./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem13_label29.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/eca-rers2012/Problem13_label29.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', '8f598b1db7f2b2cd1017a328f20419506fd47df23c7e336ea67891b462314c30'] 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/eca-rers2012/Problem13_label29.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 8f598b1db7f2b2cd1017a328f20419506fd47df23c7e336ea67891b462314c30 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-06 19:48:56,199 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-06 19:48:56,286 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-06 19:48:56,292 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-06 19:48:56,293 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-06 19:48:56,307 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-06 19:48:56,308 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-06 19:48:56,308 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-06 19:48:56,308 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-06 19:48:56,309 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-06 19:48:56,309 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-06 19:48:56,309 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-06 19:48:56,309 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-06 19:48:56,309 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-06 19:48:56,309 INFO L153 SettingsManager]: * Use SBE=true [2024-11-06 19:48:56,309 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-06 19:48:56,310 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-06 19:48:56,310 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-06 19:48:56,310 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-06 19:48:56,310 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-06 19:48:56,310 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-06 19:48:56,310 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-06 19:48:56,310 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-06 19:48:56,310 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-06 19:48:56,310 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-06 19:48:56,310 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-06 19:48:56,311 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-06 19:48:56,311 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-06 19:48:56,311 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-06 19:48:56,311 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-06 19:48:56,311 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-06 19:48:56,311 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-06 19:48:56,311 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 19:48:56,311 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-06 19:48:56,311 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-06 19:48:56,312 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-06 19:48:56,312 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-06 19:48:56,312 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-06 19:48:56,312 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-06 19:48:56,312 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-06 19:48:56,312 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-06 19:48:56,312 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-06 19:48:56,312 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 -> 8f598b1db7f2b2cd1017a328f20419506fd47df23c7e336ea67891b462314c30 [2024-11-06 19:48:56,535 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-06 19:48:56,543 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-06 19:48:56,547 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-06 19:48:56,548 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-06 19:48:56,548 INFO L274 PluginConnector]: CDTParser initialized [2024-11-06 19:48:56,550 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem13_label29.c [2024-11-06 19:48:57,852 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-06 19:48:58,318 INFO L384 CDTParser]: Found 1 translation units. [2024-11-06 19:48:58,320 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem13_label29.c [2024-11-06 19:48:58,345 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/eab5b6a63/51c8e6cbb1574ad88db1332dc608447b/FLAG28d70d02c [2024-11-06 19:48:58,408 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/eab5b6a63/51c8e6cbb1574ad88db1332dc608447b [2024-11-06 19:48:58,410 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-06 19:48:58,411 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-06 19:48:58,412 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-06 19:48:58,412 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-06 19:48:58,414 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-06 19:48:58,415 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 07:48:58" (1/1) ... [2024-11-06 19:48:58,417 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f395170 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:48:58, skipping insertion in model container [2024-11-06 19:48:58,417 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 07:48:58" (1/1) ... [2024-11-06 19:48:58,516 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-06 19:48:58,684 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/eca-rers2012/Problem13_label29.c[2333,2346] [2024-11-06 19:48:59,235 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 19:48:59,240 INFO L200 MainTranslator]: Completed pre-run [2024-11-06 19:48:59,253 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/eca-rers2012/Problem13_label29.c[2333,2346] [2024-11-06 19:48:59,558 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 19:48:59,575 INFO L204 MainTranslator]: Completed translation [2024-11-06 19:48:59,576 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:48:59 WrapperNode [2024-11-06 19:48:59,576 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-06 19:48:59,577 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-06 19:48:59,577 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-06 19:48:59,577 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-06 19:48:59,580 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:48:59" (1/1) ... [2024-11-06 19:48:59,627 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:48:59" (1/1) ... [2024-11-06 19:49:00,096 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 5587 [2024-11-06 19:49:00,097 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-06 19:49:00,097 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-06 19:49:00,097 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-06 19:49:00,097 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-06 19:49:00,103 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:48:59" (1/1) ... [2024-11-06 19:49:00,104 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:48:59" (1/1) ... [2024-11-06 19:49:00,151 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:48:59" (1/1) ... [2024-11-06 19:49:00,375 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 19:49:00,375 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:48:59" (1/1) ... [2024-11-06 19:49:00,375 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:48:59" (1/1) ... [2024-11-06 19:49:00,593 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:48:59" (1/1) ... [2024-11-06 19:49:00,631 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:48:59" (1/1) ... [2024-11-06 19:49:00,712 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:48:59" (1/1) ... [2024-11-06 19:49:00,751 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:48:59" (1/1) ... [2024-11-06 19:49:00,823 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-06 19:49:00,824 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-06 19:49:00,824 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-06 19:49:00,824 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-06 19:49:00,826 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:48:59" (1/1) ... [2024-11-06 19:49:00,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 19:49:00,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 19:49:00,861 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 19:49:00,869 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 19:49:00,889 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-06 19:49:00,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-06 19:49:00,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-06 19:49:00,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-06 19:49:00,946 INFO L238 CfgBuilder]: Building ICFG [2024-11-06 19:49:00,948 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-06 19:49:05,576 INFO L? ?]: Removed 738 outVars from TransFormulas that were not future-live. [2024-11-06 19:49:05,577 INFO L287 CfgBuilder]: Performing block encoding [2024-11-06 19:49:05,607 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-06 19:49:05,607 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-06 19:49:05,608 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:49:05 BoogieIcfgContainer [2024-11-06 19:49:05,608 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-06 19:49:05,609 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-06 19:49:05,609 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-06 19:49:05,616 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-06 19:49:05,617 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 07:48:58" (1/3) ... [2024-11-06 19:49:05,617 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7eb7afff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 07:49:05, skipping insertion in model container [2024-11-06 19:49:05,617 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:48:59" (2/3) ... [2024-11-06 19:49:05,617 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7eb7afff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 07:49:05, skipping insertion in model container [2024-11-06 19:49:05,617 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:49:05" (3/3) ... [2024-11-06 19:49:05,618 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label29.c [2024-11-06 19:49:05,638 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-06 19:49:05,641 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-06 19:49:05,729 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-06 19:49:05,744 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;@1c5d8dc4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-06 19:49:05,744 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-06 19:49:05,754 INFO L276 IsEmpty]: Start isEmpty. Operand has 1098 states, 1096 states have (on average 1.8275547445255473) internal successors, (2003), 1097 states have internal predecessors, (2003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:49:05,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-06 19:49:05,757 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:49:05,757 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:49:05,758 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:49:05,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:49:05,760 INFO L85 PathProgramCache]: Analyzing trace with hash -1414013846, now seen corresponding path program 1 times [2024-11-06 19:49:05,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:49:05,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346847182] [2024-11-06 