./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_unwindbound50.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/nla-digbench-scaling/cohencu-ll_unwindbound50.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', 'cb55eb0e5d7c4df3b95a55b83f19894edf68e79ccb0eab5e69a8aa23c994caed'] 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/nla-digbench-scaling/cohencu-ll_unwindbound50.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 cb55eb0e5d7c4df3b95a55b83f19894edf68e79ccb0eab5e69a8aa23c994caed --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-06 22:49:08,025 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-06 22:49:08,099 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-06 22:49:08,102 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-06 22:49:08,103 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-06 22:49:08,122 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-06 22:49:08,123 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-06 22:49:08,123 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-06 22:49:08,123 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-06 22:49:08,124 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-06 22:49:08,124 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-06 22:49:08,124 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-06 22:49:08,124 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-06 22:49:08,124 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-06 22:49:08,124 INFO L153 SettingsManager]: * Use SBE=true [2024-11-06 22:49:08,124 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-06 22:49:08,124 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-06 22:49:08,124 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-06 22:49:08,125 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-06 22:49:08,125 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-06 22:49:08,125 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-06 22:49:08,125 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-06 22:49:08,125 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-06 22:49:08,125 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-06 22:49:08,125 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-06 22:49:08,125 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-06 22:49:08,125 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-06 22:49:08,125 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-06 22:49:08,125 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-06 22:49:08,126 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-06 22:49:08,126 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-06 22:49:08,126 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-06 22:49:08,126 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 22:49:08,126 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-06 22:49:08,126 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-06 22:49:08,126 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-06 22:49:08,126 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-06 22:49:08,126 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-06 22:49:08,126 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-06 22:49:08,126 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-06 22:49:08,126 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-06 22:49:08,127 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-06 22:49:08,127 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 -> cb55eb0e5d7c4df3b95a55b83f19894edf68e79ccb0eab5e69a8aa23c994caed [2024-11-06 22:49:08,386 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-06 22:49:08,391 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-06 22:49:08,393 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-06 22:49:08,394 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-06 22:49:08,394 INFO L274 PluginConnector]: CDTParser initialized [2024-11-06 22:49:08,395 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_unwindbound50.c [2024-11-06 22:49:09,543 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-06 22:49:09,731 INFO L384 CDTParser]: Found 1 translation units. [2024-11-06 22:49:09,731 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_unwindbound50.c [2024-11-06 22:49:09,740 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0d3204282/a004ea64538a4580a07b7ca97eb8e525/FLAGdc1df934c [2024-11-06 22:49:09,752 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0d3204282/a004ea64538a4580a07b7ca97eb8e525 [2024-11-06 22:49:09,754 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-06 22:49:09,756 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-06 22:49:09,757 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-06 22:49:09,757 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-06 22:49:09,760 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-06 22:49:09,761 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:49:09" (1/1) ... [2024-11-06 22:49:09,761 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a1fb2e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:49:09, skipping insertion in model container [2024-11-06 22:49:09,762 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:49:09" (1/1) ... [2024-11-06 22:49:09,773 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-06 22:49:09,874 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/nla-digbench-scaling/cohencu-ll_unwindbound50.c[588,601] [2024-11-06 22:49:09,894 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 22:49:09,905 INFO L200 MainTranslator]: Completed pre-run [2024-11-06 22:49:09,913 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/nla-digbench-scaling/cohencu-ll_unwindbound50.c[588,601] [2024-11-06 22:49:09,924 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 22:49:09,937 INFO L204 MainTranslator]: Completed translation [2024-11-06 22:49:09,939 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:49:09 WrapperNode [2024-11-06 22:49:09,939 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-06 22:49:09,940 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-06 22:49:09,941 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-06 22:49:09,941 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-06 22:49:09,946 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:49:09" (1/1) ... [2024-11-06 22:49:09,956 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:49:09" (1/1) ... [2024-11-06 22:49:09,971 INFO L138 Inliner]: procedures = 14, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 49 [2024-11-06 22:49:09,971 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-06 22:49:09,971 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-06 22:49:09,971 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-06 22:49:09,971 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-06 22:49:09,978 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:49:09" (1/1) ... [2024-11-06 22:49:09,978 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:49:09" (1/1) ... [2024-11-06 22:49:09,980 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:49:09" (1/1) ... [2024-11-06 22:49:09,990 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]. [2024-11-06 22:49:09,991 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:49:09" (1/1) ... [2024-11-06 22:49:09,991 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:49:09" (1/1) ... [2024-11-06 22:49:09,993 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:49:09" (1/1) ... [2024-11-06 22:49:09,997 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:49:09" (1/1) ... [2024-11-06 22:49:09,999 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:49:09" (1/1) ... [2024-11-06 22:49:09,999 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:49:09" (1/1) ... [2024-11-06 22:49:10,000 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-06 22:49:10,000 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-06 22:49:10,000 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-06 22:49:10,000 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-06 22:49:10,001 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:49:09" (1/1) ... [2024-11-06 22:49:10,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 22:49:10,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 22:49:10,030 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) [2024-11-06 22:49:10,035 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 [2024-11-06 22:49:10,049 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-06 22:49:10,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-06 22:49:10,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-06 22:49:10,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-06 22:49:10,050 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-06 22:49:10,050 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-06 22:49:10,096 INFO L238 CfgBuilder]: Building ICFG [2024-11-06 22:49:10,098 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-06 22:49:10,195 INFO L? ?]: Removed 4 outVars from TransFormulas that were not future-live. [2024-11-06 22:49:10,195 INFO L287 CfgBuilder]: Performing block encoding [2024-11-06 22:49:10,201 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-06 22:49:10,201 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-06 22:49:10,202 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:49:10 BoogieIcfgContainer [2024-11-06 22:49:10,202 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-06 22:49:10,204 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-06 22:49:10,204 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-06 22:49:10,208 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-06 22:49:10,208 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:49:09" (1/3) ... [2024-11-06 22:49:10,208 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cbc8d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:49:10, skipping insertion in model container [2024-11-06 22:49:10,209 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:49:09" (2/3) ... [2024-11-06 22:49:10,209 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cbc8d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:49:10, skipping insertion in model container [2024-11-06 22:49:10,209 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:49:10" (3/3) ... [2024-11-06 22:49:10,210 INFO L112 eAbstractionObserver]: Analyzing ICFG cohencu-ll_unwindbound50.c [2024-11-06 22:49:10,220 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-06 22:49:10,221 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-06 22:49:10,264 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-06 22:49:10,274 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;@1b452218, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-06 22:49:10,276 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-06 22:49:10,280 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-06 22:49:10,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-06 22:49:10,286 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 22:49:10,286 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-06 22:49:10,287 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 22:49:10,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 22:49:10,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1823967074, now seen corresponding path program 1 times [2024-11-06 22:49:10,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 22:49:10,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357860638] [2024-11-06 22:49:10,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 22:49:10,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 22:49:10,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:49:10,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 22:49:10,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 22:49:10,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357860638] [2024-11-06 22:49:10,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357860638] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 22:49:10,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 22:49:10,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 22:49:10,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819718345] [2024-11-06 22:49:10,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 22:49:10,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-06 22:49:10,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 22:49:10,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-06 22:49:10,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-06 22:49:10,439 INFO L87 Difference]: Start difference. First operand has 26 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 22:49:10,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 22:49:10,455 INFO L93 Difference]: Finished difference Result 50 states and 87 transitions. [2024-11-06 22:49:10,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-06 22:49:10,456 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-06 22:49:10,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 22:49:10,460 INFO L225 Difference]: With dead ends: 50 [2024-11-06 22:49:10,461 INFO L226 Difference]: Without dead ends: 22 [2024-11-06 22:49:10,466 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-06 22:49:10,468 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-06 22:49:10,469 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-06 22:49:10,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2024-11-06 22:49:10,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2024-11-06 22:49:10,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-06 22:49:10,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 33 transitions. [2024-11-06 22:49:10,503 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 33 transitions. Word has length 7 [2024-11-06 22:49:10,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 22:49:10,503 INFO L471 AbstractCegarLoop]: Abstraction has 22 states and 33 transitions. [2024-11-06 22:49:10,503 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 22:49:10,503 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 33 transitions. [2024-11-06 22:49:10,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-06 22:49:10,503 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 22:49:10,503 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 22:49:10,504 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-06 22:49:10,504 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 22:49:10,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 22:49:10,508 INFO L85 PathProgramCache]: Analyzing trace with hash 178926099, now seen corresponding path program 1 times [2024-11-06 22:49:10,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 22:49:10,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728875116] [2024-11-06 22:49:10,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 22:49:10,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 22:49:10,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:49:10,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 22:49:10,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 22:49:10,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728875116] [2024-11-06 22:49:10,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728875116] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 22:49:10,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 22:49:10,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 22:49:10,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613865950] [2024-11-06 22:49:10,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 22:49:10,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-06 22:49:10,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 22:49:10,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-06 22:49:10,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-06 22:49:10,582 INFO L87 Difference]: Start difference. First operand 22 states and 33 transitions. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 22:49:10,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 22:49:10,597 INFO L93 Difference]: Finished difference Result 36 states and 52 transitions. [2024-11-06 22:49:10,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-06 22:49:10,597 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-06 22:49:10,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 22:49:10,598 INFO L225 Difference]: With dead ends: 36 [2024-11-06 22:49:10,598 INFO L226 Difference]: Without dead ends: 24 [2024-11-06 22:49:10,598 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-06 22:49:10,599 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 0 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-06 22:49:10,599 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 89 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-06 22:49:10,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2024-11-06 22:49:10,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2024-11-06 22:49:10,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-06 22:49:10,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 35 transitions. [2024-11-06 22:49:10,608 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 35 transitions. Word has length 8 [2024-11-06 22:49:10,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 22:49:10,609 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 35 transitions. [2024-11-06 22:49:10,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 22:49:10,609 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 35 transitions. [2024-11-06 22:49:10,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-06 22:49:10,609 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 22:49:10,609 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 22:49:10,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-06 22:49:10,612 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 22:49:10,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 22:49:10,613 INFO L85 PathProgramCache]: Analyzing trace with hash 180475231, now seen corresponding path program 1 times [2024-11-06 22:49:10,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 22:49:10,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034427846] [2024-11-06 22:49:10,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 22:49:10,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 22:49:10,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:49:10,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 22:49:10,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 22:49:10,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034427846] [2024-11-06 22:49:10,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034427846] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 22:49:10,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 22:49:10,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-06 22:49:10,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842075598] [2024-11-06 22:49:10,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 22:49:10,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-06 22:49:10,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 22:49:10,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-06 22:49:10,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-06 22:49:10,752 INFO L87 Difference]: Start difference. First operand 24 states and 35 transitions. Second operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 22:49:10,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 22:49:10,883 INFO L93 Difference]: Finished difference Result 30 states and 40 transitions. [2024-11-06 22:49:10,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-06 22:49:10,884 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-06 22:49:10,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 22:49:10,884 INFO L225 Difference]: With dead ends: 30 [2024-11-06 22:49:10,884 INFO L226 Difference]: Without dead ends: 28 [2024-11-06 22:49:10,885 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-06 22:49:10,885 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 5 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-06 22:49:10,885 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 85 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-06 22:49:10,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-11-06 22:49:10,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2024-11-06 22:49:10,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-06 22:49:10,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 38 transitions. [2024-11-06 22:49:10,902 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 38 transitions. Word has length 8 [2024-11-06 22:49:10,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 22:49:10,902 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 38 transitions. [2024-11-06 22:49:10,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 22:49:10,903 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 38 transitions. [2024-11-06 22:49:10,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-06 22:49:10,903 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 22:49:10,904 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 22:49:10,904 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-06 22:49:10,904 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 22:49:10,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 22:49:10,904 INFO L85 PathProgramCache]: Analyzing trace with hash -1275442234, now seen corresponding path program 1 times [2024-11-06 22:49:10,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 22:49:10,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110929838] [2024-11-06 22:49:10,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 22:49:10,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 22:49:10,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-06 22:49:10,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [719664865] [2024-11-06 22:49:10,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 22:49:10,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 22:49:10,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 22:49:10,932 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 22:49:10,933 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-06 22:49:10,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:49:10,979 INFO L255 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-06 22:49:10,984 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 22:49:11,057 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 22:49:11,059 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 22:49:11,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 22:49:11,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110929838] [2024-11-06 22:49:11,060 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-06 22:49:11,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [719664865] [2024-11-06 22:49:11,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [719664865] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 22:49:11,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 22:49:11,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-06 22:49:11,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26484248] [2024-11-06 22:49:11,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 22:49:11,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-06 22:49:11,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 22:49:11,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-06 22:49:11,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-06 22:49:11,061 INFO L87 Difference]: Start difference. First operand 28 states and 38 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-06 22:49:11,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 22:49:11,139 INFO L93 Difference]: Finished difference Result 46 states and 66 transitions. [2024-11-06 22:49:11,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-06 22:49:11,141 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2024-11-06 22:49:11,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 22:49:11,142 INFO L225 Difference]: With dead ends: 46 [2024-11-06 22:49:11,142 INFO L226 Difference]: Without dead ends: 44 [2024-11-06 22:49:11,142 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-06 22:49:11,142 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 4 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-06 22:49:11,144 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 120 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-06 22:49:11,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2024-11-06 22:49:11,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 34. [2024-11-06 22:49:11,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 19 states have internal predecessors, (20), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (12), 11 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-06 22:49:11,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 45 transitions. [2024-11-06 22:49:11,157 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 45 transitions. Word has length 13 [2024-11-06 22:49:11,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 22:49:11,157 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 45 transitions. [2024-11-06 22:49:11,157 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-06 22:49:11,157 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2024-11-06 22:49:11,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-06 22:49:11,157 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 22:49:11,157 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 22:49:11,169 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-06 22:49:11,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 22:49:11,358 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 22:49:11,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 22:49:11,359 INFO L85 PathProgramCache]: Analyzing trace with hash 427545983, now seen corresponding path program 1 times [2024-11-06 22:49:11,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 22:49:11,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722679654] [2024-11-06 22:49:11,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 22:49:11,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 22:49:11,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-06 22:49:11,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1504149435] [2024-11-06 22:49:11,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 22:49:11,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 22:49:11,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 22:49:11,372 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 22:49:11,373 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-06 22:49:11,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:49:11,432 INFO L255 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-06 22:49:11,433 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 22:49:11,485 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-06 22:49:11,485 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 22:49:11,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 22:49:11,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722679654] [2024-11-06 22:49:11,485 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-06 22:49:11,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1504149435] [2024-11-06 22:49:11,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1504149435] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 22:49:11,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 22:49:11,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-06 22:49:11,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478709663] [2024-11-06 22:49:11,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 22:49:11,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-06 22:49:11,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 22:49:11,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-06 22:49:11,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-06 22:49:11,486 INFO L87 Difference]: Start difference. First operand 34 states and 45 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-06 22:49:11,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 22:49:11,560 INFO L93 Difference]: Finished difference Result 50 states and 69 transitions. [2024-11-06 22:49:11,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-06 22:49:11,560 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2024-11-06 22:49:11,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 22:49:11,561 INFO