:28:12" (1/1) ... [2024-11-07 00:28:12,328 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:28:12" (1/1) ... [2024-11-07 00:28:12,353 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 00:28:12,353 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:28:12" (1/1) ... [2024-11-07 00:28:12,357 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:28:12" (1/1) ... [2024-11-07 00:28:12,380 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:28:12" (1/1) ... [2024-11-07 00:28:12,393 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:28:12" (1/1) ... [2024-11-07 00:28:12,403 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:28:12" (1/1) ... [2024-11-07 00:28:12,409 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:28:12" (1/1) ... [2024-11-07 00:28:12,418 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 00:28:12,419 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 00:28:12,419 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 00:28:12,419 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 00:28:12,420 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:28:12" (1/1) ... [2024-11-07 00:28:12,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 00:28:12,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 00:28:12,473 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 00:28:12,478 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 00:28:12,503 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 00:28:12,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 00:28:12,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 00:28:12,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 00:28:12,672 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 00:28:12,673 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 00:28:13,792 INFO L? ?]: Removed 110 outVars from TransFormulas that were not future-live. [2024-11-07 00:28:13,793 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 00:28:13,814 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 00:28:13,814 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-07 00:28:13,814 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:28:13 BoogieIcfgContainer [2024-11-07 00:28:13,815 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 00:28:13,817 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 00:28:13,817 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 00:28:13,824 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 00:28:13,825 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:28:11" (1/3) ... [2024-11-07 00:28:13,825 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@163530b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:28:13, skipping insertion in model container [2024-11-07 00:28:13,826 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:28:12" (2/3) ... [2024-11-07 00:28:13,826 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@163530b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:28:13, skipping insertion in model container [2024-11-07 00:28:13,826 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:28:13" (3/3) ... [2024-11-07 00:28:13,827 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.6.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-07 00:28:13,842 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 00:28:13,843 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-07 00:28:13,909 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 00:28:13,921 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;@7654d234, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 00:28:13,921 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-07 00:28:13,936 INFO L276 IsEmpty]: Start isEmpty. Operand has 249 states, 247 states have (on average 1.7246963562753037) internal successors, (426), 248 states have internal predecessors, (426), 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 00:28:13,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-07 00:28:13,946 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:28:13,947 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] [2024-11-07 00:28:13,947 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:28:13,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:28:13,952 INFO L85 PathProgramCache]: Analyzing trace with hash -678392844, now seen corresponding path program 1 times [2024-11-07 00:28:13,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:28:13,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831320291] [2024-11-07 00:28:13,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:28:13,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:28:14,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:28:14,792 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 00:28:14,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:28:14,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831320291] [2024-11-07 00:28:14,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831320291] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:28:14,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:28:14,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 00:28:14,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801904613] [2024-11-07 00:28:14,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:28:14,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 00:28:14,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:28:14,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 00:28:14,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-07 00:28:14,828 INFO L87 Difference]: Start difference. First operand has 249 states, 247 states have (on average 1.7246963562753037) internal successors, (426), 248 states have internal predecessors, (426), 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 11.875) internal successors, (95), 8 states have internal predecessors, (95), 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 00:28:15,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:28:15,232 INFO L93 Difference]: Finished difference Result 1119 states and 1815 transitions. [2024-11-07 00:28:15,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 00:28:15,234 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 8 states have internal predecessors, (95), 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 95 [2024-11-07 00:28:15,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:28:15,254 INFO L225 Difference]: With dead ends: 1119 [2024-11-07 00:28:15,255 INFO L226 Difference]: Without dead ends: 983 [2024-11-07 00:28:15,259 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 00:28:15,263 INFO L432 NwaCegarLoop]: 433 mSDtfsCounter, 4169 mSDsluCounter, 3265 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4169 SdHoareTripleChecker+Valid, 3698 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 00:28:15,264 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4169 Valid, 3698 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 00:28:15,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 983 states. [2024-11-07 00:28:15,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 983 to 381. [2024-11-07 00:28:15,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 380 states have (on average 1.5052631578947369) internal successors, (572), 380 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:28:15,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 572 transitions. [2024-11-07 00:28:15,347 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 572 transitions. Word has length 95 [2024-11-07 00:28:15,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:28:15,348 INFO L471 AbstractCegarLoop]: Abstraction has 381 states and 572 transitions. [2024-11-07 00:28:15,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 8 states have internal predecessors, (95), 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 00:28:15,349 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 572 transitions. [2024-11-07 00:28:15,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-07 00:28:15,352 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:28:15,353 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] [2024-11-07 00:28:15,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 00:28:15,353 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:28:15,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:28:15,354 INFO L85 PathProgramCache]: Analyzing trace with hash 118593259, now seen corresponding path program 1 times [2024-11-07 00:28:15,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:28:15,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247220945] [2024-11-07 00:28:15,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:28:15,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:28:15,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:28:15,936 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 00:28:15,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:28:15,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247220945] [2024-11-07 00:28:15,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247220945] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:28:15,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:28:15,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 00:28:15,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290925018] [2024-11-07 00:28:15,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:28:15,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 00:28:15,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:28:15,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 00:28:15,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2024-11-07 00:28:15,940 INFO L87 Difference]: Start difference. First operand 381 states and 572 transitions. Second operand has 8 states, 8 states have (on average 12.0) internal successors, (96), 8 states have internal predecessors, (96), 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 00:28:16,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:28:16,338 INFO L93 Difference]: Finished difference Result 1908 states and 2968 transitions. [2024-11-07 00:28:16,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 00:28:16,339 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.0) internal successors, (96), 8 states have internal predecessors, (96), 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 96 [2024-11-07 00:28:16,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:28:16,346 