./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem19_label26.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d19824-236b-4602-a2e5-cdf1efa7984e/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d19824-236b-4602-a2e5-cdf1efa7984e/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d19824-236b-4602-a2e5-cdf1efa7984e/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d19824-236b-4602-a2e5-cdf1efa7984e/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem19_label26.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d19824-236b-4602-a2e5-cdf1efa7984e/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d19824-236b-4602-a2e5-cdf1efa7984e/bin/uautomizer-verify-qhAvR1uOyd --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 4ebd5aed45c5461e176385745bb70c1ebeb4378f3074685fcb814a1b840527ca --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 12:46:15,077 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 12:46:15,165 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d19824-236b-4602-a2e5-cdf1efa7984e/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 12:46:15,171 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 12:46:15,171 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 12:46:15,199 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 12:46:15,200 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 12:46:15,200 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 12:46:15,200 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 12:46:15,201 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 12:46:15,201 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 12:46:15,201 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 12:46:15,201 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 12:46:15,201 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 12:46:15,202 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 12:46:15,202 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 12:46:15,202 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 12:46:15,203 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 12:46:15,203 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 12:46:15,203 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 12:46:15,203 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 12:46:15,203 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 12:46:15,203 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 12:46:15,205 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 12:46:15,206 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 12:46:15,206 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 12:46:15,206 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 12:46:15,206 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 12:46:15,206 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 12:46:15,206 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 12:46:15,207 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 12:46:15,207 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 12:46:15,207 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 12:46:15,207 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 12:46:15,207 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 12:46:15,207 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 12:46:15,207 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 12:46:15,207 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 12:46:15,207 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 12:46:15,207 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 12:46:15,207 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 12:46:15,208 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 12:46:15,208 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 -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d19824-236b-4602-a2e5-cdf1efa7984e/bin/uautomizer-verify-qhAvR1uOyd 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 -> 4ebd5aed45c5461e176385745bb70c1ebeb4378f3074685fcb814a1b840527ca [2024-11-13 12:46:15,664 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 12:46:15,678 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 12:46:15,680 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 12:46:15,682 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 12:46:15,683 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 12:46:15,684 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d19824-236b-4602-a2e5-cdf1efa7984e/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/eca-rers2012/Problem19_label26.c Unable to find full path for "g++" [2024-11-13 12:46:18,175 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 12:46:19,032 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 12:46:19,033 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d19824-236b-4602-a2e5-cdf1efa7984e/sv-benchmarks/c/eca-rers2012/Problem19_label26.c [2024-11-13 12:46:19,109 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d19824-236b-4602-a2e5-cdf1efa7984e/bin/uautomizer-verify-qhAvR1uOyd/data/deb94ebb9/4ff3eaa4a4fe441bb46f17daaa3334cd/FLAG839c3d681 [2024-11-13 12:46:19,137 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d19824-236b-4602-a2e5-cdf1efa7984e/bin/uautomizer-verify-qhAvR1uOyd/data/deb94ebb9/4ff3eaa4a4fe441bb46f17daaa3334cd [2024-11-13 12:46:19,140 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 12:46:19,142 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 12:46:19,145 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 12:46:19,145 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 12:46:19,152 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 12:46:19,153 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 12:46:19" (1/1) ... [2024-11-13 12:46:19,154 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1af289c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:46:19, skipping insertion in model container [2024-11-13 12:46:19,157 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 12:46:19" (1/1) ... [2024-11-13 12:46:19,396 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 12:46:19,893 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d19824-236b-4602-a2e5-cdf1efa7984e/sv-benchmarks/c/eca-rers2012/Problem19_label26.c[3735,3748] [2024-11-13 12:46:21,858 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 12:46:21,882 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 12:46:21,915 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d19824-236b-4602-a2e5-cdf1efa7984e/sv-benchmarks/c/eca-rers2012/Problem19_label26.c[3735,3748] [2024-11-13 12:46:23,137 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 12:46:23,227 INFO L204 MainTranslator]: Completed translation [2024-11-13 12:46:23,228 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:46:23 WrapperNode [2024-11-13 12:46:23,230 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 12:46:23,233 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 12:46:23,234 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 12:46:23,235 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 12:46:23,244 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:46:23" (1/1) ... [2024-11-13 12:46:23,405 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:46:23" (1/1) ... [2024-11-13 12:46:24,503 INFO L138 Inliner]: procedures = 19, calls = 13, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 9430 [2024-11-13 12:46:24,504 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 12:46:24,506 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 12:46:24,507 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 12:46:24,507 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 12:46:24,519 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:46:23" (1/1) ... [2024-11-13 12:46:24,519 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:46:23" (1/1) ... [2024-11-13 12:46:24,839 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:46:23" (1/1) ... [2024-11-13 12:46:25,341 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]. [2024-11-13 12:46:25,341 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:46:23" (1/1) ... [2024-11-13 12:46:25,341 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:46:23" (1/1) ... [2024-11-13 12:46:25,734 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:46:23" (1/1) ... [2024-11-13 12:46:25,840 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:46:23" (1/1) ... [2024-11-13 12:46:25,910 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:46:23" (1/1) ... [2024-11-13 12:46:25,949 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:46:23" (1/1) ... [2024-11-13 12:46:26,208 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 12:46:26,211 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 12:46:26,211 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 12:46:26,211 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 12:46:26,213 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:46:23" (1/1) ... [2024-11-13 12:46:26,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 12:46:26,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d19824-236b-4602-a2e5-cdf1efa7984e/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:46:26,273 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d19824-236b-4602-a2e5-cdf1efa7984e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 12:46:26,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d19824-236b-4602-a2e5-cdf1efa7984e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 12:46:26,315 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 