L225 Difference]: With dead ends: 50 [2024-11-06 22:49:11,561 INFO L226 Difference]: Without dead ends: 48 [2024-11-06 22:49:11,561 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-06 22:49:11,562 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 4 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-06 22:49:11,562 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 129 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-06 22:49:11,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2024-11-06 22:49:11,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 44. [2024-11-06 22:49:11,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 23 states have internal predecessors, (25), 18 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (17), 16 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-06 22:49:11,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 60 transitions. [2024-11-06 22:49:11,570 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 60 transitions. Word has length 18 [2024-11-06 22:49:11,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 22:49:11,571 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 60 transitions. [2024-11-06 22:49:11,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-06 22:49:11,571 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 60 transitions. [2024-11-06 22:49:11,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-06 22:49:11,571 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 22:49:11,571 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 22:49:11,583 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-06 22:49:11,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 22:49:11,775 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 22:49:11,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 22:49:11,775 INFO L85 PathProgramCache]: Analyzing trace with hash 5607206, now seen corresponding path program 1 times [2024-11-06 22:49:11,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 22:49:11,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993573637] [2024-11-06 22:49:11,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 22:49:11,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 22:49:11,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-06 22:49:11,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [354814088] [2024-11-06 22:49:11,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 22:49:11,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 22:49:11,791 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 22:49:11,796 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 22:49:11,797 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-06 22:49:11,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:49:11,836 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-06 22:49:11,837 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 22:49:11,909 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-06 22:49:11,909 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 22:49:11,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 22:49:11,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993573637] [2024-11-06 22:49:11,909 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-06 22:49:11,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [354814088] [2024-11-06 22:49:11,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [354814088] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 22:49:11,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 22:49:11,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-06 22:49:11,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148607739] [2024-11-06 22:49:11,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 22:49:11,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-06 22:49:11,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 22:49:11,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-06 22:49:11,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-06 22:49:11,911 INFO L87 Difference]: Start difference. First operand 44 states and 60 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-06 22:49:11,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 22:49:11,972 INFO L93 Difference]: Finished difference Result 58 states and 75 transitions. [2024-11-06 22:49:11,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-06 22:49:11,973 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 23 [2024-11-06 22:49:11,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 22:49:11,973 INFO L225 Difference]: With dead ends: 58 [2024-11-06 22:49:11,973 INFO L226 Difference]: Without dead ends: 46 [2024-11-06 22:49:11,973 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-06 22:49:11,974 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 4 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-06 22:49:11,974 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 115 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-06 22:49:11,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-11-06 22:49:11,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2024-11-06 22:49:11,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 24 states have (on average 1.125) internal successors, (27), 25 states have internal predecessors, (27), 16 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-06 22:49:11,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 58 transitions. [2024-11-06 22:49:11,983 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 58 transitions. Word has length 23 [2024-11-06 22:49:11,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 22:49:11,983 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 58 transitions. [2024-11-06 22:49:11,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-06 22:49:11,983 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 58 transitions. [2024-11-06 22:49:11,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-06 22:49:11,985 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 22:49:11,985 INFO L215 NwaCegarLoop]: trace histogram [7, 6, 6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 22:49:11,997 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-06 22:49:12,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 22:49:12,186 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 22:49:12,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 22:49:12,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1172224904, now seen corresponding path program 1 times [2024-11-06 22:49:12,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 22:49:12,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422659217] [2024-11-06 22:49:12,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 22:49:12,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 22:49:12,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:49:12,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-06 22:49:12,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:49:12,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-06 22:49:12,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:49:12,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-06 22:49:12,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:49:12,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-06 22:49:12,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:49:12,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-06 22:49:12,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:49:12,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-06 22:49:12,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:49:12,304 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-06 22:49:12,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 22:49:12,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422659217] [2024-11-06 22:49:12,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422659217] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 22:49:12,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [720984785] [2024-11-06 22:49:12,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 22:49:12,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 22:49:12,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 22:49:12,308 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 22:49:12,321 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-06 22:49:12,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:49:12,358 INFO L255 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-06 22:49:12,361 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 22:49:12,407 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 30 proven. 2 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-06 22:49:12,410 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-06 22:49:12,469 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-06 22:49:12,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [720984785] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-06 22:49:12,470 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-06 22:49:12,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 5] total 8 [2024-11-06 22:49:12,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216724371] [2024-11-06 22:49:12,470 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-06 22:49:12,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-06 22:49:12,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 22:49:12,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-06 22:49:12,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-06 22:49:12,472 INFO L87 Difference]: Start difference. First operand 46 states and 58 transitions. Second operand has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-06 22:49:12,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 22:49:12,613 INFO L93 Difference]: Finished difference Result 116 states and 151 transitions. [2024-11-06 22:49:12,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-06 22:49:12,614 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 41 [2024-11-06 22:49:12,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 22:49:12,615 INFO L225 Difference]: With dead ends: 116 [2024-11-06 22:49:12,615 INFO L226 Difference]: Without dead ends: 100 [2024-11-06 22:49:12,615 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-06 22:49:12,616 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 51 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-06 22:49:12,616 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 138 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-06 22:49:12,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2024-11-06 22:49:12,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 96. [2024-11-06 22:49:12,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 47 states have (on average 1.148936170212766) internal successors, (54), 50 states have internal predecessors, (54), 38 states have call successors, (38), 10 states have call predecessors, (38), 10 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-06 22:49:12,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 127 transitions. [2024-11-06 22:49:12,633 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 127 transitions. Word has length 41 [2024-11-06 22:49:12,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 22:49:12,633 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 127 transitions. [2024-11-06 22:49:12,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-06 22:49:12,633 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 127 transitions. [2024-11-06 22:49:12,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-06 22:49:12,634 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 22:49:12,634 INFO L215 NwaCegarLoop]: trace histogram [7, 6, 6, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 22:49:12,646 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-06 22:49:12,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-06 22:49:12,839 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 22:49:12,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 22:49:12,839 INFO L85 PathProgramCache]: Analyzing trace with hash -680109588, now seen corresponding path program 1 times [2024-11-06 22:49:12,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 22:49:12,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290618777] [2024-11-06 22:49:12,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 22:49:12,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 22:49:12,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-06 22:49:12,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1202663223] [2024-11-06 22:49:12,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 22:49:12,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 22:49:12,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 22:49:12,855 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 22:49:12,856 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-06 22:49:12,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:49:12,900 INFO L255 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-06 22:49:12,901 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 22:49:13,014 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 11 proven. 20 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-06 22:49:13,014 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-06 22:49:13,145 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 14 proven. 