INFO L225 Difference]: With dead ends: 1908 [2024-11-07 00:28:16,346 INFO L226 Difference]: Without dead ends: 1622 [2024-11-07 00:28:16,349 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 00:28:16,350 INFO L432 NwaCegarLoop]: 728 mSDtfsCounter, 1735 mSDsluCounter, 1246 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1735 SdHoareTripleChecker+Valid, 1974 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-07 00:28:16,350 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1735 Valid, 1974 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-07 00:28:16,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1622 states. [2024-11-07 00:28:16,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1622 to 1612. [2024-11-07 00:28:16,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1612 states, 1611 states have (on average 1.5524518932340161) internal successors, (2501), 1611 states have internal predecessors, (2501), 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 00:28:16,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1612 states to 1612 states and 2501 transitions. [2024-11-07 00:28:16,433 INFO L78 Accepts]: Start accepts. Automaton has 1612 states and 2501 transitions. Word has length 96 [2024-11-07 00:28:16,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:28:16,434 INFO L471 AbstractCegarLoop]: Abstraction has 1612 states and 2501 transitions. [2024-11-07 00:28:16,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.0) internal successors, (96), 8 states have internal predecessors, (96), 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 00:28:16,435 INFO L276 IsEmpty]: Start isEmpty. Operand 1612 states and 2501 transitions. [2024-11-07 00:28:16,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-07 00:28:16,439 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:28:16,440 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 00:28:16,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 00:28:16,440 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:28:16,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:28:16,441 INFO L85 PathProgramCache]: Analyzing trace with hash 372250457, now seen corresponding path program 1 times [2024-11-07 00:28:16,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:28:16,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138174397] [2024-11-07 00:28:16,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:28:16,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:28:16,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:28:16,686 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 00:28:16,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:28:16,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138174397] [2024-11-07 00:28:16,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138174397] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:28:16,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:28:16,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 00:28:16,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704225610] [2024-11-07 00:28:16,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:28:16,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:28:16,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:28:16,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:28:16,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:28:16,691 INFO L87 Difference]: Start difference. First operand 1612 states and 2501 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 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 00:28:17,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:28:17,077 INFO L93 Difference]: Finished difference Result 4340 states and 6808 transitions. [2024-11-07 00:28:17,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 00:28:17,077 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 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 00:28:17,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:28:17,093 INFO L225 Difference]: With dead ends: 4340 [2024-11-07 00:28:17,093 INFO L226 Difference]: Without dead ends: 2814 [2024-11-07 00:28:17,097 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 00:28:17,099 INFO L432 NwaCegarLoop]: 208 mSDtfsCounter, 1370 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1370 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-07 00:28:17,100 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1370 Valid, 346 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-07 00:28:17,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2814 states. [2024-11-07 00:28:17,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2814 to 2812. [2024-11-07 00:28:17,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2812 states, 2811 states have (on average 1.5613660618996799) internal successors, (4389), 2811 states have internal predecessors, (4389), 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 00:28:17,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2812 states to 2812 states and 4389 transitions. [2024-11-07 00:28:17,205 INFO L78 Accepts]: Start accepts. Automaton has 2812 states and 4389 transitions. Word has length 97 [2024-11-07 00:28:17,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:28:17,206 INFO L471 AbstractCegarLoop]: Abstraction has 2812 states and 4389 transitions. [2024-11-07 00:28:17,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 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 00:28:17,208 INFO L276 IsEmpty]: Start isEmpty. Operand 2812 states and 4389 transitions. [2024-11-07 00:28:17,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-07 00:28:17,216 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:28:17,216 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 00:28:17,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 00:28:17,217 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:28:17,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:28:17,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1864730935, now seen corresponding path program 1 times [2024-11-07 00:28:17,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:28:17,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246703117] [2024-11-07 00:28:17,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:28:17,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:28:17,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:28:17,422 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 00:28:17,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:28:17,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246703117] [2024-11-07 00:28:17,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246703117] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:28:17,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:28:17,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 00:28:17,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969029139] [2024-11-07 00:28:17,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:28:17,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:28:17,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:28:17,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:28:17,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:28:17,425 INFO L87 Difference]: Start difference. First operand 2812 states and 4389 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 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 00:28:17,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:28:17,771 INFO L93 Difference]: Finished difference Result 7671 states and 12062 transitions. [2024-11-07 00:28:17,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 00:28:17,772 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 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 00:28:17,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:28:17,793 INFO L225 Difference]: With dead ends: 7671 [2024-11-07 00:28:17,793 INFO L226 Difference]: Without dead ends: 5012 [2024-11-07 00:28:17,799 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 00:28:17,800 INFO L432 NwaCegarLoop]: 208 mSDtfsCounter, 1300 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1300 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-07 00:28:17,800 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1300 Valid, 350 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-07 00:28:17,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5012 states. [2024-11-07 00:28:17,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5012 to 5010. [2024-11-07 00:28:17,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5010 states, 5009 states have (on average 1.5641844679576762) internal successors, (7835), 5009 states have internal predecessors, (7835), 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 00:28:17,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5010 states to 5010 states and 7835 transitions. [2024-11-07 00:28:17,928 INFO L78 Accepts]: Start accepts. Automaton has 5010 states and 7835 transitions. Word has length 97 [2024-11-07 00:28:17,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:28:17,929 INFO L471 AbstractCegarLoop]: Abstraction has 5010 states and 7835 transitions. [2024-11-07 00:28:17,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 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 00:28:17,930 INFO L276 IsEmpty]: Start isEmpty. Operand 5010 states and 7835 transitions. [2024-11-07 00:28:17,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-07 00:28:17,938 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:28:17,938 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 00:28:17,938 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 00:28:17,938 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:28:17,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:28:17,939 INFO L85 PathProgramCache]: Analyzing trace with hash -196878970, now seen corresponding path program 1 times [2024-11-07 00:28:17,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:28:17,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965653225] [2024-11-07 00:28:17,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:28:17,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:28:17,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:28:18,160 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 00:28:18,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:28:18,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965653225] [2024-11-07 00:28:18,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965653225] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:28:18,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:28:18,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 00:28:18,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354832013] [2024-11-07 00:28:18,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:28:18,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:28:18,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:28:18,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:28:18,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:28:18,164 INFO L87 Difference]: Start difference. First operand 5010 states and 7835 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 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 00:28:18,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:28:18,513 INFO L93 Difference]: Finished difference Result 14188 states and 22319 transitions. [2024-11-07 00:28:18,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 00:28:18,515 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 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 00:28:18,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:28:18,555 INFO L225 Difference]: With dead ends: 14188 [2024-11-07 00:28:18,555 INFO L226 Difference]: Without dead ends: 9372 [2024-11-07 00:28:18,567 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 00:28:18,568 INFO L432 NwaCegarLoop]: 212 mSDtfsCounter, 1282 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1282 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-07 00:28:18,570 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1282 Valid, 361 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-07 00:28:18,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9372 states. [2024-11-07 00:28:18,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9372 to 9370. [2024-11-07 00:28:18,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9370 states, 9369 states have (on average 1.5665492581919096) internal successors, (14677), 9369 states have internal predecessors, (14677), 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 00:28:18,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9370 states to 9370 states and 14677 transitions. [2024-11-07 00:28:18,824 INFO L78 Accepts]: Start accepts. Automaton has 9370 states and 14677 transitions. Word has length 97 [2024-11-07 00:28:18,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:28:18,825 INFO L471 AbstractCegarLoop]: Abstraction has 9370 states and 14677 transitions. [2024-11-07 00:28:18,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 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 00:28:18,825 INFO L276 IsEmpty]: Start isEmpty. Operand 9370 states and 14677 transitions. [2024-11-07 00:28:18,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-07 00:28:18,830 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:28:18,830 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 00:28:18,830 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 00:28:18,830 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:28:18,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:28:18,831 INFO L85 PathProgramCache]: Analyzing trace with hash -133707992, now seen corresponding path program 1 times [2024-11-07 00:28:18,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:28:18,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285891397] [2024-11-07 00:28:18,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:28:18,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:28:18,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:28:19,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:28:19,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:28:19,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285891397] [2024-11-07 00:28:19,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285891397] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:28:19,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:28:19,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 00:28:19,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496750313] [2024-11-07 00:28:19,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:28:19,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:28:19,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:28:19,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:28:19,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:28:19,007 INFO L87 Difference]: Start difference. First operand 9370 states and 14677 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 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 00:28:19,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:28:19,435 INFO L93 Difference]: Finished difference Result 27466 states and 43127 transitions. [2024-11-07 00:28:19,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 00:28:19,436 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 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 00:28:19,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:28:19,518 INFO L225 Difference]: With dead ends: 27466 [2024-11-07 00:28:19,519 INFO L226 Difference]: Without dead ends: 18212 [2024-11-07 00:28:19,541 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 00:28:19,542 INFO L432 NwaCegarLoop]: 208 mSDtfsCounter, 1320 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1320 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-07 00:28:19,543 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1320 Valid, 348 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-07 00:28:19,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18212 states. [2024-11-07 00:28:19,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18212 to 18210. [2024-11-07 00:28:20,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18210 states, 18209 states have (on average 1.5629633697622054) internal successors, (28460), 18209 states have internal predecessors, (28460), 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 00:28:20,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18210 states to 18210 states and 28460 transitions. [2024-11-07 00:28:20,073 INFO L78 Accepts]: Start accepts. Automaton has 18210 states and 28460 transitions. Word has length 97 [2024-11-07 00:28:20,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:28:20,074 INFO L471 AbstractCegarLoop]: Abstraction has 18210 states and 28460 transitions. [2024-11-07 00:28:20,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 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 00:28:20,074 INFO L276 IsEmpty]: Start isEmpty. Operand 18210 states and 28460 transitions. [2024-11-07 00:28:20,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-07 00:28:20,080 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:28:20,080 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 00:28:20,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 00:28:20,081 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:28:20,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:28:20,081 INFO L85 PathProgramCache]: Analyzing trace with hash 349436362, now seen corresponding path program 1 times [2024-11-07 00:28:20,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:28:20,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094516205] [2024-11-07 00:28:20,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:28:20,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:28:20,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:28:20,237 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 00:28:20,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:28:20,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094516205] [2024-11-07 00:28:20,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094516205] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:28:20,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:28:20,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 00:28:20,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130549856] [2024-11-07 00:28:20,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:28:20,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:28:20,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:28:20,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:28:20,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:28:20,239 INFO L87 Difference]: Start difference. First operand 18210 states and 28460 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 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 00:28:20,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:28:20,779 INFO L93 Difference]: Finished difference Result 54167 states and 84769 transitions. [2024-11-07 00:28:20,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 00:28:20,779 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 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 00:28:20,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:28:20,873 INFO L225 Difference]: With dead ends: 54167 [2024-11-07 00:28:20,874 INFO L226 Difference]: Without dead ends: 36020 [2024-11-07 00:28:20,906 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 00:28:20,907 INFO L432 NwaCegarLoop]: 210 mSDtfsCounter, 1374 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1374 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-07 00:28:20,908 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1374 Valid, 346 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-07 00:28:20,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36020 states. [2024-11-07 00:28:21,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36020 to 36018. [2024-11-07 00:28:21,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36018 states, 36017 states have (on average 1.556403920370936) internal successors, (56057), 36017 states have internal predecessors, (56057), 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 00:28:21,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36018 states to 36018 states and 56057 transitions. [2024-11-07 00:28:21,888 INFO L78 Accepts]: Start accepts. Automaton has 36018 states and 56057 transitions. Word has length 97 [2024-11-07 00:28:21,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:28:21,888 INFO L471 AbstractCegarLoop]: Abstraction has 36018 states and 56057 