./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem01_label41.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/Problem01_label41.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', '91ebea43abc6271e81b3eed447826b716b76bbe82349fcd855bbd6d5636a25a9'] 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/Problem01_label41.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 91ebea43abc6271e81b3eed447826b716b76bbe82349fcd855bbd6d5636a25a9 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-06 18:54:14,080 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-06 18:54:14,184 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-06 18:54:14,189 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-06 18:54:14,189 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-06 18:54:14,208 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-06 18:54:14,209 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-06 18:54:14,209 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-06 18:54:14,209 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-06 18:54:14,210 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-06 18:54:14,210 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-06 18:54:14,210 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-06 18:54:14,210 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-06 18:54:14,211 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-06 18:54:14,211 INFO L153 SettingsManager]: * Use SBE=true [2024-11-06 18:54:14,211 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-06 18:54:14,211 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-06 18:54:14,211 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-06 18:54:14,211 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-06 18:54:14,211 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-06 18:54:14,211 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-06 18:54:14,211 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-06 18:54:14,211 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-06 18:54:14,212 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-06 18:54:14,212 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-06 18:54:14,212 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-06 18:54:14,212 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-06 18:54:14,212 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-06 18:54:14,212 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-06 18:54:14,212 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-06 18:54:14,213 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-06 18:54:14,213 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-06 18:54:14,213 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 18:54:14,213 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-06 18:54:14,213 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-06 18:54:14,213 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-06 18:54:14,213 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-06 18:54:14,213 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-06 18:54:14,214 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-06 18:54:14,214 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-06 18:54:14,214 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-06 18:54:14,214 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-06 18:54:14,214 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 -> 91ebea43abc6271e81b3eed447826b716b76bbe82349fcd855bbd6d5636a25a9 [2024-11-06 18:54:14,474 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-06 18:54:14,482 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-06 18:54:14,485 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-06 18:54:14,486 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-06 18:54:14,487 INFO L274 PluginConnector]: CDTParser initialized [2024-11-06 18:54:14,488 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem01_label41.c [2024-11-06 18:54:15,653 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-06 18:54:15,910 INFO L384 CDTParser]: Found 1 translation units. [2024-11-06 18:54:15,910 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem01_label41.c [2024-11-06 18:54:15,919 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/fed23fc15/6fb9e2a0bed84acd8d0263dad68acf83/FLAGf112b8059 [2024-11-06 18:54:16,212 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/fed23fc15/6fb9e2a0bed84acd8d0263dad68acf83 [2024-11-06 18:54:16,213 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-06 18:54:16,214 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-06 18:54:16,215 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-06 18:54:16,216 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-06 18:54:16,218 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-06 18:54:16,219 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 06:54:16" (1/1) ... [2024-11-06 18:54:16,220 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74e007f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:54:16, skipping insertion in model container [2024-11-06 18:54:16,220 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 06:54:16" (1/1) ... [2024-11-06 18:54:16,249 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-06 18:54:16,488 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/Problem01_label41.c[16127,16140] [2024-11-06 18:54:16,527 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 18:54:16,539 INFO L200 MainTranslator]: Completed pre-run [2024-11-06 18:54:16,605 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/Problem01_label41.c[16127,16140] [2024-11-06 18:54:16,626 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 18:54:16,642 INFO L204 MainTranslator]: Completed translation [2024-11-06 18:54:16,642 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:54:16 WrapperNode [2024-11-06 18:54:16,643 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-06 18:54:16,644 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-06 18:54:16,644 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-06 18:54:16,644 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-06 18:54:16,649 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:54:16" (1/1) ... [2024-11-06 18:54:16,664 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:54:16" (1/1) ... [2024-11-06 18:54:16,723 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 658 [2024-11-06 18:54:16,725 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-06 18:54:16,725 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-06 18:54:16,725 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-06 18:54:16,726 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-06 18:54:16,732 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:54:16" (1/1) ... [2024-11-06 18:54:16,733 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:54:16" (1/1) ... [2024-11-06 18:54:16,736 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:54:16" (1/1) ... [2024-11-06 18:54:16,763 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 18:54:16,763 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:54:16" (1/1) ... [2024-11-06 18:54:16,763 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:54:16" (1/1) ... [2024-11-06 18:54:16,784 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:54:16" (1/1) ... [2024-11-06 18:54:16,793 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:54:16" (1/1) ... [2024-11-06 18:54:16,800 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:54:16" (1/1) ... [2024-11-06 18:54:16,805 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:54:16" (1/1) ... [2024-11-06 18:54:16,812 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-06 18:54:16,813 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-06 18:54:16,815 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-06 18:54:16,815 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-06 18:54:16,816 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:54:16" (1/1) ... [2024-11-06 18:54:16,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 18:54:16,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 18:54:16,851 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 18:54:16,861 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 18:54:16,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-06 18:54:16,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-06 18:54:16,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-06 18:54:16,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-06 18:54:16,951 INFO L238 CfgBuilder]: Building ICFG [2024-11-06 18:54:16,953 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-06 18:54:17,664 INFO L? ?]: Removed 75 outVars from TransFormulas that were not future-live. [2024-11-06 18:54:17,664 INFO L287 CfgBuilder]: Performing block encoding [2024-11-06 18:54:17,675 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-06 18:54:17,675 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-06 18:54:17,675 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 06:54:17 BoogieIcfgContainer [2024-11-06 18:54:17,675 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-06 18:54:17,676 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-06 18:54:17,676 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-06 18:54:17,681 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-06 18:54:17,681 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 06:54:16" (1/3) ... [2024-11-06 18:54:17,682 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@295e0b16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 06:54:17, skipping insertion in model container [2024-11-06 18:54:17,682 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:54:16" (2/3) ... [2024-11-06 18:54:17,683 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@295e0b16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 06:54:17, skipping insertion in model container [2024-11-06 18:54:17,683 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 06:54:17" (3/3) ... [2024-11-06 18:54:17,684 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem01_label41.c [2024-11-06 18:54:17,694 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-06 18:54:17,694 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-06 18:54:17,737 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-06 18:54:17,746 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;@6f94dc85, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-06 18:54:17,746 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-06 18:54:17,751 INFO L276 IsEmpty]: Start isEmpty. Operand has 198 states, 196 states have (on average 1.6683673469387754) internal successors, (327), 197 states have internal predecessors, (327), 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 18:54:17,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-06 18:54:17,757 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:54:17,758 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 18:54:17,758 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:54:17,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:54:17,762 INFO L85 PathProgramCache]: Analyzing trace with hash 867355110, now seen corresponding path program 1 times [2024-11-06 18:54:17,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:54:17,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621934691] [2024-11-06 18:54:17,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:54:17,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:54:17,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:54:18,193 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 18:54:18,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:54:18,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621934691] [2024-11-06 18:54:18,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621934691] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 18:54:18,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 18:54:18,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 18:54:18,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141757511] [2024-11-06 18:54:18,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 18:54:18,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 18:54:18,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:54:18,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 18:54:18,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 18:54:18,220 INFO L87 Difference]: Start difference. First operand has 198 states, 196 states have (on average 1.6683673469387754) internal successors, (327), 197 states have internal predecessors, (327), 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 28.333333333333332) internal successors, (85), 2 states have internal predecessors, (85), 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 18:54:18,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:54:18,795 INFO L93 Difference]: Finished difference Result 528 states and 915 transitions. [2024-11-06 18:54:18,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 18:54:18,797 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 2 states have internal predecessors, (85), 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 85 [2024-11-06 18:54:18,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:54:18,806 INFO L225 Difference]: With dead ends: 528 [2024-11-06 18:54:18,808 INFO L226 Difference]: Without dead ends: 266 [2024-11-06 18:54:18,810 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 18:54:18,814 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 103 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-06 18:54:18,815 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 51 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-06 18:54:18,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2024-11-06 18:54:18,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2024-11-06 18:54:18,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 265 states have (on average 1.4566037735849056) internal successors, (386), 265 states have internal predecessors, (386), 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 18:54:18,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 386 transitions. [2024-11-06 18:54:18,863 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 386 transitions. Word has length 85 [2024-11-06 18:54:18,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:54:18,863 INFO L471 AbstractCegarLoop]: Abstraction has 266 states and 386 transitions. [2024-11-06 18:54:18,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 2 states have internal predecessors, (85), 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 18:54:18,864 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 386 transitions. [2024-11-06 18:54:18,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-06 18:54:18,867 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:54:18,867 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-06 18:54:18,867 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-06 18:54:18,867 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:54:18,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:54:18,868 INFO L85 PathProgramCache]: Analyzing trace with hash -1655802317, now seen corresponding path program 1 times [2024-11-06 18:54:18,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:54:18,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881492167] [2024-11-06 18:54:18,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:54:18,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:54:18,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:54:18,985 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 18:54:18,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:54:18,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881492167] [2024-11-06 18:54:18,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881492167] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 18:54:18,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 18:54:18,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 18:54:18,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838183937] [2024-11-06 18:54:18,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 18:54:18,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 18:54:18,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:54:18,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 18:54:18,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 18:54:18,988 INFO L87 Difference]: Start difference. First operand 266 states and 386 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 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 18:54:19,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:54:19,331 INFO L93 Difference]: Finished difference Result 792 states and 1153 transitions. [2024-11-06 18:54:19,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 18:54:19,331 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 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 91 [2024-11-06 18:54:19,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:54:19,334 INFO L225 Difference]: With dead ends: 792 [2024-11-06 18:54:19,334 INFO L226 Difference]: Without dead ends: 528 [2024-11-06 18:54:19,335 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 18:54:19,335 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 140 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-06 18:54:19,335 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 38 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-06 18:54:19,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2024-11-06 18:54:19,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 528. [2024-11-06 18:54:19,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 527 states have (on average 1.3776091081593929) internal successors, (726), 527 states have internal predecessors, (726), 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 18:54:19,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 726 transitions. [2024-11-06 18:54:19,350 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 726 transitions. Word has length 91 [2024-11-06 18:54:19,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:54:19,350 INFO L471 AbstractCegarLoop]: Abstraction has 528 states and 726 transitions. [2024-11-06 18:54:19,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 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 18:54:19,351 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 726 transitions. [2024-11-06 18:54:19,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-06 18:54:19,353 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:54:19,353 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 18:54:19,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-06 18:54:19,354 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:54:19,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:54:19,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1589093430, now seen corresponding path program 1 times [2024-11-06 18:54:19,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:54:19,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253050380] [2024-11-06 18:54:19,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:54:19,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:54:19,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:54:19,504 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 18:54:19,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:54:19,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253050380] [2024-11-06 18:54:19,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253050380] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 18:54:19,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 18:54:19,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 18:54:19,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227038209] [2024-11-06 18:54:19,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 18:54:19,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 18:54:19,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:54:19,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 18:54:19,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 18:54:19,507 INFO L87 Difference]: Start difference. First operand 528 states and 726 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 2 states have internal predecessors, (106), 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 18:54:19,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:54:19,881 INFO L93 Difference]: Finished difference Result 1578 states and 2173 transitions. [2024-11-06 18:54:19,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 18:54:19,882 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 2 states have internal predecessors, (106), 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 106 [2024-11-06 18:54:19,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:54:19,888 INFO L225 Difference]: With dead ends: 1578 [2024-11-06 18:54:19,888 INFO L226 Difference]: Without dead ends: 1052 [2024-11-06 18:54:19,890 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 18:54:19,892 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 132 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-06 18:54:19,892 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 37 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-06 18:54:19,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1052 states. [2024-11-06 18:54:19,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1052 to 1052. [2024-11-06 18:54:19,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1052 states, 1051 states have (on average 1.3092293054234063) internal successors, (1376), 1051 states have internal predecessors, (1376), 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 18:54:19,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1052 states to 1052 states and 1376 transitions. [2024-11-06 18:54:19,929 INFO L78 Accepts]: Start accepts. Automaton has 1052 states and 1376 transitions. Word has length 106 [2024-11-06 18:54:19,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:54:19,929 INFO L471 AbstractCegarLoop]: Abstraction has 1052 states and 1376 transitions. [2024-11-06 18:54:19,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 2 states have internal predecessors, (106), 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 18:54:19,933 INFO L276 IsEmpty]: Start isEmpty. Operand 1052 states and 1376 transitions. [2024-11-06 18:54:19,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-06 18:54:19,936 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:54:19,937 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:54:19,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-06 18:54:19,937 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:54:19,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:54:19,941 INFO L85 PathProgramCache]: Analyzing trace with hash 1915873080, now seen corresponding path program 1 times [2024-11-06 18:54:19,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:54:19,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951791556] [2024-11-06 18:54:19,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:54:19,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:54:19,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:54:20,082 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-06 18:54:20,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:54:20,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951791556] [2024-11-06 18:54:20,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951791556] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 18:54:20,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 18:54:20,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 18:54:20,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149658463] [2024-11-06 18:54:20,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 18:54:20,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 18:54:20,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:54:20,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 18:54:20,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 18:54:20,083 INFO L87 Difference]: Start difference. First operand 1052 states and 1376 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 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 18:54:20,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:54:20,565 INFO L93 Difference]: Finished difference Result 2495 states and 3288 transitions. [2024-11-06 18:54:20,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 18:54:20,566 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 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 119 [2024-11-06 18:54:20,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:54:20,574 INFO L225 Difference]: With dead ends: 2495 [2024-11-06 18:54:20,574 INFO L226 Difference]: Without dead ends: 1445 [2024-11-06 18:54:20,575 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 18:54:20,580 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 147 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-06 18:54:20,580 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 30 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-06 18:54:20,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1445 states. [2024-11-06 18:54:20,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1445 to 1052. [2024-11-06 18:54:20,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1052 states, 1051 states have (on average 1.3044719314938154) internal successors, (1371), 1051 states have internal predecessors, (1371), 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 18:54:20,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1052 states to 1052 states and 1371 transitions. [2024-11-06 18:54:20,619 INFO L78 Accepts]: Start accepts. Automaton has 1052 states and 1371 transitions. Word has length 119 [2024-11-06 18:54:20,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:54:20,623 INFO L471 AbstractCegarLoop]: Abstraction has 1052 states and 1371 transitions. [2024-11-06 18:54:20,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 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 18:54:20,623 INFO L276 IsEmpty]: Start isEmpty. Operand 1052 states and 1371 transitions. [2024-11-06 18:54:20,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-06 18:54:20,625 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:54:20,625 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:54:20,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-06 