17 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-06 22:49:13,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 22:49:13,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290618777] [2024-11-06 22:49:13,145 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-06 22:49:13,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1202663223] [2024-11-06 22:49:13,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1202663223] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-06 22:49:13,146 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-06 22:49:13,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2024-11-06 22:49:13,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742260241] [2024-11-06 22:49:13,146 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-06 22:49:13,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-06 22:49:13,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 22:49:13,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-06 22:49:13,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-06 22:49:13,147 INFO L87 Difference]: Start difference. First operand 96 states and 127 transitions. Second operand has 13 states, 13 states have (on average 2.0) internal successors, (26), 11 states have internal predecessors, (26), 5 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) [2024-11-06 22:49:13,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 22:49:13,372 INFO L93 Difference]: Finished difference Result 114 states and 143 transitions. [2024-11-06 22:49:13,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-06 22:49:13,373 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.0) internal successors, (26), 11 states have internal predecessors, (26), 5 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) Word has length 41 [2024-11-06 22:49:13,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 22:49:13,375 INFO L225 Difference]: With dead ends: 114 [2024-11-06 22:49:13,376 INFO L226 Difference]: Without dead ends: 112 [2024-11-06 22:49:13,376 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2024-11-06 22:49:13,377 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 14 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-06 22:49:13,377 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 164 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-06 22:49:13,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-11-06 22:49:13,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2024-11-06 22:49:13,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 59 states have (on average 1.11864406779661) internal successors, (66), 62 states have internal predecessors, (66), 38 states have call successors, (38), 14 states have call predecessors, (38), 14 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-06 22:49:13,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 139 transitions. [2024-11-06 22:49:13,421 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 139 transitions. Word has length 41 [2024-11-06 22:49:13,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 22:49:13,423 INFO L471 AbstractCegarLoop]: Abstraction has 112 states and 139 transitions. [2024-11-06 22:49:13,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.0) internal successors, (26), 11 states have internal predecessors, (26), 5 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) [2024-11-06 22:49:13,423 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 139 transitions. [2024-11-06 22:49:13,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-06 22:49:13,424 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 22:49:13,424 INFO L215 NwaCegarLoop]: trace histogram [8, 7, 7, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 22:49:13,436 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-06 22:49:13,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 22:49:13,624 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 22:49:13,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 22:49:13,625 INFO L85 PathProgramCache]: Analyzing trace with hash -399462631, now seen corresponding path program 2 times [2024-11-06 22:49:13,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 22:49:13,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406073050] [2024-11-06 22:49:13,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 22:49:13,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 22:49:13,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-06 22:49:13,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1744391304] [2024-11-06 22:49:13,641 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-06 22:49:13,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 22:49:13,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 22:49:13,644 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 22:49:13,645 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-06 22:49:13,683 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-06 22:49:13,683 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-06 22:49:13,684 INFO L255 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-06 22:49:13,685 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 22:49:13,817 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 28 proven. 9 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-06 22:49:13,818 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-06 22:49:13,978 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 28 proven. 9 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-06 22:49:13,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 22:49:13,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406073050] [2024-11-06 22:49:13,979 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-06 22:49:13,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1744391304] [2024-11-06 22:49:13,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1744391304] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-06 22:49:13,979 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-06 22:49:13,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 14 [2024-11-06 22:49:13,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737244230] [2024-11-06 22:49:13,979 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-06 22:49:13,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-06 22:49:13,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 22:49:13,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-06 22:49:13,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2024-11-06 22:49:13,980 INFO L87 Difference]: Start difference. First operand 112 states and 139 transitions. Second operand has 14 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 11 states have internal predecessors, (26), 6 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (14), 4 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-06 22:49:14,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 22:49:14,224 INFO L93 Difference]: Finished difference Result 127 states and 154 transitions. [2024-11-06 22:49:14,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-06 22:49:14,224 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 11 states have internal predecessors, (26), 6 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (14), 4 states have call predecessors, (14), 6 states have call successors, (14) Word has length 46 [2024-11-06 22:49:14,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 22:49:14,226 INFO L225 Difference]: With dead ends: 127 [2024-11-06 22:49:14,226 INFO L226 Difference]: Without dead ends: 122 [2024-11-06 22:49:14,227 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2024-11-06 22:49:14,227 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 14 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-06 22:49:14,227 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 110 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-06 22:49:14,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-11-06 22:49:14,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 121. [2024-11-06 22:49:14,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 68 states have (on average 1.1029411764705883) internal successors, (75), 71 states have internal predecessors, (75), 35 states have call successors, (35), 17 states have call predecessors, (35), 17 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-06 22:49:14,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 142 transitions. [2024-11-06 22:49:14,262 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 142 transitions. Word has length 46 [2024-11-06 22:49:14,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 22:49:14,262 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 142 transitions. [2024-11-06 22:49:14,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 11 states have internal predecessors, (26), 6 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (14), 4 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-06 22:49:14,262 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 142 transitions. [2024-11-06 22:49:14,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-06 22:49:14,265 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 22:49:14,265 INFO L215 NwaCegarLoop]: trace histogram [12, 11, 11, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 22:49:14,278 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-06 22:49:14,469 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-06 22:49:14,470 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 22:49:14,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 22:49:14,470 INFO L85 PathProgramCache]: Analyzing trace with hash 616227619, now seen corresponding path program 1 times [2024-11-06 22:49:14,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 22:49:14,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650041069] [2024-11-06 22:49:14,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 22:49:14,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 22:49:14,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-06 22:49:14,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [146814732] [2024-11-06 22:49:14,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 22:49:14,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 22:49:14,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 22:49:14,502 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 22:49:14,503 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-06 22:49:14,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:49:14,558 INFO L255 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-06 22:49:14,561 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 22:49:14,740 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 21 proven. 39 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-06 22:49:14,740 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-06 22:49:15,122 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 24 proven. 36 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-06 22:49:15,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 22:49:15,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650041069] [2024-11-06 22:49:15,123 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-06 22:49:15,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [146814732] [2024-11-06 22:49:15,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [146814732] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-06 22:49:15,123 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-06 22:49:15,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 14 [2024-11-06 22:49:15,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597058895] [2024-11-06 22:49:15,125 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-06 22:49:15,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-06 22:49:15,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 22:49:15,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-06 22:49:15,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2024-11-06 22:49:15,126 INFO L87 Difference]: Start difference. First operand 121 states and 142 transitions. Second operand has 14 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 12 states have internal predecessors, (28), 7 states have call successors, (24), 3 states have call predecessors, (24), 2 states have return successors, (22), 6 states have call predecessors, (22), 7 states have call successors, (22) [2024-11-06 22:49:15,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 22:49:15,543 INFO L93 Difference]: Finished difference Result 137 states and 159 transitions. [2024-11-06 22:49:15,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-06 22:49:15,543 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 12 states have internal predecessors, (28), 7 states have call successors, (24), 3 states have call predecessors, (24), 2 states have return successors, (22), 6 states have call predecessors, (22), 7 states have call successors, (22) Word has length 67 [2024-11-06 22:49:15,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 22:49:15,544 INFO L225 Difference]: With dead ends: 137 [2024-11-06 22:49:15,544 INFO L226 Difference]: Without dead ends: 133 [2024-11-06 22:49:15,545 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2024-11-06 22:49:15,545 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 8 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-06 22:49:15,545 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 172 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-06 22:49:15,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2024-11-06 22:49:15,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2024-11-06 22:49:15,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 76 states have (on average 1.0789473684210527) internal successors, (82), 79 states have internal predecessors, (82), 37 states have call successors, (37), 20 states have call predecessors, (37), 19 states have return successors, (34), 33 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-06 22:49:15,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 153 transitions. [2024-11-06 22:49:15,576 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 153 transitions. Word has length 67 [2024-11-06 22:49:15,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 22:49:15,576 INFO L471 AbstractCegarLoop]: Abstraction has 133 states and 153 transitions. [2024-11-06 22:49:15,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 12 states have internal predecessors, (28), 7 states have call successors, (24), 3 states have call predecessors, (24), 2 states have return successors, (22), 6 states have call predecessors, (22), 7 states have call successors, (22) [2024-11-06 22:49:15,576 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 153 transitions. [2024-11-06 22:49:15,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-06 22:49:15,577 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 22:49:15,577 INFO L215 NwaCegarLoop]: trace histogram [13, 12, 12, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 22:49:15,589 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-06 22:49:15,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 22:49:15,782 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 22:49:15,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 22:49:15,782 INFO L85 PathProgramCache]: Analyzing trace with hash 1808123650, now seen corresponding path program 1 times [2024-11-06 22:49:15,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 22:49:15,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343282003] [2024-11-06 22:49:15,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 22:49:15,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 22:49:15,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-06 22:49:15,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1437015374] [2024-11-06 22:49:15,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 22:49:15,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 22:49:15,796 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 22:49:15,798 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 22:49:15,800 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-06 22:49:15,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:49:15,842 INFO L255 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-06 22:49:15,843 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 22:49:16,001 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 23 proven. 