12:46:26,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 12:46:26,315 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 12:46:26,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 12:46:26,460 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 12:46:26,464 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 12:46:40,501 INFO L? ?]: Removed 1320 outVars from TransFormulas that were not future-live. [2024-11-13 12:46:40,502 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 12:46:40,561 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 12:46:40,561 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 12:46:40,562 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 12:46:40 BoogieIcfgContainer [2024-11-13 12:46:40,562 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 12:46:40,565 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 12:46:40,565 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 12:46:40,575 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 12:46:40,575 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 12:46:19" (1/3) ... [2024-11-13 12:46:40,576 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57db2427 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 12:46:40, skipping insertion in model container [2024-11-13 12:46:40,577 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:46:23" (2/3) ... [2024-11-13 12:46:40,577 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57db2427 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 12:46:40, skipping insertion in model container [2024-11-13 12:46:40,577 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 12:46:40" (3/3) ... [2024-11-13 12:46:40,578 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label26.c [2024-11-13 12:46:40,598 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 12:46:40,599 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem19_label26.c that has 1 procedures, 1748 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 12:46:40,740 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 12:46:40,758 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;@73a3b405, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 12:46:40,759 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 12:46:40,773 INFO L276 IsEmpty]: Start isEmpty. Operand has 1748 states, 1746 states have (on average 1.8699885452462772) internal successors, (3265), 1747 states have internal predecessors, (3265), 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) [2024-11-13 12:46:40,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-13 12:46:40,781 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:46:40,782 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] [2024-11-13 12:46:40,783 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:46:40,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:46:40,790 INFO L85 PathProgramCache]: Analyzing trace with hash -1256495014, now seen corresponding path program 1 times [2024-11-13 12:46:40,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:46:40,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412155472] [2024-11-13 12:46:40,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:46:40,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:46:40,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:46:41,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:46:41,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:46:41,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412155472] [2024-11-13 12:46:41,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412155472] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:46:41,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:46:41,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 12:46:41,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700142203] [2024-11-13 12:46:41,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:46:41,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:46:41,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:46:41,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:46:41,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:46:41,252 INFO L87 Difference]: Start difference. First operand has 1748 states, 1746 states have (on average 1.8699885452462772) internal successors, (3265), 1747 states have internal predecessors, (3265), 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 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 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) [2024-11-13 12:46:52,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:46:52,459 INFO L93 Difference]: Finished difference Result 4975 states and 9416 transitions. [2024-11-13 12:46:52,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:46:52,462 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 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 26 [2024-11-13 12:46:52,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:46:52,503 INFO L225 Difference]: With dead ends: 4975 [2024-11-13 12:46:52,506 INFO L226 Difference]: Without dead ends: 3163 [2024-11-13 12:46:52,519 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 [2024-11-13 12:46:52,526 INFO L432 NwaCegarLoop]: 1358 mSDtfsCounter, 1520 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 4670 mSolverCounterSat, 1123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1520 SdHoareTripleChecker+Valid, 1529 SdHoareTripleChecker+Invalid, 5793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1123 IncrementalHoareTripleChecker+Valid, 4670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2024-11-13 12:46:52,527 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1520 Valid, 1529 Invalid, 5793 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1123 Valid, 4670 Invalid, 0 Unknown, 0 Unchecked, 10.7s Time] [2024-11-13 12:46:52,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3163 states. [2024-11-13 12:46:52,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3163 to 3123. [2024-11-13 12:46:52,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3123 states, 3122 states have (on average 1.6268417680973735) internal successors, (5079), 3122 states have internal predecessors, (5079), 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) [2024-11-13 12:46:52,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3123 states to 3123 states and 5079 transitions. [2024-11-13 12:46:52,787 INFO L78 Accepts]: Start accepts. Automaton has 3123 states and 5079 transitions. Word has length 26 [2024-11-13 12:46:52,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:46:52,787 INFO L471 AbstractCegarLoop]: Abstraction has 3123 states and 5079 transitions. [2024-11-13 12:46:52,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 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) [2024-11-13 12:46:52,789 INFO L276 IsEmpty]: Start isEmpty. Operand 3123 states and 5079 transitions. [2024-11-13 12:46:52,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-13 12:46:52,792 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:46:52,792 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:46:52,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 12:46:52,793 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:46:52,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:46:52,794 INFO L85 PathProgramCache]: Analyzing trace with hash 836409412, now seen corresponding path program 1 times [2024-11-13 12:46:52,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:46:52,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637242503] [2024-11-13 12:46:52,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:46:52,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:46:52,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:46:53,213 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:46:53,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:46:53,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637242503] [2024-11-13 12:46:53,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637242503] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:46:53,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:46:53,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 12:46:53,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51150692] [2024-11-13 12:46:53,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:46:53,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:46:53,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:46:53,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:46:53,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:46:53,220 INFO L87 Difference]: Start difference. First operand 3123 states and 5079 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) [2024-11-13 12:47:04,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:47:04,122 INFO L93 Difference]: Finished difference Result 9053 states and 14813 transitions. [2024-11-13 12:47:04,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:47:04,123 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 97 [2024-11-13 12:47:04,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:47:04,148 INFO L225 Difference]: With dead ends: 9053 [2024-11-13 12:47:04,148 INFO L226 Difference]: Without dead ends: 5932 [2024-11-13 12:47:04,153 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 [2024-11-13 12:47:04,154 INFO L432 NwaCegarLoop]: 1328 mSDtfsCounter, 1534 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 4265 mSolverCounterSat, 1473 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1534 