19:49:05,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:49:05,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:49:05,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:49:05,951 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 19:49:05,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:49:05,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346847182] [2024-11-06 19:49:05,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346847182] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:49:05,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:49:05,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 19:49:05,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112235056] [2024-11-06 19:49:05,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:49:05,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:49:05,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:49:05,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:49:05,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:49:05,975 INFO L87 Difference]: Start difference. First operand has 1098 states, 1096 states have (on average 1.8275547445255473) internal successors, (2003), 1097 states have internal predecessors, (2003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:49:09,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:49:09,419 INFO L93 Difference]: Finished difference Result 3082 states and 5689 transitions. [2024-11-06 19:49:09,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:49:09,420 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-11-06 19:49:09,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:49:09,434 INFO L225 Difference]: With dead ends: 3082 [2024-11-06 19:49:09,434 INFO L226 Difference]: Without dead ends: 1899 [2024-11-06 19:49:09,438 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:49:09,439 INFO L432 NwaCegarLoop]: 470 mSDtfsCounter, 1025 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 2955 mSolverCounterSat, 599 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1025 SdHoareTripleChecker+Valid, 641 SdHoareTripleChecker+Invalid, 3554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 599 IncrementalHoareTripleChecker+Valid, 2955 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-06 19:49:09,440 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1025 Valid, 641 Invalid, 3554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [599 Valid, 2955 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-06 19:49:09,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1899 states. [2024-11-06 19:49:09,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1899 to 1894. [2024-11-06 19:49:09,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1894 states, 1893 states have (on average 1.7374537770734284) internal successors, (3289), 1893 states have internal predecessors, (3289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:49:09,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1894 states to 1894 states and 3289 transitions. [2024-11-06 19:49:09,534 INFO L78 Accepts]: Start accepts. Automaton has 1894 states and 3289 transitions. Word has length 14 [2024-11-06 19:49:09,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:49:09,534 INFO L471 AbstractCegarLoop]: Abstraction has 1894 states and 3289 transitions. [2024-11-06 19:49:09,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:49:09,535 INFO L276 IsEmpty]: Start isEmpty. Operand 1894 states and 3289 transitions. [2024-11-06 19:49:09,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-06 19:49:09,536 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:49:09,536 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:49:09,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-06 19:49:09,536 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:49:09,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:49:09,537 INFO L85 PathProgramCache]: Analyzing trace with hash 107877298, now seen corresponding path program 1 times [2024-11-06 19:49:09,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:49:09,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935137206] [2024-11-06 19:49:09,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:49:09,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:49:09,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:49:09,796 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 19:49:09,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:49:09,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935137206] [2024-11-06 19:49:09,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935137206] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:49:09,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:49:09,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 19:49:09,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240987846] [2024-11-06 19:49:09,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:49:09,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:49:09,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:49:09,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:49:09,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:49:09,798 INFO L87 Difference]: Start difference. First operand 1894 states and 3289 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 2 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:49:12,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:49:12,732 INFO L93 Difference]: Finished difference Result 5384 states and 9441 transitions. [2024-11-06 19:49:12,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:49:12,732 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 2 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2024-11-06 19:49:12,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:49:12,742 INFO L225 Difference]: With dead ends: 5384 [2024-11-06 19:49:12,742 INFO L226 Difference]: Without dead ends: 3492 [2024-11-06 19:49:12,744 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:49:12,744 INFO L432 NwaCegarLoop]: 860 mSDtfsCounter, 922 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 2310 mSolverCounterSat, 879 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 922 SdHoareTripleChecker+Valid, 1013 SdHoareTripleChecker+Invalid, 3189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 879 IncrementalHoareTripleChecker+Valid, 2310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-06 19:49:12,745 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [922 Valid, 1013 Invalid, 3189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [879 Valid, 2310 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-06 19:49:12,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3492 states. [2024-11-06 19:49:12,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3492 to 3491. [2024-11-06 19:49:12,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3491 states, 3490 states have (on average 1.5383954154727795) internal successors, (5369), 3490 states have internal predecessors, (5369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:49:12,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3491 states to 3491 states and 5369 transitions. [2024-11-06 19:49:12,782 INFO L78 Accepts]: Start accepts. Automaton has 3491 states and 5369 transitions. Word has length 79 [2024-11-06 19:49:12,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:49:12,782 INFO L471 AbstractCegarLoop]: Abstraction has 3491 states and 5369 transitions. [2024-11-06 19:49:12,782 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 2 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:49:12,783 INFO L276 IsEmpty]: Start isEmpty. Operand 3491 states and 5369 transitions. [2024-11-06 19:49:12,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-06 19:49:12,784 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:49:12,784 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:49:12,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-06 19:49:12,784 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:49:12,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:49:12,785 INFO L85 PathProgramCache]: Analyzing trace with hash -845828371, now seen corresponding path program 1 times [2024-11-06 19:49:12,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:49:12,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727055477] [2024-11-06 19:49:12,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:49:12,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:49:12,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:49:12,907 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 19:49:12,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:49:12,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727055477] [2024-11-06 19:49:12,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727055477] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:49:12,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:49:12,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 19:49:12,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334434850] [2024-11-06 19:49:12,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:49:12,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:49:12,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:49:12,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:49:12,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:49:12,912 INFO L87 Difference]: Start difference. First operand 3491 states and 5369 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:49:15,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:49:15,734 INFO L93 Difference]: Finished difference Result 10169 states and 15700 transitions. [2024-11-06 19:49:15,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:49:15,734 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-11-06 19:49:15,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:49:15,751 INFO L225 Difference]: With dead ends: 10169 [2024-11-06 19:49:15,752 INFO L226 Difference]: Without dead ends: 6680 [2024-11-06 19:49:15,756 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:49:15,757 INFO L432 NwaCegarLoop]: 714 mSDtfsCounter, 977 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 2533 mSolverCounterSat, 775 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 977 SdHoareTripleChecker+Valid, 847 SdHoareTripleChecker+Invalid, 3308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 775 IncrementalHoareTripleChecker+Valid, 2533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-06 19:49:15,757 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [977 Valid, 847 Invalid, 3308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [775 Valid, 2533 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-06 19:49:15,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6680 states. [2024-11-06 19:49:15,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6680 to 6669. [2024-11-06 19:49:15,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6669 states, 6668 states have (on average 1.375224955008998) internal successors, (9170), 6668 states have internal predecessors, (9170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:49:15,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6669 states to 6669 states and 9170 transitions. [2024-11-06 19:49:15,836 INFO L78 Accepts]: Start accepts. Automaton has 6669 states and 9170 transitions. Word has length 81 [2024-11-06 19:49:15,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:49:15,837 INFO L471 