transitions. [2024-11-07 00:28:21,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 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 00:28:21,889 INFO L276 IsEmpty]: Start isEmpty. Operand 36018 states and 56057 transitions. [2024-11-07 00:28:21,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-07 00:28:21,899 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:28:21,899 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 00:28:21,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 00:28:21,900 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:28:21,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:28:21,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1386186639, now seen corresponding path program 1 times [2024-11-07 00:28:21,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:28:21,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042901207] [2024-11-07 00:28:21,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:28:21,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:28:21,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:28:22,078 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 00:28:22,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:28:22,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042901207] [2024-11-07 00:28:22,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042901207] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:28:22,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:28:22,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 00:28:22,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685458669] [2024-11-07 00:28:22,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:28:22,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:28:22,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:28:22,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:28:22,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:28:22,081 INFO L87 Difference]: Start difference. First operand 36018 states and 56057 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 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 00:28:22,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:28:22,741 INFO L93 Difference]: Finished difference Result 102358 states and 159437 transitions. [2024-11-07 00:28:22,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 00:28:22,742 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 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 00:28:22,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:28:23,076 INFO L225 Difference]: With dead ends: 102358 [2024-11-07 00:28:23,076 INFO L226 Difference]: Without dead ends: 66419 [2024-11-07 00:28:23,114 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 00:28:23,115 INFO L432 NwaCegarLoop]: 213 mSDtfsCounter, 1407 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1407 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-07 00:28:23,116 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1407 Valid, 349 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-07 00:28:23,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66419 states. [2024-11-07 00:28:24,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66419 to 66417. [2024-11-07 00:28:24,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66417 states, 66416 states have (on average 1.5520808238978558) internal successors, (103083), 66416 states have internal predecessors, (103083), 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 00:28:24,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66417 states to 66417 states and 103083 transitions. [2024-11-07 00:28:24,851 INFO L78 Accepts]: Start accepts. Automaton has 66417 states and 103083 transitions. Word has length 98 [2024-11-07 00:28:24,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:28:24,851 INFO L471 AbstractCegarLoop]: Abstraction has 66417 states and 103083 transitions. [2024-11-07 00:28:24,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 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 00:28:24,851 INFO L276 IsEmpty]: Start isEmpty. Operand 66417 states and 103083 transitions. [2024-11-07 00:28:24,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-07 00:28:24,865 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:28:24,865 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 00:28:24,865 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 00:28:24,865 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:28:24,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:28:24,866 INFO L85 PathProgramCache]: Analyzing trace with hash -508006273, now seen corresponding path program 1 times [2024-11-07 00:28:24,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:28:24,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033045747] [2024-11-07 00:28:24,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:28:24,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:28:24,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:28:25,398 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 00:28:25,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:28:25,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033045747] [2024-11-07 00:28:25,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033045747] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:28:25,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:28:25,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 00:28:25,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482819812] [2024-11-07 00:28:25,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:28:25,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:28:25,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:28:25,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:28:25,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:28:25,400 INFO L87 Difference]: Start difference. First operand 66417 states and 103083 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 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 00:28:25,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:28:25,624 INFO L93 Difference]: Finished difference Result 67827 states and 105196 transitions. [2024-11-07 00:28:25,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 00:28:25,626 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 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 00:28:25,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:28:25,756 INFO L225 Difference]: With dead ends: 67827 [2024-11-07 00:28:25,757 INFO L226 Difference]: Without dead ends: 67825 [2024-11-07 00:28:25,794 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 00:28:25,796 INFO L432 NwaCegarLoop]: 341 mSDtfsCounter, 0 mSDsluCounter, 1013 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1354 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:28:25,796 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1354 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:28:25,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67825 states. [2024-11-07 00:28:26,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67825 to 67825. [2024-11-07 00:28:26,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67825 states, 67824 states have (on average 1.5406198395848076) internal successors, (104491), 67824 states have internal predecessors, (104491), 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 00:28:26,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67825 states to 67825 states and 104491 transitions. [2024-11-07 00:28:26,817 INFO L78 Accepts]: Start accepts. Automaton has 67825 states and 104491 transitions. Word has length 98 [2024-11-07 00:28:26,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:28:26,817 INFO L471 AbstractCegarLoop]: Abstraction has 67825 states and 104491 transitions. [2024-11-07 00:28:26,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 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 00:28:26,818 INFO L276 IsEmpty]: Start isEmpty. Operand 67825 states and 104491 transitions. [2024-11-07 00:28:26,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-07 00:28:26,832 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:28:26,833 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 00:28:26,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 00:28:26,833 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:28:26,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:28:26,835 INFO L85 PathProgramCache]: Analyzing trace with hash 1758747548, now seen corresponding path program 1 times [2024-11-07 00:28:26,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:28:26,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921764302] [2024-11-07 00:28:26,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:28:26,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:28:26,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:28:27,572 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 00:28:27,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:28:27,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921764302] [2024-11-07 00:28:27,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921764302] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:28:27,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:28:27,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 00:28:27,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939058184] [2024-11-07 00:28:27,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:28:27,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 00:28:27,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:28:27,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 00:28:27,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-07 00:28:27,575 INFO L87 Difference]: Start difference. First operand 67825 states and 104491 transitions. Second operand has 10 states, 10 states have (on average 9.9) internal successors, (99), 9 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 00:28:28,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:28:28,874 INFO L93 Difference]: Finished difference Result 140864 states and 215731 transitions. [2024-11-07 00:28:28,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 00:28:28,875 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.9) internal successors, (99), 9 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 00:28:28,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:28:29,072 INFO L225 Difference]: With dead ends: 140864 [2024-11-07 00:28:29,072 INFO L226 Difference]: Without dead ends: 96017 [2024-11-07 00:28:29,137 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 00:28:29,138 INFO L432 NwaCegarLoop]: 218 mSDtfsCounter, 2146 mSDsluCounter, 906 mSDsCounter, 0 mSdLazyCounter, 862 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2146 SdHoareTripleChecker+Valid, 1124 SdHoareTripleChecker+Invalid, 874 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 862 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-07 00:28:29,138 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2146 Valid, 1124 Invalid, 874 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 862 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-07 00:28:29,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96017 states. [2024-11-07 00:28:30,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96017 to 68250. [2024-11-07 00:28:30,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68250 states, 68249 states have (on average 1.539568345323741) internal successors, (105074), 68249 states have internal predecessors, (105074), 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 00:28:30,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68250 states to 68250 states and 105074 transitions. [2024-11-07 00:28:30,487 INFO L78 Accepts]: Start accepts. Automaton has 68250 states and 105074 transitions. Word has length 99 [2024-11-07 00:28:30,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:28:30,487 INFO L471 AbstractCegarLoop]: Abstraction has 68250 states and 105074 transitions. [2024-11-07 00:28:30,487 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.9) internal successors, (99), 9 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 00:28:30,487 INFO L276 IsEmpty]: Start isEmpty. Operand 68250 states and 105074 transitions. [2024-11-07 00:28:30,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-07 00:28:30,499 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:28:30,499 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 00:28:30,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-07 00:28:30,500 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:28:30,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:28:30,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1890386908, now seen corresponding path program 1 times [2024-11-07 00:28:30,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:28:30,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41830569] [2024-11-07 00:28:30,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:28:30,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:28:30,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:28:31,400 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 00:28:31,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:28:31,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41830569] [2024-11-07 00:28:31,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41830569] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:28:31,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:28:31,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 00:28:31,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668486583] [2024-11-07 00:28:31,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:28:31,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 00:28:31,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:28:31,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 00:28:31,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-07 00:28:31,405 INFO L87 Difference]: Start difference. First operand 68250 states and 105074 transitions. Second operand has 10 states, 10 states have (on average 9.9) internal successors, (99), 9 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 00:28:32,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:28:32,898 INFO L93 Difference]: Finished difference Result 125543 states and 191838 transitions. [2024-11-07 00:28:32,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 00:28:32,898 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.9) internal successors, (99), 9 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 00:28:32,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:28:33,109 INFO L225 Difference]: With dead ends: 125543 [2024-11-07 00:28:33,109 INFO L226 Difference]: Without dead ends: 105381 [2024-11-07 00:28:33,149 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2024-11-07 00:28:33,150 INFO L432 NwaCegarLoop]: 235 mSDtfsCounter, 1729 mSDsluCounter, 1184 mSDsCounter, 0 mSdLazyCounter, 1071 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1729 SdHoareTripleChecker+Valid, 1419 SdHoareTripleChecker+Invalid, 1082 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1071 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-07 00:28:33,151 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1729 Valid, 1419 Invalid, 1082 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1071 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-07 00:28:33,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105381 states. [2024-11-07 00:28:34,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105381 to 69219. [2024-11-07 00:28:34,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69219 states, 69218 states have (on average 1.538646016932012) internal successors, (106502), 69218 states have internal predecessors, (106502), 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 00:28:34,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69219 states to 69219 states and 106502 transitions. [2024-11-07 00:28:34,462 INFO L78 Accepts]: Start accepts. Automaton has 69219 states and 106502 transitions. Word has length 99 [2024-11-07 00:28:34,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:28:34,462 INFO L471 AbstractCegarLoop]: Abstraction has 69219 states and 106502 transitions. [2024-11-07 00:28:34,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.9) internal successors, (99), 9 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 00:28:34,462 INFO L276 IsEmpty]: Start isEmpty. Operand 69219 states and 106502 transitions. [2024-11-07 00:28:34,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-07 00:28:34,471 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:28:34,472 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 00:28:34,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-07 00:28:34,472 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:28:34,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:28:34,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1637618692, now seen corresponding path program 1 times [2024-11-07 00:28:34,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:28:34,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965942033] [2024-11-07 00:28:34,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:28:34,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:28:34,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:28:34,872 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 00:28:34,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:28:34,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965942033] [2024-11-07 00:28:34,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965942033] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:28:34,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:28:34,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 00:28:34,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268157461] [2024-11-07 00:28:34,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:28:34,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 00:28:34,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:28:34,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 00:28:34,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-07 00:28:34,874 INFO L87 Difference]: Start difference. First operand 69219 states and 106502 transitions. Second operand has 10 states, 10 states have (on average 9.9) internal successors, (99), 9 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 00:28:35,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:28:35,842 INFO L93 Difference]: Finished difference Result 84596 states and 129380 transitions. [2024-11-07 00:28:35,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-07 00:28:35,843 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.9) internal successors, (99), 9 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 00:28:35,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:28:35,948 INFO L225 Difference]: With dead ends: 84596 [2024-11-07 00:28:35,948 INFO L226 Difference]: Without dead ends: 77189 [2024-11-07 00:28:35,982 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=247, Unknown=0, NotChecked=0, Total=342 [2024-11-07 00:28:35,983 INFO L432 NwaCegarLoop]: 208 mSDtfsCounter, 1354 mSDsluCounter, 896 mSDsCounter, 0 mSdLazyCounter, 791 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1354 SdHoareTripleChecker+Valid, 1104 SdHoareTripleChecker+Invalid, 802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 00:28:35,983 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1354 Valid, 1104 Invalid, 802 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 791 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 00:28:36,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77189 states. [2024-11-07 00:28:36,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77189 to 69219. [2024-11-07 00:28:37,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69219 states, 69218 states have (on average 1.5385882284954782) internal successors, (106498), 69218 states have internal predecessors, (106498), 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 00:28:37,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69219 states to 69219 states and 106498 transitions. [2024-11-07 00:28:37,424 INFO L78 Accepts]: Start accepts. Automaton has 69219 states and 106498 transitions. Word has length 99 [2024-11-07 00:28:37,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:28:37,424 INFO L471 AbstractCegarLoop]: Abstraction has 69219 states and 106498 transitions. [2024-11-07 00:28:37,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.9) internal successors, (99), 9 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 00:28:37,424 INFO L276 IsEmpty]: Start isEmpty. Operand 69219 states and 106498 transitions. [2024-11-07 00:28:37,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-07 00:28:37,434 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:28:37,434 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 00:28:37,434 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-07 00:28:37,435 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:28:37,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:28:37,435 INFO L85 PathProgramCache]: Analyzing trace with hash 607638460, now seen corresponding path program 1 times [2024-11-07 00:28:37,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:28:37,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386027180] [2024-11-07 00:28:37,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:28:37,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:28:37,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:28:37,772 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 00:28:37,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:28:37,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386027180] [2024-11-07 00:28:37,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386027180] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:28:37,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:28:37,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 00:28:37,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484806648] [2024-11-07 00:28:37,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:28:37,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 00:28:37,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:28:37,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 00:28:37,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-07 00:28:37,776 INFO L87 Difference]: Start difference. First operand 69219 states and 106498 transitions. Second operand has 10 states, 10 states have (on average 9.9) internal successors, (99), 9 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 00:28:38,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:28:38,877 INFO L93 Difference]: Finished difference Result 125466 states and 191816 transitions. [2024-11-07 00:28:38,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 00:28:38,878 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.9) internal successors, (99), 9 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 00:28:38,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:28:39,010 INFO L225 Difference]: With dead ends: 125466 [2024-11-07 00:28:39,010 INFO L226 Difference]: Without dead ends: 92450 [2024-11-07 00:28:39,068 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 00:28:39,069 INFO L432 NwaCegarLoop]: 240 mSDtfsCounter, 928 mSDsluCounter, 974 mSDsCounter, 0 mSdLazyCounter, 947 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 928 SdHoareTripleChecker+Valid, 1214 SdHoareTripleChecker+Invalid, 958 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 947 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-07 00:28:39,069 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [928 Valid, 1214 Invalid, 958 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 947 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-07 00:28:39,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92450 states. [2024-11-07 00:28:40,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92450 to 70491. [2024-11-07 00:28:40,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70491 states, 70490 states have (on average 1.535622074053057) internal successors, (108246), 70490 states have internal predecessors, (108246), 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 00:28:40,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70491 states to 70491 states and 108246 transitions. [2024-11-07 00:28:40,435 INFO L78 Accepts]: Start accepts. Automaton has 70491 states and 108246 transitions. Word has length 99 [2024-11-07 00:28:40,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:28:40,436 INFO L471 AbstractCegarLoop]: Abstraction has 70491 states and 108246 transitions. [2024-11-07 00:28:40,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.9) internal successors, (99), 9 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 00:28:40,436 INFO L276 IsEmpty]: Start isEmpty. Operand 70491 states and 108246 transitions. [2024-11-07 00:28:40,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-07 00:28:40,448 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:28:40,448 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 00:28:40,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-07 00:28:40,449 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:28:40,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:28:40,449 INFO L85 PathProgramCache]: Analyzing trace with hash -263021700, now seen corresponding path program 1 times [2024-11-07 00:28:40,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:28:40,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376960117] [2024-11-07 00:28:40,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:28:40,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:28:40,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:28:40,803 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 00:28:40,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:28:40,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376960117] [2024-11-07 00:28:40,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376960117] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:28:40,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:28:40,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 00:28:40,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490994082] [2024-11-07 00:28:40,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:28:40,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 00:28:40,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:28:40,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 00:28:40,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-07 00:28:40,805 INFO L87 Difference]: Start difference. First operand 70491 states and 108246 transitions. Second operand has 10 states, 10 states have (on average 9.9) internal successors, (99), 9 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 00:28:42,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:28:42,358 INFO L93 Difference]: Finished difference Result 162901 states and 248702 transitions. [2024-11-07 00:28:42,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 00:28:42,359 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.9) internal successors, (99), 9 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 00:28:42,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:28:42,524 INFO L225 Difference]: With dead ends: 162901 [2024-11-07 00:28:42,524 INFO L226 Difference]: Without dead ends: 106025 [2024-11-07 00:28:42,600 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2024-11-07 00:28:42,601 INFO L432 NwaCegarLoop]: 242 mSDtfsCounter, 2057 mSDsluCounter, 976 mSDsCounter, 0 mSdLazyCounter, 963 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2057 SdHoareTripleChecker+Valid, 1218 SdHoareTripleChecker+Invalid, 975 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 963 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-07 00:28:42,601 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2057 Valid, 1218 Invalid, 975 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 963 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-07 00:28:42,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106025 states. [2024-11-07 00:28:44,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106025 to 71373. [2024-11-07 00:28:44,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71373 states, 71372 states have (on average 1.53264585551757) internal successors, (109388), 71372 states have internal predecessors, (109388), 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 00:28:44,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71373 states to 71373 states and 109388 transitions. [2024-11-07 00:28:44,181 INFO L78 Accepts]: Start accepts. Automaton has 71373 states and 109388 transitions. Word has length 99 [2024-11-07 00:28:44,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:28:44,181 INFO L471 AbstractCegarLoop]: Abstraction has 71373 states and 109388 transitions. [2024-11-07 00:28:44,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.9) internal successors, (99), 9 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 00:28:44,181 INFO L276 IsEmpty]: Start isEmpty. Operand 71373 states and 109388 transitions. [2024-11-07 00:28:44,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-07 00:28:44,525 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:28:44,525 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 00:28:44,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-07 00:28:44,525 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:28:44,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:28:44,526 INFO L85 PathProgramCache]: Analyzing trace with hash 1187460976, now seen corresponding path program 1 times [2024-11-07 00:28:44,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:28:44,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624567763] [2024-11-07 00:28:44,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:28:44,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:28:44,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:28:44,834 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 00:28:44,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:28:44,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624567763] [2024-11-07 00:28:44,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624567763] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:28:44,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:28:44,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 00:28:44,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943576968] [2024-11-07 00:28:44,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:28:44,836 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 00:28:44,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:28:44,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 00:28:44,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-07 00:28:44,836 INFO L87 Difference]: Start difference. First operand 71373 states and 109388 transitions. Second operand has 10 states, 10 states have (on average 10.0) internal successors, (100), 9 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 00:28:45,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:28:45,980 INFO L93 Difference]: Finished difference Result 179296 states and 274149 transitions. [2024-11-07 00:28:45,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 00:28:45,981 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.0) internal successors, (100), 9 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 00:28:45,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:28:46,142 INFO L225 Difference]: With dead ends: 179296 [2024-11-07 00:28:46,143 INFO L226 Difference]: Without dead ends: 111362 [2024-11-07 00:28:46,216 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 00:28:46,217 INFO L432 NwaCegarLoop]: 246 mSDtfsCounter, 2056 mSDsluCounter, 994 mSDsCounter, 0 mSdLazyCounter, 942 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2056 SdHoareTripleChecker+Valid, 1240 SdHoareTripleChecker+Invalid, 951 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 942 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 00:28:46,217 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2056 Valid, 1240 Invalid, 951 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 942 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 00:28:46,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111362 states. [2024-11-07 00:28:47,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111362 to 72165. [2024-11-07 00:28:47,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72165 states, 72164 states have (on average 1.528587661437836) internal successors, (110309), 72164 states have internal predecessors, (110309), 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 00:28:47,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72165 states to 72165 states and 110309 transitions. [2024-11-07 00:28:47,874 INFO L78 Accepts]: Start accepts. Automaton has 72165 states and 110309 transitions. Word has length 100 [2024-11-07 00:28:47,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:28:47,874 INFO L471 AbstractCegarLoop]: Abstraction has 72165 states and 110309 transitions. [2024-11-07 00:28:47,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.0) internal successors, (100), 9 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 00:28:47,874 INFO L276 IsEmpty]: Start isEmpty. Operand 72165 states and 110309 transitions. [2024-11-07 00:28:47,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-07 00:28:47,888 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:28:47,888 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 00:28:47,888 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-07 00:28:47,888 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:28:47,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:28:47,889 INFO L85 PathProgramCache]: Analyzing trace with hash 239868500, now seen corresponding path program 1 times [2024-11-07 00:28:47,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:28:47,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841464604] [2024-11-07 00:28:47,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:28:47,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:28:47,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:28:48,115 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 00:28:48,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:28:48,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841464604] [2024-11-07 00:28:48,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841464604] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:28:48,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:28:48,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 00:28:48,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658402019] [2024-11-07 00:28:48,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:28:48,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 00:28:48,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:28:48,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 00:28:48,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 00:28:48,119 INFO L87 Difference]: Start difference. First operand 72165 states and 110309 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 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 00:28:48,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:28:48,856 INFO L93 Difference]: Finished difference Result 196905 states and 301831 transitions. [2024-11-07 00:28:48,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 00:28:48,856 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 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 00:28:48,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:28:49,076 INFO L225 Difference]: With dead ends: 196905 [2024-11-07 00:28:49,076 INFO L226 Difference]: Without dead ends: 130855 [2024-11-07 00:28:49,165 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:28:49,165 INFO L432 NwaCegarLoop]: 339 mSDtfsCounter, 235 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 847 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:28:49,166 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 847 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:28:49,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130855 states. [2024-11-07 00:28:51,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130855 to 130181. [2024-11-07 00:28:51,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130181 states, 130180 states have (on average 1.5206406514057458) internal successors, (197957), 130180 states have internal predecessors, (197957), 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 00:28:51,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130181 states to 130181 states and 197957 transitions. [2024-11-07 00:28:51,389 INFO L78 Accepts]: Start accepts. Automaton has 130181 states and 197957 transitions. Word has length 100 [2024-11-07 00:28:51,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:28:51,390 INFO L471 AbstractCegarLoop]: Abstraction has 130181 states and 197957 transitions. [2024-11-07 00:28:51,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 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 00:28:51,390 INFO L276 IsEmpty]: Start isEmpty. Operand 130181 states and 197957 transitions. [2024-11-07 00:28:51,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-07 00:28:51,400 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:28:51,400 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 00:28:51,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-07 00:28:51,401 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:28:51,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:28:51,401 INFO L85 PathProgramCache]: Analyzing trace with hash -555671863, now seen corresponding path program 1 times [2024-11-07 00:28:51,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:28:51,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419403724] [2024-11-07 00:28:51,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:28:51,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:28:51,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:28:51,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:28:51,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:28:51,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419403724] [2024-11-07 00:28:51,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419403724] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:28:51,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:28:51,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:28:51,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494954361] [2024-11-07 00:28:51,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:28:51,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:28:51,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:28:51,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:28:51,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:28:51,468 INFO L87 Difference]: Start difference. First operand 130181 states and 197957 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 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 00:28:52,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:28:52,708 INFO L93 Difference]: Finished difference Result 236786 states and 360679 transitions. [2024-11-07 00:28:52,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:28:52,708 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 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 00:28:52,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:28:52,908 INFO L225 Difference]: With dead ends: 236786 [2024-11-07 00:28:52,908 INFO L226 Difference]: Without dead ends: 161512 [2024-11-07 00:28:52,980 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 00:28:52,980 INFO L432 NwaCegarLoop]: 344 mSDtfsCounter, 221 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 662 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 00:28:52,980 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 662 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:28:53,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161512 states. [2024-11-07 00:28:54,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161512 to 160438. [2024-11-07 00:28:55,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160438 states, 160437 states have (on average 1.5062672575528089) internal successors, (241661), 160437 states have internal predecessors, (241661), 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 00:28:55,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160438 states to 160438 states and 241661 transitions. [2024-11-07 00:28:55,856 INFO L78 Accepts]: Start accepts. Automaton has 160438 states and 241661 transitions. Word has length 100 [2024-11-07 00:28:55,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:28:55,856 INFO L471 AbstractCegarLoop]: Abstraction has 160438 states and 241661 transitions. [2024-11-07 00:28:55,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 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 00:28:55,856 INFO L276 IsEmpty]: Start isEmpty. Operand 160438 states and 241661 transitions. [2024-11-07 00:28:55,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-07 00:28:55,867 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:28:55,867 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 00:28:55,867 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-07 00:28:55,867 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:28:55,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:28:55,868 INFO L85 PathProgramCache]: Analyzing trace with hash -729942153, now seen corresponding path program 1 times [2024-11-07 00:28:55,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:28:55,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921094311] [2024-11-07 00:28:55,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:28:55,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:28:55,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:28:55,938 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 00:28:55,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:28:55,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921094311] [2024-11-07 00:28:55,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921094311] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:28:55,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:28:55,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:28:55,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756670544] [2024-11-07 00:28:55,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:28:55,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:28:55,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:28:55,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:28:55,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:28:55,940 INFO L87 Difference]: Start difference. First operand 160438 states and 241661 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 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 00:28:56,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:28:56,551 INFO L93 Difference]: Finished difference Result 213825 states and 321780 transitions. [2024-11-07 00:28:56,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:28:56,551 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 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 00:28:56,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:28:56,865 INFO L225 Difference]: With dead ends: 213825 [2024-11-07 00:28:56,865 INFO L226 Difference]: Without dead ends: 175623 [2024-11-07 00:28:56,954 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 00:28:56,955 INFO L432 NwaCegarLoop]: 346 mSDtfsCounter, 202 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 665 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:28:56,955 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 665 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:28:57,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175623 states. [2024-11-07 00:28:58,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175623 to 158037. [2024-11-07 00:28:59,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158037 states, 158036 states have (on average 1.4889645397251259) internal successors, (235310), 158036 states have internal predecessors, (235310), 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 00:28:59,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158037 states to 158037 states and 235310 transitions. [2024-11-07 00:28:59,288 INFO L78 Accepts]: Start accepts. Automaton has 158037 states and 235310 transitions. Word has length 100 [2024-11-07 00:28:59,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:28:59,288 INFO L471 AbstractCegarLoop]: Abstraction has 158037 states and 235310 transitions. [2024-11-07 00:28:59,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 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 00:28:59,288 INFO L276 IsEmpty]: Start isEmpty. Operand 158037 states and 235310 transitions. [2024-11-07 00:28:59,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-07 00:28:59,301 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:28:59,301 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 00:28:59,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-07 00:28:59,302 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:28:59,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:28:59,302 INFO L85 PathProgramCache]: Analyzing trace with hash -987199672, now seen corresponding path program 1 times [2024-11-07 00:28:59,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:28:59,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253459345] [2024-11-07 00:28:59,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:28:59,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:28:59,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:28:59,371 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 00:28:59,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:28:59,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253459345] [2024-11-07 00:28:59,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253459345] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:28:59,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:28:59,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:28:59,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791239887] [2024-11-07 00:28:59,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:28:59,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:28:59,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:28:59,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:28:59,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:28:59,374 INFO L87 Difference]: Start difference. First operand 158037 states and 235310 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 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 00:29:01,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:29:01,041 INFO L93 Difference]: Finished difference Result 367123 states and 547393 transitions. [2024-11-07 00:29:01,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:29:01,042 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 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 00:29:01,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:29:01,458 INFO L225 Difference]: With dead ends: 367123 [2024-11-07 00:29:01,458 INFO L226 Difference]: Without dead ends: 222697 [2024-11-07 00:29:01,599 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 00:29:01,599 INFO L432 NwaCegarLoop]: 338 mSDtfsCounter, 246 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 667 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 00:29:01,600 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 667 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:29:01,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222697 states. [2024-11-07 00:29:04,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222697 to 155997. [2024-11-07 00:29:04,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155997 states, 155996 states have (on average 1.47754429600759) internal successors, (230491), 155996 states have internal predecessors, (230491), 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 00:29:04,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155997 states to 155997 states and 230491 transitions. [2024-11-07 00:29:04,434 INFO L78 Accepts]: Start accepts. Automaton has 155997 states and 230491 transitions. Word has length 100 [2024-11-07 00:29:04,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:29:04,434 INFO L471 AbstractCegarLoop]: Abstraction has 155997 states and 230491 transitions. [2024-11-07 00:29:04,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 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 00:29:04,434 INFO L276 IsEmpty]: Start isEmpty. Operand 155997 states and 230491 transitions. [2024-11-07 00:29:04,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-07 00:29:04,447 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:29:04,447 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 00:29:04,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-07 00:29:04,447 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:29:04,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:29:04,448 INFO L85 PathProgramCache]: Analyzing trace with hash 1903929800, now seen corresponding path program 1 times [2024-11-07 00:29:04,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:29:04,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385743909] [2024-11-07 00:29:04,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:29:04,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:29:04,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:29:04,511 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 00:29:04,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:29:04,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385743909] [2024-11-07 00:29:04,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385743909] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:29:04,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:29:04,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:29:04,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167919780] [2024-11-07 00:29:04,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:29:04,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:29:04,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:29:04,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:29:04,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:29:04,513 INFO L87 Difference]: Start difference. First operand 155997 states and 230491 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 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 00:29:05,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:29:05,637 INFO L93 Difference]: Finished difference Result 234390 states and 346506 transitions. [2024-11-07 00:29:05,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:29:05,637 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 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 00:29:05,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:29:05,858 INFO L225 Difference]: With dead ends: 234390 [2024-11-07 00:29:05,858 INFO L226 Difference]: Without dead ends: 165756 [2024-11-07 00:29:05,895 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 00:29:05,895 INFO L432 NwaCegarLoop]: 358 mSDtfsCounter, 207 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 674 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 00:29:05,895 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 674 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:29:06,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165756 states.