42 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-06 22:49:16,001 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-06 22:49:16,295 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 23 proven. 42 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-06 22:49:16,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 22:49:16,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343282003] [2024-11-06 22:49:16,296 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-06 22:49:16,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1437015374] [2024-11-06 22:49:16,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1437015374] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-06 22:49:16,296 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-06 22:49:16,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2024-11-06 22:49:16,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315254806] [2024-11-06 22:49:16,296 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-06 22:49:16,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-06 22:49:16,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 22:49:16,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-06 22:49:16,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2024-11-06 22:49:16,297 INFO L87 Difference]: Start difference. First operand 133 states and 153 transitions. Second operand has 15 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 13 states have internal predecessors, (28), 7 states have call successors, (26), 3 states have call predecessors, (26), 2 states have return successors, (24), 6 states have call predecessors, (24), 7 states have call successors, (24) [2024-11-06 22:49:16,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 22:49:16,881 INFO L93 Difference]: Finished difference Result 144 states and 164 transitions. [2024-11-06 22:49:16,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-06 22:49:16,882 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 13 states have internal predecessors, (28), 7 states have call successors, (26), 3 states have call predecessors, (26), 2 states have return successors, (24), 6 states have call predecessors, (24), 7 states have call successors, (24) Word has length 72 [2024-11-06 22:49:16,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 22:49:16,884 INFO L225 Difference]: With dead ends: 144 [2024-11-06 22:49:16,884 INFO L226 Difference]: Without dead ends: 133 [2024-11-06 22:49:16,885 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2024-11-06 22:49:16,885 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 11 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-06 22:49:16,886 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 177 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-06 22:49:16,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2024-11-06 22:49:16,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2024-11-06 22:49:16,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 77 states have (on average 1.0649350649350648) internal successors, (82), 80 states have internal predecessors, (82), 35 states have call successors, (35), 20 states have call predecessors, (35), 20 states have return successors, (33), 32 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-06 22:49:16,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 150 transitions. [2024-11-06 22:49:16,914 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 150 transitions. Word has length 72 [2024-11-06 22:49:16,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 22:49:16,915 INFO L471 AbstractCegarLoop]: Abstraction has 133 states and 150 transitions. [2024-11-06 22:49:16,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 13 states have internal predecessors, (28), 7 states have call successors, (26), 3 states have call predecessors, (26), 2 states have return successors, (24), 6 states have call predecessors, (24), 7 states have call successors, (24) [2024-11-06 22:49:16,915 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 150 transitions. [2024-11-06 22:49:16,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-06 22:49:16,915 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 22:49:16,916 INFO L215 NwaCegarLoop]: trace histogram [14, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1] [2024-11-06 22:49:16,928 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-06 22:49:17,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 22:49:17,118 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 22:49:17,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 22:49:17,118 INFO L85 PathProgramCache]: Analyzing trace with hash 514910066, now seen corresponding path program 3 times [2024-11-06 22:49:17,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 22:49:17,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095086844] [2024-11-06 22:49:17,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 22:49:17,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 22:49:17,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-06 22:49:17,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [36905564] [2024-11-06 22:49:17,144 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-06 22:49:17,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 22:49:17,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 22:49:17,147 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 22:49:17,148 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-06 22:49:17,216 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-06 22:49:17,216 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-06 22:49:17,217 INFO L255 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-06 22:49:17,219 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 22:49:17,397 INFO L134 CoverageAnalysis]: Checked inductivity of 358 backedges. 55 proven. 27 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2024-11-06 22:49:17,397 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-06 22:49:18,026 INFO L134 CoverageAnalysis]: Checked inductivity of 358 backedges. 55 proven. 27 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2024-11-06 22:49:18,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 22:49:18,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095086844] [2024-11-06 22:49:18,027 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-06 22:49:18,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [36905564] [2024-11-06 22:49:18,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [36905564] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-06 22:49:18,027 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-06 22:49:18,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 16 [2024-11-06 22:49:18,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931576502] [2024-11-06 22:49:18,027 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-06 22:49:18,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-06 22:49:18,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 22:49:18,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-06 22:49:18,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2024-11-06 22:49:18,028 INFO L87 Difference]: Start difference. First operand 133 states and 150 transitions. Second operand has 16 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 13 states have internal predecessors, (32), 8 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (26), 6 states have call predecessors, (26), 8 states have call successors, (26) [2024-11-06 22:49:18,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 22:49:18,894 INFO L93 Difference]: Finished difference Result 140 states and 157 transitions. [2024-11-06 22:49:18,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-06 22:49:18,894 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 13 states have internal predecessors, (32), 8 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (26), 6 states have call predecessors, (26), 8 states have call successors, (26) Word has length 79 [2024-11-06 22:49:18,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 22:49:18,897 INFO L225 Difference]: With dead ends: 140 [2024-11-06 22:49:18,897 INFO L226 Difference]: Without dead ends: 122 [2024-11-06 22:49:18,898 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=80, Invalid=262, Unknown=0, NotChecked=0, Total=342 [2024-11-06 22:49:18,898 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 16 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-06 22:49:18,898 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 217 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-06 22:49:18,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-11-06 22:49:18,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 121. [2024-11-06 22:49:18,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 74 states have (on average 1.0405405405405406) internal successors, (77), 76 states have internal predecessors, (77), 27 states have call successors, (27), 19 states have call predecessors, (27), 19 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-06 22:49:18,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 130 transitions. [2024-11-06 22:49:18,916 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 130 transitions. Word has length 79 [2024-11-06 22:49:18,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 22:49:18,916 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 130 transitions. [2024-11-06 22:49:18,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 13 states have internal predecessors, (32), 8 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (26), 6 states have call predecessors, (26), 8 states have call successors, (26) [2024-11-06 22:49:18,920 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 130 transitions. [2024-11-06 22:49:18,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-06 22:49:18,921 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 22:49:18,921 INFO L215 NwaCegarLoop]: trace histogram [22, 21, 21, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 22:49:18,927 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-06 22:49:19,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 22:49:19,122 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 22:49:19,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 22:49:19,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1602424598, now seen corresponding path program 2 times [2024-11-06 22:49:19,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 22:49:19,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705552693] [2024-11-06 22:49:19,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 22:49:19,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 22:49:19,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:49:19,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-06 22:49:19,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:49:19,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-06 22:49:19,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:49:19,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-06 22:49:19,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:49:19,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-06 22:49:19,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:49:19,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-06 22:49:19,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:49:19,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-06 22:49:19,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:49:19,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-06 22:49:19,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:49:19,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-06 22:49:19,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:49:19,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-06 22:49:19,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:49:19,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-06 22:49:19,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:49:19,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-06 22:49:19,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:49:19,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-06 22:49:19,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:49:19,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-06 22:49:19,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:49:19,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-06 22:49:19,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:49:19,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-06 22:49:19,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:49:19,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-06 22:49:19,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:49:19,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-06 22:49:19,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:49:19,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-06 22:49:19,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:49:19,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-06 22:49:19,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:49:19,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-06 22:49:19,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:49:19,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-06 22:49:19,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:49:19,366 INFO L134 CoverageAnalysis]: Checked inductivity of 938 backedges. 42 proven. 56 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-06 22:49:19,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 22:49:19,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705552693] [2024-11-06 22:49:19,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705552693] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 22:49:19,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1565816785] [2024-11-06 22:49:19,367 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-06 22:49:19,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 22:49:19,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 22:49:19,369 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 22:49:19,370 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-06 22:49:19,428 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-06 22:49:19,428 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-06 22:49:19,429 INFO L255 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-06 22:49:19,431 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 22:49:19,537 INFO L134 CoverageAnalysis]: Checked inductivity of 938 backedges. 120 proven. 656 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2024-11-06 22:49:19,538 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-06 22:49:19,668 INFO L134 CoverageAnalysis]: Checked inductivity of 938 backedges. 42 proven. 56 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-06 22:49:19,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1565816785] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-06 22:49:19,668 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-06 22:49:19,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 8] total 14 [2024-11-06 22:49:19,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640261027] [2024-11-06 22:49:19,668 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-06 22:49:19,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-06 22:49:19,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 22:49:19,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-06 22:49:19,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2024-11-06 22:49:19,670 INFO L87 Difference]: Start difference. First operand 121 states and 130 transitions. Second operand has 14 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 14 states have internal predecessors, (52), 9 states have call successors, (63), 6 states have call predecessors, (63), 6 states have return successors, (62), 9 states have call predecessors, (62), 9 states have call successors, (62) [2024-11-06 22:49:19,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 22:49:19,985 INFO L93 Difference]: Finished difference Result 387 states and 415 transitions. [2024-11-06 22:49:19,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-06 22:49:19,985 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 14 states have internal predecessors, (52), 9 states have call successors, (63), 6 states have call predecessors, (63), 6 states have return successors, (62), 9 states have call predecessors, (62), 9 states have call successors, (62) Word has length 125 [2024-11-06 22:49:19,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 22:49:19,987 INFO L225 Difference]: With dead ends: 387 [2024-11-06 22:49:19,987 INFO L226 Difference]: Without dead ends: 361 [2024-11-06 22:49:19,987 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=184, Invalid=322, Unknown=0, NotChecked=0, Total=506 [2024-11-06 22:49:19,988 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 122 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-06 22:49:19,988 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 133 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-06 22:49:19,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2024-11-06 22:49:20,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 284. [2024-11-06 22:49:20,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 172 states have (on average 1.052325581395349) internal successors, (181), 179 states have internal predecessors, (181), 66 states have call successors, (66), 46 states have call predecessors, (66), 45 states have return successors, (64), 58 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-06 22:49:20,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 311 transitions. [2024-11-06 22:49:20,040 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 311 transitions. Word has length 125 [2024-11-06 22:49:20,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 22:49:20,041 INFO L471 AbstractCegarLoop]: Abstraction has 284 states and 311 transitions. [2024-11-06 22:49:20,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 14 states have internal predecessors, (52), 9 states have call successors, (63), 6 states have call predecessors, (63), 6 states have return successors, (62), 9 states have call predecessors, (62), 9 states have call successors, (62) [2024-11-06 22:49:20,041 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 311 transitions. [2024-11-06 22:49:20,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-06 22:49:20,041 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 22:49:20,042 INFO L215 NwaCegarLoop]: trace histogram [24, 23, 23, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 22:49:20,055 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-06 22:49:20,242 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-06 22:49:20,242 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 22:49:20,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 22:49:20,242 INFO L85 PathProgramCache]: Analyzing trace with hash 36255119, now seen corresponding path program 1 times [2024-11-06 22:49:20,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 22:49:20,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338315462] [2024-11-06 22:49:20,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 22:49:20,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 22:49:20,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-06 22:49:20,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [291662684] [2024-11-06 22:49:20,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 22:49:20,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 22:49:20,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 22:49:20,270 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 22:49:20,271 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-06 22:49:20,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:49:20,329 INFO L255 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-11-06 22:49:20,331 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 22:49:20,562 INFO L134 CoverageAnalysis]: Checked inductivity of 1106 backedges. 104 proven. 116 refuted. 0 times theorem prover too weak. 886 trivial. 0 not checked. [2024-11-06 22:49:20,562 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-06 22:49:20,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 22:49:20,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338315462] [2024-11-06 22:49:20,711 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-06 22:49:20,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [291662684] [2024-11-06 22:49:20,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [291662684] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 22:49:20,711 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-06 22:49:20,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-06 22:49:20,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090813755] [2024-11-06 22:49:20,712 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-06 22:49:20,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-06 22:49:20,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 22:49:20,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-06 22:49:20,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-06 22:49:20,712 INFO L87 Difference]: Start difference. First operand 284 states and 311 transitions. Second operand has 10 states, 10 states have (on average 2.3) internal successors, (23), 9 states have internal predecessors, (23), 4 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2024-11-06 22:49:20,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 22:49:20,950 INFO L93 Difference]: Finished difference Result 295 states and 322 transitions. [2024-11-06 22:49:20,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-06 22:49:20,951 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 9 states have internal predecessors, (23), 4 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) Word has length 133 [2024-11-06 22:49:20,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 22:49:20,952 INFO L225 Difference]: With dead ends: 295 [2024-11-06 22:49:20,952 INFO L226 Difference]: Without dead ends: 287 [2024-11-06 22:49:20,952 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-11-06 22:49:20,953 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 4 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-06 22:49:20,953 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 241 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-06 22:49:20,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2024-11-06 22:49:21,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 287. [2024-11-06 22:49:21,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 175 states have (on average 1.0457142857142858) internal successors, (183), 181 states have internal predecessors, (183), 65 states have call successors, (65), 47 states have call predecessors, (65), 46 states have return successors, (63), 58 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-06 22:49:21,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 311 transitions. [2024-11-06 22:49:21,011 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 311 transitions. Word has length 133 [2024-11-06 22:49:21,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 22:49:21,012 INFO L471 AbstractCegarLoop]: Abstraction has 287 states and 311 transitions. [2024-11-06 22:49:21,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 9 states have internal predecessors, (23), 4 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2024-11-06 22:49:21,012 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 311 transitions. [2024-11-06 22:49:21,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-06 22:49:21,013 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 22:49:21,013 INFO L215 NwaCegarLoop]: trace histogram [29, 28, 28, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 22:49:21,026 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-06 22:49:21,213 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-06 22:49:21,214 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 22:49:21,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 22:49:21,214 INFO L85 PathProgramCache]: Analyzing trace with hash 1802004917, now seen corresponding path program 2 times [2024-11-06 22:49:21,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 22:49:21,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818919786] [2024-11-06 22:49:21,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 22:49:21,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 22:49:21,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-06 22:49:21,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [716056474] [2024-11-06 22:49:21,257 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-06 22:49:21,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 22:49:21,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 22:49:21,260 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 22:49:21,261 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-06 22:49:21,329 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-06 22:49:21,329 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-06 22:49:21,331 INFO L255 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 51 conjuncts are in the unsatisfiable core [2024-11-06 22:49:21,333 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 22:49:21,615 INFO L134 CoverageAnalysis]: Checked inductivity of 1648 backedges. 115 proven. 102 refuted. 0 times theorem prover too weak. 1431 trivial. 0 not checked. [2024-11-06 22:49:21,615 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-06 22:49:59,056 INFO L134 CoverageAnalysis]: Checked inductivity of 1648 backedges. 115 proven. 78 refuted. 24 times theorem prover too weak. 1431 trivial. 0 not checked. [2024-11-06 22:49:59,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 22:49:59,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818919786] [2024-11-06 22:49:59,056 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-06 22:49:59,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [716056474] [2024-11-06 22:49:59,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [716056474] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-06 22:49:59,056 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-06 22:49:59,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 20 [2024-11-06 22:49:59,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237436543] [2024-11-06 22:49:59,056 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-06 22:49:59,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-06 22:49:59,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 22:49:59,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-06 22:49:59,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=293, Unknown=7, NotChecked=0, Total=380 [2024-11-06 22:49:59,057 INFO L87 Difference]: Start difference. First operand 287 states and 311 transitions. Second operand has 20 states, 20 states have (on average 2.3) internal successors, (46), 19 states have internal predecessors, (46), 12 states have call successors, (58), 3 states have call predecessors, (58), 2 states have return successors, (56), 10 states have call predecessors, (56), 12 states have call successors, (56) [2024-11-06 22:50:26,467 WARN L286 SmtUtils]: Spent 19.79s on a formula simplification. DAG size of input: 92 DAG size of output: 62 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-06 22:50:46,620 WARN L286 SmtUtils]: Spent 13.39s on a formula simplification. DAG size of input: 93 DAG size of output: 63 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-06 22:50:48,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 22:50:48,087 INFO L93 Difference]: Finished difference Result 296 states and 321 transitions. [2024-11-06 22:50:48,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-06 22:50:48,087 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.3) internal successors, (46), 19 states have internal predecessors, (46), 12 states have call successors, (58), 3 states have call predecessors, (58), 2 states have return successors, (56), 10 states have call predecessors, (56), 12 states have call successors, (56) Word has length 161 [2024-11-06 22:50:48,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 22:50:48,088 INFO L225 Difference]: With dead ends: 296 [2024-11-06 22:50:48,088 INFO L226 Difference]: Without dead ends: 257 [2024-11-06 22:50:48,089 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 302 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 81.9s TimeCoverageRelationStatistics Valid=115, Invalid=383, Unknown=8, NotChecked=0, Total=506 [2024-11-06 22:50:48,089 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 15 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-06 22:50:48,089 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 427 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-06 22:50:48,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2024-11-06 22:50:48,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 257. [2024-11-06 22:50:48,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 161 states have (on average 1.0124223602484472) internal successors, (163), 162 states have internal predecessors, (163), 53 states have call successors, (53), 42 states have call predecessors, (53), 42 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-06 22:50:48,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 268 transitions. [2024-11-06 22:50:48,147 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 268 transitions. Word has length 161 [2024-11-06 22:50:48,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 22:50:48,148 INFO L471 AbstractCegarLoop]: Abstraction has 257 states and 268 transitions. [2024-11-06 22:50:48,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.3) internal successors, (46), 19 states have internal predecessors, (46), 12 states have call successors, (58), 3 states have call predecessors, (58), 2 states have return successors, (56), 10 states have call predecessors, (56), 12 states have call successors, (56) [2024-11-06 22:50:48,148 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 268 transitions. [2024-11-06 22:50:48,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2024-11-06 22:50:48,150 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 22:50:48,150 INFO L215 NwaCegarLoop]: trace histogram [52, 51, 51, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 22:50:48,163 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-06 22:50:48,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,13 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 22:50:48,351 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 22:50:48,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 22:50:48,351 INFO L85 PathProgramCache]: Analyzing trace with hash -1951591730, now seen corresponding path program 3 times [2024-11-06 22:50:48,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 22:50:48,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721448762] [2024-11-06 22:50:48,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 22:50:48,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 22:50:48,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:48,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-06 22:50:48,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:48,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-06 22:50:48,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:48,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-06 22:50:48,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:48,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-06 22:50:48,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:48,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-06 22:50:48,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:48,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-06 22:50:48,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:48,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-06 22:50:48,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:48,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-06 22:50:48,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:48,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-06 22:50:48,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:48,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-06 22:50:48,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:48,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-06 22:50:48,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:48,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-06 22:50:48,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:48,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-06 22:50:48,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:48,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-06 22:50:48,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:48,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-06 22:50:48,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:48,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-06 22:50:48,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:48,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-06 22:50:48,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:48,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-06 22:50:48,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:48,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-06 22:50:48,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:48,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-06 22:50:48,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:48,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-06 22:50:48,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:48,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-06 22:50:48,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:48,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-06 22:50:48,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:48,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-06 22:50:48,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:48,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-06 22:50:48,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:48,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-06 22:50:48,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:48,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-06 22:50:48,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:48,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-06 22:50:48,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:48,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-11-06 22:50:48,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:48,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-06 22:50:48,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:48,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-11-06 22:50:48,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:48,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-11-06 22:50:48,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:48,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-11-06 22:50:48,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:48,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-11-06 22:50:48,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:48,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2024-11-06 22:50:48,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:48,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2024-11-06 22:50:48,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:48,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2024-11-06 22:50:48,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:48,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2024-11-06 22:50:48,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:48,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2024-11-06 22:50:48,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:48,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2024-11-06 22:50:48,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:48,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2024-11-06 22:50:48,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:48,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2024-11-06 22:50:48,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:49,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2024-11-06 22:50:49,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:49,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2024-11-06 22:50:49,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:49,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2024-11-06 22:50:49,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:49,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2024-11-06 22:50:49,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:49,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2024-11-06 22:50:49,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:49,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2024-11-06 22:50:49,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:49,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2024-11-06 22:50:49,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:49,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2024-11-06 22:50:49,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:49,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2024-11-06 22:50:49,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:49,022 INFO L134 CoverageAnalysis]: Checked inductivity of 5582 backedges. 102 proven. 380 refuted. 0 times theorem prover too weak. 5100 trivial. 0 not checked. [2024-11-06 22:50:49,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 22:50:49,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721448762] [2024-11-06 22:50:49,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721448762] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 22:50:49,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [485573501] [2024-11-06 22:50:49,022 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-06 22:50:49,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 22:50:49,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 22:50:49,026 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 22:50:49,027 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-06 22:50:49,176 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 31 check-sat command(s) [2024-11-06 22:50:49,176 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-06 22:50:49,178 INFO L255 TraceCheckSpWp]: Trace formula consists of 565 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-06 22:50:49,181 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 22:50:49,391 INFO L134 CoverageAnalysis]: Checked inductivity of 5582 backedges. 300 proven. 4880 refuted. 0 times theorem prover too weak. 402 trivial. 0 not checked. [2024-11-06 22:50:49,391 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-06 22:50:49,686 INFO L134 CoverageAnalysis]: Checked inductivity of 5582 backedges. 102 proven. 380 refuted. 0 times theorem prover too weak. 5100 trivial. 0 not checked. [2024-11-06 22:50:49,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [485573501] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-06 22:50:49,686 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-06 22:50:49,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 14] total 26 [2024-11-06 22:50:49,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525141553] [2024-11-06 22:50:49,687 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-06 22:50:49,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-06 22:50:49,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 22:50:49,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-06 22:50:49,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=281, Invalid=369, Unknown=0, NotChecked=0, Total=650 [2024-11-06 22:50:49,688 INFO L87 Difference]: Start difference. First operand 257 states and 268 transitions. Second operand has 26 states, 26 states have (on average 4.076923076923077) internal successors, (106), 26 states have internal predecessors, (106), 21 states have call successors, (153), 12 states have call predecessors, (153), 12 states have return successors, (152), 21 states have call predecessors, (152), 21 states have call successors, (152) [2024-11-06 22:50:50,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 22:50:50,349 INFO L93 Difference]: Finished difference Result 558 states and 593 transitions. [2024-11-06 22:50:50,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-11-06 22:50:50,349 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.076923076923077) internal successors, (106), 26 states have internal predecessors, (106), 21 states have call successors, (153), 12 states have call predecessors, (153), 12 states have return successors, (152), 21 states have call predecessors, (152), 21 states have call successors, (152) Word has length 293 [2024-11-06 22:50:50,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 22:50:50,353 INFO L225 Difference]: With dead ends: 558 [2024-11-06 22:50:50,353 INFO L226 Difference]: Without dead ends: 545 [2024-11-06 22:50:50,354 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 720 GetRequests, 675 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 286 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=796, Invalid=1366, Unknown=0, NotChecked=0, Total=2162 [2024-11-06 22:50:50,354 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 146 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-06 22:50:50,354 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 168 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-06 22:50:50,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2024-11-06 22:50:50,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 545. [2024-11-06 22:50:50,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 341 states have (on average 1.0058651026392962) internal successors, (343), 342 states have internal predecessors, (343), 113 states have call successors, (113), 90 states have call predecessors, (113), 90 states have return successors, (112), 112 states have call predecessors, (112), 112 states have call successors, (112) [2024-11-06 22:50:50,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 568 transitions. [2024-11-06 22:50:50,484 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 568 transitions. Word has length 293 [2024-11-06 22:50:50,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 22:50:50,485 INFO L471 AbstractCegarLoop]: Abstraction has 545 states and 568 transitions. [2024-11-06 22:50:50,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 4.076923076923077) internal successors, (106), 26 states have internal predecessors, (106), 21 states have call successors, (153), 12 states have call predecessors, (153), 12 states have return successors, (152), 21 states have call predecessors, (152), 21 states have call successors, (152) [2024-11-06 22:50:50,485 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 568 transitions. [2024-11-06 22:50:50,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 630 [2024-11-06 22:50:50,493 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 22:50:50,494 INFO L215 NwaCegarLoop]: trace histogram [112, 111, 111, 23, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 22:50:50,506 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-06 22:50:50,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,14 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 22:50:50,694 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 22:50:50,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 22:50:50,695 INFO L85 PathProgramCache]: Analyzing trace with hash 1604221590, now seen corresponding path program 4 times [2024-11-06 22:50:50,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 22:50:50,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848443018] [2024-11-06 22:50:50,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 22:50:50,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 22:50:50,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:51,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-06 22:50:51,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:51,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-06 22:50:51,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:51,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-06 22:50:51,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:51,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-06 22:50:51,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:51,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-06 22:50:51,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:51,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-06 22:50:51,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:51,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-06 22:50:51,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:51,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-06 22:50:51,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:51,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-06 22:50:51,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:51,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-06 22:50:51,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:51,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-06 22:50:51,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:51,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-06 22:50:52,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-06 22:50:52,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-06 22:50:52,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-06 22:50:52,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-06 22:50:52,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-06 22:50:52,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-06 22:50:52,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-06 22:50:52,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-06 22:50:52,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-06 22:50:52,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-06 22:50:52,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-06 22:50:52,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-06 22:50:52,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-06 22:50:52,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-06 22:50:52,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-06 22:50:52,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-06 22:50:52,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-11-06 22:50:52,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-06 22:50:52,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-11-06 22:50:52,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-11-06 22:50:52,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-11-06 22:50:52,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-11-06 22:50:52,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2024-11-06 22:50:52,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2024-11-06 22:50:52,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2024-11-06 22:50:52,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2024-11-06 22:50:52,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2024-11-06 22:50:52,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2024-11-06 22:50:52,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2024-11-06 22:50:52,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2024-11-06 22:50:52,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2024-11-06 22:50:52,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2024-11-06 22:50:52,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2024-11-06 22:50:52,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2024-11-06 22:50:52,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2024-11-06 22:50:52,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2024-11-06 22:50:52,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2024-11-06 22:50:52,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2024-11-06 22:50:52,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2024-11-06 22:50:52,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2024-11-06 22:50:52,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2024-11-06 22:50:52,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2024-11-06 22:50:52,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2024-11-06 22:50:52,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2024-11-06 22:50:52,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2024-11-06 22:50:52,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2024-11-06 22:50:52,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2024-11-06 22:50:52,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2024-11-06 22:50:52,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2024-11-06 22:50:52,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2024-11-06 22:50:52,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2024-11-06 22:50:52,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2024-11-06 22:50:52,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2024-11-06 22:50:52,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2024-11-06 22:50:52,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2024-11-06 22:50:52,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2024-11-06 22:50:52,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2024-11-06 22:50:52,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 388 [2024-11-06 22:50:52,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 396 [2024-11-06 22:50:52,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 401 [2024-11-06 22:50:52,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2024-11-06 22:50:52,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 411 [2024-11-06 22:50:52,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2024-11-06 22:50:52,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 424 [2024-11-06 22:50:52,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 429 [2024-11-06 22:50:52,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 434 [2024-11-06 22:50:52,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2024-11-06 22:50:52,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 444 [2024-11-06 22:50:52,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 452 [2024-11-06 22:50:52,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 457 [2024-11-06 22:50:52,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2024-11-06 22:50:52,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 467 [2024-11-06 22:50:52,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2024-11-06 22:50:52,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 480 [2024-11-06 22:50:52,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 485 [2024-11-06 22:50:52,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 490 [2024-11-06 22:50:52,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2024-11-06 22:50:52,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 500 [2024-11-06 22:50:52,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 508 [2024-11-06 22:50:52,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 513 [2024-11-06 22:50:52,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 518 [2024-11-06 22:50:52,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 523 [2024-11-06 22:50:52,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 528 [2024-11-06 22:50:52,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 536 [2024-11-06 22:50:52,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 541 [2024-11-06 22:50:52,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 546 [2024-11-06 22:50:52,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 551 [2024-11-06 22:50:52,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 556 [2024-11-06 22:50:52,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 564 [2024-11-06 22:50:52,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 569 [2024-11-06 22:50:52,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 574 [2024-11-06 22:50:52,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 579 [2024-11-06 22:50:52,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 584 [2024-11-06 22:50:52,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 592 [2024-11-06 22:50:52,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 597 [2024-11-06 22:50:52,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2024-11-06 22:50:52,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2024-11-06 22:50:52,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 612 [2024-11-06 22:50:52,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 620 [2024-11-06 22:50:52,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 22:50:52,197 INFO L134 CoverageAnalysis]: Checked inductivity of 26534 backedges. 222 proven. 1892 refuted. 0 times theorem prover too weak. 24420 trivial. 0 not checked. [2024-11-06 22:50:52,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 22:50:52,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848443018] [2024-11-06 22:50:52,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848443018] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 22:50:52,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1513030187] [2024-11-06 22:50:52,197 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-06 22:50:52,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 22:50:52,197 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 22:50:52,199 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 22:50:52,201 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-06 22:50:52,508 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-06 22:50:52,509 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-06 22:50:52,514 INFO L255 TraceCheckSpWp]: Trace formula consists of 1354 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-11-06 22:50:52,528 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 22:50:52,968 INFO L134 CoverageAnalysis]: Checked inductivity of 26534 backedges. 660 proven. 24992 refuted. 0 times theorem prover too weak. 882 trivial. 0 not checked. [2024-11-06 22:50:52,968 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-06 22:50:53,798 INFO L134 CoverageAnalysis]: Checked inductivity of 26534 backedges. 222 proven. 1892 refuted. 0 times theorem prover too weak. 24420 trivial. 0 not checked. [2024-11-06 22:50:53,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1513030187] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-06 22:50:53,798 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-06 22:50:53,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 25, 26] total 50 [2024-11-06 22:50:53,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507592546] [2024-11-06 22:50:53,799 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-06 22:50:53,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2024-11-06 22:50:53,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 22:50:53,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2024-11-06 22:50:53,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1133, Invalid=1317, Unknown=0, NotChecked=0, Total=2450 [2024-11-06 22:50:53,802 INFO L87 Difference]: Start difference. First operand 545 states and 568 transitions. Second operand has 50 states, 50 states have (on average 4.28) internal successors, (214), 50 states have internal predecessors, (214), 45 states have call successors, (333), 24 states have call predecessors, (333), 24 states have return successors, (332), 45 states have call predecessors, (332), 45 states have call successors, (332)