AbstractCegarLoop]: Abstraction has 6669 states and 9170 transitions. [2024-11-06 19:49:15,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:49:15,839 INFO L276 IsEmpty]: Start isEmpty. Operand 6669 states and 9170 transitions. [2024-11-06 19:49:15,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-06 19:49:15,841 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:49:15,841 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:49:15,841 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-06 19:49:15,842 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:49:15,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:49:15,844 INFO L85 PathProgramCache]: Analyzing trace with hash -477490145, now seen corresponding path program 1 times [2024-11-06 19:49:15,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:49:15,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439736474] [2024-11-06 19:49:15,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:49:15,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:49:15,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:49:16,062 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 19:49:16,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:49:16,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439736474] [2024-11-06 19:49:16,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439736474] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:49:16,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:49:16,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:49:16,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511812256] [2024-11-06 19:49:16,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:49:16,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:49:16,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:49:16,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:49:16,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:49:16,066 INFO L87 Difference]: Start difference. First operand 6669 states and 9170 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:49:19,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:49:19,234 INFO L93 Difference]: Finished difference Result 19629 states and 27006 transitions. [2024-11-06 19:49:19,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:49:19,234 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2024-11-06 19:49:19,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:49:19,264 INFO L225 Difference]: With dead ends: 19629 [2024-11-06 19:49:19,265 INFO L226 Difference]: Without dead ends: 12962 [2024-11-06 19:49:19,274 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:49:19,275 INFO L432 NwaCegarLoop]: 1861 mSDtfsCounter, 920 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 2485 mSolverCounterSat, 807 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 920 SdHoareTripleChecker+Valid, 2001 SdHoareTripleChecker+Invalid, 3292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 807 IncrementalHoareTripleChecker+Valid, 2485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-06 19:49:19,275 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [920 Valid, 2001 Invalid, 3292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [807 Valid, 2485 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-06 19:49:19,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12962 states. [2024-11-06 19:49:19,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12962 to 12957. [2024-11-06 19:49:19,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12957 states, 12956 states have (on average 1.272537820314912) internal successors, (16487), 12956 states have internal predecessors, (16487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:49:19,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12957 states to 12957 states and 16487 transitions. [2024-11-06 19:49:19,427 INFO L78 Accepts]: Start accepts. Automaton has 12957 states and 16487 transitions. Word has length 125 [2024-11-06 19:49:19,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:49:19,428 INFO L471 AbstractCegarLoop]: Abstraction has 12957 states and 16487 transitions. [2024-11-06 19:49:19,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:49:19,428 INFO L276 IsEmpty]: Start isEmpty. Operand 12957 states and 16487 transitions. [2024-11-06 19:49:19,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-06 19:49:19,430 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:49:19,430 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:49:19,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-06 19:49:19,430 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:49:19,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:49:19,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1845724562, now seen corresponding path program 1 times [2024-11-06 19:49:19,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:49:19,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359552605] [2024-11-06 19:49:19,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:49:19,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:49:19,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:49:19,646 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 19:49:19,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:49:19,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359552605] [2024-11-06 19:49:19,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359552605] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:49:19,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:49:19,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 19:49:19,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874390419] [2024-11-06 19:49:19,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:49:19,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:49:19,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:49:19,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:49:19,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:49:19,648 INFO L87 Difference]: Start difference. First operand 12957 states and 16487 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 2 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:49:22,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:49:22,006 INFO L93 Difference]: Finished difference Result 22765 states and 29540 transitions. [2024-11-06 19:49:22,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:49:22,010 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 2 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2024-11-06 19:49:22,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:49:22,044 INFO L225 Difference]: With dead ends: 22765 [2024-11-06 19:49:22,044 INFO L226 Difference]: Without dead ends: 12179 [2024-11-06 19:49:22,054 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:49:22,054 INFO L432 NwaCegarLoop]: 1013 mSDtfsCounter, 728 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 2700 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 728 SdHoareTripleChecker+Valid, 1192 SdHoareTripleChecker+Invalid, 2704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-06 19:49:22,055 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [728 Valid, 1192 Invalid, 2704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2700 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-06 19:49:22,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12179 states. [2024-11-06 19:49:22,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12179 to 12170. [2024-11-06 19:49:22,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12170 states, 12169 states have (on average 1.2884378338400855) internal successors, (15679), 12169 states have internal predecessors, (15679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:49:22,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12170 states to 12170 states and 15679 transitions. [2024-11-06 19:49:22,251 INFO L78 Accepts]: Start accepts. Automaton has 12170 states and 15679 transitions. Word has length 130 [2024-11-06 19:49:22,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:49:22,251 INFO L471 AbstractCegarLoop]: Abstraction has 12170 states and 15679 transitions. [2024-11-06 19:49:22,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 2 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:49:22,252 INFO L276 IsEmpty]: Start isEmpty. Operand 12170 states and 15679 transitions. [2024-11-06 19:49:22,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-06 19:49:22,256 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:49:22,256 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:49:22,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-06 19:49:22,257 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:49:22,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:49:22,257 INFO L85 PathProgramCache]: Analyzing trace with hash -2024292359, now seen corresponding path program 1 times [2024-11-06 19:49:22,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:49:22,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104167467] [2024-11-06 19:49:22,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:49:22,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:49:22,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:49:22,436 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-06 19:49:22,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:49:22,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104167467] [2024-11-06 19:49:22,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104167467] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:49:22,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:49:22,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 19:49:22,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679749840] [2024-11-06 19:49:22,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:49:22,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:49:22,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:49:22,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:49:22,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:49:22,439 INFO L87 Difference]: Start difference. First operand 12170 states and 15679 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:49:25,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:49:25,331 INFO L93 Difference]: Finished difference Result 35376 states and 45656 transitions. [2024-11-06 19:49:25,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:49:25,331 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 154 [2024-11-06 19:49:25,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:49:25,387 INFO L225 Difference]: With dead ends: 35376 [2024-11-06 19:49:25,387 INFO L226 Difference]: Without dead ends: 23208 [2024-11-06 19:49:25,400 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:49:25,402 INFO L432 NwaCegarLoop]: 1090 mSDtfsCounter, 780 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 2534 mSolverCounterSat, 771 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 780 SdHoareTripleChecker+Valid, 1236 SdHoareTripleChecker+Invalid, 3305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 771 IncrementalHoareTripleChecker+Valid, 2534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-06 19:49:25,403 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [780 Valid, 1236 Invalid, 3305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [771 Valid, 2534 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-06 19:49:25,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23208 states. [2024-11-06 19:49:25,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23208 to 22404. [2024-11-06 19:49:25,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22404 states, 22403 states have (on average 1.1934115966611614) internal successors, (26736), 22403 states have internal predecessors, (26736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:49:25,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22404 states to 22404 states and 26736 transitions. [2024-11-06 19:49:25,668 INFO L78 Accepts]: Start accepts. Automaton has 22404 states and 26736 transitions. Word has length 154 [2024-11-06 19:49:25,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:49:25,669 INFO L471 AbstractCegarLoop]: Abstraction has 22404 states and 26736 transitions. [2024-11-06 19:49:25,669 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:49:25,669 INFO L276 IsEmpty]: Start isEmpty. Operand 22404 states and 26736 transitions. [2024-11-06 19:49:25,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2024-11-06 19:49:25,672 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:49:25,673 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:49:25,673 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-06 19:49:25,673 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:49:25,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:49:25,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1157253765, now seen corresponding path program 1 times [2024-11-06 19:49:25,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:49:25,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386697474] [2024-11-06 19:49:25,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:49:25,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:49:25,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:49:26,004 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 149 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-11-06 19:49:26,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:49:26,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386697474] [2024-11-06 19:49:26,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386697474] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:49:26,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:49:26,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 19:49:26,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219780591] [2024-11-06 19:49:26,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:49:26,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:49:26,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:49:26,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:49:26,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:49:26,007 INFO L87 Difference]: Start difference. First operand 22404 states and 26736 transitions. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 2 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:49:28,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:49:28,210 INFO L93 Difference]: Finished difference Result 44019 states and 52673 transitions. [2024-11-06 19:49:28,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:49:28,211 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 2 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 243 [2024-11-06 19:49:28,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:49:28,264 INFO L225 Difference]: With dead ends: 44019 [2024-11-06 19:49:28,264 INFO L226 Difference]: Without dead ends: 22404 [2024-11-06 19:49:28,296 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:49:28,300 INFO L432 NwaCegarLoop]: 1067 mSDtfsCounter, 700 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 2504 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 700 SdHoareTripleChecker+Valid, 1196 SdHoareTripleChecker+Invalid, 2508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-06 19:49:28,301 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [700 Valid, 1196 Invalid, 2508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2504 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-06 19:49:28,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22404 states. [2024-11-06 19:49:28,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22404 to 22404. [2024-11-06 19:49:28,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22404 states, 22403 states have (on average 1.1931884122662144) internal successors, (26731), 22403 states have internal predecessors, (26731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:49:28,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22404 states to 22404 states and 26731 transitions. [2024-11-06 19:49:28,580 INFO L78 Accepts]: Start accepts. Automaton has 22404 states and 26731 transitions. Word has length 243 [2024-11-06 19:49:28,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:49:28,580 INFO L471 AbstractCegarLoop]: Abstraction has 22404 states and 26731 transitions. [2024-11-06 19:49:28,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 2 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:49:28,580 INFO L276 IsEmpty]: Start isEmpty. Operand 22404 states and 26731 transitions. [2024-11-06 19:49:28,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2024-11-06 19:49:28,585 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:49:28,586 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:49:28,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-06 19:49:28,586 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:49:28,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:49:28,586 INFO L85 PathProgramCache]: Analyzing trace with hash 1131533274, now seen corresponding path program 1 times [2024-11-06 19:49:28,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:49:28,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996366961] [2024-11-06 19:49:28,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:49:28,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:49:28,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:49:28,728 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 228 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-06 19:49:28,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:49:28,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996366961] [2024-11-06 19:49:28,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996366961] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:49:28,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:49:28,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:49:28,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071135362] [2024-11-06 19:49:28,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:49:28,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:49:28,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:49:28,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:49:28,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:49:28,730 INFO L87 Difference]: Start difference. First operand 22404 states and 26731 transitions. Second operand has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:49:31,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:49:31,746 INFO L93 Difference]: Finished difference Result 55046 states and 66948 transitions. [2024-11-06 19:49:31,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:49:31,747 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 250 [2024-11-06 19:49:31,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:49:31,781 INFO L225 Difference]: With dead ends: 55046 [2024-11-06 19:49:31,782 INFO L226 Difference]: Without dead ends: 33431 [2024-11-06 19:49:31,798 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:49:31,798 INFO L432 NwaCegarLoop]: 810 mSDtfsCounter, 882 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 2384 mSolverCounterSat, 903 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 882 SdHoareTripleChecker+Valid, 928 SdHoareTripleChecker+Invalid, 3287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 903 IncrementalHoareTripleChecker+Valid, 2384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-06 19:49:31,798 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [882 Valid, 928 Invalid, 3287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [903 Valid, 2384 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-06 19:49:31,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33431 states. [2024-11-06 19:49:31,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33431 to 32635. [2024-11-06 19:49:32,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32635 states, 32634 states have (on average 1.176135318992462) internal successors, (38382), 32634 states have internal predecessors, (38382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:49:32,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32635 states to 32635 states and 38382 transitions. [2024-11-06 19:49:32,213 INFO L78 Accepts]: Start accepts. Automaton has 32635 states and 38382 transitions. Word has length 250 [2024-11-06 19:49:32,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:49:32,213 INFO L471 AbstractCegarLoop]: Abstraction has 32635 states and 38382 transitions. [2024-11-06 19:49:32,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:49:32,213 INFO L276 IsEmpty]: Start isEmpty. Operand 32635 states and 38382 transitions. [2024-11-06 19:49:32,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2024-11-06 19:49:32,216 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:49:32,217 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:49:32,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-06 19:49:32,217 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:49:32,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:49:32,219 INFO L85 PathProgramCache]: Analyzing trace with hash -187004170, now seen corresponding path program 1 times [2024-11-06 19:49:32,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:49:32,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537119841] [2024-11-06 19:49:32,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:49:32,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:49:32,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:49:32,373 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-11-06 19:49:32,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:49:32,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537119841] [2024-11-06 19:49:32,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537119841] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:49:32,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:49:32,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:49:32,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005807839] [2024-11-06 19:49:32,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:49:32,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:49:32,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:49:32,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:49:32,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:49:32,376 INFO L87 Difference]: Start difference. First operand 32635 states and 38382 transitions. Second operand has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:49:35,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:49:35,226 INFO L93 Difference]: Finished difference Result 76294 states and 91193 transitions. [2024-11-06 19:49:35,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:49:35,226 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 305 [2024-11-06 19:49:35,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:49:35,279 INFO L225 Difference]: With dead ends: 76294 [2024-11-06 19:49:35,280 INFO L226 Difference]: Without dead ends: 44448 [2024-11-06 19:49:35,303 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:49:35,304 INFO L432 NwaCegarLoop]: 1806 mSDtfsCounter, 850 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 2550 mSolverCounterSat, 723 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 850 SdHoareTripleChecker+Valid, 1950 SdHoareTripleChecker+Invalid, 3273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 723 IncrementalHoareTripleChecker+Valid, 2550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-06 19:49:35,304 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [850 Valid, 1950 Invalid, 3273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [723 Valid, 2550 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-06 19:49:35,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44448 states. [2024-11-06 19:49:35,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44448 to 43657. [2024-11-06 19:49:35,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43657 states, 43656 states have (on average 1.151663001649258) internal successors, (50277), 43656 states have internal predecessors, (50277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:49:35,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43657 states to 43657 states and 50277 transitions. [2024-11-06 19:49:35,648 INFO L78 Accepts]: Start accepts. Automaton has 43657 states and 50277 transitions. Word has length 305 [2024-11-06 19:49:35,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:49:35,648 INFO L471 AbstractCegarLoop]: Abstraction has 43657 states and 50277 transitions. [2024-11-06 19:49:35,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:49:35,648 INFO L276 IsEmpty]: Start isEmpty. Operand 43657 states and 50277 transitions. [2024-11-06 19:49:35,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2024-11-06 19:49:35,651 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:49:35,651 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:49:35,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-06 19:49:35,652 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:49:35,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:49:35,652 INFO L85 PathProgramCache]: Analyzing trace with hash -773060605, now seen corresponding path program 1 times [2024-11-06 19:49:35,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:49:35,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46070318] [2024-11-06 19:49:35,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:49:35,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:49:35,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:49:36,927 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 152 proven. 113 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-06 19:49:36,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:49:36,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46070318] [2024-11-06 19:49:36,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46070318] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 19:49:36,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [546969151] [2024-11-06 19:49:36,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:49:36,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 19:49:36,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 19:49:36,934 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 19:49:36,939 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 19:49:37,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:49:37,067 INFO L255 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-06 19:49:37,074 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 19:49:37,161 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 164 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2024-11-06 19:49:37,161 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 19:49:37,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [546969151] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:49:37,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 19:49:37,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2024-11-06 19:49:37,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504752491] [2024-11-06 19:49:37,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:49:37,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:49:37,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:49:37,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:49:37,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-06 19:49:37,163 INFO L87 Difference]: Start difference. First operand 43657 states and 50277 transitions. Second operand has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:49:40,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:49:40,096 INFO L93 Difference]: Finished difference Result 86516 states and 99752 transitions. [2024-11-06 19:49:40,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:49:40,097 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 320 [2024-11-06 19:49:40,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:49:40,141 INFO L225 Difference]: With dead ends: 86516 [2024-11-06 19:49:40,142 INFO L226 Difference]: Without dead ends: 43648 [2024-11-06 19:49:40,167 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 319 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-06 19:49:40,168 INFO L432 NwaCegarLoop]: 689 mSDtfsCounter, 1076 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 2395 mSolverCounterSat, 527 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1076 SdHoareTripleChecker+Valid, 818 SdHoareTripleChecker+Invalid, 2922 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 527 IncrementalHoareTripleChecker+Valid, 2395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-06 19:49:40,168 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1076 Valid, 818 Invalid, 2922 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [527 Valid, 2395 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-06 19:49:40,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43648 states. [2024-11-06 19:49:40,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43648 to 43647. [2024-11-06 19:49:40,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43647 states, 43646 states have (on average 1.1132749851074555) internal successors, (48590), 43646 states have internal predecessors, (48590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:49:40,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43647 states to 43647 states and 48590 transitions. [2024-11-06 19:49:40,532 INFO L78 Accepts]: Start accepts. Automaton has 43647 states and 48590 transitions. Word has length 320 [2024-11-06 19:49:40,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:49:40,532 INFO L471 AbstractCegarLoop]: Abstraction has 43647 states and 48590 transitions. [2024-11-06 19:49:40,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:49:40,533 INFO L276 IsEmpty]: Start isEmpty. Operand 43647 states and 48590 transitions. [2024-11-06 19:49:40,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2024-11-06 19:49:40,536 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:49:40,536 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:49:40,549 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 19:49:40,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-06 19:49:40,738 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:49:40,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:49:40,739 INFO L85 PathProgramCache]: Analyzing trace with hash 1427385796, now seen corresponding path program 1 times [2024-11-06 19:49:40,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:49:40,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374605047] [2024-11-06 19:49:40,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:49:40,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:49:40,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:49:41,109 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 433 trivial. 0 not checked. [2024-11-06 19:49:41,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:49:41,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374605047] [2024-11-06 19:49:41,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374605047] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:49:41,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:49:41,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:49:41,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710956445] [2024-11-06 19:49:41,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:49:41,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:49:41,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:49:41,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:49:41,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:49:41,112 INFO L87 Difference]: Start difference. First operand 43647 states and 48590 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:49:43,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:49:43,616 INFO L93 Difference]: Finished difference Result 86503 states and 96385 transitions. [2024-11-06 19:49:43,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:49:43,617 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 339 [2024-11-06 19:49:43,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:49:43,660 INFO L225 Difference]: With dead ends: 86503 [2024-11-06 19:49:43,660 INFO L226 Difference]: Without dead ends: 43645 [2024-11-06 19:49:43,686 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:49:43,686 INFO L432 NwaCegarLoop]: 1342 mSDtfsCounter, 1188 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 2463 mSolverCounterSat, 444 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1188 SdHoareTripleChecker+Valid, 1421 SdHoareTripleChecker+Invalid, 2907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 444 IncrementalHoareTripleChecker+Valid, 2463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-06 19:49:43,687 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1188 Valid, 1421 Invalid, 2907 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [444 Valid, 2463 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-06 19:49:43,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43645 states. [2024-11-06 19:49:44,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43645 to 43644. [2024-11-06 19:49:44,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43644 states, 43643 states have (on average 1.086588914602571) internal successors, (47422), 43643 states have internal predecessors, (47422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:49:44,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43644 states to 43644 states and 47422 transitions. [2024-11-06 19:49:44,090 INFO L78 Accepts]: Start accepts. Automaton has 43644 states and 47422 transitions. Word has length 339 [2024-11-06 19:49:44,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:49:44,090 INFO L471 AbstractCegarLoop]: Abstraction has 43644 states and 47422 transitions. [2024-11-06 19:49:44,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:49:44,090 INFO L276 IsEmpty]: Start isEmpty. Operand 43644 states and 47422 transitions. [2024-11-06 19:49:44,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2024-11-06 19:49:44,094 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:49:44,094 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:49:44,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-06 19:49:44,094 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:49:44,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:49:44,095 INFO L85 PathProgramCache]: Analyzing trace with hash 1320971521, now seen corresponding path program 1 times [2024-11-06 19:49:44,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:49:44,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768218305] [2024-11-06 19:49:44,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:49:44,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:49:44,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:49:44,242 INFO L134 CoverageAnalysis]: Checked inductivity of 503 backedges. 414 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2024-11-06 19:49:44,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:49:44,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768218305] [2024-11-06 19:49:44,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768218305] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:49:44,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:49:44,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:49:44,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933661361] [2024-11-06 19:49:44,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:49:44,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-06 19:49:44,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:49:44,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-06 19:49:44,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-06 19:49:44,246 INFO L87 Difference]: Start difference. First operand 43644 states and 47422 transitions. Second operand has 4 states, 4 states have (on average 71.75) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:49:49,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:49:49,799 INFO L93 Difference]: Finished difference Result 150458 states and 163809 transitions. [2024-11-06 19:49:49,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-06 19:49:49,799 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 71.75) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 362 [2024-11-06 19:49:49,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:49:49,903 INFO L225 Difference]: With dead ends: 150458 [2024-11-06 19:49:49,903 INFO L226 Difference]: Without dead ends: 107603 [2024-11-06 19:49:49,933 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-06 19:49:49,933 INFO L432 NwaCegarLoop]: 565 mSDtfsCounter, 1712 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 6004 mSolverCounterSat, 1095 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1712 SdHoareTripleChecker+Valid, 753 SdHoareTripleChecker+Invalid, 7099 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1095 IncrementalHoareTripleChecker+Valid, 6004 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2024-11-06 19:49:49,934 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1712 Valid, 753 Invalid, 7099 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1095 Valid, 6004 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2024-11-06 19:49:49,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107603 states. [2024-11-06 19:49:50,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107603 to 104326. [2024-11-06 19:49:50,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104326 states, 104325 states have (on average 1.0794344596213754) internal successors, (112612), 104325 states have internal predecessors, (112612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:49:50,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104326 states to 104326 states and 112612 transitions. [2024-11-06 19:49:50,939 INFO L78 Accepts]: Start accepts. Automaton has 104326 states and 112612 transitions. Word has length 362 [2024-11-06 19:49:50,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:49:50,939 INFO L471 AbstractCegarLoop]: Abstraction has 104326 states and 112612 transitions. [2024-11-06 19:49:50,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 71.75) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:49:50,939 INFO L276 IsEmpty]: Start isEmpty. Operand 104326 states and 112612 transitions. [2024-11-06 19:49:50,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 406 [2024-11-06 19:49:50,948 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:49:50,948 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:49:50,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-06 19:49:50,948 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:49:50,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:49:50,952 INFO L85 PathProgramCache]: Analyzing trace with hash 308905835, now seen corresponding path program 1 times [2024-11-06 19:49:50,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:49:50,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478469293] [2024-11-06 19:49:50,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:49:50,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:49:51,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:49:51,891 INFO L134 CoverageAnalysis]: Checked inductivity of 523 backedges. 324 proven. 110 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2024-11-06 19:49:51,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:49:51,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478469293] [2024-11-06 19:49:51,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478469293] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 19:49:51,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [572522271] [2024-11-06 19:49:51,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:49:51,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 19:49:51,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 19:49:51,896 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 19:49:51,898 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 19:49:52,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:49:52,075 INFO L255 TraceCheckSpWp]: Trace formula consists of 571 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-06 19:49:52,084 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 19:49:52,900 INFO L134 CoverageAnalysis]: Checked inductivity of 523 backedges. 321 proven. 0 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2024-11-06 19:49:52,900 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 19:49:52,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [572522271] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:49:52,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 19:49:52,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-06 19:49:52,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905037497] [2024-11-06 19:49:52,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:49:52,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:49:52,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:49:52,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:49:52,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-06 19:49:52,901 INFO L87 Difference]: Start difference. First operand 104326 states and 112612 transitions. Second operand has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 2 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:49:55,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:49:55,865 INFO L93 Difference]: Finished difference Result 202358 states and 218743 transitions. [2024-11-06 19:49:55,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:49:55,866 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 2 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 405 [2024-11-06 19:49:55,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:49:55,995 INFO L225 Difference]: With dead ends: 202358 [2024-11-06 19:49:55,996 INFO L226 Difference]: Without dead ends: 108272 [2024-11-06 19:49:56,057 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 409 GetRequests, 404 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-06 19:49:56,058 INFO L432 NwaCegarLoop]: 1033 mSDtfsCounter, 683 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 2463 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 683 SdHoareTripleChecker+Valid, 1167 SdHoareTripleChecker+Invalid, 2575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 2463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-06 19:49:56,058 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [683 Valid, 1167 Invalid, 2575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 2463 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-06 19:49:56,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108272 states. [2024-11-06 19:49:57,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108272 to 106688. [2024-11-06 19:49:57,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106688 states, 106687 states have (on average 1.0717519472850487) internal successors, (114342), 106687 states have internal predecessors, (114342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:49:58,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106688 states to 106688 states and 114342 transitions. [2024-11-06 19:49:58,030 INFO L78 Accepts]: Start accepts. Automaton has 106688 states and 114342 transitions. Word has length 405 [2024-11-06 19:49:58,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:49:58,030 INFO L471 AbstractCegarLoop]: Abstraction has 106688 states and 114342 transitions. [2024-11-06 19:49:58,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 2 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:49:58,038 INFO L276 IsEmpty]: Start isEmpty. Operand 106688 states and 114342 transitions. [2024-11-06 19:49:58,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 452 [2024-11-06 19:49:58,051 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:49:58,051 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:49:58,086 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 19:49:58,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 19:49:58,253 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:49:58,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:49:58,253 INFO L85 PathProgramCache]: Analyzing trace with hash -397722901, now seen corresponding path program 1 times [2024-11-06 19:49:58,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:49:58,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847333110] [2024-11-06 19:49:58,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:49:58,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:49:58,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:49:58,663 INFO L134 CoverageAnalysis]: Checked inductivity of 841 backedges. 664 proven. 0 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2024-11-06 19:49:58,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:49:58,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847333110] [2024-11-06 19:49:58,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847333110] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:49:58,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:49:58,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:49:58,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076831300] [2024-11-06 19:49:58,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:49:58,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:49:58,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:49:58,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:49:58,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:49:58,665 INFO L87 Difference]: Start difference. First operand 106688 states and 114342 transitions. Second operand has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:50:01,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:50:01,540 INFO L93 Difference]: Finished difference Result 214166 states and 229485 transitions. [2024-11-06 19:50:01,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:50:01,541 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 451 [2024-11-06 19:50:01,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:50:01,693 INFO L225 Difference]: With dead ends: 214166 [2024-11-06 19:50:01,693 INFO L226 Difference]: Without dead ends: 108267 [2024-11-06 19:50:01,757 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:50:01,758 INFO L432 NwaCegarLoop]: 1351 mSDtfsCounter, 938 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 2396 mSolverCounterSat, 583 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 938 SdHoareTripleChecker+Valid, 1436 SdHoareTripleChecker+Invalid, 2979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 583 IncrementalHoareTripleChecker+Valid, 2396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-06 19:50:01,761 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [938 Valid, 1436 Invalid, 2979 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [583 Valid, 2396 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-06 19:50:01,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108267 states. [2024-11-06 19:50:02,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108267 to 106678. [2024-11-06 19:50:03,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106678 states, 106677 states have (on average 1.0612034459161768) internal successors, (113206), 106677 states have internal predecessors, (113206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:50:03,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106678 states to 106678 states and 113206 transitions. [2024-11-06 19:50:03,124 INFO L78 Accepts]: Start accepts. Automaton has 106678 states and 113206 transitions. Word has length 451 [2024-11-06 19:50:03,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:50:03,125 INFO L471 AbstractCegarLoop]: Abstraction has 106678 states and 113206 transitions. [2024-11-06 19:50:03,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:50:03,125 INFO L276 IsEmpty]: Start isEmpty. Operand 106678 states and 113206 transitions. [2024-11-06 19:50:03,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 476 [2024-11-06 19:50:03,131 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:50:03,131 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:50:03,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-06 19:50:03,131 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:50:03,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:50:03,131 INFO L85 PathProgramCache]: Analyzing trace with hash 1185337965, now seen corresponding path program 1 times [2024-11-06 19:50:03,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:50:03,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864737098] [2024-11-06 19:50:03,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:50:03,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:50:03,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:50:03,542 INFO L134 CoverageAnalysis]: Checked inductivity of 808 backedges. 635 proven. 0 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2024-11-06 19:50:03,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:50:03,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864737098] [2024-11-06 19:50:03,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864737098] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:50:03,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:50:03,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:50:03,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222082569] [2024-11-06 19:50:03,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:50:03,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:50:03,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:50:03,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:50:03,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:50:03,544 INFO L87 Difference]: Start difference. First operand 106678 states and 113206 transitions. Second operand has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:50:06,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:50:06,958 INFO L93 Difference]: Finished difference Result 237756 states and 253279 transitions. [2024-11-06 19:50:06,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:50:06,958 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 475 [2024-11-06 19:50:06,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:50:07,092 INFO L225 Difference]: With dead ends: 237756 [2024-11-06 19:50:07,092 INFO L226 Difference]: Without dead ends: 131867 [2024-11-06 19:50:07,144 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:50:07,144 INFO L432 NwaCegarLoop]: 666 mSDtfsCounter, 876 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 2344 mSolverCounterSat, 739 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 876 SdHoareTripleChecker+Valid, 745 SdHoareTripleChecker+Invalid, 3083 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 739 IncrementalHoareTripleChecker+Valid, 2344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-06 19:50:07,145 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [876 Valid, 745 Invalid, 3083 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [739 Valid, 2344 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-06 19:50:07,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131867 states. [2024-11-06 19:50:08,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131867 to 130274. [2024-11-06 19:50:08,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130274 states, 130273 states have (on average 1.059306226155842) internal successors, (137999), 130273 states have internal predecessors, (137999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:50:08,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130274 states to 130274 states and 137999 transitions. [2024-11-06 19:50:08,517 INFO L78 Accepts]: Start accepts. Automaton has 130274 states and 137999 transitions. Word has length 475 [2024-11-06 19:50:08,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:50:08,518 INFO L471 AbstractCegarLoop]: Abstraction has 130274 states and 137999 transitions. [2024-11-06 19:50:08,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:50:08,518 INFO L276 IsEmpty]: Start isEmpty. Operand 130274 states and 137999 transitions. [2024-11-06 19:50:08,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 493 [2024-11-06 19:50:08,526 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:50:08,526 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:50:08,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-06 19:50:08,527 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:50:08,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:50:08,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1649171128, now seen corresponding path program 1 times [2024-11-06 19:50:08,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:50:08,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143906986] [2024-11-06 19:50:08,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:50:08,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:50:08,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:50:08,745 INFO L134 CoverageAnalysis]: Checked inductivity of 841 backedges. 306 proven. 0 refuted. 0 times theorem prover too weak. 535 trivial. 0 not checked. [2024-11-06 19:50:08,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:50:08,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143906986] [2024-11-06 19:50:08,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143906986] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:50:08,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:50:08,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 19:50:08,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048242250] [2024-11-06 19:50:08,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:50:08,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:50:08,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:50:08,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:50:08,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:50:08,747 INFO L87 Difference]: Start difference. First operand 130274 states and 137999 transitions. Second operand has 3 states, 3 states have (on average 72.0) internal successors, (216), 2 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:50:10,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:50:10,799 INFO L93 Difference]: Finished difference Result 245571 states and 260677 transitions. [2024-11-06 19:50:10,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:50:10,799 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.0) internal successors, (216), 2 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 492 [2024-11-06 19:50:10,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:50:10,906 INFO L225 Difference]: With dead ends: 245571 [2024-11-06 19:50:10,907 INFO L226 Difference]: Without dead ends: 129471 [2024-11-06 19:50:10,937 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:50:10,937 INFO L432 NwaCegarLoop]: 294 mSDtfsCounter, 1610 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1463 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1610 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 1475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-06 19:50:10,938 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1610 Valid, 294 Invalid, 1475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1463 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-06 19:50:11,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129471 states. [2024-11-06 19:50:11,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129471 to 129470. [2024-11-06 19:50:11,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129470 states, 129469 states have (on average 1.0591261228556643) internal successors, (137124), 129469 states have internal predecessors, (137124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:50:12,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129470 states to 129470 states and 137124 transitions. [2024-11-06 19:50:12,182 INFO L78 Accepts]: Start accepts. Automaton has 129470 states and 137124 transitions. Word has length 492 [2024-11-06 19:50:12,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:50:12,183 INFO L471 AbstractCegarLoop]: Abstraction has 129470 states and 137124 transitions. [2024-11-06 19:50:12,183 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.0) internal successors, (216), 2 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:50:12,183 INFO L276 IsEmpty]: Start isEmpty. Operand 129470 states and 137124 transitions. [2024-11-06 19:50:12,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 495 [2024-11-06 19:50:12,191 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:50:12,191 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:50:12,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-06 19:50:12,192 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:50:12,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:50:12,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1113896334, now seen corresponding path program 1 times [2024-11-06 19:50:12,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:50:12,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850064419] [2024-11-06 19:50:12,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:50:12,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:50:12,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:50:12,471 INFO L134 CoverageAnalysis]: Checked inductivity of 896 backedges. 612 proven. 0 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2024-11-06 19:50:12,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:50:12,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850064419] [2024-11-06 19:50:12,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850064419] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:50:12,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:50:12,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:50:12,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10810097] [2024-11-06 19:50:12,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:50:12,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:50:12,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:50:12,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:50:12,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:50:12,477 INFO L87 Difference]: Start difference. First operand 129470 states and 137124 transitions. Second operand has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:50:15,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:50:15,363 INFO L93 Difference]: Finished difference Result 258954 states and 274249 transitions. [2024-11-06 19:50:15,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:50:15,363 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 494 [2024-11-06 19:50:15,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:50:15,501 INFO L225 Difference]: With dead ends: 258954 [2024-11-06 19:50:15,501 INFO L226 Difference]: Without dead ends: 128699 [2024-11-06 19:50:15,572 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:50:15,572 INFO L432 NwaCegarLoop]: 1661 mSDtfsCounter, 791 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 2438 mSolverCounterSat, 404 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 791 SdHoareTripleChecker+Valid, 1800 SdHoareTripleChecker+Invalid, 2842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 404 IncrementalHoareTripleChecker+Valid, 2438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-06 19:50:15,572 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [791 Valid, 1800 Invalid, 2842 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [404 Valid, 2438 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-06 19:50:15,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128699 states. [2024-11-06 19:50:16,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128699 to 127107. [2024-11-06 19:50:16,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127107 states, 127106 states have (on average 1.0460088430129184) internal successors, (132954), 127106 states have internal predecessors, (132954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:50:16,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127107 states to 127107 states and 132954 transitions. [2024-11-06 19:50:16,830 INFO L78 Accepts]: Start accepts. Automaton has 127107 states and 132954 transitions. Word has length 494 [2024-11-06 19:50:16,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:50:16,830 INFO L471 AbstractCegarLoop]: Abstraction has 127107 states and 132954 transitions. [2024-11-06 19:50:16,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:50:16,831 INFO L276 IsEmpty]: Start isEmpty. Operand 127107 states and 132954 transitions. [2024-11-06 19:50:16,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 504 [2024-11-06 19:50:16,836 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:50:16,836 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:50:16,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-06 19:50:16,837 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:50:16,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:50:16,837 INFO L85 PathProgramCache]: Analyzing trace with hash -711264652, now seen corresponding path program 1 times [2024-11-06 19:50:16,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:50:16,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046386730] [2024-11-06 19:50:16,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:50:16,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:50:16,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:50:17,050 INFO L134 CoverageAnalysis]: Checked inductivity of 816 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 757 trivial. 0 not checked. [2024-11-06 19:50:17,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:50:17,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046386730] [2024-11-06 19:50:17,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046386730] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:50:17,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:50:17,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:50:17,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850328900] [2024-11-06 19:50:17,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:50:17,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:50:17,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:50:17,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:50:17,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:50:17,051 INFO L87 Difference]: Start difference. First operand 127107 states and 132954 transitions. Second operand has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:50:20,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:50:20,968 INFO L93 Difference]: Finished difference Result 321244 states and 336605 transitions. [2024-11-06 19:50:20,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:50:20,969 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 503 [2024-11-06 19:50:20,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:50:21,186 INFO L225 Difference]: With dead ends: 321244 [2024-11-06 19:50:21,186 INFO L226 Difference]: Without dead ends: 194926 [2024-11-06 19:50:21,256 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:50:21,257 INFO L432 NwaCegarLoop]: 697 mSDtfsCounter, 951 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 2895 mSolverCounterSat, 531 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 951 SdHoareTripleChecker+Valid, 802 SdHoareTripleChecker+Invalid, 3426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 531 IncrementalHoareTripleChecker+Valid, 2895 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-06 19:50:21,257 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [951 Valid, 802 Invalid, 3426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [531 Valid, 2895 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-06 19:50:21,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194926 states. [2024-11-06 19:50:22,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194926 to 191670. [2024-11-06 19:50:23,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191670 states, 191669 states have (on average 1.0450203214917384) internal successors, (200298), 191669 states have internal predecessors, (200298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:50:23,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191670 states to 191670 states and 200298 transitions. [2024-11-06 19:50:23,183 INFO L78 Accepts]: Start accepts. Automaton has 191670 states and 200298 transitions. Word has length 503 [2024-11-06 19:50:23,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:50:23,183 INFO L471 AbstractCegarLoop]: Abstraction has 191670 states and 200298 transitions. [2024-11-06 19:50:23,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:50:23,184 INFO L276 IsEmpty]: Start isEmpty. Operand 191670 states and 200298 transitions. [2024-11-06 19:50:23,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 566 [2024-11-06 19:50:23,192 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:50:23,193 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:50:23,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-06 19:50:23,193 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:50:23,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:50:23,194 INFO L85 PathProgramCache]: Analyzing trace with hash -1749767836, now seen corresponding path program 1 times [2024-11-06 19:50:23,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:50:23,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737655205] [2024-11-06 19:50:23,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:50:23,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:50:23,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:50:23,701 INFO L134 CoverageAnalysis]: Checked inductivity of 1157 backedges. 834 proven. 0 refuted. 0 times theorem prover too weak. 323 trivial. 0 not checked. [2024-11-06 19:50:23,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:50:23,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737655205] [2024-11-06 19:50:23,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737655205] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:50:23,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:50:23,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:50:23,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364386060] [2024-11-06 19:50:23,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:50:23,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:50:23,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:50:23,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:50:23,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:50:23,703 INFO L87 Difference]: Start difference. First operand 191670 states and 200298 transitions. Second operand has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:50:27,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:50:27,407 INFO L93 Difference]: Finished difference Result 434528 states and 455277 transitions. [2024-11-06 19:50:27,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:50:27,408 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 565 [2024-11-06 19:50:27,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:50:27,692 INFO L225 Difference]: With dead ends: 434528 [2024-11-06 19:50:27,692 INFO L226 Difference]: Without dead ends: 258604 [2024-11-06 19:50:27,777 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:50:27,777 INFO L432 NwaCegarLoop]: 491 mSDtfsCounter, 1018 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 2397 mSolverCounterSat, 898 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1018 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 3295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 898 IncrementalHoareTripleChecker+Valid, 2397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-06 19:50:27,777 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1018 Valid, 568 Invalid, 3295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [898 Valid, 2397 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-06 19:50:27,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258604 states.