SdHoareTripleChecker+Valid, 1547 SdHoareTripleChecker+Invalid, 5738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1473 IncrementalHoareTripleChecker+Valid, 4265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2024-11-13 12:47:04,155 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1534 Valid, 1547 Invalid, 5738 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1473 Valid, 4265 Invalid, 0 Unknown, 0 Unchecked, 10.6s Time] [2024-11-13 12:47:04,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5932 states. [2024-11-13 12:47:04,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5932 to 5910. [2024-11-13 12:47:04,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5910 states, 5909 states have (on average 1.423421898798443) internal successors, (8411), 5909 states have internal predecessors, (8411), 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) [2024-11-13 12:47:04,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5910 states to 5910 states and 8411 transitions. [2024-11-13 12:47:04,318 INFO L78 Accepts]: Start accepts. Automaton has 5910 states and 8411 transitions. Word has length 97 [2024-11-13 12:47:04,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:47:04,319 INFO L471 AbstractCegarLoop]: Abstraction has 5910 states and 8411 transitions. [2024-11-13 12:47:04,319 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) [2024-11-13 12:47:04,319 INFO L276 IsEmpty]: Start isEmpty. Operand 5910 states and 8411 transitions. [2024-11-13 12:47:04,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-13 12:47:04,323 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:47:04,324 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:47:04,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 12:47:04,324 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:47:04,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:47:04,325 INFO L85 PathProgramCache]: Analyzing trace with hash 1923938485, now seen corresponding path program 1 times [2024-11-13 12:47:04,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:47:04,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861881142] [2024-11-13 12:47:04,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:47:04,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:47:04,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:47:04,750 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:47:04,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:47:04,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861881142] [2024-11-13 12:47:04,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861881142] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:47:04,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:47:04,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 12:47:04,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843780296] [2024-11-13 12:47:04,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:47:04,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:47:04,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:47:04,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:47:04,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:47:04,755 INFO L87 Difference]: Start difference. First operand 5910 states and 8411 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 2 states have internal predecessors, (123), 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) [2024-11-13 12:47:14,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:47:14,650 INFO L93 Difference]: Finished difference Result 17505 states and 24942 transitions. [2024-11-13 12:47:14,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:47:14,651 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 2 states have internal predecessors, (123), 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 [2024-11-13 12:47:14,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:47:14,700 INFO L225 Difference]: With dead ends: 17505 [2024-11-13 12:47:14,701 INFO L226 Difference]: Without dead ends: 11597 [2024-11-13 12:47:14,709 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 [2024-11-13 12:47:14,710 INFO L432 NwaCegarLoop]: 1532 mSDtfsCounter, 1750 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 4227 mSolverCounterSat, 1430 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1750 SdHoareTripleChecker+Valid, 1805 SdHoareTripleChecker+Invalid, 5657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1430 IncrementalHoareTripleChecker+Valid, 4227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2024-11-13 12:47:14,711 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1750 Valid, 1805 Invalid, 5657 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1430 Valid, 4227 Invalid, 0 Unknown, 0 Unchecked, 9.6s Time] [2024-11-13 12:47:14,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11597 states. [2024-11-13 12:47:14,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11597 to 11578. [2024-11-13 12:47:14,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11578 states, 11577 states have (on average 1.2801243845555843) internal successors, (14820), 11577 states have internal predecessors, (14820), 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) [2024-11-13 12:47:14,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11578 states to 11578 states and 14820 transitions. [2024-11-13 12:47:14,982 INFO L78 Accepts]: Start accepts. Automaton has 11578 states and 14820 transitions. Word has length 123 [2024-11-13 12:47:14,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:47:14,984 INFO L471 AbstractCegarLoop]: Abstraction has 11578 states and 14820 transitions. [2024-11-13 12:47:14,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 2 states have internal predecessors, (123), 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) [2024-11-13 12:47:14,988 INFO L276 IsEmpty]: Start isEmpty. Operand 11578 states and 14820 transitions. [2024-11-13 12:47:14,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-13 12:47:14,991 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:47:14,991 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:47:14,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 12:47:14,992 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:47:14,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:47:14,992 INFO L85 PathProgramCache]: Analyzing trace with hash -120749279, now seen corresponding path program 1 times [2024-11-13 12:47:14,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:47:14,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507927916] [2024-11-13 12:47:14,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:47:14,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:47:15,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:47:15,345 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:47:15,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:47:15,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507927916] [2024-11-13 12:47:15,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507927916] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:47:15,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:47:15,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 12:47:15,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540338728] [2024-11-13 12:47:15,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:47:15,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:47:15,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:47:15,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:47:15,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:47:15,349 INFO L87 Difference]: Start difference. First operand 11578 states and 14820 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 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) [2024-11-13 12:47:25,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:47:25,701 INFO L93 Difference]: Finished difference Result 34273 states and 43832 transitions. [2024-11-13 12:47:25,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:47:25,702 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 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 131 [2024-11-13 12:47:25,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:47:25,764 INFO L225 Difference]: With dead ends: 34273 [2024-11-13 12:47:25,764 INFO L226 Difference]: Without dead ends: 22697 [2024-11-13 12:47:25,777 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 [2024-11-13 12:47:25,778 INFO L432 NwaCegarLoop]: 722 mSDtfsCounter, 2497 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 5120 mSolverCounterSat, 434 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2497 SdHoareTripleChecker+Valid, 994 SdHoareTripleChecker+Invalid, 5554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 434 IncrementalHoareTripleChecker+Valid, 5120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2024-11-13 12:47:25,779 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2497 Valid, 994 Invalid, 5554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [434 Valid, 5120 Invalid, 0 Unknown, 0 Unchecked, 10.0s Time] [2024-11-13 12:47:25,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22697 states. [2024-11-13 12:47:26,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22697 to 22694. [2024-11-13 12:47:26,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22694 states, 22693 states have (on average 1.238663905168995) internal successors, (28109), 22693 states have internal predecessors, (28109), 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) [2024-11-13 12:47:26,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22694 states to 22694 states and 28109 transitions. [2024-11-13 12:47:26,262 INFO L78 Accepts]: Start accepts. Automaton has 22694 states and 28109 transitions. Word has length 131 [2024-11-13 12:47:26,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:47:26,262 INFO L471 AbstractCegarLoop]: Abstraction has 22694 states and 28109 transitions. [2024-11-13 12:47:26,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 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) [2024-11-13 12:47:26,263 INFO L276 IsEmpty]: Start isEmpty. Operand 22694 states and 28109 transitions. [2024-11-13 12:47:26,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2024-11-13 12:47:26,274 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:47:26,275 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:47:26,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 12:47:26,275 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:47:26,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:47:26,276 INFO L85 PathProgramCache]: Analyzing trace with hash 422360715, now seen corresponding path program 1 times [2024-11-13 12:47:26,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:47:26,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322873978] [2024-11-13 12:47:26,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:47:26,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:47:26,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:47:28,583 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-13 12:47:28,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:47:28,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322873978] [2024-11-13 12:47:28,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322873978] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:47:28,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:47:28,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:47:28,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649090310] [2024-11-13 12:47:28,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:47:28,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 12:47:28,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:47:28,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 12:47:28,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:47:28,590 INFO L87 Difference]: Start difference. First operand 22694 states and 28109 transitions. Second operand has 4 states, 4 states have (on average 92.5) internal successors, (370), 3 states have internal predecessors, (370), 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) [2024-11-13 12:47:42,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:47:42,919 INFO L93 Difference]: Finished difference Result 57752 states and 69837 transitions. [2024-11-13 12:47:42,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 12:47:42,920 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 92.5) internal successors, (370), 3 states have internal predecessors, (370), 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 393 [2024-11-13 12:47:42,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:47:42,992 INFO L225 Difference]: With dead ends: 57752 [2024-11-13 12:47:42,992 INFO L226 Difference]: Without dead ends: 35060 [2024-11-13 12:47:43,013 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 12:47:43,016 INFO L432 NwaCegarLoop]: 1805 mSDtfsCounter, 3756 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 9454 mSolverCounterSat, 244 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3756 SdHoareTripleChecker+Valid, 2160 SdHoareTripleChecker+Invalid, 9698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 244 IncrementalHoareTripleChecker+Valid, 9454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.8s IncrementalHoareTripleChecker+Time [2024-11-13 12:47:43,017 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3756 Valid, 2160 Invalid, 9698 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [244 Valid, 9454 Invalid, 0 Unknown, 0 Unchecked, 13.8s Time] [2024-11-13 12:47:43,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35060 states. [2024-11-13 12:47:43,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35060 to 32288. [2024-11-13 12:47:43,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32288 states, 32287 states have (on average 1.1912844178771642) internal successors, (38463), 32287 states have internal predecessors, (38463), 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) [2024-11-13 12:47:43,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32288 states to 32288 states and 38463 transitions. [2024-11-13 12:47:43,678 INFO L78 Accepts]: Start accepts. Automaton has 32288 states and 38463 transitions. Word has length 393 [2024-11-13 12:47:43,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:47:43,679 INFO L471 AbstractCegarLoop]: Abstraction has 32288 states and 38463 transitions. [2024-11-13 12:47:43,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 92.5) internal successors, (370), 3 states have internal predecessors, (370), 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) [2024-11-13 12:47:43,679 INFO L276 IsEmpty]: Start isEmpty. Operand 32288 states and 38463 transitions. [2024-11-13 12:47:43,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2024-11-13 12:47:43,689 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:47:43,689 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:47:43,689 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 12:47:43,690 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:47:43,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:47:43,690 INFO L85 PathProgramCache]: Analyzing trace with hash -1834956635, now seen corresponding path program 1 times [2024-11-13 12:47:43,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:47:43,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693471859] [2024-11-13 12:47:43,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:47:43,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:47:43,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:47:45,054 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 206 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:47:45,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:47:45,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693471859] [2024-11-13 12:47:45,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693471859] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:47:45,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:47:45,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:47:45,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804765001] [2024-11-13 12:47:45,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:47:45,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 12:47:45,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:47:45,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 12:47:45,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:47:45,058 INFO L87 Difference]: Start difference. First operand 32288 states and 38463 transitions. Second operand has 4 states, 4 states have (on average 105.25) internal successors, (421), 3 states have internal predecessors, (421), 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) [2024-11-13 12:47:56,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:47:56,224 INFO L93 Difference]: Finished difference Result 67335 states and 79703 transitions. [2024-11-13 12:47:56,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 12:47:56,225 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 105.25) internal successors, (421), 3 states have internal predecessors, (421), 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 421 [2024-11-13 12:47:56,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:47:56,272 INFO L225 Difference]: With dead ends: 67335 [2024-11-13 12:47:56,272 INFO L226 Difference]: Without dead ends: 35018 [2024-11-13 12:47:56,293 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:47:56,294 INFO L432 NwaCegarLoop]: 1776 mSDtfsCounter, 1138 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 7327 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1138 SdHoareTripleChecker+Valid, 2118 SdHoareTripleChecker+Invalid, 7335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 7327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2024-11-13 12:47:56,295 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1138 Valid, 2118 Invalid, 7335 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 7327 Invalid, 0 Unknown, 0 Unchecked, 10.6s Time] [2024-11-13 12:47:56,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35018 states. [2024-11-13 12:47:56,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35018 to 35018. [2024-11-13 12:47:56,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35018 states, 35017 states have (on average 1.1765142645000999) internal successors, (41198), 35017 states have internal predecessors, (41198), 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) [2024-11-13 12:47:56,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35018 states to 35018 states and 41198 transitions. [2024-11-13 12:47:56,770 INFO L78 Accepts]: Start accepts. Automaton has 35018 states and 41198 transitions. Word has length 421 [2024-11-13 12:47:56,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:47:56,771 INFO L471 AbstractCegarLoop]: Abstraction has 35018 states and 41198 transitions. [2024-11-13 12:47:56,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 105.25) internal successors, (421), 3 states have internal predecessors, (421), 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) [2024-11-13 12:47:56,772 INFO L276 IsEmpty]: Start isEmpty. Operand 35018 states and 41198 transitions. [2024-11-13 12:47:56,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 514 [2024-11-13 12:47:56,787 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:47:56,788 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:47:56,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 12:47:56,788 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:47:56,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:47:56,789 INFO L85 PathProgramCache]: Analyzing trace with hash -1769141557, now seen corresponding path program 1 times [2024-11-13 12:47:56,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:47:56,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394528987] [2024-11-13 12:47:56,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:47:56,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:47:57,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:47:57,676 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:47:57,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:47:57,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394528987] [2024-11-13 12:47:57,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394528987] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:47:57,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:47:57,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:47:57,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011762136] [2024-11-13 12:47:57,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:47:57,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:47:57,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:47:57,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:47:57,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:47:57,680 INFO L87 Difference]: Start difference. First operand 35018 states and 41198 transitions. Second operand has 3 states, 3 states have (on average 171.0) internal successors, (513), 3 states have internal predecessors, (513), 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) [2024-11-13 12:48:07,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:48:07,718 INFO L93 Difference]: Finished difference Result 78377 states and 94558 transitions. [2024-11-13 12:48:07,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:48:07,718 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 171.0) internal successors, (513), 3 states have internal predecessors, (513), 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 513 [2024-11-13 12:48:07,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:48:07,759 INFO L225 Difference]: With dead ends: 78377 [2024-11-13 12:48:07,759 INFO L226 Difference]: Without dead ends: 46091 [2024-11-13 12:48:07,780 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 [2024-11-13 12:48:07,781 INFO L432 NwaCegarLoop]: 2744 mSDtfsCounter, 1509 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 4061 mSolverCounterSat, 1803 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1509 SdHoareTripleChecker+Valid, 2923 SdHoareTripleChecker+Invalid, 5864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1803 IncrementalHoareTripleChecker+Valid, 4061 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2024-11-13 12:48:07,781 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1509 Valid, 2923 Invalid, 5864 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1803 Valid, 4061 Invalid, 0 Unknown, 0 Unchecked, 9.6s Time] [2024-11-13 12:48:07,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46091 states. [2024-11-13 12:48:08,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46091 to 45986. [2024-11-13 12:48:08,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45986 states, 45985 states have (on average 1.167293682722627) internal successors, (53678), 45985 states have internal predecessors, (53678), 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) [2024-11-13 12:48:08,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45986 states to 45986 states and 53678 transitions. [2024-11-13 12:48:08,450 INFO L78 Accepts]: Start accepts. Automaton has 45986 states and 53678 transitions. Word has length 513 [2024-11-13 12:48:08,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:48:08,451 INFO L471 AbstractCegarLoop]: Abstraction has 45986 states and 53678 transitions. [2024-11-13 12:48:08,452 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 171.0) internal successors, (513), 3 states have internal predecessors, (513), 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) [2024-11-13 12:48:08,452 INFO L276 IsEmpty]: Start isEmpty. Operand 45986 states and 53678 transitions. [2024-11-13 12:48:08,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 726 [2024-11-13 12:48:08,480 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:48:08,482 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:48:08,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 12:48:08,483 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:48:08,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:48:08,484 INFO L85 PathProgramCache]: Analyzing trace with hash -1417938237, now seen corresponding path program 1 times [2024-11-13 12:48:08,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:48:08,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094124660] [2024-11-13 12:48:08,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:48:08,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:48:08,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:48:09,551 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 209 trivial. 0 not checked. [2024-11-13 12:48:09,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:48:09,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094124660] [2024-11-13 12:48:09,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094124660] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:48:09,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:48:09,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:48:09,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727878044] [2024-11-13 12:48:09,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:48:09,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:48:09,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:48:09,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:48:09,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:48:09,557 INFO L87 Difference]: Start difference. First operand 45986 states and 53678 transitions. Second operand has 3 states, 3 states have (on average 172.33333333333334) internal successors, (517), 3 states have internal predecessors, (517), 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) [2024-11-13 12:48:19,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:48:19,516 INFO L93 Difference]: Finished difference Result 113841 states and 135601 transitions. [2024-11-13 12:48:19,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:48:19,517 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 172.33333333333334) internal successors, (517), 3 states have internal predecessors, (517), 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 725 [2024-11-13 12:48:19,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:48:19,626 INFO L225 Difference]: With dead ends: 113841 [2024-11-13 12:48:19,627 INFO L226 Difference]: Without dead ends: 70587 [2024-11-13 12:48:19,673 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 [2024-11-13 12:48:19,675 INFO L432 NwaCegarLoop]: 3109 mSDtfsCounter, 1392 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 4613 mSolverCounterSat, 1160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1392 SdHoareTripleChecker+Valid, 3309 SdHoareTripleChecker+Invalid, 5773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1160 IncrementalHoareTripleChecker+Valid, 4613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2024-11-13 12:48:19,675 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1392 Valid, 3309 Invalid, 5773 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1160 Valid, 4613 Invalid, 0 Unknown, 0 Unchecked, 9.3s Time] [2024-11-13 12:48:19,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70587 states. [2024-11-13 12:48:20,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70587 to 70573. [2024-11-13 12:48:20,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70573 states, 70572 states have (on average 1.1289746641727598) internal successors, (79674), 70572 states have internal predecessors, (79674), 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) [2024-11-13 12:48:20,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70573 states to 70573 states and 79674 transitions. [2024-11-13 12:48:20,945 INFO L78 Accepts]: Start accepts. Automaton has 70573 states and 79674 transitions. Word has length 725 [2024-11-13 12:48:20,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:48:20,947 INFO L471 AbstractCegarLoop]: Abstraction has 70573 states and 79674 transitions. [2024-11-13 12:48:20,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 172.33333333333334) internal successors, (517), 3 states have internal predecessors, (517), 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) [2024-11-13 12:48:20,947 INFO L276 IsEmpty]: Start isEmpty. Operand 70573 states and 79674 transitions. [2024-11-13 12:48:20,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 733 [2024-11-13 12:48:20,964 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:48:20,966 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:48:20,970 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 12:48:20,970 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:48:20,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:48:20,972 INFO L85 PathProgramCache]: Analyzing trace with hash -121050551, now seen corresponding path program 1 times [2024-11-13 12:48:20,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:48:20,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378147927] [2024-11-13 12:48:20,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:48:20,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:48:21,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:48:23,507 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 69 proven. 196 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:48:23,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:48:23,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378147927] [2024-11-13 12:48:23,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378147927] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 12:48:23,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1574323595] [2024-11-13 12:48:23,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:48:23,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:48:23,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d19824-236b-4602-a2e5-cdf1efa7984e/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:48:23,513 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d19824-236b-4602-a2e5-cdf1efa7984e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:48:23,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d19824-236b-4602-a2e5-cdf1efa7984e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 12:48:23,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:48:23,921 INFO L255 TraceCheckSpWp]: Trace formula consists of 838 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 12:48:23,943 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:48:24,077 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2024-11-13 12:48:24,078 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 12:48:24,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1574323595] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:48:24,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 12:48:24,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-13 12:48:24,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455937696] [2024-11-13 12:48:24,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:48:24,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:48:24,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:48:24,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:48:24,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-13 12:48:24,082 INFO L87 Difference]: Start difference. First operand 70573 states and 79674 transitions. Second operand has 3 states, 3 states have (on average 171.66666666666666) internal successors, (515), 3 states have internal predecessors, (515), 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) [2024-11-13 12:48:34,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:48:34,505 INFO L93 Difference]: Finished difference Result 175307 states and 200692 transitions. [2024-11-13 12:48:34,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:48:34,506 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 171.66666666666666) internal successors, (515), 3 states have internal predecessors, (515), 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 732 [2024-11-13 12:48:34,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:48:34,677 INFO L225 Difference]: With dead ends: 175307 [2024-11-13 12:48:34,677 INFO L226 Difference]: Without dead ends: 107466 [2024-11-13 12:48:34,722 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 735 GetRequests, 731 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-13 12:48:34,726 INFO L432 NwaCegarLoop]: 1523 mSDtfsCounter, 1552 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 5059 mSolverCounterSat, 1015 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1552 SdHoareTripleChecker+Valid, 1652 SdHoareTripleChecker+Invalid, 6074 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1015 IncrementalHoareTripleChecker+Valid, 5059 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2024-11-13 12:48:34,726 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1552 Valid, 1652 Invalid, 6074 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1015 Valid, 5059 Invalid, 0 Unknown, 0 Unchecked, 9.6s Time] [2024-11-13 12:48:34,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107466 states. [2024-11-13 12:48:36,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107466 to 101974. [2024-11-13 12:48:36,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101974 states, 101973 states have (on average 1.133290184656723) internal successors, (115565), 101973 states have internal predecessors, (115565), 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) [2024-11-13 12:48:36,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101974 states to 101974 states and 115565 transitions. [2024-11-13 12:48:36,719 INFO L78 Accepts]: Start accepts. Automaton has 101974 states and 115565 transitions. Word has length 732 [2024-11-13 12:48:36,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:48:36,722 INFO L471 AbstractCegarLoop]: Abstraction has 101974 states and 115565 transitions. [2024-11-13 12:48:36,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 171.66666666666666) internal successors, (515), 3 states have internal predecessors, (515), 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) [2024-11-13 12:48:36,722 INFO L276 IsEmpty]: Start isEmpty. Operand 101974 states and 115565 transitions. [2024-11-13 12:48:36,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 844 [2024-11-13 12:48:36,743 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:48:36,744 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:48:36,771 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d19824-236b-4602-a2e5-cdf1efa7984e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 12:48:36,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d19824-236b-4602-a2e5-cdf1efa7984e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-13 12:48:36,945 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:48:36,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:48:36,946 INFO L85 PathProgramCache]: Analyzing trace with hash 827181641, now seen corresponding path program 1 times [2024-11-13 12:48:36,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:48:36,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795253673] [2024-11-13 12:48:36,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:48:36,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:48:37,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:48:38,165 INFO L134 CoverageAnalysis]: Checked inductivity of 496 backedges. 240 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2024-11-13 12:48:38,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:48:38,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795253673] [2024-11-13 12:48:38,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795253673] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:48:38,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:48:38,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 12:48:38,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705100225] [2024-11-13 12:48:38,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:48:38,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:48:38,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:48:38,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:48:38,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:48:38,172 INFO L87 Difference]: Start difference. First operand 101974 states and 115565 transitions. Second operand has 3 states, 3 states have (on average 196.33333333333334) internal successors, (589), 2 states have internal predecessors, (589), 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) [2024-11-13 12:48:47,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:48:47,114 INFO L93 Difference]: Finished difference Result 201223 states and 228408 transitions. [2024-11-13 12:48:47,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:48:47,115 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 196.33333333333334) internal successors, (589), 2 states have internal predecessors, (589), 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 843 [2024-11-13 12:48:47,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:48:47,235 INFO L225 Difference]: With dead ends: 201223 [2024-11-13 12:48:47,235 INFO L226 Difference]: Without dead ends: 101981 [2024-11-13 12:48:47,262 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 [2024-11-13 12:48:47,263 INFO L432 NwaCegarLoop]: 704 mSDtfsCounter, 1387 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 3924 mSolverCounterSat, 1380 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1387 SdHoareTripleChecker+Valid, 754 SdHoareTripleChecker+Invalid, 5304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1380 IncrementalHoareTripleChecker+Valid, 3924 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2024-11-13 12:48:47,263 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1387 Valid, 754 Invalid, 5304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1380 Valid, 3924 Invalid, 0 Unknown, 0 Unchecked, 8.1s Time] [2024-11-13 12:48:47,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101981 states. [2024-11-13 12:48:48,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101981 to 101956. [2024-11-13 12:48:48,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101956 states, 101955 states have (on average 1.1081849835711834) internal successors, (112985), 101955 states have internal predecessors, (112985), 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) [2024-11-13 12:48:48,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101956 states to 101956 states and 112985 transitions. [2024-11-13 12:48:48,957 INFO L78 Accepts]: Start accepts. Automaton has 101956 states and 112985 transitions. Word has length 843 [2024-11-13 12:48:48,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:48:48,958 INFO L471 AbstractCegarLoop]: Abstraction has 101956 states and 112985 transitions. [2024-11-13 12:48:48,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 196.33333333333334) internal successors, (589), 2 states have internal predecessors, (589), 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) [2024-11-13 12:48:48,958 INFO L276 IsEmpty]: Start isEmpty. Operand 101956 states and 112985 transitions. [2024-11-13 12:48:48,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 886 [2024-11-13 12:48:48,981 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:48:48,981 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:48:48,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-13 12:48:48,982 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:48:48,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:48:48,983 INFO L85 PathProgramCache]: Analyzing trace with hash 1697532822, now seen corresponding path program 1 times [2024-11-13 12:48:48,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:48:48,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669803183] [2024-11-13 12:48:48,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:48:48,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:48:49,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:48:51,361 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 390 proven. 0 refuted. 0 times theorem prover too weak. 209 trivial. 0 not checked. [2024-11-13 12:48:51,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:48:51,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669803183] [2024-11-13 12:48:51,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669803183] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:48:51,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:48:51,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:48:51,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049857148] [2024-11-13 12:48:51,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:48:51,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:48:51,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:48:51,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:48:51,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:48:51,365 INFO L87 Difference]: Start difference. First operand 101956 states and 112985 transitions. Second operand has 3 states, 3 states have (on average 225.66666666666666) internal successors, (677), 3 states have internal predecessors, (677), 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) [2024-11-13 12:49:02,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:49:02,440 INFO L93 Difference]: Finished difference Result 239536 states and 267837 transitions. [2024-11-13 12:49:02,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:49:02,441 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 225.66666666666666) internal successors, (677), 3 states have internal predecessors, (677), 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 885 [2024-11-13 12:49:02,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:49:02,596 INFO L225 Difference]: With dead ends: 239536 [2024-11-13 12:49:02,596 INFO L226 Difference]: Without dead ends: 140312 [2024-11-13 12:49:02,636 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:49:02,637 INFO L432 NwaCegarLoop]: 666 mSDtfsCounter, 1574 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 4246 mSolverCounterSat, 2280 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1574 SdHoareTripleChecker+Valid, 725 SdHoareTripleChecker+Invalid, 6526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2280 IncrementalHoareTripleChecker+Valid, 4246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2024-11-13 12:49:02,637 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1574 Valid, 725 Invalid, 6526 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2280 Valid, 4246 Invalid, 0 Unknown, 0 Unchecked, 9.9s Time] [2024-11-13 12:49:02,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140312 states. [2024-11-13 12:49:04,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140312 to 133350. [2024-11-13 12:49:04,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133350 states, 133349 states have (on average 1.1248678280302065) internal successors, (150000), 133349 states have internal predecessors, (150000), 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) [2024-11-13 12:49:04,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133350 states to 133350 states and 150000 transitions. [2024-11-13 12:49:04,600 INFO L78 Accepts]: Start accepts. Automaton has 133350 states and 150000 transitions. Word has length 885 [2024-11-13 12:49:04,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:49:04,601 INFO L471 AbstractCegarLoop]: Abstraction has 133350 states and 150000 transitions. [2024-11-13 12:49:04,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 225.66666666666666) internal successors, (677), 3 states have internal predecessors, (677), 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) [2024-11-13 12:49:04,602 INFO L276 IsEmpty]: Start isEmpty. Operand 133350 states and 150000 transitions. [2024-11-13 12:49:04,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 917 [2024-11-13 12:49:04,627 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:49:04,630 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:49:04,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-13 12:49:04,631 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:49:04,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:49:04,632 INFO L85 PathProgramCache]: Analyzing trace with hash -390200225, now seen corresponding path program 1 times [2024-11-13 12:49:04,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:49:04,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39202749] [2024-11-13 12:49:04,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:49:04,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:49:04,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:49:06,015 INFO L134 CoverageAnalysis]: Checked inductivity of 778 backedges. 382 proven. 0 refuted. 0 times theorem prover too weak. 396 trivial. 0 not checked. [2024-11-13 12:49:06,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:49:06,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39202749] [2024-11-13 12:49:06,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39202749] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:49:06,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:49:06,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:49:06,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965176126] [2024-11-13 12:49:06,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:49:06,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:49:06,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:49:06,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:49:06,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:49:06,020 INFO L87 Difference]: Start difference. First operand 133350 states and 150000 transitions. Second operand has 3 states, 3 states have (on average 205.0) internal successors, (615), 3 states have internal predecessors, (615), 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) [2024-11-13 12:49:16,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:49:16,472 INFO L93 Difference]: Finished difference Result 304934 states and 346385 transitions. [2024-11-13 12:49:16,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:49:16,472 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 205.0) internal successors, (615), 3 states have internal predecessors, (615), 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 916 [2024-11-13 12:49:16,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:49:16,661 INFO L225 Difference]: With dead ends: 304934 [2024-11-13 12:49:16,661 INFO L226 Difference]: Without dead ends: 172949 [2024-11-13 12:49:16,712 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 [2024-11-13 12:49:16,713 INFO L432 NwaCegarLoop]: 3094 mSDtfsCounter, 1382 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 3740 mSolverCounterSat, 1636 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1382 SdHoareTripleChecker+Valid, 3279 SdHoareTripleChecker+Invalid, 5376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1636 IncrementalHoareTripleChecker+Valid, 3740 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2024-11-13 12:49:16,713 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1382 Valid, 3279 Invalid, 5376 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1636 Valid, 3740 Invalid, 0 Unknown, 0 Unchecked, 9.1s Time] [2024-11-13 12:49:16,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172949 states. [2024-11-13 12:49:18,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172949 to 168840. [2024-11-13 12:49:18,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168840 states, 168839 states have (on average 1.105591717553409) internal successors, (186667), 168839 states have internal predecessors, (186667), 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) [2024-11-13 12:49:19,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168840 states to 168840 states and 186667 transitions. [2024-11-13 12:49:19,324 INFO L78 Accepts]: Start accepts. Automaton has 168840 states and 186667 transitions. Word has length 916 [2024-11-13 12:49:19,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:49:19,325 INFO L471 AbstractCegarLoop]: Abstraction has 168840 states and 186667 transitions. [2024-11-13 12:49:19,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 205.0) internal successors, (615), 3 states have internal predecessors, (615), 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) [2024-11-13 12:49:19,326 INFO L276 IsEmpty]: Start isEmpty. Operand 168840 states and 186667 transitions. [2024-11-13 12:49:19,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 934 [2024-11-13 12:49:19,346 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:49:19,346 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:49:19,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-13 12:49:19,347 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:49:19,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:49:19,347 INFO L85 PathProgramCache]: Analyzing trace with hash 802074461, now seen corresponding path program 1 times [2024-11-13 12:49:19,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:49:19,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097294251] [2024-11-13 12:49:19,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:49:19,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:49:19,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:49:20,731 INFO L134 CoverageAnalysis]: Checked inductivity of 803 backedges. 570 proven. 0 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2024-11-13 12:49:20,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:49:20,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097294251] [2024-11-13 12:49:20,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097294251] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:49:20,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:49:20,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 12:49:20,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469965308] [2024-11-13 12:49:20,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:49:20,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 12:49:20,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:49:20,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 12:49:20,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:49:20,736 INFO L87 Difference]: Start difference. First operand 168840 states and 186667 transitions. Second operand has 4 states, 4 states have (on average 175.5) internal successors, (702), 4 states have internal predecessors, (702), 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) [2024-11-13 12:49:38,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:49:38,783 INFO L93 Difference]: Finished difference Result 542708 states and 605284 transitions. [2024-11-13 12:49:38,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 12:49:38,784 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 175.5) internal successors, (702), 4 states have internal predecessors, (702), 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 933 [2024-11-13 12:49:38,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:49:39,261 INFO L225 Difference]: With dead ends: 542708 [2024-11-13 12:49:39,262 INFO L226 Difference]: Without dead ends: 376600 [2024-11-13 12:49:39,798 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 [2024-11-13 12:49:39,799 INFO L432 NwaCegarLoop]: 1188 mSDtfsCounter, 3281 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 9061 mSolverCounterSat, 2654 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3281 SdHoareTripleChecker+Valid, 1459 SdHoareTripleChecker+Invalid, 11715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2654 IncrementalHoareTripleChecker+Valid, 9061 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.8s IncrementalHoareTripleChecker+Time [2024-11-13 12:49:39,799 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3281 Valid, 1459 Invalid, 11715 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2654 Valid, 9061 Invalid, 0 Unknown, 0 Unchecked, 15.8s Time] [2024-11-13 12:49:40,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376600 states. [2024-11-13 12:49:44,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376600 to 365516. [2024-11-13 12:49:44,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365516 states, 365515 states have (on average 1.096597950836491) internal successors, (400823), 365515 states have internal predecessors, (400823), 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) [2024-11-13 12:49:45,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365516 states to 365516 states and 400823 transitions. [2024-11-13 12:49:45,838 INFO L78 Accepts]: Start accepts. Automaton has 365516 states and 400823 transitions. Word has length 933 [2024-11-13 12:49:45,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:49:45,839 INFO L471 AbstractCegarLoop]: Abstraction has 365516 states and 400823 transitions. [2024-11-13 12:49:45,839 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 175.5) internal successors, (702), 4 states have internal predecessors, (702), 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) [2024-11-13 12:49:45,839 INFO L276 IsEmpty]: Start isEmpty. Operand 365516 states and 400823 transitions. [2024-11-13 12:49:45,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1010 [2024-11-13 12:49:45,851 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:49:45,851 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:49:45,851 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-13 12:49:45,852 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:49:45,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:49:45,852 INFO L85 PathProgramCache]: Analyzing trace with hash -499199938, now seen corresponding path program 1 times [2024-11-13 12:49:45,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:49:45,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787182726] [2024-11-13 12:49:45,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:49:45,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:49:46,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:49:47,195 INFO L134 CoverageAnalysis]: Checked inductivity of 1113 backedges. 523 proven. 0 refuted. 0 times theorem prover too weak. 590 trivial. 0 not checked. [2024-11-13 12:49:47,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:49:47,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787182726] [2024-11-13 12:49:47,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787182726] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:49:47,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:49:47,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:49:47,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649028615] [2024-11-13 12:49:47,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:49:47,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:49:47,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:49:47,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:49:47,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:49:47,199 INFO L87 Difference]: Start difference. First operand 365516 states and 400823 transitions. Second operand has 3 states, 3 states have (on average 214.66666666666666) internal successors, (644), 3 states have internal predecessors, (644), 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) [2024-11-13 12:49:59,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:49:59,455 INFO L93 Difference]: Finished difference Result 737864 states and 808642 transitions. [2024-11-13 12:49:59,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:49:59,455 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 214.66666666666666) internal successors, (644), 3 states have internal predecessors, (644), 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 1009 [2024-11-13 12:49:59,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:49:59,907 INFO L225 Difference]: With dead ends: 737864 [2024-11-13 12:49:59,907 INFO L226 Difference]: Without dead ends: 362793 [2024-11-13 12:49:59,998 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 [2024-11-13 12:49:59,999 INFO L432 NwaCegarLoop]: 2877 mSDtfsCounter, 1360 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 4311 mSolverCounterSat, 957 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1360 SdHoareTripleChecker+Valid, 3060 SdHoareTripleChecker+Invalid, 5268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 957 IncrementalHoareTripleChecker+Valid, 4311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2024-11-13 12:49:59,999 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1360 Valid, 3060 Invalid, 5268 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [957 Valid, 4311 Invalid, 0 Unknown, 0 Unchecked, 8.9s Time] [2024-11-13 12:50:00,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362793 states.