18:54:20,626 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:54:20,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:54:20,626 INFO L85 PathProgramCache]: Analyzing trace with hash 2700462, now seen corresponding path program 1 times [2024-11-06 18:54:20,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:54:20,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464371080] [2024-11-06 18:54:20,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:54:20,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:54:20,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:54:20,874 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-06 18:54:20,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:54:20,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464371080] [2024-11-06 18:54:20,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464371080] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 18:54:20,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 18:54:20,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 18:54:20,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441233819] [2024-11-06 18:54:20,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 18:54:20,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 18:54:20,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:54:20,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 18:54:20,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 18:54:20,876 INFO L87 Difference]: Start difference. First operand 1052 states and 1371 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 2 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 18:54:21,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:54:21,180 INFO L93 Difference]: Finished difference Result 2626 states and 3390 transitions. [2024-11-06 18:54:21,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 18:54:21,180 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 2 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 123 [2024-11-06 18:54:21,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:54:21,185 INFO L225 Difference]: With dead ends: 2626 [2024-11-06 18:54:21,185 INFO L226 Difference]: Without dead ends: 1576 [2024-11-06 18:54:21,186 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 18:54:21,188 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 137 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-06 18:54:21,188 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 54 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-06 18:54:21,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1576 states. [2024-11-06 18:54:21,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1576 to 1314. [2024-11-06 18:54:21,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1314 states, 1313 states have (on average 1.2711348057882712) internal successors, (1669), 1313 states have internal predecessors, (1669), 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 18:54:21,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1314 states to 1314 states and 1669 transitions. [2024-11-06 18:54:21,210 INFO L78 Accepts]: Start accepts. Automaton has 1314 states and 1669 transitions. Word has length 123 [2024-11-06 18:54:21,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:54:21,210 INFO L471 AbstractCegarLoop]: Abstraction has 1314 states and 1669 transitions. [2024-11-06 18:54:21,210 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 2 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 18:54:21,211 INFO L276 IsEmpty]: Start isEmpty. Operand 1314 states and 1669 transitions. [2024-11-06 18:54:21,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-06 18:54:21,212 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:54:21,212 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:54:21,213 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-06 18:54:21,213 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:54:21,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:54:21,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1985753384, now seen corresponding path program 1 times [2024-11-06 18:54:21,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:54:21,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460014527] [2024-11-06 18:54:21,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:54:21,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:54:21,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:54:21,316 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-11-06 18:54:21,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:54:21,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460014527] [2024-11-06 18:54:21,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460014527] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 18:54:21,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 18:54:21,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 18:54:21,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168172471] [2024-11-06 18:54:21,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 18:54:21,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 18:54:21,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:54:21,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 18:54:21,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 18:54:21,318 INFO L87 Difference]: Start difference. First operand 1314 states and 1669 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 18:54:21,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:54:21,664 INFO L93 Difference]: Finished difference Result 3281 states and 4117 transitions. [2024-11-06 18:54:21,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 18:54:21,664 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 136 [2024-11-06 18:54:21,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:54:21,669 INFO L225 Difference]: With dead ends: 3281 [2024-11-06 18:54:21,669 INFO L226 Difference]: Without dead ends: 1969 [2024-11-06 18:54:21,670 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 18:54:21,671 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 142 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-06 18:54:21,671 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 23 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-06 18:54:21,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1969 states. [2024-11-06 18:54:21,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1969 to 1576. [2024-11-06 18:54:21,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 1.245079365079365) internal successors, (1961), 1575 states have internal predecessors, (1961), 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 18:54:21,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 1961 transitions. [2024-11-06 18:54:21,714 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 1961 transitions. Word has length 136 [2024-11-06 18:54:21,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:54:21,715 INFO L471 AbstractCegarLoop]: Abstraction has 1576 states and 1961 transitions. [2024-11-06 18:54:21,715 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 18:54:21,715 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 1961 transitions. [2024-11-06 18:54:21,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-06 18:54:21,717 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:54:21,717 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:54:21,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-06 18:54:21,718 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:54:21,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:54:21,718 INFO L85 PathProgramCache]: Analyzing trace with hash 1308978639, now seen corresponding path program 1 times [2024-11-06 18:54:21,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:54:21,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818150135] [2024-11-06 18:54:21,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:54:21,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:54:21,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:54:21,851 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-11-06 18:54:21,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:54:21,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818150135] [2024-11-06 18:54:21,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818150135] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 18:54:21,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 18:54:21,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 18:54:21,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365537996] [2024-11-06 18:54:21,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 18:54:21,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 18:54:21,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:54:21,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 18:54:21,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 18:54:21,852 INFO L87 Difference]: Start difference. First operand 1576 states and 1961 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 2 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 18:54:22,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:54:22,169 INFO L93 Difference]: Finished difference Result 3412 states and 4260 transitions. [2024-11-06 18:54:22,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 18:54:22,170 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 2 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 138 [2024-11-06 18:54:22,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:54:22,174 INFO L225 Difference]: With dead ends: 3412 [2024-11-06 18:54:22,174 INFO L226 Difference]: Without dead ends: 1838 [2024-11-06 18:54:22,175 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 18:54:22,176 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 122 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-06 18:54:22,176 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 62 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-06 18:54:22,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1838 states. [2024-11-06 18:54:22,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1838 to 1707. [2024-11-06 18:54:22,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1707 states, 1706 states have (on average 1.2368112543962486) internal successors, (2110), 1706 states have internal predecessors, (2110), 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 18:54:22,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1707 states to 1707 states and 2110 transitions. [2024-11-06 18:54:22,199 INFO L78 Accepts]: Start accepts. Automaton has 1707 states and 2110 transitions. Word has length 138 [2024-11-06 18:54:22,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:54:22,199 INFO L471 AbstractCegarLoop]: Abstraction has 1707 states and 2110 transitions. [2024-11-06 18:54:22,199 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 2 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 18:54:22,199 INFO L276 IsEmpty]: Start isEmpty. Operand 1707 states and 2110 transitions. [2024-11-06 18:54:22,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-06 18:54:22,201 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:54:22,202 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:54:22,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-06 18:54:22,202 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:54:22,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:54:22,202 INFO L85 PathProgramCache]: Analyzing trace with hash 931813, now seen corresponding path program 1 times [2024-11-06 18:54:22,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:54:22,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716756771] [2024-11-06 18:54:22,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:54:22,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:54:22,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:54:22,408 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-06 18:54:22,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:54:22,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716756771] [2024-11-06 18:54:22,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716756771] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 18:54:22,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 18:54:22,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 18:54:22,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606062710] [2024-11-06 18:54:22,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 18:54:22,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 18:54:22,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:54:22,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 18:54:22,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 18:54:22,410 INFO L87 Difference]: Start difference. First operand 1707 states and 2110 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 18:54:22,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:54:22,783 INFO L93 Difference]: Finished difference Result 3674 states and 4504 transitions. [2024-11-06 18:54:22,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 18:54:22,783 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 154 [2024-11-06 18:54:22,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:54:22,788 INFO L225 Difference]: With dead ends: 3674 [2024-11-06 18:54:22,788 INFO L226 Difference]: Without dead ends: 1969 [2024-11-06 18:54:22,790 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 18:54:22,790 INFO L432 NwaCegarLoop]: 205 mSDtfsCounter, 121 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-06 18:54:22,790 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 211 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-06 18:54:22,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1969 states. [2024-11-06 18:54:22,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1969 to 1838. [2024-11-06 18:54:22,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1838 states, 1837 states have (on average 1.2199237887860643) internal successors, (2241), 1837 states have internal predecessors, (2241), 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 18:54:22,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 2241 transitions. [2024-11-06 18:54:22,814 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 2241 transitions. Word has length 154 [2024-11-06 18:54:22,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:54:22,814 INFO L471 AbstractCegarLoop]: Abstraction has 1838 states and 2241 transitions. [2024-11-06 18:54:22,815 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 18:54:22,815 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 2241 transitions. [2024-11-06 18:54:22,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-06 18:54:22,817 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:54:22,817 INFO L215 NwaCegarLoop]: trace histogram [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, 3, 3, 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] [2024-11-06 18:54:22,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-06 18:54:22,817 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:54:22,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:54:22,818 INFO L85 PathProgramCache]: Analyzing trace with hash 763947048, now seen corresponding path program 1 times [2024-11-06 18:54:22,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:54:22,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854770200] [2024-11-06 18:54:22,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:54:22,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:54:22,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:54:22,965 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-06 18:54:22,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:54:22,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854770200] [2024-11-06 18:54:22,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854770200] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 18:54:22,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 18:54:22,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-06 18:54:22,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917006278] [2024-11-06 18:54:22,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 18:54:22,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-06 18:54:22,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:54:22,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-06 18:54:22,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-06 18:54:22,967 INFO L87 Difference]: Start difference. First operand 1838 states and 2241 transitions. Second operand has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 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 18:54:23,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:54:23,477 INFO L93 Difference]: Finished difference Result 4591 states and 5560 transitions. [2024-11-06 18:54:23,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-06 18:54:23,478 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 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 168 [2024-11-06 18:54:23,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:54:23,485 INFO L225 Difference]: With dead ends: 4591 [2024-11-06 18:54:23,485 INFO L226 Difference]: Without dead ends: 2624 [2024-11-06 18:54:23,487 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-06 18:54:23,489 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 249 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 624 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-06 18:54:23,489 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 38 Invalid, 702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 624 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-06 18:54:23,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2624 states. [2024-11-06 18:54:23,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2624 to 2231. [2024-11-06 18:54:23,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2231 states, 2230 states have (on average 1.1896860986547084) internal successors, (2653), 2230 states have internal predecessors, (2653), 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 18:54:23,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2231 states to 2231 states and 2653 transitions. [2024-11-06 18:54:23,532 INFO L78 Accepts]: Start accepts. Automaton has 2231 states and 2653 transitions. Word has length 168 [2024-11-06 18:54:23,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:54:23,532 INFO L471 AbstractCegarLoop]: Abstraction has 2231 states and 2653 transitions. [2024-11-06 18:54:23,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 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 18:54:23,532 INFO L276 IsEmpty]: Start isEmpty. Operand 2231 states and 2653 transitions. [2024-11-06 18:54:23,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-06 18:54:23,536 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:54:23,537 INFO L215 NwaCegarLoop]: trace histogram [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, 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] [2024-11-06 18:54:23,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-06 18:54:23,537 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:54:23,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:54:23,541 INFO L85 PathProgramCache]: Analyzing trace with hash 800831842, now seen corresponding path program 1 times [2024-11-06 18:54:23,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:54:23,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146657650] [2024-11-06 18:54:23,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:54:23,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:54:23,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:54:23,674 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 109 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-06 18:54:23,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:54:23,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146657650] [2024-11-06 18:54:23,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146657650] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 18:54:23,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 18:54:23,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-06 18:54:23,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865734839] [2024-11-06 18:54:23,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 18:54:23,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-06 18:54:23,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:54:23,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-06 18:54:23,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-06 18:54:23,677 INFO L87 Difference]: Start difference. First operand 2231 states and 2653 transitions. Second operand has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 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 18:54:24,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:54:24,110 INFO L93 Difference]: Finished difference Result 4853 states and 5749 transitions. [2024-11-06 18:54:24,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-06 18:54:24,110 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 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 171 [2024-11-06 18:54:24,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:54:24,117 INFO L225 Difference]: With dead ends: 4853 [2024-11-06 18:54:24,117 INFO L226 Difference]: Without dead ends: 2624 [2024-11-06 18:54:24,119 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-06 18:54:24,121 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 349 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-06 18:54:24,122 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [349 Valid, 34 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 507 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-06 18:54:24,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2624 states. [2024-11-06 18:54:24,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2624 to 2231. [2024-11-06 18:54:24,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2231 states, 2230 states have (on average 1.1896860986547084) internal successors, (2653), 2230 states have internal predecessors, (2653), 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 18:54:24,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2231 states to 2231 states and 2653 transitions. [2024-11-06 18:54:24,153 INFO L78 Accepts]: Start accepts. Automaton has 2231 states and 2653 transitions. Word has length 171 [2024-11-06 18:54:24,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:54:24,153 INFO L471 AbstractCegarLoop]: Abstraction has 2231 states and 2653 transitions. [2024-11-06 18:54:24,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 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 18:54:24,153 INFO L276 IsEmpty]: Start isEmpty. Operand 2231 states and 2653 transitions. [2024-11-06 18:54:24,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-11-06 18:54:24,156 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:54:24,156 INFO L215 NwaCegarLoop]: trace histogram [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, 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] [2024-11-06 18:54:24,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-06 18:54:24,156 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:54:24,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:54:24,157 INFO L85 PathProgramCache]: Analyzing trace with hash 451757381, now seen corresponding path program 1 times [2024-11-06 18:54:24,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:54:24,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997156341] [2024-11-06 18:54:24,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:54:24,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:54:24,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:54:24,355 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 119 proven. 11 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-06 18:54:24,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:54:24,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997156341] [2024-11-06 18:54:24,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997156341] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 18:54:24,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [418208798] [2024-11-06 18:54:24,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:54:24,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 18:54:24,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 18:54:24,361 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 18:54:24,362 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 18:54:24,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:54:24,498 INFO L255 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-06 18:54:24,507 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 18:54:24,658 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-06 18:54:24,662 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 18:54:24,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [418208798] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 18:54:24,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 18:54:24,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-06 18:54:24,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479951096] [2024-11-06 18:54:24,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 18:54:24,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 18:54:24,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:54:24,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 18:54:24,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-06 18:54:24,663 INFO L87 Difference]: Start difference. First operand 2231 states and 2653 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 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 18:54:25,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:54:25,139 INFO L93 Difference]: Finished difference Result 2626 states and 3084 transitions. [2024-11-06 18:54:25,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 18:54:25,139 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 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 185 [2024-11-06 18:54:25,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:54:25,148 INFO L225 Difference]: With dead ends: 2626 [2024-11-06 18:54:25,152 INFO L226 Difference]: Without dead ends: 2624 [2024-11-06 18:54:25,153 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-06 18:54:25,153 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 71 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-06 18:54:25,154 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 30 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-06 18:54:25,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2624 states. [2024-11-06 18:54:25,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2624 to 2100. [2024-11-06 18:54:25,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2100 states, 2099 states have (on average 1.1815150071462601) internal successors, (2480), 2099 states have internal predecessors, (2480), 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 18:54:25,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2100 states to 2100 states and 2480 transitions. [2024-11-06 18:54:25,190 INFO L78 Accepts]: Start accepts. Automaton has 2100 states and 2480 transitions. Word has length 185 [2024-11-06 18:54:25,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:54:25,190 INFO L471 AbstractCegarLoop]: Abstraction has 2100 states and 2480 transitions. [2024-11-06 18:54:25,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 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 18:54:25,190 INFO L276 IsEmpty]: Start isEmpty. Operand 2100 states and 2480 transitions. [2024-11-06 18:54:25,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-06 18:54:25,193 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:54:25,193 INFO L215 NwaCegarLoop]: trace histogram [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, 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] [2024-11-06 18:54:25,208 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 18:54:25,397 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,SelfDestructingSolverStorable10 [2024-11-06 18:54:25,397 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:54:25,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:54:25,397 INFO L85 PathProgramCache]: Analyzing trace with hash 1669631844, now seen corresponding path program 1 times [2024-11-06 18:54:25,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:54:25,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100211496] [2024-11-06 18:54:25,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:54:25,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:54:25,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:54:25,755 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 63 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 18:54:25,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:54:25,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100211496] [2024-11-06 18:54:25,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100211496] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 18:54:25,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1738921660] [2024-11-06 18:54:25,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:54:25,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 18:54:25,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 18:54:25,758 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 18:54:25,760 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 18:54:25,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:54:25,853 INFO L255 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-06 18:54:25,856 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 18:54:26,005 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-11-06 18:54:26,005 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 18:54:26,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1738921660] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 18:54:26,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 18:54:26,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-11-06 18:54:26,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613810454] [2024-11-06 18:54:26,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 18:54:26,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 18:54:26,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:54:26,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 18:54:26,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-06 18:54:26,007 INFO L87 Difference]: Start difference. First operand 2100 states and 2480 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 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 18:54:26,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:54:26,338 INFO L93 Difference]: Finished difference Result 4591 states and 5411 transitions. [2024-11-06 18:54:26,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 18:54:26,339 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 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 189 [2024-11-06 18:54:26,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:54:26,344 INFO L225 Difference]: With dead ends: 4591 [2024-11-06 18:54:26,345 INFO L226 Difference]: Without dead ends: 2493 [2024-11-06 18:54:26,347 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-06 18:54:26,347 INFO L432 NwaCegarLoop]: 174 mSDtfsCounter, 52 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-06 18:54:26,348 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 180 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-06 18:54:26,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2493 states. [2024-11-06 18:54:26,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2493 to 2100. [2024-11-06 18:54:26,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2100 states, 2099 states have (on average 1.1557884707003334) internal successors, (2426), 2099 states have internal predecessors, (2426), 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 18:54:26,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2100 states to 2100 states and 2426 transitions. [2024-11-06 18:54:26,379 INFO L78 Accepts]: Start accepts. Automaton has 2100 states and 2426 transitions. Word has length 189 [2024-11-06 18:54:26,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:54:26,379 INFO L471 AbstractCegarLoop]: Abstraction has 2100 states and 2426 transitions. [2024-11-06 18:54:26,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 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 18:54:26,380 INFO L276 IsEmpty]: Start isEmpty. Operand 2100 states and 2426 transitions. [2024-11-06 18:54:26,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-11-06 18:54:26,382 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:54:26,383 INFO L215 NwaCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-06 18:54:26,397 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 18:54:26,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 18:54:26,583 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:54:26,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:54:26,584 INFO L85 PathProgramCache]: Analyzing trace with hash 185682996, now seen corresponding path program 1 times [2024-11-06 18:54:26,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:54:26,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495406897] [2024-11-06 18:54:26,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:54:26,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:54:26,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:54:26,772 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 125 proven. 11 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-06 18:54:26,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:54:26,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495406897] [2024-11-06 18:54:26,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495406897] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 18:54:26,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [763436693] [2024-11-06 18:54:26,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:54:26,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 18:54:26,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 18:54:26,778 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 18:54:26,779 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-06 18:54:26,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:54:26,872 INFO L255 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-06 18:54:26,876 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 18:54:27,012 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-11-06 18:54:27,012 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 18:54:27,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [763436693] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 18:54:27,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 18:54:27,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-06 18:54:27,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903183579] [2024-11-06 18:54:27,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 18:54:27,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 18:54:27,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:54:27,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 18:54:27,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-06 18:54:27,015 INFO L87 Difference]: Start difference. First operand 2100 states and 2426 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 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 18:54:27,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:54:27,337 INFO L93 Difference]: Finished difference Result 3803 states and 4396 transitions. [2024-11-06 18:54:27,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 18:54:27,338 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 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 191 [2024-11-06 18:54:27,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:54:27,338 INFO L225 Difference]: With dead ends: 3803 [2024-11-06 18:54:27,338 INFO L226 Difference]: Without dead ends: 0 [2024-11-06 18:54:27,341 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-06 18:54:27,341 INFO L432 NwaCegarLoop]: 184 mSDtfsCounter, 54 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-06 18:54:27,342 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 189 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-06 18:54:27,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-06 18:54:27,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-06 18:54:27,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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 18:54:27,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-06 18:54:27,343 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 191 [2024-11-06 18:54:27,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:54:27,343 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-06 18:54:27,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 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 18:54:27,343 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-06 18:54:27,343 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-06 18:54:27,345 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-06 18:54:27,358 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-06 18:54:27,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 18:54:27,549 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 18:54:27,550 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-06 18:54:27,944 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-06 18:54:27,957 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 06:54:27 BoogieIcfgContainer [2024-11-06 18:54:27,958 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-06 18:54:27,959 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-06 18:54:27,959 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-06 18:54:27,959 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-06 18:54:27,960 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 06:54:17" (3/4) ... [2024-11-06 18:54:27,961 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-06 18:54:27,977 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-06 18:54:27,977 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-06 18:54:27,978 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-06 18:54:27,978 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-06 18:54:28,074 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-06 18:54:28,075 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-06 18:54:28,075 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-06 18:54:28,075 INFO L158 Benchmark]: Toolchain (without parser) took 11860.80ms. Allocated memory was 117.4MB in the beginning and 310.4MB in the end (delta: 192.9MB). Free memory was 92.6MB in the beginning and 149.0MB in the end (delta: -56.4MB). Peak memory consumption was 132.7MB. Max. memory is 16.1GB. [2024-11-06 18:54:28,076 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 83.9MB. Free memory is still 47.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-06 18:54:28,076 INFO L158 Benchmark]: CACSL2BoogieTranslator took 427.88ms. Allocated memory is still 117.4MB. Free memory was 92.4MB in the beginning and 65.7MB in the end (delta: 26.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-06 18:54:28,076 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.07ms. Allocated memory is still 117.4MB. Free memory was 65.7MB in the beginning and 60.4MB in the end (delta: 5.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-06 18:54:28,077 INFO L158 Benchmark]: Boogie Preprocessor took 87.54ms. Allocated memory is still 117.4MB. Free memory was 60.2MB in the beginning and 55.5MB in the end (delta: 4.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-06 18:54:28,077 INFO L158 Benchmark]: RCFGBuilder took 861.80ms. Allocated memory is still 117.4MB. Free memory was 55.5MB in the beginning and 72.2MB in the end (delta: -16.7MB). Peak memory consumption was 41.3MB. Max. memory is 16.1GB. [2024-11-06 18:54:28,077 INFO L158 Benchmark]: TraceAbstraction took 10282.21ms. Allocated memory was 117.4MB in the beginning and 310.4MB in the end (delta: 192.9MB). Free memory was 71.5MB in the beginning and 158.6MB in the end (delta: -87.1MB). Peak memory consumption was 105.6MB. Max. memory is 16.1GB. [2024-11-06 18:54:28,078 INFO L158 Benchmark]: Witness Printer took 115.77ms. Allocated memory is still 310.4MB. Free memory was 158.6MB in the beginning and 149.0MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-06 18:54:28,078 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 83.9MB. Free memory is still 47.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 427.88ms. Allocated memory is still 117.4MB. Free memory was 92.4MB in the beginning and 65.7MB in the end (delta: 26.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.07ms. Allocated memory is still 117.4MB. Free memory was 65.7MB in the beginning and 60.4MB in the end (delta: 5.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 87.54ms. Allocated memory is still 117.4MB. Free memory was 60.2MB in the beginning and 55.5MB in the end (delta: 4.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 861.80ms. Allocated memory is still 117.4MB. Free memory was 55.5MB in the beginning and 72.2MB in the end (delta: -16.7MB). Peak memory consumption was 41.3MB. Max. memory is 16.1GB. * TraceAbstraction took 10282.21ms. Allocated memory was 117.4MB in the beginning and 310.4MB in the end (delta: 192.9MB). Free memory was 71.5MB in the beginning and 158.6MB in the end (delta: -87.1MB). Peak memory consumption was 105.6MB. Max. memory is 16.1GB. * Witness Printer took 115.77ms. Allocated memory is still 310.4MB. Free memory was 158.6MB in the beginning and 149.0MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 441]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 198 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 9.8s, OverallIterations: 13, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1819 SdHoareTripleChecker+Valid, 4.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1819 mSDsluCounter, 977 SdHoareTripleChecker+Invalid, 3.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 75 mSDsCounter, 766 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4855 IncrementalHoareTripleChecker+Invalid, 5621 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 766 mSolverCounterUnsat, 902 mSDtfsCounter, 4855 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 601 GetRequests, 578 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2231occurred in iteration=9, InterpolantAutomatonStates: 41, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 13 MinimizatonAttempts, 3013 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 2421 NumberOfCodeBlocks, 2421 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 2405 ConstructedInterpolants, 0 QuantifiedInterpolants, 8098 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1088 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 16 InterpolantComputations, 13 PerfectInterpolantSequences, 1586/1700 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 593]: Loop Invariant Derived loop invariant: (((((((((((((a7 != 1) && (a17 <= 0)) && (14 <= a8)) && (a21 == 1)) || ((((a17 <= 0) && (14 <= a8)) && (a21 == 1)) && (a20 == 1))) || (((a21 == 1) && (a17 == 1)) && (a20 == 1))) || ((((a7 != 1) && (a17 <= 0)) && (a21 == 1)) && (a16 <= 4))) || (((a21 <= 0) && (a17 <= 0)) && (a20 == 1))) || ((a21 <= 0) && (a16 <= 5))) || (((a21 <= 0) && (a17 == 1)) && (a20 == 1))) || (((((5 <= a16) && (a7 != 1)) && (14 <= a8)) && (a21 == 1)) && (a17 == 1))) || ((((a17 <= 0) && (14 <= a8)) && (a21 == 1)) && (a16 <= 5))) || ((((a7 != 1) && (a21 == 1)) && (a17 == 1)) && (15 <= a8))) RESULT: Ultimate proved your program to be correct! [2024-11-06 18:54:28,102 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE