./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cambridge.5.prop2-func-interl.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4f9af400 extending candidate: java ['java'] extending candidate: /usr/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/oracle-jdk-bin-*/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/openjdk-*/bin/java ['java', '/usr/bin/java'] extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java ['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java'] ['/root/.sdkman/candidates/java/21.0.5-tem/bin/java', '-Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config', '-Xmx15G', '-Xms4m', '-jar', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar', '-data', '@noDefault', '-ultimatedata', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data', '-tc', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml', '-i', '../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cambridge.5.prop2-func-interl.c', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf', '--cacsl2boogietranslator.entry.function', 'main', '--witnessprinter.witness.directory', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux', '--witnessprinter.witness.filename', 'witness', '--witnessprinter.write.witness.besides.input.file', 'false', '--witnessprinter.graph.data.specification', 'CHECK( init(main()), LTL(G ! call(reach_error())) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '64bit', '--witnessprinter.graph.data.programhash', 'ef52ab2b0a89899bda7343a881c38ca00df348973f86a389121c1626d3bd4b9b'] Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cambridge.5.prop2-func-interl.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash ef52ab2b0a89899bda7343a881c38ca00df348973f86a389121c1626d3bd4b9b --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 02:39:19,001 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 02:39:19,058 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-07 02:39:19,062 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 02:39:19,062 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 02:39:19,086 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 02:39:19,087 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 02:39:19,087 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 02:39:19,088 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 02:39:19,089 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 02:39:19,089 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 02:39:19,089 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 02:39:19,089 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 02:39:19,089 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 02:39:19,089 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 02:39:19,090 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 02:39:19,090 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 02:39:19,090 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 02:39:19,090 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 02:39:19,090 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 02:39:19,090 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 02:39:19,090 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 02:39:19,090 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 02:39:19,090 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 02:39:19,090 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 02:39:19,090 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 02:39:19,090 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 02:39:19,090 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 02:39:19,090 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 02:39:19,090 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 02:39:19,090 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 02:39:19,090 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 02:39:19,090 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 02:39:19,090 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 02:39:19,091 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 02:39:19,091 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 02:39:19,091 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 02:39:19,091 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 02:39:19,091 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 02:39:19,091 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ef52ab2b0a89899bda7343a881c38ca00df348973f86a389121c1626d3bd4b9b [2024-11-07 02:39:19,348 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 02:39:19,357 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 02:39:19,359 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 02:39:19,360 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 02:39:19,360 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 02:39:19,362 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cambridge.5.prop2-func-interl.c [2024-11-07 02:39:20,543 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 02:39:20,902 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 02:39:20,903 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cambridge.5.prop2-func-interl.c [2024-11-07 02:39:20,928 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8f41107e0/315b3fd897da435cbde40ee32b3342fc/FLAG0141da978 [2024-11-07 02:39:21,112 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8f41107e0/315b3fd897da435cbde40ee32b3342fc [2024-11-07 02:39:21,115 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 02:39:21,116 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 02:39:21,117 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 02:39:21,118 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 02:39:21,121 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 02:39:21,121 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:39:21" (1/1) ... [2024-11-07 02:39:21,122 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b79fc7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:39:21, skipping insertion in model container [2024-11-07 02:39:21,122 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:39:21" (1/1) ... [2024-11-07 02:39:21,201 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 02:39:21,398 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cambridge.5.prop2-func-interl.c[1176,1189] [2024-11-07 02:39:21,898 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 02:39:21,909 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 02:39:21,916 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cambridge.5.prop2-func-interl.c[1176,1189] [2024-11-07 02:39:22,285 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 02:39:22,307 INFO L204 MainTranslator]: Completed translation [2024-11-07 02:39:22,308 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:39:22 WrapperNode [2024-11-07 02:39:22,308 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 02:39:22,313 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 02:39:22,313 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 02:39:22,313 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 02:39:22,322 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:39:22" (1/1) ... [2024-11-07 02:39:22,432 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:39:22" (1/1) ... [2024-11-07 02:39:23,746 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 17413 [2024-11-07 02:39:23,747 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 02:39:23,748 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 02:39:23,748 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 02:39:23,748 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 02:39:23,755 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:39:22" (1/1) ... [2024-11-07 02:39:23,755 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:39:22" (1/1) ... [2024-11-07 02:39:24,049 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:39:22" (1/1) ... [2024-11-07 02:39:24,242 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 02:39:24,243 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:39:22" (1/1) ... [2024-11-07 02:39:24,243 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:39:22" (1/1) ... [2024-11-07 02:39:24,641 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:39:22" (1/1) ... [2024-11-07 02:39:24,702 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:39:22" (1/1) ... [2024-11-07 02:39:24,782 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:39:22" (1/1) ... [2024-11-07 02:39:24,842 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:39:22" (1/1) ... [2024-11-07 02:39:25,266 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 02:39:25,268 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 02:39:25,268 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 02:39:25,268 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 02:39:25,272 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:39:22" (1/1) ... [2024-11-07 02:39:25,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 02:39:25,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 02:39:25,333 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-07 02:39:25,343 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-07 02:39:25,376 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 02:39:25,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 02:39:25,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 02:39:25,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 02:39:26,464 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 02:39:26,466 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 02:39:54,683 INFO L? ?]: Removed 10153 outVars from TransFormulas that were not future-live. [2024-11-07 02:39:54,683 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 02:39:54,755 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 02:39:54,755 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-07 02:39:54,755 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:39:54 BoogieIcfgContainer [2024-11-07 02:39:54,756 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 02:39:54,757 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 02:39:54,758 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 02:39:54,761 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 02:39:54,762 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:39:21" (1/3) ... [2024-11-07 02:39:54,762 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29ce454c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:39:54, skipping insertion in model container [2024-11-07 02:39:54,762 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:39:22" (2/3) ... [2024-11-07 02:39:54,763 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29ce454c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:39:54, skipping insertion in model container [2024-11-07 02:39:54,763 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:39:54" (3/3) ... [2024-11-07 02:39:54,764 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cambridge.5.prop2-func-interl.c [2024-11-07 02:39:54,774 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 02:39:54,775 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-07 02:39:54,887 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 02:39:54,894 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;@67afe9cc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 02:39:54,895 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-07 02:39:54,912 INFO L276 IsEmpty]: Start isEmpty. Operand has 5726 states, 5724 states have (on average 1.501572327044025) internal successors, (8595), 5725 states have internal predecessors, (8595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:39:54,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2024-11-07 02:39:54,925 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:39:54,926 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:39:54,926 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:39:54,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:39:54,931 INFO L85 PathProgramCache]: Analyzing trace with hash 286180837, now seen corresponding path program 1 times [2024-11-07 02:39:54,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:39:54,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99326999] [2024-11-07 02:39:54,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:39:54,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:39:55,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:39:55,936 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 02:39:55,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:39:55,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99326999] [2024-11-07 02:39:55,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99326999] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:39:55,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:39:55,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 02:39:55,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593927773] [2024-11-07 02:39:55,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:39:55,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 02:39:55,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:39:55,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 02:39:55,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 02:39:55,974 INFO L87 Difference]: Start difference. First operand has 5726 states, 5724 states have (on average 1.501572327044025) internal successors, (8595), 5725 states have internal predecessors, (8595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 53.75) internal successors, (215), 4 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:39:56,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:39:56,242 INFO L93 Difference]: Finished difference Result 11233 states and 16865 transitions. [2024-11-07 02:39:56,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 02:39:56,244 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 53.75) internal successors, (215), 4 states have internal predecessors, (215), 0 states have call successors, (0), 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 215 [2024-11-07 02:39:56,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:39:56,354 INFO L225 Difference]: With dead ends: 11233 [2024-11-07 02:39:56,354 INFO L226 Difference]: Without dead ends: 5725 [2024-11-07 02:39:56,365 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 02:39:56,369 INFO L432 NwaCegarLoop]: 8589 mSDtfsCounter, 0 mSDsluCounter, 17172 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 25761 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 02:39:56,370 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 25761 Invalid, 11 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 02:39:56,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5725 states. [2024-11-07 02:39:56,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5725 to 5725. [2024-11-07 02:39:56,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5725 states, 5724 states have (on average 1.5012229210342418) internal successors, (8593), 5724 states have internal predecessors, (8593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:39:56,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5725 states to 5725 states and 8593 transitions. [2024-11-07 02:39:56,558 INFO L78 Accepts]: Start accepts. Automaton has 5725 states and 8593 transitions. Word has length 215 [2024-11-07 02:39:56,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:39:56,561 INFO L471 AbstractCegarLoop]: Abstraction has 5725 states and 8593 transitions. [2024-11-07 02:39:56,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.75) internal successors, (215), 4 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:39:56,561 INFO L276 IsEmpty]: Start isEmpty. Operand 5725 states and 8593 transitions. [2024-11-07 02:39:56,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-11-07 02:39:56,567 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:39:56,567 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:39:56,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 02:39:56,568 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:39:56,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:39:56,569 INFO L85 PathProgramCache]: Analyzing trace with hash 283367873, now seen corresponding path program 1 times [2024-11-07 02:39:56,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:39:56,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563429042] [2024-11-07 02:39:56,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:39:56,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:39:56,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:39:56,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:39:56,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:39:56,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563429042] [2024-11-07 02:39:56,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563429042] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:39:56,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:39:56,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 02:39:56,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282969594] [2024-11-07 02:39:56,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:39:56,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 02:39:56,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:39:56,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 02:39:56,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 02:39:56,972 INFO L87 Difference]: Start difference. First operand 5725 states and 8593 transitions. Second operand has 4 states, 4 states have (on average 54.0) internal successors, (216), 4 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:39:57,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:39:57,115 INFO L93 Difference]: Finished difference Result 11234 states and 16863 transitions. [2024-11-07 02:39:57,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 02:39:57,115 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 54.0) internal successors, (216), 4 states have internal predecessors, (216), 0 states have call successors, (0), 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 216 [2024-11-07 02:39:57,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:39:57,134 INFO L225 Difference]: With dead ends: 11234 [2024-11-07 02:39:57,134 INFO L226 Difference]: Without dead ends: 5727 [2024-11-07 02:39:57,141 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 02:39:57,141 INFO L432 NwaCegarLoop]: 8589 mSDtfsCounter, 0 mSDsluCounter, 17168 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 25757 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 02:39:57,142 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 25757 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 02:39:57,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5727 states. [2024-11-07 02:39:57,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5727 to 5727. [2024-11-07 02:39:57,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5727 states, 5726 states have (on average 1.5010478519035977) internal successors, (8595), 5726 states have internal predecessors, (8595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:39:57,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5727 states to 5727 states and 8595 transitions. [2024-11-07 02:39:57,251 INFO L78 Accepts]: Start accepts. Automaton has 5727 states and 8595 transitions. Word has length 216 [2024-11-07 02:39:57,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:39:57,252 INFO L471 AbstractCegarLoop]: Abstraction has 5727 states and 8595 transitions. [2024-11-07 02:39:57,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.0) internal successors, (216), 4 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:39:57,252 INFO L276 IsEmpty]: Start isEmpty. Operand 5727 states and 8595 transitions. [2024-11-07 02:39:57,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2024-11-07 02:39:57,254 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:39:57,254 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:39:57,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 02:39:57,255 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:39:57,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:39:57,258 INFO L85 PathProgramCache]: Analyzing trace with hash -903495106, now seen corresponding path program 1 times [2024-11-07 02:39:57,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:39:57,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658249401] [2024-11-07 02:39:57,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:39:57,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:39:57,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:39:57,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:39:57,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:39:57,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658249401] [2024-11-07 02:39:57,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658249401] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:39:57,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:39:57,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 02:39:57,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635036129] [2024-11-07 02:39:57,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:39:57,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 02:39:57,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:39:57,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 02:39:57,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 02:39:57,688 INFO L87 Difference]: Start difference. First operand 5727 states and 8595 transitions. Second operand has 5 states, 5 states have (on average 43.4) internal successors, (217), 5 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:39:57,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:39:57,938 INFO L93 Difference]: Finished difference Result 16407 states and 24628 transitions. [2024-11-07 02:39:57,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 02:39:57,939 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 43.4) internal successors, (217), 5 states have internal predecessors, (217), 0 states have call successors, (0), 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 217 [2024-11-07 02:39:57,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:39:57,971 INFO L225 Difference]: With dead ends: 16407 [2024-11-07 02:39:57,971 INFO L226 Difference]: Without dead ends: 10898 [2024-11-07 02:39:57,980 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-07 02:39:57,982 INFO L432 NwaCegarLoop]: 8585 mSDtfsCounter, 7886 mSDsluCounter, 25424 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7886 SdHoareTripleChecker+Valid, 34009 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 02:39:57,982 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7886 Valid, 34009 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 02:39:57,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10898 states. [2024-11-07 02:39:58,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10898 to 5925. [2024-11-07 02:39:58,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5925 states, 5924 states have (on average 1.5008440243079) internal successors, (8891), 5924 states have internal predecessors, (8891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:39:58,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5925 states to 5925 states and 8891 transitions. [2024-11-07 02:39:58,133 INFO L78 Accepts]: Start accepts. Automaton has 5925 states and 8891 transitions. Word has length 217 [2024-11-07 02:39:58,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:39:58,134 INFO L471 AbstractCegarLoop]: Abstraction has 5925 states and 8891 transitions. [2024-11-07 02:39:58,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 43.4) internal successors, (217), 5 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:39:58,134 INFO L276 IsEmpty]: Start isEmpty. Operand 5925 states and 8891 transitions. [2024-11-07 02:39:58,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2935 [2024-11-07 02:39:58,243 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:39:58,245 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:39:58,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 02:39:58,245 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:39:58,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:39:58,246 INFO L85 PathProgramCache]: Analyzing trace with hash -851616863, now seen corresponding path program 1 times [2024-11-07 02:39:58,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:39:58,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84136425] [2024-11-07 02:39:58,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:39:58,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:40:02,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:40:08,098 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:40:08,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:40:08,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84136425] [2024-11-07 02:40:08,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84136425] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:40:08,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:40:08,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 02:40:08,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666343998] [2024-11-07 02:40:08,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:40:08,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 02:40:08,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:40:08,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 02:40:08,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 02:40:08,109 INFO L87 Difference]: Start difference. First operand 5925 states and 8891 transitions. Second operand has 4 states, 4 states have (on average 733.5) internal successors, (2934), 4 states have internal predecessors, (2934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:40:08,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:40:08,218 INFO L93 Difference]: Finished difference Result 11434 states and 17160 transitions. [2024-11-07 02:40:08,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 02:40:08,224 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 733.5) internal successors, (2934), 4 states have internal predecessors, (2934), 0 states have call successors, (0), 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 2934 [2024-11-07 02:40:08,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:40:08,245 INFO L225 Difference]: With dead ends: 11434 [2024-11-07 02:40:08,245 INFO L226 Difference]: Without dead ends: 5925 [2024-11-07 02:40:08,252 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 02:40:08,254 INFO L432 NwaCegarLoop]: 8583 mSDtfsCounter, 8379 mSDsluCounter, 8581 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8379 SdHoareTripleChecker+Valid, 17164 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 02:40:08,255 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8379 Valid, 17164 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 02:40:08,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5925 states. [2024-11-07 02:40:08,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5925 to 5925. [2024-11-07 02:40:08,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5925 states, 5924 states have (on average 1.50067521944632) internal successors, (8890), 5924 states have internal predecessors, (8890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:40:08,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5925 states to 5925 states and 8890 transitions. [2024-11-07 02:40:08,352 INFO L78 Accepts]: Start accepts. Automaton has 5925 states and 8890 transitions. Word has length 2934 [2024-11-07 02:40:08,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:40:08,353 INFO L471 AbstractCegarLoop]: Abstraction has 5925 states and 8890 transitions. [2024-11-07 02:40:08,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 733.5) internal successors, (2934), 4 states have internal predecessors, (2934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:40:08,355 INFO L276 IsEmpty]: Start isEmpty. Operand 5925 states and 8890 transitions. [2024-11-07 02:40:08,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2936 [2024-11-07 02:40:08,559 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:40:08,561 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:40:08,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 02:40:08,561 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:40:08,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:40:08,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1453411302, now seen corresponding path program 1 times [2024-11-07 02:40:08,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:40:08,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618368976] [2024-11-07 02:40:08,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:40:08,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:40:10,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:40:14,259 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:40:14,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:40:14,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618368976] [2024-11-07 02:40:14,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618368976] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:40:14,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:40:14,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 02:40:14,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106610706] [2024-11-07 02:40:14,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:40:14,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 02:40:14,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:40:14,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 02:40:14,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 02:40:14,267 INFO L87 Difference]: Start difference. First operand 5925 states and 8890 transitions. Second operand has 4 states, 4 states have (on average 733.75) internal successors, (2935), 4 states have internal predecessors, (2935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:40:14,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:40:14,357 INFO L93 Difference]: Finished difference Result 11434 states and 17158 transitions. [2024-11-07 02:40:14,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 02:40:14,359 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 733.75) internal successors, (2935), 4 states have internal predecessors, (2935), 0 states have call successors, (0), 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 2935 [2024-11-07 02:40:14,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:40:14,368 INFO L225 Difference]: With dead ends: 11434 [2024-11-07 02:40:14,369 INFO L226 Difference]: Without dead ends: 5925 [2024-11-07 02:40:14,376 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 02:40:14,376 INFO L432 NwaCegarLoop]: 8582 mSDtfsCounter, 8349 mSDsluCounter, 8580 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8349 SdHoareTripleChecker+Valid, 17162 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 02:40:14,376 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8349 Valid, 17162 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 02:40:14,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5925 states. [2024-11-07 02:40:14,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5925 to 5925. [2024-11-07 02:40:14,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5925 states, 5924 states have (on average 1.50050641458474) internal successors, (8889), 5924 states have internal predecessors, (8889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:40:14,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5925 states to 5925 states and 8889 transitions. [2024-11-07 02:40:14,467 INFO L78 Accepts]: Start accepts. Automaton has 5925 states and 8889 transitions. Word has length 2935 [2024-11-07 02:40:14,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:40:14,467 INFO L471 AbstractCegarLoop]: Abstraction has 5925 states and 8889 transitions. [2024-11-07 02:40:14,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 733.75) internal successors, (2935), 4 states have internal predecessors, (2935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:40:14,469 INFO L276 IsEmpty]: Start isEmpty. Operand 5925 states and 8889 transitions. [2024-11-07 02:40:14,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2937 [2024-11-07 02:40:14,508 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:40:14,510 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:40:14,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 02:40:14,510 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:40:14,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:40:14,512 INFO L85 PathProgramCache]: Analyzing trace with hash 2038094304, now seen corresponding path program 1 times [2024-11-07 02:40:14,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:40:14,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661695733] [2024-11-07 02:40:14,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:40:14,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:40:16,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:40:21,032 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2024-11-07 02:40:21,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:40:21,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661695733] [2024-11-07 02:40:21,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661695733] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:40:21,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:40:21,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 02:40:21,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762276670] [2024-11-07 02:40:21,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:40:21,035 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 02:40:21,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:40:21,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 02:40:21,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 02:40:21,037 INFO L87 Difference]: Start difference. First operand 5925 states and 8889 transitions. Second operand has 5 states, 5 states have (on average 567.8) internal successors, (2839), 5 states have internal predecessors, (2839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:40:21,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:40:21,138 INFO L93 Difference]: Finished difference Result 11438 states and 17161 transitions. [2024-11-07 02:40:21,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 02:40:21,140 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 567.8) internal successors, (2839), 5 states have internal predecessors, (2839), 0 states have call successors, (0), 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 2936 [2024-11-07 02:40:21,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:40:21,151 INFO L225 Difference]: With dead ends: 11438 [2024-11-07 02:40:21,151 INFO L226 Difference]: Without dead ends: 5929 [2024-11-07 02:40:21,157 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 02:40:21,157 INFO L432 NwaCegarLoop]: 8587 mSDtfsCounter, 0 mSDsluCounter, 17158 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 25745 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 02:40:21,158 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 25745 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 02:40:21,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5929 states. [2024-11-07 02:40:21,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5929 to 5925. [2024-11-07 02:40:21,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5925 states, 5924 states have (on average 1.50050641458474) internal successors, (8889), 5924 states have internal predecessors, (8889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:40:21,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5925 states to 5925 states and 8889 transitions. [2024-11-07 02:40:21,234 INFO L78 Accepts]: Start accepts. Automaton has 5925 states and 8889 transitions. Word has length 2936 [2024-11-07 02:40:21,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:40:21,237 INFO L471 AbstractCegarLoop]: Abstraction has 5925 states and 8889 transitions. [2024-11-07 02:40:21,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 567.8) internal successors, (2839), 5 states have internal predecessors, (2839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:40:21,240 INFO L276 IsEmpty]: Start isEmpty. Operand 5925 states and 8889 transitions. [2024-11-07 02:40:21,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2938 [2024-11-07 02:40:21,281 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:40:21,282 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:40:21,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 02:40:21,282 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:40:21,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:40:21,284 INFO L85 PathProgramCache]: Analyzing trace with hash -334697850, now seen corresponding path program 1 times [2024-11-07 02:40:21,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:40:21,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146845378] [2024-11-07 02:40:21,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:40:21,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:40:24,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:40:30,496 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:40:30,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:40:30,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146845378] [2024-11-07 02:40:30,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146845378] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:40:30,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:40:30,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 02:40:30,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55689163] [2024-11-07 02:40:30,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:40:30,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 02:40:30,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:40:30,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 02:40:30,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 02:40:30,502 INFO L87 Difference]: Start difference. First operand 5925 states and 8889 transitions. Second operand has 4 states, 4 states have (on average 734.25) internal successors, (2937), 4 states have internal predecessors, (2937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:40:30,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:40:30,940 INFO L93 Difference]: Finished difference Result 11418 states and 17140 transitions. [2024-11-07 02:40:30,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 02:40:30,941 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 734.25) internal successors, (2937), 4 states have internal predecessors, (2937), 0 states have call successors, (0), 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 2937 [2024-11-07 02:40:30,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:40:30,952 INFO L225 Difference]: With dead ends: 11418 [2024-11-07 02:40:30,952 INFO L226 Difference]: Without dead ends: 5907 [2024-11-07 02:40:30,958 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 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 02:40:30,959 INFO L432 NwaCegarLoop]: 8348 mSDtfsCounter, 6494 mSDsluCounter, 8345 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6494 SdHoareTripleChecker+Valid, 16693 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-07 02:40:30,960 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6494 Valid, 16693 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-07 02:40:30,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5907 states. [2024-11-07 02:40:31,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5907 to 5907. [2024-11-07 02:40:31,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5907 states, 5906 states have (on average 1.4986454453098543) internal successors, (8851), 5906 states have internal predecessors, (8851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:40:31,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5907 states to 5907 states and 8851 transitions. [2024-11-07 02:40:31,034 INFO L78 Accepts]: Start accepts. Automaton has 5907 states and 8851 transitions. Word has length 2937 [2024-11-07 02:40:31,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:40:31,035 INFO L471 AbstractCegarLoop]: Abstraction has 5907 states and 8851 transitions. [2024-11-07 02:40:31,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 734.25) internal successors, (2937), 4 states have internal predecessors, (2937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:40:31,036 INFO L276 IsEmpty]: Start isEmpty. Operand 5907 states and 8851 transitions. [2024-11-07 02:40:31,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2939 [2024-11-07 02:40:31,075 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:40:31,076 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 02:40:31,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 02:40:31,077 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:40:31,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:40:31,078 INFO L85 PathProgramCache]: Analyzing trace with hash 1058772192, now seen corresponding path program 1 times [2024-11-07 02:40:31,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:40:31,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183194618] [2024-11-07 02:40:31,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:40:31,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:40:34,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat