./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_state_machine.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/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_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_state_machine.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/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 64bit --witnessprinter.graph.data.programhash 9e75acc5dea77a52694df76103c51840072f3a9cdbcfeb4df332aef49d637e9f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 13:30:16,427 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 13:30:16,549 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-13 13:30:16,556 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 13:30:16,557 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 13:30:16,605 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 13:30:16,607 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 13:30:16,607 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 13:30:16,608 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 13:30:16,608 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 13:30:16,609 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 13:30:16,610 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 13:30:16,610 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 13:30:16,610 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 13:30:16,611 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 13:30:16,611 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 13:30:16,611 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 13:30:16,611 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 13:30:16,611 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 13:30:16,612 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 13:30:16,612 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 13:30:16,613 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 13:30:16,613 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 13:30:16,613 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 13:30:16,613 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 13:30:16,613 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 13:30:16,613 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 13:30:16,614 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 13:30:16,614 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 13:30:16,614 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:30:16,615 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 13:30:16,615 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 13:30:16,615 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 13:30:16,615 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 13:30:16,615 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 13:30:16,615 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 13:30:16,616 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 13:30:16,617 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 13:30:16,617 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 13:30:16,617 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_7975eb89-1927-4a49-bb12-fadf7d77cfa9/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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e75acc5dea77a52694df76103c51840072f3a9cdbcfeb4df332aef49d637e9f [2024-11-13 13:30:17,020 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 13:30:17,032 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 13:30:17,038 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 13:30:17,040 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 13:30:17,040 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 13:30:17,042 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_state_machine.c Unable to find full path for "g++" [2024-11-13 13:30:19,232 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 13:30:19,638 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 13:30:19,639 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_state_machine.c [2024-11-13 13:30:19,655 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/data/2f6b66ff7/fdbd871228e8482e9276e17e179941e6/FLAGd9d7a8e6e [2024-11-13 13:30:19,671 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/data/2f6b66ff7/fdbd871228e8482e9276e17e179941e6 [2024-11-13 13:30:19,674 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 13:30:19,676 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 13:30:19,680 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 13:30:19,681 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 13:30:19,686 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 13:30:19,687 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:30:19" (1/1) ... [2024-11-13 13:30:19,688 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37eab7aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:19, skipping insertion in model container [2024-11-13 13:30:19,689 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:30:19" (1/1) ... [2024-11-13 13:30:19,754 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 13:30:19,997 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_7975eb89-1927-4a49-bb12-fadf7d77cfa9/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_state_machine.c[1256,1269] [2024-11-13 13:30:20,272 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:30:20,285 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 13:30:20,294 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_7975eb89-1927-4a49-bb12-fadf7d77cfa9/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_state_machine.c[1256,1269] [2024-11-13 13:30:20,467 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:30:20,484 INFO L204 MainTranslator]: Completed translation [2024-11-13 13:30:20,484 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:20 WrapperNode [2024-11-13 13:30:20,485 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 13:30:20,486 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 13:30:20,487 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 13:30:20,487 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 13:30:20,497 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:20" (1/1) ... [2024-11-13 13:30:20,525 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:20" (1/1) ... [2024-11-13 13:30:20,806 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1678 [2024-11-13 13:30:20,807 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 13:30:20,808 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 13:30:20,808 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 13:30:20,809 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 13:30:20,823 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:20" (1/1) ... [2024-11-13 13:30:20,823 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:20" (1/1) ... [2024-11-13 13:30:20,864 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:20" (1/1) ... [2024-11-13 13:30:20,929 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 13:30:20,929 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:20" (1/1) ... [2024-11-13 13:30:20,929 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:20" (1/1) ... [2024-11-13 13:30:21,011 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:20" (1/1) ... [2024-11-13 13:30:21,023 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:20" (1/1) ... [2024-11-13 13:30:21,042 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:20" (1/1) ... [2024-11-13 13:30:21,111 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:20" (1/1) ... [2024-11-13 13:30:21,168 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 13:30:21,169 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 13:30:21,170 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 13:30:21,170 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 13:30:21,172 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:20" (1/1) ... [2024-11-13 13:30:21,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:30:21,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:30:21,220 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 13:30:21,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 13:30:21,261 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 13:30:21,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 13:30:21,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 13:30:21,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 13:30:21,654 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 13:30:21,657 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 13:30:24,964 INFO L? ?]: Removed 1068 outVars from TransFormulas that were not future-live. [2024-11-13 13:30:24,964 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 13:30:24,990 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 13:30:24,991 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 13:30:24,991 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:30:24 BoogieIcfgContainer [2024-11-13 13:30:24,992 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 13:30:24,995 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 13:30:24,995 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 13:30:25,001 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 13:30:25,002 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:30:19" (1/3) ... [2024-11-13 13:30:25,003 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77d07c77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:30:25, skipping insertion in model container [2024-11-13 13:30:25,003 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:20" (2/3) ... [2024-11-13 13:30:25,003 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77d07c77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:30:25, skipping insertion in model container [2024-11-13 13:30:25,003 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:30:24" (3/3) ... [2024-11-13 13:30:25,005 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.sw_state_machine.c [2024-11-13 13:30:25,023 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 13:30:25,025 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.sw_state_machine.c that has 1 procedures, 498 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 13:30:25,118 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 13:30:25,137 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;@4ebc13f0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 13:30:25,139 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 13:30:25,147 INFO L276 IsEmpty]: Start isEmpty. Operand has 498 states, 496 states have (on average 1.497983870967742) internal successors, (743), 497 states have internal predecessors, (743), 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 13:30:25,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-13 13:30:25,160 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:30:25,160 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:30:25,162 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:30:25,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:30:25,169 INFO L85 PathProgramCache]: Analyzing trace with hash -1640998627, now seen corresponding path program 1 times [2024-11-13 13:30:25,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:30:25,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599951297] [2024-11-13 13:30:25,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:30:25,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:30:25,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:30:26,114 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 13:30:26,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:30:26,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599951297] [2024-11-13 13:30:26,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599951297] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:30:26,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:30:26,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 13:30:26,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763137886] [2024-11-13 13:30:26,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:30:26,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:30:26,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:30:26,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:30:26,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:30:26,155 INFO L87 Difference]: Start difference. First operand has 498 states, 496 states have (on average 1.497983870967742) internal successors, (743), 497 states have internal predecessors, (743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 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 13:30:26,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:30:26,324 INFO L93 Difference]: Finished difference Result 945 states and 1413 transitions. [2024-11-13 13:30:26,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:30:26,330 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 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 33 [2024-11-13 13:30:26,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:30:26,349 INFO L225 Difference]: With dead ends: 945 [2024-11-13 13:30:26,349 INFO L226 Difference]: Without dead ends: 497 [2024-11-13 13:30:26,355 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:30:26,361 INFO L432 NwaCegarLoop]: 737 mSDtfsCounter, 0 mSDsluCounter, 1468 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2205 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:30:26,363 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2205 Invalid, 11 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:30:26,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2024-11-13 13:30:26,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 497. [2024-11-13 13:30:26,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 497 states, 496 states have (on average 1.4939516129032258) internal successors, (741), 496 states have internal predecessors, (741), 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 13:30:26,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 497 states and 741 transitions. [2024-11-13 13:30:26,463 INFO L78 Accepts]: Start accepts. Automaton has 497 states and 741 transitions. Word has length 33 [2024-11-13 13:30:26,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:30:26,464 INFO L471 AbstractCegarLoop]: Abstraction has 497 states and 741 transitions. [2024-11-13 13:30:26,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 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 13:30:26,464 INFO L276 IsEmpty]: Start isEmpty. Operand 497 states and 741 transitions. [2024-11-13 13:30:26,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-13 13:30:26,465 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:30:26,466 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:30:26,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 13:30:26,468 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:30:26,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:30:26,469 INFO L85 PathProgramCache]: Analyzing trace with hash 670345450, now seen corresponding path program 1 times [2024-11-13 13:30:26,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:30:26,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258667379] [2024-11-13 13:30:26,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:30:26,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:30:26,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:30:26,815 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 13:30:26,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:30:26,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258667379] [2024-11-13 13:30:26,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258667379] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:30:26,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:30:26,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 13:30:26,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653997604] [2024-11-13 13:30:26,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:30:26,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:30:26,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:30:26,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:30:26,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:30:26,820 INFO L87 Difference]: Start difference. First operand 497 states and 741 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 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 13:30:26,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:30:26,894 INFO L93 Difference]: Finished difference Result 946 states and 1411 transitions. [2024-11-13 13:30:26,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:30:26,894 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 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 34 [2024-11-13 13:30:26,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:30:26,903 INFO L225 Difference]: With dead ends: 946 [2024-11-13 13:30:26,903 INFO L226 Difference]: Without dead ends: 499 [2024-11-13 13:30:26,904 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:30:26,905 INFO L432 NwaCegarLoop]: 737 mSDtfsCounter, 0 mSDsluCounter, 1464 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2201 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:30:26,906 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2201 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:30:26,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2024-11-13 13:30:26,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 499. [2024-11-13 13:30:26,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 499 states, 498 states have (on average 1.4919678714859437) internal successors, (743), 498 states have internal predecessors, (743), 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 13:30:26,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 743 transitions. [2024-11-13 13:30:26,931 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 743 transitions. Word has length 34 [2024-11-13 13:30:26,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:30:26,931 INFO L471 AbstractCegarLoop]: Abstraction has 499 states and 743 transitions. [2024-11-13 13:30:26,932 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 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 13:30:26,932 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 743 transitions. [2024-11-13 13:30:26,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-13 13:30:26,933 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:30:26,933 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:30:26,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 13:30:26,934 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:30:26,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:30:26,934 INFO L85 PathProgramCache]: Analyzing trace with hash -1792093290, now seen corresponding path program 1 times [2024-11-13 13:30:26,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:30:26,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335184570] [2024-11-13 13:30:26,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:30:26,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:30:27,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:30:27,381 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 13:30:27,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:30:27,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335184570] [2024-11-13 13:30:27,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335184570] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:30:27,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:30:27,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 13:30:27,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835309133] [2024-11-13 13:30:27,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:30:27,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:30:27,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:30:27,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:30:27,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:30:27,385 INFO L87 Difference]: Start difference. First operand 499 states and 743 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 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 13:30:27,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:30:27,621 INFO L93 Difference]: Finished difference Result 1355 states and 2020 transitions. [2024-11-13 13:30:27,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:30:27,622 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 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 35 [2024-11-13 13:30:27,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:30:27,631 INFO L225 Difference]: With dead ends: 1355 [2024-11-13 13:30:27,631 INFO L226 Difference]: Without dead ends: 906 [2024-11-13 13:30:27,632 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:30:27,633 INFO L432 NwaCegarLoop]: 725 mSDtfsCounter, 1927 mSDsluCounter, 1444 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1927 SdHoareTripleChecker+Valid, 2169 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:30:27,633 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1927 Valid, 2169 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:30:27,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 906 states. [2024-11-13 13:30:27,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 906 to 501. [2024-11-13 13:30:27,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 500 states have (on average 1.49) internal successors, (745), 500 states have internal predecessors, (745), 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 13:30:27,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 745 transitions. [2024-11-13 13:30:27,691 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 745 transitions. Word has length 35 [2024-11-13 13:30:27,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:30:27,691 INFO L471 AbstractCegarLoop]: Abstraction has 501 states and 745 transitions. [2024-11-13 13:30:27,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 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 13:30:27,692 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 745 transitions. [2024-11-13 13:30:27,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2024-11-13 13:30:27,713 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:30:27,714 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 13:30:27,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 13:30:27,717 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:30:27,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:30:27,718 INFO L85 PathProgramCache]: Analyzing trace with hash 203867420, now seen corresponding path program 1 times [2024-11-13 13:30:27,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:30:27,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52780660] [2024-11-13 13:30:27,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:30:27,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:30:29,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:30:31,822 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:30:31,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:30:31,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52780660] [2024-11-13 13:30:31,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52780660] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:30:31,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:30:31,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 13:30:31,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502554287] [2024-11-13 13:30:31,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:30:31,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:30:31,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:30:31,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:30:31,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:30:31,829 INFO L87 Difference]: Start difference. First operand 501 states and 745 transitions. Second operand has 5 states, 5 states have (on average 51.6) internal successors, (258), 5 states have internal predecessors, (258), 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 13:30:32,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:30:32,082 INFO L93 Difference]: Finished difference Result 1326 states and 1976 transitions. [2024-11-13 13:30:32,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:30:32,082 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 51.6) internal successors, (258), 5 states have internal predecessors, (258), 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 258 [2024-11-13 13:30:32,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:30:32,088 INFO L225 Difference]: With dead ends: 1326 [2024-11-13 13:30:32,089 INFO L226 Difference]: Without dead ends: 877 [2024-11-13 13:30:32,091 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:30:32,093 INFO L432 NwaCegarLoop]: 716 mSDtfsCounter, 1826 mSDsluCounter, 1427 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1826 SdHoareTripleChecker+Valid, 2143 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 13:30:32,096 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1826 Valid, 2143 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 13:30:32,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 877 states. [2024-11-13 13:30:32,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 877 to 520. [2024-11-13 13:30:32,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 519 states have (on average 1.4836223506743738) internal successors, (770), 519 states have internal predecessors, (770), 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 13:30:32,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 770 transitions. [2024-11-13 13:30:32,134 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 770 transitions. Word has length 258 [2024-11-13 13:30:32,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:30:32,136 INFO L471 AbstractCegarLoop]: Abstraction has 520 states and 770 transitions. [2024-11-13 13:30:32,137 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 51.6) internal successors, (258), 5 states have internal predecessors, (258), 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 13:30:32,137 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 770 transitions. [2024-11-13 13:30:32,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2024-11-13 13:30:32,147 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:30:32,147 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 13:30:32,147 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 13:30:32,148 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:30:32,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:30:32,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1137388347, now seen corresponding path program 1 times [2024-11-13 13:30:32,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:30:32,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327972317] [2024-11-13 13:30:32,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:30:32,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:30:34,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:30:36,411 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:30:36,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:30:36,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327972317] [2024-11-13 13:30:36,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327972317] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:30:36,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:30:36,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 13:30:36,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691138990] [2024-11-13 13:30:36,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:30:36,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:30:36,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:30:36,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:30:36,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:30:36,420 INFO L87 Difference]: Start difference. First operand 520 states and 770 transitions. Second operand has 5 states, 5 states have (on average 51.8) internal successors, (259), 5 states have internal predecessors, (259), 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 13:30:36,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:30:36,762 INFO L93 Difference]: Finished difference Result 1326 states and 1974 transitions. [2024-11-13 13:30:36,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:30:36,764 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 51.8) internal successors, (259), 5 states have internal predecessors, (259), 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 259 [2024-11-13 13:30:36,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:30:36,768 INFO L225 Difference]: With dead ends: 1326 [2024-11-13 13:30:36,768 INFO L226 Difference]: Without dead ends: 877 [2024-11-13 13:30:36,771 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:30:36,772 INFO L432 NwaCegarLoop]: 721 mSDtfsCounter, 1784 mSDsluCounter, 1440 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1784 SdHoareTripleChecker+Valid, 2161 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 13:30:36,776 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1784 Valid, 2161 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 13:30:36,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 877 states. [2024-11-13 13:30:36,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 877 to 595. [2024-11-13 13:30:36,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 595 states, 594 states have (on average 1.4831649831649831) internal successors, (881), 594 states have internal predecessors, (881), 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 13:30:36,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 881 transitions. [2024-11-13 13:30:36,820 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 881 transitions. Word has length 259 [2024-11-13 13:30:36,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:30:36,820 INFO L471 AbstractCegarLoop]: Abstraction has 595 states and 881 transitions. [2024-11-13 13:30:36,821 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 51.8) internal successors, (259), 5 states have internal predecessors, (259), 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 13:30:36,821 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 881 transitions. [2024-11-13 13:30:36,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2024-11-13 13:30:36,825 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:30:36,826 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 13:30:36,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 13:30:36,826 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:30:36,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:30:36,827 INFO L85 PathProgramCache]: Analyzing trace with hash -925975352, now seen corresponding path program 1 times [2024-11-13 13:30:36,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:30:36,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779999548] [2024-11-13 13:30:36,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:30:36,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:30:38,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:30:40,069 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:30:40,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:30:40,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779999548] [2024-11-13 13:30:40,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779999548] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:30:40,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:30:40,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 13:30:40,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146495730] [2024-11-13 13:30:40,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:30:40,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:30:40,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:30:40,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:30:40,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:30:40,074 INFO L87 Difference]: Start difference. First operand 595 states and 881 transitions. Second operand has 5 states, 5 states have (on average 52.2) internal successors, (261), 5 states have internal predecessors, (261), 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 13:30:40,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:30:40,322 INFO L93 Difference]: Finished difference Result 1326 states and 1972 transitions. [2024-11-13 13:30:40,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:30:40,323 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 52.2) internal successors, (261), 5 states have internal predecessors, (261), 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 261 [2024-11-13 13:30:40,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:30:40,327 INFO L225 Difference]: With dead ends: 1326 [2024-11-13 13:30:40,328 INFO L226 Difference]: Without dead ends: 877 [2024-11-13 13:30:40,331 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:30:40,333 INFO L432 NwaCegarLoop]: 720 mSDtfsCounter, 1746 mSDsluCounter, 1440 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1746 SdHoareTripleChecker+Valid, 2160 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:30:40,335 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1746 Valid, 2160 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:30:40,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 877 states. [2024-11-13 13:30:40,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 877 to 662. [2024-11-13 13:30:40,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 662 states, 661 states have (on average 1.4826021180030258) internal successors, (980), 661 states have internal predecessors, (980), 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 13:30:40,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 980 transitions. [2024-11-13 13:30:40,367 INFO L78 Accepts]: Start accepts. Automaton has 662 states and 980 transitions. Word has length 261 [2024-11-13 13:30:40,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:30:40,369 INFO L471 AbstractCegarLoop]: Abstraction has 662 states and 980 transitions. [2024-11-13 13:30:40,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 52.2) internal successors, (261), 5 states have internal predecessors, (261), 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 13:30:40,369 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states and 980 transitions. [2024-11-13 13:30:40,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2024-11-13 13:30:40,377 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:30:40,378 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 13:30:40,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 13:30:40,378 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:30:40,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:30:40,379 INFO L85 PathProgramCache]: Analyzing trace with hash 954610837, now seen corresponding path program 1 times [2024-11-13 13:30:40,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:30:40,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929934889] [2024-11-13 13:30:40,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:30:40,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:30:41,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:30:43,604 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:30:43,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:30:43,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929934889] [2024-11-13 13:30:43,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929934889] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:30:43,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:30:43,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 13:30:43,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895024000] [2024-11-13 13:30:43,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:30:43,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:30:43,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:30:43,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:30:43,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:30:43,609 INFO L87 Difference]: Start difference. First operand 662 states and 980 transitions. Second operand has 5 states, 5 states have (on average 52.4) internal successors, (262), 5 states have internal predecessors, (262), 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 13:30:43,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:30:43,832 INFO L93 Difference]: Finished difference Result 1326 states and 1971 transitions. [2024-11-13 13:30:43,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:30:43,833 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 52.4) internal successors, (262), 5 states have internal predecessors, (262), 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 262 [2024-11-13 13:30:43,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:30:43,838 INFO L225 Difference]: With dead ends: 1326 [2024-11-13 13:30:43,838 INFO L226 Difference]: Without dead ends: 877 [2024-11-13 13:30:43,839 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:30:43,841 INFO L432 NwaCegarLoop]: 720 mSDtfsCounter, 1707 mSDsluCounter, 1440 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1707 SdHoareTripleChecker+Valid, 2160 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:30:43,842 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1707 Valid, 2160 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:30:43,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 877 states. [2024-11-13 13:30:43,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 877 to 734. [2024-11-13 13:30:43,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 734 states, 733 states have (on average 1.4829467939972716) internal successors, (1087), 733 states have internal predecessors, (1087), 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 13:30:43,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 734 states to 734 states and 1087 transitions. [2024-11-13 13:30:43,868 INFO L78 Accepts]: Start accepts. Automaton has 734 states and 1087 transitions. Word has length 262 [2024-11-13 13:30:43,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:30:43,869 INFO L471 AbstractCegarLoop]: Abstraction has 734 states and 1087 transitions. [2024-11-13 13:30:43,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 52.4) internal successors, (262), 5 states have internal predecessors, (262), 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 13:30:43,869 INFO L276 IsEmpty]: Start isEmpty. Operand 734 states and 1087 transitions. [2024-11-13 13:30:43,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2024-11-13 13:30:43,875 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:30:43,876 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 13:30:43,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 13:30:43,877 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:30:43,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:30:43,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1015955942, now seen corresponding path program 1 times [2024-11-13 13:30:43,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:30:43,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948971503] [2024-11-13 13:30:43,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:30:43,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:30:45,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:30:47,143 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:30:47,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:30:47,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948971503] [2024-11-13 13:30:47,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948971503] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:30:47,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:30:47,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 13:30:47,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319117566] [2024-11-13 13:30:47,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:30:47,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:30:47,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:30:47,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:30:47,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:30:47,147 INFO L87 Difference]: Start difference. First operand 734 states and 1087 transitions. Second operand has 5 states, 5 states have (on average 52.6) internal successors, (263), 5 states have internal predecessors, (263), 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 13:30:47,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:30:47,360 INFO L93 Difference]: Finished difference Result 1329 states and 1975 transitions. [2024-11-13 13:30:47,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:30:47,360 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 52.6) internal successors, (263), 5 states have internal predecessors, (263), 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 263 [2024-11-13 13:30:47,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:30:47,367 INFO L225 Difference]: With dead ends: 1329 [2024-11-13 13:30:47,367 INFO L226 Difference]: Without dead ends: 880 [2024-11-13 13:30:47,368 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:30:47,371 INFO L432 NwaCegarLoop]: 720 mSDtfsCounter, 1638 mSDsluCounter, 1436 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1638 SdHoareTripleChecker+Valid, 2156 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:30:47,371 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1638 Valid, 2156 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:30:47,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 880 states. [2024-11-13 13:30:47,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 880 to 878. [2024-11-13 13:30:47,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 878 states, 877 states have (on average 1.48460661345496) internal successors, (1302), 877 states have internal predecessors, (1302), 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 13:30:47,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 878 states to 878 states and 1302 transitions. [2024-11-13 13:30:47,401 INFO L78 Accepts]: Start accepts. Automaton has 878 states and 1302 transitions. Word has length 263 [2024-11-13 13:30:47,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:30:47,404 INFO L471 AbstractCegarLoop]: Abstraction has 878 states and 1302 transitions. [2024-11-13 13:30:47,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 52.6) internal successors, (263), 5 states have internal predecessors, (263), 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 13:30:47,404 INFO L276 IsEmpty]: Start isEmpty. Operand 878 states and 1302 transitions. [2024-11-13 13:30:47,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2024-11-13 13:30:47,408 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:30:47,409 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 13:30:47,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 13:30:47,410 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:30:47,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:30:47,410 INFO L85 PathProgramCache]: Analyzing trace with hash -1399510351, now seen corresponding path program 1 times [2024-11-13 13:30:47,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:30:47,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666263534] [2024-11-13 13:30:47,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:30:47,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:30:49,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:30:50,507 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:30:50,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:30:50,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666263534] [2024-11-13 13:30:50,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666263534] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:30:50,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:30:50,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 13:30:50,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111545470] [2024-11-13 13:30:50,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:30:50,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 13:30:50,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:30:50,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 13:30:50,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:30:50,511 INFO L87 Difference]: Start difference. First operand 878 states and 1302 transitions. Second operand has 7 states, 7 states have (on average 37.714285714285715) internal successors, (264), 7 states have internal predecessors, (264), 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 13:30:50,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:30:50,834 INFO L93 Difference]: Finished difference Result 1528 states and 2271 transitions. [2024-11-13 13:30:50,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 13:30:50,836 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 37.714285714285715) internal successors, (264), 7 states have internal predecessors, (264), 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 264 [2024-11-13 13:30:50,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:30:50,843 INFO L225 Difference]: With dead ends: 1528 [2024-11-13 13:30:50,843 INFO L226 Difference]: Without dead ends: 941 [2024-11-13 13:30:50,844 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-13 13:30:50,845 INFO L432 NwaCegarLoop]: 717 mSDtfsCounter, 1893 mSDsluCounter, 2689 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1893 SdHoareTripleChecker+Valid, 3406 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 13:30:50,845 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1893 Valid, 3406 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 13:30:50,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 941 states. [2024-11-13 13:30:50,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 941 to 880. [2024-11-13 13:30:50,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 880 states, 879 states have (on average 1.483503981797497) internal successors, (1304), 879 states have internal predecessors, (1304), 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 13:30:50,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 880 states and 1304 transitions. [2024-11-13 13:30:50,879 INFO L78 Accepts]: Start accepts. Automaton has 880 states and 1304 transitions. Word has length 264 [2024-11-13 13:30:50,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:30:50,879 INFO L471 AbstractCegarLoop]: Abstraction has 880 states and 1304 transitions. [2024-11-13 13:30:50,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 37.714285714285715) internal successors, (264), 7 states have internal predecessors, (264), 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 13:30:50,880 INFO L276 IsEmpty]: Start isEmpty. Operand 880 states and 1304 transitions. [2024-11-13 13:30:50,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2024-11-13 13:30:50,884 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:30:50,884 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 13:30:50,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 13:30:50,885 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:30:50,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:30:50,890 INFO L85 PathProgramCache]: Analyzing trace with hash -1834526597, now seen corresponding path program 1 times [2024-11-13 13:30:50,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:30:50,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69467007] [2024-11-13 13:30:50,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:30:50,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:30:52,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:30:53,509 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:30:53,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:30:53,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69467007] [2024-11-13 13:30:53,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69467007] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:30:53,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:30:53,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 13:30:53,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015879688] [2024-11-13 13:30:53,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:30:53,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 13:30:53,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:30:53,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 13:30:53,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:30:53,513 INFO L87 Difference]: Start difference. First operand 880 states and 1304 transitions. Second operand has 7 states, 7 states have (on average 37.857142857142854) internal successors, (265), 7 states have internal predecessors, (265), 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 13:30:53,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:30:53,821 INFO L93 Difference]: Finished difference Result 1474 states and 2189 transitions. [2024-11-13 13:30:53,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 13:30:53,822 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 37.857142857142854) internal successors, (265), 7 states have internal predecessors, (265), 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 265 [2024-11-13 13:30:53,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:30:53,827 INFO L225 Difference]: With dead ends: 1474 [2024-11-13 13:30:53,827 INFO L226 Difference]: Without dead ends: 891 [2024-11-13 13:30:53,828 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-13 13:30:53,829 INFO L432 NwaCegarLoop]: 719 mSDtfsCounter, 1733 mSDsluCounter, 2871 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1733 SdHoareTripleChecker+Valid, 3590 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 13:30:53,830 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1733 Valid, 3590 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 13:30:53,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 891 states. [2024-11-13 13:30:53,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 891 to 882. [2024-11-13 13:30:53,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 882 states, 881 states have (on average 1.4824063564131669) internal successors, (1306), 881 states have internal predecessors, (1306), 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 13:30:53,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 882 states to 882 states and 1306 transitions. [2024-11-13 13:30:53,869 INFO L78 Accepts]: Start accepts. Automaton has 882 states and 1306 transitions. Word has length 265 [2024-11-13 13:30:53,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:30:53,870 INFO L471 AbstractCegarLoop]: Abstraction has 882 states and 1306 transitions. [2024-11-13 13:30:53,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 37.857142857142854) internal successors, (265), 7 states have internal predecessors, (265), 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 13:30:53,870 INFO L276 IsEmpty]: Start isEmpty. Operand 882 states and 1306 transitions. [2024-11-13 13:30:53,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2024-11-13 13:30:53,875 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:30:53,876 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 13:30:53,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-13 13:30:53,876 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:30:53,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:30:53,878 INFO L85 PathProgramCache]: Analyzing trace with hash -1869372065, now seen corresponding path program 1 times [2024-11-13 13:30:53,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:30:53,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974013886] [2024-11-13 13:30:53,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:30:53,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:30:55,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:30:56,672 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:30:56,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:30:56,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974013886] [2024-11-13 13:30:56,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974013886] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:30:56,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:30:56,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 13:30:56,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153792386] [2024-11-13 13:30:56,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:30:56,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:30:56,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:30:56,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:30:56,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:30:56,679 INFO L87 Difference]: Start difference. First operand 882 states and 1306 transitions. Second operand has 5 states, 5 states have (on average 53.0) internal successors, (265), 5 states have internal predecessors, (265), 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 13:30:56,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:30:56,883 INFO L93 Difference]: Finished difference Result 1513 states and 2244 transitions. [2024-11-13 13:30:56,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:30:56,884 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 53.0) internal successors, (265), 5 states have internal predecessors, (265), 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 265 [2024-11-13 13:30:56,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:30:56,889 INFO L225 Difference]: With dead ends: 1513 [2024-11-13 13:30:56,889 INFO L226 Difference]: Without dead ends: 882 [2024-11-13 13:30:56,891 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:30:56,891 INFO L432 NwaCegarLoop]: 720 mSDtfsCounter, 1723 mSDsluCounter, 1440 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1723 SdHoareTripleChecker+Valid, 2160 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:30:56,892 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1723 Valid, 2160 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:30:56,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2024-11-13 13:30:56,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 882. [2024-11-13 13:30:56,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 882 states, 881 states have (on average 1.4812712826333712) internal successors, (1305), 881 states have internal predecessors, (1305), 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 13:30:56,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 882 states to 882 states and 1305 transitions. [2024-11-13 13:30:56,926 INFO L78 Accepts]: Start accepts. Automaton has 882 states and 1305 transitions. Word has length 265 [2024-11-13 13:30:56,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:30:56,928 INFO L471 AbstractCegarLoop]: Abstraction has 882 states and 1305 transitions. [2024-11-13 13:30:56,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 53.0) internal successors, (265), 5 states have internal predecessors, (265), 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 13:30:56,929 INFO L276 IsEmpty]: Start isEmpty. Operand 882 states and 1305 transitions. [2024-11-13 13:30:56,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2024-11-13 13:30:56,934 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:30:56,934 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 13:30:56,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-13 13:30:56,934 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:30:56,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:30:56,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1374458515, now seen corresponding path program 1 times [2024-11-13 13:30:56,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:30:56,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051044896] [2024-11-13 13:30:56,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:30:56,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:30:58,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:30:59,324 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:30:59,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:30:59,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051044896] [2024-11-13 13:30:59,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051044896] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:30:59,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:30:59,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 13:30:59,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364271290] [2024-11-13 13:30:59,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:30:59,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 13:30:59,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:30:59,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 13:30:59,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:30:59,331 INFO L87 Difference]: Start difference. First operand 882 states and 1305 transitions. Second operand has 7 states, 7 states have (on average 38.0) internal successors, (266), 7 states have internal predecessors, (266), 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 13:30:59,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:30:59,588 INFO L93 Difference]: Finished difference Result 1572 states and 2331 transitions. [2024-11-13 13:30:59,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 13:30:59,588 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 38.0) internal successors, (266), 7 states have internal predecessors, (266), 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 266 [2024-11-13 13:30:59,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:30:59,593 INFO L225 Difference]: With dead ends: 1572 [2024-11-13 13:30:59,593 INFO L226 Difference]: Without dead ends: 945 [2024-11-13 13:30:59,594 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-13 13:30:59,596 INFO L432 NwaCegarLoop]: 717 mSDtfsCounter, 1908 mSDsluCounter, 2777 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1908 SdHoareTripleChecker+Valid, 3494 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 13:30:59,597 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1908 Valid, 3494 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 13:30:59,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 945 states. [2024-11-13 13:30:59,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 945 to 884. [2024-11-13 13:30:59,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 884 states, 883 states have (on average 1.480181200453001) internal successors, (1307), 883 states have internal predecessors, (1307), 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 13:30:59,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 884 states to 884 states and 1307 transitions. [2024-11-13 13:30:59,633 INFO L78 Accepts]: Start accepts. Automaton has 884 states and 1307 transitions. Word has length 266 [2024-11-13 13:30:59,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:30:59,633 INFO L471 AbstractCegarLoop]: Abstraction has 884 states and 1307 transitions. [2024-11-13 13:30:59,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 38.0) internal successors, (266), 7 states have internal predecessors, (266), 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 13:30:59,634 INFO L276 IsEmpty]: Start isEmpty. Operand 884 states and 1307 transitions. [2024-11-13 13:30:59,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2024-11-13 13:30:59,638 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:30:59,639 INFO L215 NwaCegarLoop]: trace histogram [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 13:30:59,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-13 13:30:59,639 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:30:59,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:30:59,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1516188732, now seen corresponding path program 1 times [2024-11-13 13:30:59,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:30:59,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908957367] [2024-11-13 13:30:59,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:30:59,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:31:01,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:31:02,129 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:31:02,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:31:02,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908957367] [2024-11-13 13:31:02,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908957367] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:31:02,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:31:02,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 13:31:02,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019163629] [2024-11-13 13:31:02,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:31:02,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 13:31:02,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:31:02,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 13:31:02,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:31:02,132 INFO L87 Difference]: Start difference. First operand 884 states and 1307 transitions. Second operand has 7 states, 7 states have (on average 38.142857142857146) internal successors, (267), 7 states have internal predecessors, (267), 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 13:31:02,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:31:02,375 INFO L93 Difference]: Finished difference Result 1396 states and 2070 transitions. [2024-11-13 13:31:02,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 13:31:02,376 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 38.142857142857146) internal successors, (267), 7 states have internal predecessors, (267), 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 267 [2024-11-13 13:31:02,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:31:02,381 INFO L225 Difference]: With dead ends: 1396 [2024-11-13 13:31:02,381 INFO L226 Difference]: Without dead ends: 947 [2024-11-13 13:31:02,382 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-13 13:31:02,384 INFO L432 NwaCegarLoop]: 717 mSDtfsCounter, 1815 mSDsluCounter, 2687 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1815 SdHoareTripleChecker+Valid, 3404 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:31:02,386 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1815 Valid, 3404 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:31:02,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 947 states. [2024-11-13 13:31:02,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 947 to 887. [2024-11-13 13:31:02,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 887 states, 886 states have (on average 1.479683972911964) internal successors, (1311), 886 states have internal predecessors, (1311), 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 13:31:02,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 887 states to 887 states and 1311 transitions. [2024-11-13 13:31:02,414 INFO L78 Accepts]: Start accepts. Automaton has 887 states and 1311 transitions. Word has length 267 [2024-11-13 13:31:02,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:31:02,415 INFO L471 AbstractCegarLoop]: Abstraction has 887 states and 1311 transitions. [2024-11-13 13:31:02,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 38.142857142857146) internal successors, (267), 7 states have internal predecessors, (267), 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 13:31:02,415 INFO L276 IsEmpty]: Start isEmpty. Operand 887 states and 1311 transitions. [2024-11-13 13:31:02,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2024-11-13 13:31:02,419 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:31:02,419 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 13:31:02,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-13 13:31:02,420 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:31:02,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:31:02,421 INFO L85 PathProgramCache]: Analyzing trace with hash -795892158, now seen corresponding path program 1 times [2024-11-13 13:31:02,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:31:02,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714584740] [2024-11-13 13:31:02,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:31:02,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:31:03,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:31:04,634 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:31:04,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:31:04,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714584740] [2024-11-13 13:31:04,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714584740] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:31:04,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:31:04,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 13:31:04,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327474143] [2024-11-13 13:31:04,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:31:04,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:31:04,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:31:04,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:31:04,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:31:04,638 INFO L87 Difference]: Start difference. First operand 887 states and 1311 transitions. Second operand has 5 states, 5 states have (on average 53.6) internal successors, (268), 5 states have internal predecessors, (268), 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 13:31:04,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:31:04,817 INFO L93 Difference]: Finished difference Result 1409 states and 2088 transitions. [2024-11-13 13:31:04,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:31:04,818 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 53.6) internal successors, (268), 5 states have internal predecessors, (268), 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 268 [2024-11-13 13:31:04,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:31:04,822 INFO L225 Difference]: With dead ends: 1409 [2024-11-13 13:31:04,822 INFO L226 Difference]: Without dead ends: 887 [2024-11-13 13:31:04,823 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:31:04,824 INFO L432 NwaCegarLoop]: 720 mSDtfsCounter, 1663 mSDsluCounter, 1440 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1663 SdHoareTripleChecker+Valid, 2160 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:31:04,824 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1663 Valid, 2160 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:31:04,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2024-11-13 13:31:04,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 887. [2024-11-13 13:31:04,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 887 states, 886 states have (on average 1.4785553047404063) internal successors, (1310), 886 states have internal predecessors, (1310), 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 13:31:04,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 887 states to 887 states and 1310 transitions. [2024-11-13 13:31:04,852 INFO L78 Accepts]: Start accepts. Automaton has 887 states and 1310 transitions. Word has length 268 [2024-11-13 13:31:04,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:31:04,852 INFO L471 AbstractCegarLoop]: Abstraction has 887 states and 1310 transitions. [2024-11-13 13:31:04,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 53.6) internal successors, (268), 5 states have internal predecessors, (268), 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 13:31:04,853 INFO L276 IsEmpty]: Start isEmpty. Operand 887 states and 1310 transitions. [2024-11-13 13:31:04,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2024-11-13 13:31:04,857 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:31:04,858 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 13:31:04,858 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-13 13:31:04,858 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:31:04,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:31:04,859 INFO L85 PathProgramCache]: Analyzing trace with hash -446643899, now seen corresponding path program 1 times [2024-11-13 13:31:04,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:31:04,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053312798] [2024-11-13 13:31:04,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:31:04,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:31:05,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:31:06,684 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:31:06,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:31:06,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053312798] [2024-11-13 13:31:06,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053312798] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:31:06,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:31:06,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 13:31:06,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301452159] [2024-11-13 13:31:06,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:31:06,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 13:31:06,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:31:06,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 13:31:06,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:31:06,686 INFO L87 Difference]: Start difference. First operand 887 states and 1310 transitions. Second operand has 7 states, 7 states have (on average 38.42857142857143) internal successors, (269), 7 states have internal predecessors, (269), 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 13:31:06,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:31:06,955 INFO L93 Difference]: Finished difference Result 1467 states and 2173 transitions. [2024-11-13 13:31:06,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 13:31:06,956 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 38.42857142857143) internal successors, (269), 7 states have internal predecessors, (269), 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 269 [2024-11-13 13:31:06,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:31:06,961 INFO L225 Difference]: With dead ends: 1467 [2024-11-13 13:31:06,961 INFO L226 Difference]: Without dead ends: 949 [2024-11-13 13:31:06,964 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-13 13:31:06,964 INFO L432 NwaCegarLoop]: 717 mSDtfsCounter, 1848 mSDsluCounter, 2867 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1848 SdHoareTripleChecker+Valid, 3584 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 13:31:06,965 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1848 Valid, 3584 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 13:31:06,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 949 states. [2024-11-13 13:31:06,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 949 to 889. [2024-11-13 13:31:06,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 889 states, 888 states have (on average 1.4774774774774775) internal successors, (1312), 888 states have internal predecessors, (1312), 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 13:31:06,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 889 states to 889 states and 1312 transitions. [2024-11-13 13:31:06,995 INFO L78 Accepts]: Start accepts. Automaton has 889 states and 1312 transitions. Word has length 269 [2024-11-13 13:31:06,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:31:06,995 INFO L471 AbstractCegarLoop]: Abstraction has 889 states and 1312 transitions. [2024-11-13 13:31:06,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 38.42857142857143) internal successors, (269), 7 states have internal predecessors, (269), 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 13:31:06,996 INFO L276 IsEmpty]: Start isEmpty. Operand 889 states and 1312 transitions. [2024-11-13 13:31:07,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2024-11-13 13:31:07,000 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:31:07,001 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 13:31:07,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-13 13:31:07,001 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:31:07,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:31:07,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1986816887, now seen corresponding path program 1 times [2024-11-13 13:31:07,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:31:07,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896478412] [2024-11-13 13:31:07,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:31:07,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:31:08,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:31:08,966 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:31:08,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:31:08,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896478412] [2024-11-13 13:31:08,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896478412] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:31:08,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:31:08,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 13:31:08,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141289621] [2024-11-13 13:31:08,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:31:08,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:31:08,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:31:08,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:31:08,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:31:08,969 INFO L87 Difference]: Start difference. First operand 889 states and 1312 transitions. Second operand has 5 states, 5 states have (on average 54.0) internal successors, (270), 5 states have internal predecessors, (270), 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 13:31:09,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:31:09,131 INFO L93 Difference]: Finished difference Result 1449 states and 2144 transitions. [2024-11-13 13:31:09,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:31:09,132 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 54.0) internal successors, (270), 5 states have internal predecessors, (270), 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 270 [2024-11-13 13:31:09,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:31:09,136 INFO L225 Difference]: With dead ends: 1449 [2024-11-13 13:31:09,136 INFO L226 Difference]: Without dead ends: 889 [2024-11-13 13:31:09,137 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:31:09,138 INFO L432 NwaCegarLoop]: 720 mSDtfsCounter, 1679 mSDsluCounter, 1440 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1679 SdHoareTripleChecker+Valid, 2160 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:31:09,138 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1679 Valid, 2160 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:31:09,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 889 states. [2024-11-13 13:31:09,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 889 to 889. [2024-11-13 13:31:09,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 889 states, 888 states have (on average 1.4763513513513513) internal successors, (1311), 888 states have internal predecessors, (1311), 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 13:31:09,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 889 states to 889 states and 1311 transitions. [2024-11-13 13:31:09,163 INFO L78 Accepts]: Start accepts. Automaton has 889 states and 1311 transitions. Word has length 270 [2024-11-13 13:31:09,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:31:09,164 INFO L471 AbstractCegarLoop]: Abstraction has 889 states and 1311 transitions. [2024-11-13 13:31:09,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 54.0) internal successors, (270), 5 states have internal predecessors, (270), 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 13:31:09,164 INFO L276 IsEmpty]: Start isEmpty. Operand 889 states and 1311 transitions. [2024-11-13 13:31:09,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2024-11-13 13:31:09,167 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:31:09,167 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 13:31:09,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-13 13:31:09,167 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:31:09,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:31:09,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1892314067, now seen corresponding path program 1 times [2024-11-13 13:31:09,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:31:09,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436400682] [2024-11-13 13:31:09,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:31:09,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:31:10,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:31:11,044 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:31:11,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:31:11,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436400682] [2024-11-13 13:31:11,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436400682] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:31:11,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:31:11,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 13:31:11,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356907775] [2024-11-13 13:31:11,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:31:11,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 13:31:11,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:31:11,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 13:31:11,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:31:11,047 INFO L87 Difference]: Start difference. First operand 889 states and 1311 transitions. Second operand has 7 states, 7 states have (on average 38.714285714285715) internal successors, (271), 7 states have internal predecessors, (271), 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 13:31:11,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:31:11,271 INFO L93 Difference]: Finished difference Result 1507 states and 2229 transitions. [2024-11-13 13:31:11,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 13:31:11,271 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 38.714285714285715) internal successors, (271), 7 states have internal predecessors, (271), 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 271 [2024-11-13 13:31:11,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:31:11,275 INFO L225 Difference]: With dead ends: 1507 [2024-11-13 13:31:11,275 INFO L226 Difference]: Without dead ends: 951 [2024-11-13 13:31:11,276 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-13 13:31:11,277 INFO L432 NwaCegarLoop]: 717 mSDtfsCounter, 1865 mSDsluCounter, 2683 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1865 SdHoareTripleChecker+Valid, 3400 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:31:11,277 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1865 Valid, 3400 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:31:11,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 951 states. [2024-11-13 13:31:11,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 951 to 891. [2024-11-13 13:31:11,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 891 states, 890 states have (on average 1.4752808988764046) internal successors, (1313), 890 states have internal predecessors, (1313), 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 13:31:11,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 891 states to 891 states and 1313 transitions. [2024-11-13 13:31:11,304 INFO L78 Accepts]: Start accepts. Automaton has 891 states and 1313 transitions. Word has length 271 [2024-11-13 13:31:11,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:31:11,304 INFO L471 AbstractCegarLoop]: Abstraction has 891 states and 1313 transitions. [2024-11-13 13:31:11,305 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 38.714285714285715) internal successors, (271), 7 states have internal predecessors, (271), 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 13:31:11,305 INFO L276 IsEmpty]: Start isEmpty. Operand 891 states and 1313 transitions. [2024-11-13 13:31:11,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2024-11-13 13:31:11,307 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:31:11,307 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 13:31:11,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-13 13:31:11,308 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:31:11,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:31:11,308 INFO L85 PathProgramCache]: Analyzing trace with hash -906945168, now seen corresponding path program 1 times [2024-11-13 13:31:11,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:31:11,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149293039] [2024-11-13 13:31:11,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:31:11,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:31:12,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:31:13,391 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:31:13,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:31:13,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149293039] [2024-11-13 13:31:13,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149293039] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:31:13,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:31:13,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 13:31:13,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173020473] [2024-11-13 13:31:13,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:31:13,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 13:31:13,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:31:13,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 13:31:13,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:31:13,393 INFO L87 Difference]: Start difference. First operand 891 states and 1313 transitions. Second operand has 7 states, 7 states have (on average 38.857142857142854) internal successors, (272), 7 states have internal predecessors, (272), 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 13:31:13,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:31:13,609 INFO L93 Difference]: Finished difference Result 1415 states and 2092 transitions. [2024-11-13 13:31:13,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 13:31:13,610 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 38.857142857142854) internal successors, (272), 7 states have internal predecessors, (272), 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 272 [2024-11-13 13:31:13,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:31:13,612 INFO L225 Difference]: With dead ends: 1415 [2024-11-13 13:31:13,612 INFO L226 Difference]: Without dead ends: 901 [2024-11-13 13:31:13,613 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-13 13:31:13,614 INFO L432 NwaCegarLoop]: 719 mSDtfsCounter, 1686 mSDsluCounter, 2531 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1686 SdHoareTripleChecker+Valid, 3250 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:31:13,614 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1686 Valid, 3250 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:31:13,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 901 states. [2024-11-13 13:31:13,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 901 to 893. [2024-11-13 13:31:13,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 893 states, 892 states have (on average 1.4742152466367713) internal successors, (1315), 892 states have internal predecessors, (1315), 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 13:31:13,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 893 states to 893 states and 1315 transitions. [2024-11-13 13:31:13,636 INFO L78 Accepts]: Start accepts. Automaton has 893 states and 1315 transitions. Word has length 272 [2024-11-13 13:31:13,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:31:13,637 INFO L471 AbstractCegarLoop]: Abstraction has 893 states and 1315 transitions. [2024-11-13 13:31:13,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 38.857142857142854) internal successors, (272), 7 states have internal predecessors, (272), 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 13:31:13,637 INFO L276 IsEmpty]: Start isEmpty. Operand 893 states and 1315 transitions. [2024-11-13 13:31:13,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2024-11-13 13:31:13,639 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:31:13,640 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 13:31:13,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-13 13:31:13,640 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:31:13,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:31:13,641 INFO L85 PathProgramCache]: Analyzing trace with hash -1384379636, now seen corresponding path program 1 times [2024-11-13 13:31:13,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:31:13,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789016774] [2024-11-13 13:31:13,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:31:13,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:31:14,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:31:15,372 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:31:15,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:31:15,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789016774] [2024-11-13 13:31:15,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789016774] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:31:15,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:31:15,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 13:31:15,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443732858] [2024-11-13 13:31:15,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:31:15,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 13:31:15,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:31:15,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 13:31:15,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:31:15,375 INFO L87 Difference]: Start difference. First operand 893 states and 1315 transitions. Second operand has 7 states, 7 states have (on average 38.857142857142854) internal successors, (272), 7 states have internal predecessors, (272), 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 13:31:15,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:31:15,542 INFO L93 Difference]: Finished difference Result 1457 states and 2151 transitions. [2024-11-13 13:31:15,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 13:31:15,543 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 38.857142857142854) internal successors, (272), 7 states have internal predecessors, (272), 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 272 [2024-11-13 13:31:15,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:31:15,545 INFO L225 Difference]: With dead ends: 1457 [2024-11-13 13:31:15,545 INFO L226 Difference]: Without dead ends: 903 [2024-11-13 13:31:15,546 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-13 13:31:15,547 INFO L432 NwaCegarLoop]: 719 mSDtfsCounter, 1706 mSDsluCounter, 2531 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1706 SdHoareTripleChecker+Valid, 3250 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:31:15,547 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1706 Valid, 3250 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:31:15,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 903 states. [2024-11-13 13:31:15,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 903 to 895. [2024-11-13 13:31:15,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 895 states, 894 states have (on average 1.4731543624161074) internal successors, (1317), 894 states have internal predecessors, (1317), 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 13:31:15,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 895 states to 895 states and 1317 transitions. [2024-11-13 13:31:15,569 INFO L78 Accepts]: Start accepts. Automaton has 895 states and 1317 transitions. Word has length 272 [2024-11-13 13:31:15,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:31:15,570 INFO L471 AbstractCegarLoop]: Abstraction has 895 states and 1317 transitions. [2024-11-13 13:31:15,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 38.857142857142854) internal successors, (272), 7 states have internal predecessors, (272), 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 13:31:15,571 INFO L276 IsEmpty]: Start isEmpty. Operand 895 states and 1317 transitions. [2024-11-13 13:31:15,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2024-11-13 13:31:15,573 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:31:15,573 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 13:31:15,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-13 13:31:15,573 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:31:15,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:31:15,574 INFO L85 PathProgramCache]: Analyzing trace with hash -1333521752, now seen corresponding path program 1 times [2024-11-13 13:31:15,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:31:15,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642671390] [2024-11-13 13:31:15,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:31:15,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:31:16,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:31:17,347 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:31:17,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:31:17,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642671390] [2024-11-13 13:31:17,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642671390] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:31:17,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:31:17,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 13:31:17,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086479729] [2024-11-13 13:31:17,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:31:17,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 13:31:17,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:31:17,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 13:31:17,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:31:17,350 INFO L87 Difference]: Start difference. First operand 895 states and 1317 transitions. Second operand has 7 states, 7 states have (on average 38.857142857142854) internal successors, (272), 7 states have internal predecessors, (272), 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 13:31:17,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:31:17,533 INFO L93 Difference]: Finished difference Result 1354 states and 2000 transitions. [2024-11-13 13:31:17,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 13:31:17,534 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 38.857142857142854) internal successors, (272), 7 states have internal predecessors, (272), 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 272 [2024-11-13 13:31:17,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:31:17,537 INFO L225 Difference]: With dead ends: 1354 [2024-11-13 13:31:17,537 INFO L226 Difference]: Without dead ends: 905 [2024-11-13 13:31:17,538 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-13 13:31:17,539 INFO L432 NwaCegarLoop]: 719 mSDtfsCounter, 1643 mSDsluCounter, 2535 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1643 SdHoareTripleChecker+Valid, 3254 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:31:17,539 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1643 Valid, 3254 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:31:17,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 905 states. [2024-11-13 13:31:17,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 905 to 901. [2024-11-13 13:31:17,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 900 states have (on average 1.4722222222222223) internal successors, (1325), 900 states have internal predecessors, (1325), 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 13:31:17,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1325 transitions. [2024-11-13 13:31:17,564 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1325 transitions. Word has length 272 [2024-11-13 13:31:17,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:31:17,565 INFO L471 AbstractCegarLoop]: Abstraction has 901 states and 1325 transitions. [2024-11-13 13:31:17,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 38.857142857142854) internal successors, (272), 7 states have internal predecessors, (272), 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 13:31:17,566 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1325 transitions. [2024-11-13 13:31:17,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2024-11-13 13:31:17,569 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:31:17,570 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 13:31:17,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-13 13:31:17,570 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:31:17,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:31:17,571 INFO L85 PathProgramCache]: Analyzing trace with hash -2082876092, now seen corresponding path program 1 times [2024-11-13 13:31:17,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:31:17,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392695890] [2024-11-13 13:31:17,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:31:17,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:31:18,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:31:19,372 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:31:19,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:31:19,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392695890] [2024-11-13 13:31:19,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392695890] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:31:19,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:31:19,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 13:31:19,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003332228] [2024-11-13 13:31:19,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:31:19,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:31:19,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:31:19,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:31:19,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:31:19,374 INFO L87 Difference]: Start difference. First operand 901 states and 1325 transitions. Second operand has 5 states, 5 states have (on average 54.4) internal successors, (272), 5 states have internal predecessors, (272), 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 13:31:19,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:31:19,531 INFO L93 Difference]: Finished difference Result 1393 states and 2056 transitions. [2024-11-13 13:31:19,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:31:19,531 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 54.4) internal successors, (272), 5 states have internal predecessors, (272), 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 272 [2024-11-13 13:31:19,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:31:19,534 INFO L225 Difference]: With dead ends: 1393 [2024-11-13 13:31:19,535 INFO L226 Difference]: Without dead ends: 901 [2024-11-13 13:31:19,536 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:31:19,540 INFO L432 NwaCegarLoop]: 720 mSDtfsCounter, 1637 mSDsluCounter, 1440 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1637 SdHoareTripleChecker+Valid, 2160 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:31:19,540 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1637 Valid, 2160 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:31:19,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 901 states. [2024-11-13 13:31:19,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 901 to 901. [2024-11-13 13:31:19,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 900 states have (on average 1.471111111111111) internal successors, (1324), 900 states have internal predecessors, (1324), 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 13:31:19,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1324 transitions. [2024-11-13 13:31:19,578 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1324 transitions. Word has length 272 [2024-11-13 13:31:19,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:31:19,579 INFO L471 AbstractCegarLoop]: Abstraction has 901 states and 1324 transitions. [2024-11-13 13:31:19,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 54.4) internal successors, (272), 5 states have internal predecessors, (272), 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 13:31:19,579 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1324 transitions. [2024-11-13 13:31:19,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2024-11-13 13:31:19,586 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:31:19,587 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 13:31:19,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-13 13:31:19,587 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:31:19,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:31:19,588 INFO L85 PathProgramCache]: Analyzing trace with hash 824987738, now seen corresponding path program 1 times [2024-11-13 13:31:19,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:31:19,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438882451] [2024-11-13 13:31:19,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:31:19,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:31:20,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:31:21,555 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:31:21,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:31:21,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438882451] [2024-11-13 13:31:21,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438882451] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:31:21,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:31:21,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 13:31:21,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093674830] [2024-11-13 13:31:21,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:31:21,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 13:31:21,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:31:21,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 13:31:21,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:31:21,558 INFO L87 Difference]: Start difference. First operand 901 states and 1324 transitions. Second operand has 7 states, 7 states have (on average 39.0) internal successors, (273), 7 states have internal predecessors, (273), 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 13:31:21,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:31:21,749 INFO L93 Difference]: Finished difference Result 1447 states and 2135 transitions. [2024-11-13 13:31:21,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 13:31:21,750 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 39.0) internal successors, (273), 7 states have internal predecessors, (273), 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 273 [2024-11-13 13:31:21,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:31:21,756 INFO L225 Difference]: With dead ends: 1447 [2024-11-13 13:31:21,756 INFO L226 Difference]: Without dead ends: 959 [2024-11-13 13:31:21,757 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-13 13:31:21,761 INFO L432 NwaCegarLoop]: 717 mSDtfsCounter, 1823 mSDsluCounter, 2774 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1823 SdHoareTripleChecker+Valid, 3491 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:31:21,761 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1823 Valid, 3491 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:31:21,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 959 states. [2024-11-13 13:31:21,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 959 to 903. [2024-11-13 13:31:21,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 903 states, 902 states have (on average 1.4700665188470066) internal successors, (1326), 902 states have internal predecessors, (1326), 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 13:31:21,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 903 states to 903 states and 1326 transitions. [2024-11-13 13:31:21,783 INFO L78 Accepts]: Start accepts. Automaton has 903 states and 1326 transitions. Word has length 273 [2024-11-13 13:31:21,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:31:21,784 INFO L471 AbstractCegarLoop]: Abstraction has 903 states and 1326 transitions. [2024-11-13 13:31:21,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 39.0) internal successors, (273), 7 states have internal predecessors, (273), 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 13:31:21,784 INFO L276 IsEmpty]: Start isEmpty. Operand 903 states and 1326 transitions. [2024-11-13 13:31:21,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2024-11-13 13:31:21,789 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:31:21,790 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 13:31:21,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-13 13:31:21,790 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:31:21,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:31:21,791 INFO L85 PathProgramCache]: Analyzing trace with hash -231456341, now seen corresponding path program 1 times [2024-11-13 13:31:21,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:31:21,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804329487] [2024-11-13 13:31:21,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:31:21,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:31:22,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:31:23,507 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:31:23,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:31:23,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804329487] [2024-11-13 13:31:23,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804329487] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:31:23,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:31:23,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 13:31:23,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714041950] [2024-11-13 13:31:23,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:31:23,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 13:31:23,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:31:23,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 13:31:23,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:31:23,510 INFO L87 Difference]: Start difference. First operand 903 states and 1326 transitions. Second operand has 7 states, 7 states have (on average 39.142857142857146) internal successors, (274), 7 states have internal predecessors, (274), 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 13:31:23,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:31:23,684 INFO L93 Difference]: Finished difference Result 1393 states and 2053 transitions. [2024-11-13 13:31:23,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 13:31:23,685 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 39.142857142857146) internal successors, (274), 7 states have internal predecessors, (274), 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 274 [2024-11-13 13:31:23,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:31:23,687 INFO L225 Difference]: With dead ends: 1393 [2024-11-13 13:31:23,687 INFO L226 Difference]: Without dead ends: 909 [2024-11-13 13:31:23,687 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-13 13:31:23,688 INFO L432 NwaCegarLoop]: 719 mSDtfsCounter, 1664 mSDsluCounter, 2700 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1664 SdHoareTripleChecker+Valid, 3419 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:31:23,688 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1664 Valid, 3419 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:31:23,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 909 states. [2024-11-13 13:31:23,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 909 to 905. [2024-11-13 13:31:23,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 905 states, 904 states have (on average 1.4690265486725664) internal successors, (1328), 904 states have internal predecessors, (1328), 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 13:31:23,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1328 transitions. [2024-11-13 13:31:23,702 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1328 transitions. Word has length 274 [2024-11-13 13:31:23,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:31:23,702 INFO L471 AbstractCegarLoop]: Abstraction has 905 states and 1328 transitions. [2024-11-13 13:31:23,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 39.142857142857146) internal successors, (274), 7 states have internal predecessors, (274), 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 13:31:23,703 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1328 transitions. [2024-11-13 13:31:23,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2024-11-13 13:31:23,705 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:31:23,705 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 13:31:23,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-13 13:31:23,705 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:31:23,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:31:23,706 INFO L85 PathProgramCache]: Analyzing trace with hash 1615502919, now seen corresponding path program 1 times [2024-11-13 13:31:23,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:31:23,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531203023] [2024-11-13 13:31:23,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:31:23,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:31:25,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:31:25,960 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:31:25,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:31:25,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531203023] [2024-11-13 13:31:25,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531203023] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:31:25,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:31:25,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-13 13:31:25,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428641719] [2024-11-13 13:31:25,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:31:25,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 13:31:25,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:31:25,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 13:31:25,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-13 13:31:25,964 INFO L87 Difference]: Start difference. First operand 905 states and 1328 transitions. Second operand has 9 states, 9 states have (on average 30.444444444444443) internal successors, (274), 9 states have internal predecessors, (274), 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 13:31:26,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:31:26,251 INFO L93 Difference]: Finished difference Result 1731 states and 2543 transitions. [2024-11-13 13:31:26,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 13:31:26,252 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 30.444444444444443) internal successors, (274), 9 states have internal predecessors, (274), 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 274 [2024-11-13 13:31:26,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:31:26,255 INFO L225 Difference]: With dead ends: 1731 [2024-11-13 13:31:26,255 INFO L226 Difference]: Without dead ends: 908 [2024-11-13 13:31:26,257 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2024-11-13 13:31:26,257 INFO L432 NwaCegarLoop]: 721 mSDtfsCounter, 1824 mSDsluCounter, 3604 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1824 SdHoareTripleChecker+Valid, 4325 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:31:26,258 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1824 Valid, 4325 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:31:26,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 908 states. [2024-11-13 13:31:26,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 908 to 908. [2024-11-13 13:31:26,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 908 states, 907 states have (on average 1.4674751929437706) internal successors, (1331), 907 states have internal predecessors, (1331), 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 13:31:26,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 908 states to 908 states and 1331 transitions. [2024-11-13 13:31:26,274 INFO L78 Accepts]: Start accepts. Automaton has 908 states and 1331 transitions. Word has length 274 [2024-11-13 13:31:26,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:31:26,274 INFO L471 AbstractCegarLoop]: Abstraction has 908 states and 1331 transitions. [2024-11-13 13:31:26,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 30.444444444444443) internal successors, (274), 9 states have internal predecessors, (274), 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 13:31:26,275 INFO L276 IsEmpty]: Start isEmpty. Operand 908 states and 1331 transitions. [2024-11-13 13:31:26,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2024-11-13 13:31:26,277 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:31:26,277 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 13:31:26,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-13 13:31:26,277 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:31:26,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:31:26,278 INFO L85 PathProgramCache]: Analyzing trace with hash -435877605, now seen corresponding path program 1 times [2024-11-13 13:31:26,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:31:26,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853160035] [2024-11-13 13:31:26,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:31:26,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:31:27,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:31:29,129 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:31:29,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:31:29,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853160035] [2024-11-13 13:31:29,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853160035] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:31:29,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:31:29,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-13 13:31:29,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896907095] [2024-11-13 13:31:29,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:31:29,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 13:31:29,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:31:29,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 13:31:29,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-13 13:31:29,131 INFO L87 Difference]: Start difference. First operand 908 states and 1331 transitions. Second operand has 10 states, 10 states have (on average 27.5) internal successors, (275), 10 states have internal predecessors, (275), 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 13:31:29,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:31:29,625 INFO L93 Difference]: Finished difference Result 1730 states and 2540 transitions. [2024-11-13 13:31:29,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 13:31:29,626 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 27.5) internal successors, (275), 10 states have internal predecessors, (275), 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 275 [2024-11-13 13:31:29,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:31:29,629 INFO L225 Difference]: With dead ends: 1730 [2024-11-13 13:31:29,629 INFO L226 Difference]: Without dead ends: 911 [2024-11-13 13:31:29,630 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2024-11-13 13:31:29,631 INFO L432 NwaCegarLoop]: 708 mSDtfsCounter, 1825 mSDsluCounter, 4940 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1825 SdHoareTripleChecker+Valid, 5648 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 13:31:29,632 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1825 Valid, 5648 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 13:31:29,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 911 states. [2024-11-13 13:31:29,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 911 to 911. [2024-11-13 13:31:29,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 911 states, 910 states have (on average 1.4659340659340658) internal successors, (1334), 910 states have internal predecessors, (1334), 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 13:31:29,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 911 states to 911 states and 1334 transitions. [2024-11-13 13:31:29,649 INFO L78 Accepts]: Start accepts. Automaton has 911 states and 1334 transitions. Word has length 275 [2024-11-13 13:31:29,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:31:29,649 INFO L471 AbstractCegarLoop]: Abstraction has 911 states and 1334 transitions. [2024-11-13 13:31:29,650 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 27.5) internal successors, (275), 10 states have internal predecessors, (275), 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 13:31:29,650 INFO L276 IsEmpty]: Start isEmpty. Operand 911 states and 1334 transitions. [2024-11-13 13:31:29,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2024-11-13 13:31:29,652 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:31:29,653 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 13:31:29,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-13 13:31:29,653 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:31:29,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:31:29,654 INFO L85 PathProgramCache]: Analyzing trace with hash 1769219840, now seen corresponding path program 1 times [2024-11-13 13:31:29,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:31:29,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918180224] [2024-11-13 13:31:29,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:31:29,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:31:31,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:31:32,533 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:31:32,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:31:32,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918180224] [2024-11-13 13:31:32,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918180224] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:31:32,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:31:32,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 13:31:32,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977523015] [2024-11-13 13:31:32,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:31:32,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:31:32,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:31:32,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:31:32,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:31:32,535 INFO L87 Difference]: Start difference. First operand 911 states and 1334 transitions. Second operand has 5 states, 5 states have (on average 55.2) internal successors, (276), 5 states have internal predecessors, (276), 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 13:31:32,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:31:32,691 INFO L93 Difference]: Finished difference Result 1816 states and 2662 transitions. [2024-11-13 13:31:32,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:31:32,692 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 55.2) internal successors, (276), 5 states have internal predecessors, (276), 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 276 [2024-11-13 13:31:32,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:31:32,693 INFO L225 Difference]: With dead ends: 1816 [2024-11-13 13:31:32,693 INFO L226 Difference]: Without dead ends: 965 [2024-11-13 13:31:32,694 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:31:32,695 INFO L432 NwaCegarLoop]: 721 mSDtfsCounter, 1993 mSDsluCounter, 1444 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1993 SdHoareTripleChecker+Valid, 2165 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:31:32,695 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1993 Valid, 2165 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:31:32,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 965 states. [2024-11-13 13:31:32,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 965 to 911. [2024-11-13 13:31:32,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 911 states, 910 states have (on average 1.4648351648351647) internal successors, (1333), 910 states have internal predecessors, (1333), 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 13:31:32,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 911 states to 911 states and 1333 transitions. [2024-11-13 13:31:32,708 INFO L78 Accepts]: Start accepts. Automaton has 911 states and 1333 transitions. Word has length 276 [2024-11-13 13:31:32,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:31:32,708 INFO L471 AbstractCegarLoop]: Abstraction has 911 states and 1333 transitions. [2024-11-13 13:31:32,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 55.2) internal successors, (276), 5 states have internal predecessors, (276), 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 13:31:32,708 INFO L276 IsEmpty]: Start isEmpty. Operand 911 states and 1333 transitions. [2024-11-13 13:31:32,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2024-11-13 13:31:32,710 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:31:32,710 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 13:31:32,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-13 13:31:32,711 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:31:32,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:31:32,711 INFO L85 PathProgramCache]: Analyzing trace with hash 34679604, now seen corresponding path program 1 times [2024-11-13 13:31:32,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:31:32,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177052546] [2024-11-13 13:31:32,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:31:32,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:31:33,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:31:33,512 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:31:33,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:31:33,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177052546] [2024-11-13 13:31:33,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177052546] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:31:33,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:31:33,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 13:31:33,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326684724] [2024-11-13 13:31:33,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:31:33,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:31:33,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:31:33,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:31:33,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:31:33,514 INFO L87 Difference]: Start difference. First operand 911 states and 1333 transitions. Second operand has 5 states, 5 states have (on average 55.4) internal successors, (277), 5 states have internal predecessors, (277), 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 13:31:33,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:31:33,605 INFO L93 Difference]: Finished difference Result 1816 states and 2661 transitions. [2024-11-13 13:31:33,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:31:33,606 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 55.4) internal successors, (277), 5 states have internal predecessors, (277), 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 277 [2024-11-13 13:31:33,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:31:33,609 INFO L225 Difference]: With dead ends: 1816 [2024-11-13 13:31:33,609 INFO L226 Difference]: Without dead ends: 965 [2024-11-13 13:31:33,610 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:31:33,610 INFO L432 NwaCegarLoop]: 725 mSDtfsCounter, 1990 mSDsluCounter, 1450 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1990 SdHoareTripleChecker+Valid, 2175 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:31:33,611 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1990 Valid, 2175 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:31:33,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 965 states. [2024-11-13 13:31:33,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 965 to 911. [2024-11-13 13:31:33,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 911 states, 910 states have (on average 1.4637362637362636) internal successors, (1332), 910 states have internal predecessors, (1332), 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 13:31:33,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 911 states to 911 states and 1332 transitions. [2024-11-13 13:31:33,625 INFO L78 Accepts]: Start accepts. Automaton has 911 states and 1332 transitions. Word has length 277 [2024-11-13 13:31:33,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:31:33,625 INFO L471 AbstractCegarLoop]: Abstraction has 911 states and 1332 transitions. [2024-11-13 13:31:33,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 55.4) internal successors, (277), 5 states have internal predecessors, (277), 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 13:31:33,626 INFO L276 IsEmpty]: Start isEmpty. Operand 911 states and 1332 transitions. [2024-11-13 13:31:33,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2024-11-13 13:31:33,628 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:31:33,628 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 13:31:33,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-13 13:31:33,628 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:31:33,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:31:33,629 INFO L85 PathProgramCache]: Analyzing trace with hash -411877693, now seen corresponding path program 1 times [2024-11-13 13:31:33,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:31:33,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299077376] [2024-11-13 13:31:33,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:31:33,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:31:35,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:31:35,521 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:31:35,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:31:35,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299077376] [2024-11-13 13:31:35,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299077376] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:31:35,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:31:35,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 13:31:35,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485341708] [2024-11-13 13:31:35,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:31:35,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:31:35,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:31:35,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:31:35,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:31:35,523 INFO L87 Difference]: Start difference. First operand 911 states and 1332 transitions. Second operand has 5 states, 5 states have (on average 55.6) internal successors, (278), 5 states have internal predecessors, (278), 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 13:31:35,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:31:35,665 INFO L93 Difference]: Finished difference Result 1601 states and 2346 transitions. [2024-11-13 13:31:35,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:31:35,666 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 55.6) internal successors, (278), 5 states have internal predecessors, (278), 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 278 [2024-11-13 13:31:35,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:31:35,669 INFO L225 Difference]: With dead ends: 1601 [2024-11-13 13:31:35,669 INFO L226 Difference]: Without dead ends: 911 [2024-11-13 13:31:35,670 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:31:35,670 INFO L432 NwaCegarLoop]: 721 mSDtfsCounter, 1725 mSDsluCounter, 1440 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1725 SdHoareTripleChecker+Valid, 2161 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:31:35,671 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1725 Valid, 2161 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:31:35,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 911 states. [2024-11-13 13:31:35,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 911 to 911. [2024-11-13 13:31:35,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 911 states, 910 states have (on average 1.4626373626373625) internal successors, (1331), 910 states have internal predecessors, (1331), 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 13:31:35,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 911 states to 911 states and 1331 transitions. [2024-11-13 13:31:35,684 INFO L78 Accepts]: Start accepts. Automaton has 911 states and 1331 transitions. Word has length 278 [2024-11-13 13:31:35,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:31:35,685 INFO L471 AbstractCegarLoop]: Abstraction has 911 states and 1331 transitions. [2024-11-13 13:31:35,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 55.6) internal successors, (278), 5 states have internal predecessors, (278), 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 13:31:35,685 INFO L276 IsEmpty]: Start isEmpty. Operand 911 states and 1331 transitions. [2024-11-13 13:31:35,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2024-11-13 13:31:35,686 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:31:35,686 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 13:31:35,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-13 13:31:35,687 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:31:35,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:31:35,687 INFO L85 PathProgramCache]: Analyzing trace with hash 511546209, now seen corresponding path program 1 times [2024-11-13 13:31:35,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:31:35,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218689541] [2024-11-13 13:31:35,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:31:35,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:31:37,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:31:38,160 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:31:38,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:31:38,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218689541] [2024-11-13 13:31:38,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218689541] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:31:38,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:31:38,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 13:31:38,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697598149] [2024-11-13 13:31:38,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:31:38,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:31:38,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:31:38,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:31:38,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:31:38,163 INFO L87 Difference]: Start difference. First operand 911 states and 1331 transitions. Second operand has 5 states, 5 states have (on average 55.8) internal successors, (279), 5 states have internal predecessors, (279), 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 13:31:38,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:31:38,316 INFO L93 Difference]: Finished difference Result 1779 states and 2607 transitions. [2024-11-13 13:31:38,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:31:38,316 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 55.8) internal successors, (279), 5 states have internal predecessors, (279), 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 279 [2024-11-13 13:31:38,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:31:38,323 INFO L225 Difference]: With dead ends: 1779 [2024-11-13 13:31:38,324 INFO L226 Difference]: Without dead ends: 965 [2024-11-13 13:31:38,325 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:31:38,325 INFO L432 NwaCegarLoop]: 721 mSDtfsCounter, 1966 mSDsluCounter, 1444 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1966 SdHoareTripleChecker+Valid, 2165 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:31:38,325 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1966 Valid, 2165 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:31:38,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 965 states. [2024-11-13 13:31:38,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 965 to 911. [2024-11-13 13:31:38,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 911 states, 910 states have (on average 1.4615384615384615) internal successors, (1330), 910 states have internal predecessors, (1330), 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 13:31:38,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 911 states to 911 states and 1330 transitions. [2024-11-13 13:31:38,350 INFO L78 Accepts]: Start accepts. Automaton has 911 states and 1330 transitions. Word has length 279 [2024-11-13 13:31:38,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:31:38,350 INFO L471 AbstractCegarLoop]: Abstraction has 911 states and 1330 transitions. [2024-11-13 13:31:38,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 55.8) internal successors, (279), 5 states have internal predecessors, (279), 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 13:31:38,350 INFO L276 IsEmpty]: Start isEmpty. Operand 911 states and 1330 transitions. [2024-11-13 13:31:38,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2024-11-13 13:31:38,352 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:31:38,352 INFO L215 NwaCegarLoop]: trace histogram [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 13:31:38,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-13 13:31:38,353 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:31:38,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:31:38,353 INFO L85 PathProgramCache]: Analyzing trace with hash -1870019309, now seen corresponding path program 1 times [2024-11-13 13:31:38,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:31:38,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173168855] [2024-11-13 13:31:38,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:31:38,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:31:38,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:31:39,301 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:31:39,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:31:39,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173168855] [2024-11-13 13:31:39,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173168855] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:31:39,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:31:39,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 13:31:39,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641012939] [2024-11-13 13:31:39,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:31:39,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:31:39,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:31:39,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:31:39,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:31:39,304 INFO L87 Difference]: Start difference. First operand 911 states and 1330 transitions. Second operand has 5 states, 5 states have (on average 56.0) internal successors, (280), 5 states have internal predecessors, (280), 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 13:31:39,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:31:39,418 INFO L93 Difference]: Finished difference Result 1779 states and 2606 transitions. [2024-11-13 13:31:39,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:31:39,419 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 56.0) internal successors, (280), 5 states have internal predecessors, (280), 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 280 [2024-11-13 13:31:39,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:31:39,422 INFO L225 Difference]: With dead ends: 1779 [2024-11-13 13:31:39,422 INFO L226 Difference]: Without dead ends: 965 [2024-11-13 13:31:39,423 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:31:39,424 INFO L432 NwaCegarLoop]: 725 mSDtfsCounter, 1963 mSDsluCounter, 1450 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1963 SdHoareTripleChecker+Valid, 2175 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:31:39,425 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1963 Valid, 2175 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:31:39,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 965 states. [2024-11-13 13:31:39,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 965 to 911. [2024-11-13 13:31:39,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 911 states, 910 states have (on average 1.4604395604395604) internal successors, (1329), 910 states have internal predecessors, (1329), 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 13:31:39,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 911 states to 911 states and 1329 transitions. [2024-11-13 13:31:39,440 INFO L78 Accepts]: Start accepts. Automaton has 911 states and 1329 transitions. Word has length 280 [2024-11-13 13:31:39,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:31:39,440 INFO L471 AbstractCegarLoop]: Abstraction has 911 states and 1329 transitions. [2024-11-13 13:31:39,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 56.0) internal successors, (280), 5 states have internal predecessors, (280), 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 13:31:39,441 INFO L276 IsEmpty]: Start isEmpty. Operand 911 states and 1329 transitions. [2024-11-13 13:31:39,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2024-11-13 13:31:39,442 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:31:39,443 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 13:31:39,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-13 13:31:39,443 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:31:39,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:31:39,444 INFO L85 PathProgramCache]: Analyzing trace with hash -1532611164, now seen corresponding path program 1 times [2024-11-13 13:31:39,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:31:39,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370957109] [2024-11-13 13:31:39,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:31:39,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:31:40,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:31:43,585 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:31:43,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:31:43,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370957109] [2024-11-13 13:31:43,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370957109] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:31:43,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1053234336] [2024-11-13 13:31:43,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:31:43,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:31:43,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:31:43,589 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:31:43,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 13:31:45,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:31:45,257 INFO L255 TraceCheckSpWp]: Trace formula consists of 1742 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-13 13:31:45,285 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:31:47,408 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:31:47,408 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:31:49,995 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:31:49,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1053234336] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:31:49,996 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:31:49,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 11] total 28 [2024-11-13 13:31:49,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939507295] [2024-11-13 13:31:49,996 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:31:49,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-13 13:31:49,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:31:49,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-13 13:31:49,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=645, Unknown=0, NotChecked=0, Total=756 [2024-11-13 13:31:50,001 INFO L87 Difference]: Start difference. First operand 911 states and 1329 transitions. Second operand has 28 states, 28 states have (on average 29.678571428571427) internal successors, (831), 28 states have internal predecessors, (831), 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 13:31:51,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:31:51,804 INFO L93 Difference]: Finished difference Result 3091 states and 4536 transitions. [2024-11-13 13:31:51,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-13 13:31:51,804 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 29.678571428571427) internal successors, (831), 28 states have internal predecessors, (831), 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 281 [2024-11-13 13:31:51,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:31:51,810 INFO L225 Difference]: With dead ends: 3091 [2024-11-13 13:31:51,810 INFO L226 Difference]: Without dead ends: 2247 [2024-11-13 13:31:51,813 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 588 GetRequests, 545 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 419 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=343, Invalid=1637, Unknown=0, NotChecked=0, Total=1980 [2024-11-13 13:31:51,814 INFO L432 NwaCegarLoop]: 622 mSDtfsCounter, 15460 mSDsluCounter, 8552 mSDsCounter, 0 mSdLazyCounter, 1517 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15460 SdHoareTripleChecker+Valid, 9174 SdHoareTripleChecker+Invalid, 1524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-13 13:31:51,814 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15460 Valid, 9174 Invalid, 1524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1517 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-13 13:31:51,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2247 states. [2024-11-13 13:31:51,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2247 to 1744. [2024-11-13 13:31:51,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1744 states, 1743 states have (on average 1.4612736660929433) internal successors, (2547), 1743 states have internal predecessors, (2547), 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 13:31:51,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1744 states to 1744 states and 2547 transitions. [2024-11-13 13:31:51,843 INFO L78 Accepts]: Start accepts. Automaton has 1744 states and 2547 transitions. Word has length 281 [2024-11-13 13:31:51,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:31:51,843 INFO L471 AbstractCegarLoop]: Abstraction has 1744 states and 2547 transitions. [2024-11-13 13:31:51,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 29.678571428571427) internal successors, (831), 28 states have internal predecessors, (831), 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 13:31:51,844 INFO L276 IsEmpty]: Start isEmpty. Operand 1744 states and 2547 transitions. [2024-11-13 13:31:51,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2024-11-13 13:31:51,846 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:31:51,846 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 13:31:51,879 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 13:31:52,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2024-11-13 13:31:52,047 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:31:52,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:31:52,047 INFO L85 PathProgramCache]: Analyzing trace with hash -626347000, now seen corresponding path program 1 times [2024-11-13 13:31:52,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:31:52,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914477304] [2024-11-13 13:31:52,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:31:52,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:31:52,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:31:52,995 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:31:52,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:31:52,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914477304] [2024-11-13 13:31:52,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914477304] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:31:52,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:31:52,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 13:31:52,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656568377] [2024-11-13 13:31:52,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:31:52,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:31:52,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:31:52,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:31:52,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:31:52,998 INFO L87 Difference]: Start difference. First operand 1744 states and 2547 transitions. Second operand has 5 states, 5 states have (on average 56.4) internal successors, (282), 5 states have internal predecessors, (282), 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 13:31:53,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:31:53,107 INFO L93 Difference]: Finished difference Result 2631 states and 3844 transitions. [2024-11-13 13:31:53,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:31:53,108 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 56.4) internal successors, (282), 5 states have internal predecessors, (282), 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 282 [2024-11-13 13:31:53,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:31:53,116 INFO L225 Difference]: With dead ends: 2631 [2024-11-13 13:31:53,117 INFO L226 Difference]: Without dead ends: 1785 [2024-11-13 13:31:53,119 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:31:53,121 INFO L432 NwaCegarLoop]: 725 mSDtfsCounter, 1873 mSDsluCounter, 1445 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1873 SdHoareTripleChecker+Valid, 2170 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:31:53,121 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1873 Valid, 2170 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:31:53,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1785 states. [2024-11-13 13:31:53,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1785 to 1741. [2024-11-13 13:31:53,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1741 states, 1740 states have (on average 1.460344827586207) internal successors, (2541), 1740 states have internal predecessors, (2541), 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 13:31:53,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1741 states to 1741 states and 2541 transitions. [2024-11-13 13:31:53,161 INFO L78 Accepts]: Start accepts. Automaton has 1741 states and 2541 transitions. Word has length 282 [2024-11-13 13:31:53,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:31:53,162 INFO L471 AbstractCegarLoop]: Abstraction has 1741 states and 2541 transitions. [2024-11-13 13:31:53,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 56.4) internal successors, (282), 5 states have internal predecessors, (282), 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 13:31:53,162 INFO L276 IsEmpty]: Start isEmpty. Operand 1741 states and 2541 transitions. [2024-11-13 13:31:53,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2024-11-13 13:31:53,165 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:31:53,165 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 13:31:53,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-13 13:31:53,166 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:31:53,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:31:53,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1159206863, now seen corresponding path program 1 times [2024-11-13 13:31:53,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:31:53,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907300572] [2024-11-13 13:31:53,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:31:53,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:31:53,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:31:53,998 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:31:53,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:31:53,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907300572] [2024-11-13 13:31:53,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907300572] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:31:53,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:31:53,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 13:31:53,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236292423] [2024-11-13 13:31:53,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:31:53,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:31:53,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:31:54,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:31:54,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:31:54,000 INFO L87 Difference]: Start difference. First operand 1741 states and 2541 transitions. Second operand has 5 states, 5 states have (on average 56.4) internal successors, (282), 5 states have internal predecessors, (282), 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 13:31:54,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:31:54,123 INFO L93 Difference]: Finished difference Result 2190 states and 3210 transitions. [2024-11-13 13:31:54,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:31:54,124 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 56.4) internal successors, (282), 5 states have internal predecessors, (282), 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 282 [2024-11-13 13:31:54,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:31:54,128 INFO L225 Difference]: With dead ends: 2190 [2024-11-13 13:31:54,128 INFO L226 Difference]: Without dead ends: 1343 [2024-11-13 13:31:54,129 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:31:54,130 INFO L432 NwaCegarLoop]: 724 mSDtfsCounter, 1785 mSDsluCounter, 1442 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1785 SdHoareTripleChecker+Valid, 2166 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:31:54,130 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1785 Valid, 2166 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:31:54,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1343 states. [2024-11-13 13:31:54,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1343 to 1343. [2024-11-13 13:31:54,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1343 states, 1342 states have (on average 1.4687034277198212) internal successors, (1971), 1342 states have internal predecessors, (1971), 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 13:31:54,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1343 states to 1343 states and 1971 transitions. [2024-11-13 13:31:54,151 INFO L78 Accepts]: Start accepts. Automaton has 1343 states and 1971 transitions. Word has length 282 [2024-11-13 13:31:54,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:31:54,152 INFO L471 AbstractCegarLoop]: Abstraction has 1343 states and 1971 transitions. [2024-11-13 13:31:54,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 56.4) internal successors, (282), 5 states have internal predecessors, (282), 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 13:31:54,152 INFO L276 IsEmpty]: Start isEmpty. Operand 1343 states and 1971 transitions. [2024-11-13 13:31:54,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 506 [2024-11-13 13:31:54,156 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:31:54,157 INFO L215 NwaCegarLoop]: trace histogram [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, 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] [2024-11-13 13:31:54,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-13 13:31:54,158 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:31:54,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:31:54,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1889648364, now seen corresponding path program 1 times [2024-11-13 13:31:54,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:31:54,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192387949] [2024-11-13 13:31:54,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:31:54,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:32:02,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:32:06,666 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 225 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:32:06,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:32:06,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192387949] [2024-11-13 13:32:06,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192387949] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:32:06,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [688966939] [2024-11-13 13:32:06,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:32:06,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:32:06,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:32:06,670 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:32:06,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 13:32:08,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:32:08,745 INFO L255 TraceCheckSpWp]: Trace formula consists of 3256 conjuncts, 83 conjuncts are in the unsatisfiable core [2024-11-13 13:32:08,765 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:32:10,887 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 131 proven. 104 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:32:10,887 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:32:14,198 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 131 proven. 104 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:32:14,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [688966939] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:32:14,198 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:32:14,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 14, 13] total 40 [2024-11-13 13:32:14,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016669539] [2024-11-13 13:32:14,199 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:32:14,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2024-11-13 13:32:14,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:32:14,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2024-11-13 13:32:14,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=172, Invalid=1388, Unknown=0, NotChecked=0, Total=1560 [2024-11-13 13:32:14,203 INFO L87 Difference]: Start difference. First operand 1343 states and 1971 transitions. Second operand has 40 states, 40 states have (on average 34.525) internal successors, (1381), 40 states have internal predecessors, (1381), 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 13:32:22,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:32:22,169 INFO L93 Difference]: Finished difference Result 8658 states and 12886 transitions. [2024-11-13 13:32:22,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2024-11-13 13:32:22,170 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 34.525) internal successors, (1381), 40 states have internal predecessors, (1381), 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 505 [2024-11-13 13:32:22,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:32:22,184 INFO L225 Difference]: With dead ends: 8658 [2024-11-13 13:32:22,184 INFO L226 Difference]: Without dead ends: 7773 [2024-11-13 13:32:22,188 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1079 GetRequests, 987 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1719 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=1084, Invalid=7658, Unknown=0, NotChecked=0, Total=8742 [2024-11-13 13:32:22,188 INFO L432 NwaCegarLoop]: 2187 mSDtfsCounter, 16739 mSDsluCounter, 54210 mSDsCounter, 0 mSdLazyCounter, 7414 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16739 SdHoareTripleChecker+Valid, 56397 SdHoareTripleChecker+Invalid, 7439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 7414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2024-11-13 13:32:22,189 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16739 Valid, 56397 Invalid, 7439 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [25 Valid, 7414 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2024-11-13 13:32:22,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7773 states. [2024-11-13 13:32:22,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7773 to 2566. [2024-11-13 13:32:22,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2566 states, 2565 states have (on average 1.4674463937621833) internal successors, (3764), 2565 states have internal predecessors, (3764), 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 13:32:22,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2566 states to 2566 states and 3764 transitions. [2024-11-13 13:32:22,239 INFO L78 Accepts]: Start accepts. Automaton has 2566 states and 3764 transitions. Word has length 505 [2024-11-13 13:32:22,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:32:22,239 INFO L471 AbstractCegarLoop]: Abstraction has 2566 states and 3764 transitions. [2024-11-13 13:32:22,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 34.525) internal successors, (1381), 40 states have internal predecessors, (1381), 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 13:32:22,240 INFO L276 IsEmpty]: Start isEmpty. Operand 2566 states and 3764 transitions. [2024-11-13 13:32:22,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 508 [2024-11-13 13:32:22,245 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:32:22,246 INFO L215 NwaCegarLoop]: trace histogram [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, 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] [2024-11-13 13:32:22,282 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 13:32:22,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-11-13 13:32:22,447 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:32:22,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:32:22,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1218438763, now seen corresponding path program 1 times [2024-11-13 13:32:22,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:32:22,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101056887] [2024-11-13 13:32:22,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:32:22,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:32:28,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:32:29,859 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 157 proven. 79 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:32:29,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:32:29,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101056887] [2024-11-13 13:32:29,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101056887] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:32:29,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1965771908] [2024-11-13 13:32:29,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:32:29,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:32:29,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:32:29,861 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:32:29,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 13:32:31,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:32:31,649 INFO L255 TraceCheckSpWp]: Trace formula consists of 3260 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-11-13 13:32:31,664 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:32:32,248 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 227 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-13 13:32:32,248 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:32:32,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1965771908] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:32:32,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:32:32,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8] total 15 [2024-11-13 13:32:32,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722355788] [2024-11-13 13:32:32,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:32:32,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 13:32:32,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:32:32,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 13:32:32,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2024-11-13 13:32:32,251 INFO L87 Difference]: Start difference. First operand 2566 states and 3764 transitions. Second operand has 9 states, 9 states have (on average 55.55555555555556) internal successors, (500), 9 states have internal predecessors, (500), 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 13:32:32,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:32:32,679 INFO L93 Difference]: Finished difference Result 4550 states and 6728 transitions. [2024-11-13 13:32:32,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 13:32:32,680 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 55.55555555555556) internal successors, (500), 9 states have internal predecessors, (500), 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 507 [2024-11-13 13:32:32,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:32:32,688 INFO L225 Difference]: With dead ends: 4550 [2024-11-13 13:32:32,688 INFO L226 Difference]: Without dead ends: 3639 [2024-11-13 13:32:32,690 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 517 GetRequests, 502 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2024-11-13 13:32:32,691 INFO L432 NwaCegarLoop]: 1522 mSDtfsCounter, 1248 mSDsluCounter, 7735 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1248 SdHoareTripleChecker+Valid, 9257 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 13:32:32,691 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1248 Valid, 9257 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 13:32:32,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3639 states. [2024-11-13 13:32:32,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3639 to 2858. [2024-11-13 13:32:32,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2858 states, 2857 states have (on average 1.4700735036751837) internal successors, (4200), 2857 states have internal predecessors, (4200), 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 13:32:32,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2858 states to 2858 states and 4200 transitions. [2024-11-13 13:32:32,733 INFO L78 Accepts]: Start accepts. Automaton has 2858 states and 4200 transitions. Word has length 507 [2024-11-13 13:32:32,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:32:32,733 INFO L471 AbstractCegarLoop]: Abstraction has 2858 states and 4200 transitions. [2024-11-13 13:32:32,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 55.55555555555556) internal successors, (500), 9 states have internal predecessors, (500), 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 13:32:32,734 INFO L276 IsEmpty]: Start isEmpty. Operand 2858 states and 4200 transitions. [2024-11-13 13:32:32,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 508 [2024-11-13 13:32:32,739 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:32:32,739 INFO L215 NwaCegarLoop]: trace histogram [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, 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] [2024-11-13 13:32:32,770 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-13 13:32:32,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:32:32,940 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:32:32,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:32:32,941 INFO L85 PathProgramCache]: Analyzing trace with hash -1099504075, now seen corresponding path program 1 times [2024-11-13 13:32:32,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:32:32,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551970236] [2024-11-13 13:32:32,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:32:32,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:32:38,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:32:39,689 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 209 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:32:39,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:32:39,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551970236] [2024-11-13 13:32:39,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551970236] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:32:39,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [641328275] [2024-11-13 13:32:39,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:32:39,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:32:39,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:32:39,693 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:32:39,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-13 13:32:41,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:32:41,603 INFO L255 TraceCheckSpWp]: Trace formula consists of 3260 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-11-13 13:32:41,615 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:32:43,460 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 211 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:32:43,461 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:32:45,802 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 210 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:32:45,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [641328275] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:32:45,802 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:32:45,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 11, 11] total 26 [2024-11-13 13:32:45,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211241103] [2024-11-13 13:32:45,803 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:32:45,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-13 13:32:45,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:32:45,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-13 13:32:45,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=567, Unknown=0, NotChecked=0, Total=650 [2024-11-13 13:32:45,806 INFO L87 Difference]: Start difference. First operand 2858 states and 4200 transitions. Second operand has 26 states, 26 states have (on average 51.42307692307692) internal successors, (1337), 26 states have internal predecessors, (1337), 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 13:32:50,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:32:50,583 INFO L93 Difference]: Finished difference Result 17720 states and 26343 transitions. [2024-11-13 13:32:50,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2024-11-13 13:32:50,584 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 51.42307692307692) internal successors, (1337), 26 states have internal predecessors, (1337), 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 507 [2024-11-13 13:32:50,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:32:50,616 INFO L225 Difference]: With dead ends: 17720 [2024-11-13 13:32:50,616 INFO L226 Difference]: Without dead ends: 15929 [2024-11-13 13:32:50,624 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1083 GetRequests, 1002 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1658 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=864, Invalid=5942, Unknown=0, NotChecked=0, Total=6806 [2024-11-13 13:32:50,625 INFO L432 NwaCegarLoop]: 2282 mSDtfsCounter, 9531 mSDsluCounter, 31325 mSDsCounter, 0 mSdLazyCounter, 4533 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9531 SdHoareTripleChecker+Valid, 33607 SdHoareTripleChecker+Invalid, 4538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 4533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-13 13:32:50,625 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9531 Valid, 33607 Invalid, 4538 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 4533 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-13 13:32:50,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15929 states. [2024-11-13 13:32:50,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15929 to 6495. [2024-11-13 13:32:50,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6495 states, 6494 states have (on average 1.4755158607945795) internal successors, (9582), 6494 states have internal predecessors, (9582), 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 13:32:50,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6495 states to 6495 states and 9582 transitions. [2024-11-13 13:32:50,800 INFO L78 Accepts]: Start accepts. Automaton has 6495 states and 9582 transitions. Word has length 507 [2024-11-13 13:32:50,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:32:50,800 INFO L471 AbstractCegarLoop]: Abstraction has 6495 states and 9582 transitions. [2024-11-13 13:32:50,801 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 51.42307692307692) internal successors, (1337), 26 states have internal predecessors, (1337), 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 13:32:50,801 INFO L276 IsEmpty]: Start isEmpty. Operand 6495 states and 9582 transitions. [2024-11-13 13:32:50,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 508 [2024-11-13 13:32:50,810 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:32:50,811 INFO L215 NwaCegarLoop]: trace histogram [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, 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] [2024-11-13 13:32:50,847 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-13 13:32:51,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-11-13 13:32:51,012 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:32:51,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:32:51,013 INFO L85 PathProgramCache]: Analyzing trace with hash 323144063, now seen corresponding path program 1 times [2024-11-13 13:32:51,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:32:51,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532786234] [2024-11-13 13:32:51,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:32:51,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:32:57,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:32:59,024 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 157 proven. 79 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:32:59,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:32:59,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532786234] [2024-11-13 13:32:59,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532786234] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:32:59,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [642149169] [2024-11-13 13:32:59,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:32:59,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:32:59,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:32:59,026 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:32:59,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-13 13:33:01,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:33:01,385 INFO L255 TraceCheckSpWp]: Trace formula consists of 3262 conjuncts, 73 conjuncts are in the unsatisfiable core [2024-11-13 13:33:01,405 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:33:08,460 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 13 proven. 223 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:33:08,461 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:33:15,627 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 231 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:33:15,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [642149169] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:33:15,627 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:33:15,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 11, 10] total 25 [2024-11-13 13:33:15,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460548498] [2024-11-13 13:33:15,627 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:33:15,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-13 13:33:15,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:33:15,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-13 13:33:15,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=513, Unknown=0, NotChecked=0, Total=600 [2024-11-13 13:33:15,629 INFO L87 Difference]: Start difference. First operand 6495 states and 9582 transitions. Second operand has 25 states, 25 states have (on average 60.2) internal successors, (1505), 25 states have internal predecessors, (1505), 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 13:33:21,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:33:21,011 INFO L93 Difference]: Finished difference Result 23083 states and 34308 transitions. [2024-11-13 13:33:21,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2024-11-13 13:33:21,012 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 60.2) internal successors, (1505), 25 states have internal predecessors, (1505), 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 507 [2024-11-13 13:33:21,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:33:21,044 INFO L225 Difference]: With dead ends: 23083 [2024-11-13 13:33:21,044 INFO L226 Difference]: Without dead ends: 18857 [2024-11-13 13:33:21,056 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1104 GetRequests, 1003 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3262 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=1184, Invalid=9322, Unknown=0, NotChecked=0, Total=10506 [2024-11-13 13:33:21,056 INFO L432 NwaCegarLoop]: 1211 mSDtfsCounter, 16116 mSDsluCounter, 16229 mSDsCounter, 0 mSdLazyCounter, 2773 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16116 SdHoareTripleChecker+Valid, 17440 SdHoareTripleChecker+Invalid, 2793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 2773 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:33:21,057 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16116 Valid, 17440 Invalid, 2793 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 2773 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-13 13:33:21,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18857 states. [2024-11-13 13:33:21,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18857 to 12493. [2024-11-13 13:33:21,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12493 states, 12492 states have (on average 1.4822286263208453) internal successors, (18516), 12492 states have internal predecessors, (18516), 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 13:33:21,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12493 states to 12493 states and 18516 transitions. [2024-11-13 13:33:21,301 INFO L78 Accepts]: Start accepts. Automaton has 12493 states and 18516 transitions. Word has length 507 [2024-11-13 13:33:21,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:33:21,302 INFO L471 AbstractCegarLoop]: Abstraction has 12493 states and 18516 transitions. [2024-11-13 13:33:21,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 60.2) internal successors, (1505), 25 states have internal predecessors, (1505), 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 13:33:21,302 INFO L276 IsEmpty]: Start isEmpty. Operand 12493 states and 18516 transitions. [2024-11-13 13:33:21,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 509 [2024-11-13 13:33:21,319 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:33:21,321 INFO L215 NwaCegarLoop]: trace histogram [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, 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 13:33:21,358 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-13 13:33:21,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-11-13 13:33:21,522 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:33:21,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:33:21,523 INFO L85 PathProgramCache]: Analyzing trace with hash -493197414, now seen corresponding path program 1 times [2024-11-13 13:33:21,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:33:21,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170585934] [2024-11-13 13:33:21,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:33:21,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:33:22,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:33:22,750 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2024-11-13 13:33:22,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:33:22,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170585934] [2024-11-13 13:33:22,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170585934] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:33:22,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:33:22,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 13:33:22,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823788050] [2024-11-13 13:33:22,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:33:22,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:33:22,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:33:22,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:33:22,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:33:22,752 INFO L87 Difference]: Start difference. First operand 12493 states and 18516 transitions. Second operand has 5 states, 5 states have (on average 62.0) internal successors, (310), 5 states have internal predecessors, (310), 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 13:33:22,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:33:22,869 INFO L93 Difference]: Finished difference Result 24174 states and 35868 transitions. [2024-11-13 13:33:22,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:33:22,870 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 62.0) internal successors, (310), 5 states have internal predecessors, (310), 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 508 [2024-11-13 13:33:22,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:33:22,894 INFO L225 Difference]: With dead ends: 24174 [2024-11-13 13:33:22,895 INFO L226 Difference]: Without dead ends: 11757 [2024-11-13 13:33:22,905 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:33:22,906 INFO L432 NwaCegarLoop]: 723 mSDtfsCounter, 1922 mSDsluCounter, 1440 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1922 SdHoareTripleChecker+Valid, 2163 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:33:22,906 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1922 Valid, 2163 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:33:22,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11757 states. [2024-11-13 13:33:23,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11757 to 11757. [2024-11-13 13:33:23,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11757 states, 11756 states have (on average 1.4846886696155155) internal successors, (17454), 11756 states have internal predecessors, (17454), 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 13:33:23,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11757 states to 11757 states and 17454 transitions. [2024-11-13 13:33:23,063 INFO L78 Accepts]: Start accepts. Automaton has 11757 states and 17454 transitions. Word has length 508 [2024-11-13 13:33:23,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:33:23,064 INFO L471 AbstractCegarLoop]: Abstraction has 11757 states and 17454 transitions. [2024-11-13 13:33:23,064 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 62.0) internal successors, (310), 5 states have internal predecessors, (310), 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 13:33:23,064 INFO L276 IsEmpty]: Start isEmpty. Operand 11757 states and 17454 transitions. [2024-11-13 13:33:23,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 510 [2024-11-13 13:33:23,074 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:33:23,075 INFO L215 NwaCegarLoop]: trace histogram [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, 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] [2024-11-13 13:33:23,075 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-13 13:33:23,075 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:33:23,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:33:23,076 INFO L85 PathProgramCache]: Analyzing trace with hash 1846194401, now seen corresponding path program 1 times [2024-11-13 13:33:23,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:33:23,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254487644] [2024-11-13 13:33:23,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:33:23,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:33:29,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:33:31,525 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 183 proven. 53 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:33:31,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:33:31,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254487644] [2024-11-13 13:33:31,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254487644] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:33:31,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [960370354] [2024-11-13 13:33:31,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:33:31,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:33:31,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:33:31,528 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:33:31,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-13 13:33:33,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:33:33,805 INFO L255 TraceCheckSpWp]: Trace formula consists of 3266 conjuncts, 58 conjuncts are in the unsatisfiable core [2024-11-13 13:33:33,816 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:33:34,385 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 223 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-13 13:33:34,385 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:33:34,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [960370354] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:33:34,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:33:34,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [9] total 19 [2024-11-13 13:33:34,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649805194] [2024-11-13 13:33:34,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:33:34,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 13:33:34,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:33:34,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 13:33:34,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2024-11-13 13:33:34,388 INFO L87 Difference]: Start difference. First operand 11757 states and 17454 transitions. Second operand has 13 states, 13 states have (on average 38.38461538461539) internal successors, (499), 13 states have internal predecessors, (499), 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 13:33:34,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:33:34,814 INFO L93 Difference]: Finished difference Result 41135 states and 61311 transitions. [2024-11-13 13:33:34,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 13:33:34,815 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 38.38461538461539) internal successors, (499), 13 states have internal predecessors, (499), 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 509 [2024-11-13 13:33:34,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:33:34,849 INFO L225 Difference]: With dead ends: 41135 [2024-11-13 13:33:34,849 INFO L226 Difference]: Without dead ends: 30593 [2024-11-13 13:33:34,864 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 518 GetRequests, 499 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2024-11-13 13:33:34,865 INFO L432 NwaCegarLoop]: 1704 mSDtfsCounter, 991 mSDsluCounter, 13019 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 991 SdHoareTripleChecker+Valid, 14723 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 13:33:34,865 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [991 Valid, 14723 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 13:33:34,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30593 states. [2024-11-13 13:33:35,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30593 to 15105. [2024-11-13 13:33:35,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15105 states, 15104 states have (on average 1.4831832627118644) internal successors, (22402), 15104 states have internal predecessors, (22402), 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 13:33:35,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15105 states to 15105 states and 22402 transitions. [2024-11-13 13:33:35,123 INFO L78 Accepts]: Start accepts. Automaton has 15105 states and 22402 transitions. Word has length 509 [2024-11-13 13:33:35,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:33:35,124 INFO L471 AbstractCegarLoop]: Abstraction has 15105 states and 22402 transitions. [2024-11-13 13:33:35,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 38.38461538461539) internal successors, (499), 13 states have internal predecessors, (499), 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 13:33:35,124 INFO L276 IsEmpty]: Start isEmpty. Operand 15105 states and 22402 transitions. [2024-11-13 13:33:35,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 510 [2024-11-13 13:33:35,141 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:33:35,141 INFO L215 NwaCegarLoop]: trace histogram [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, 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] [2024-11-13 13:33:35,176 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-13 13:33:35,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-11-13 13:33:35,342 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:33:35,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:33:35,343 INFO L85 PathProgramCache]: Analyzing trace with hash 1707276940, now seen corresponding path program 1 times [2024-11-13 13:33:35,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:33:35,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676733983] [2024-11-13 13:33:35,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:33:35,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:33:42,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:33:43,464 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 225 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 13:33:43,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:33:43,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676733983] [2024-11-13 13:33:43,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676733983] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:33:43,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [262146878] [2024-11-13 13:33:43,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:33:43,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:33:43,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:33:43,469 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:33:43,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-13 13:33:46,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:33:46,315 INFO L255 TraceCheckSpWp]: Trace formula consists of 3264 conjuncts, 79 conjuncts are in the unsatisfiable core [2024-11-13 13:33:46,327 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:33:48,854 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 211 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:33:48,854 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:33:54,652 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 205 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:33:54,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [262146878] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:33:54,652 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:33:54,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 17, 22] total 41 [2024-11-13 13:33:54,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672530044] [2024-11-13 13:33:54,653 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:33:54,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2024-11-13 13:33:54,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:33:54,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2024-11-13 13:33:54,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=1482, Unknown=0, NotChecked=0, Total=1640 [2024-11-13 13:33:54,655 INFO L87 Difference]: Start difference. First operand 15105 states and 22402 transitions. Second operand has 41 states, 41 states have (on average 32.048780487804876) internal successors, (1314), 41 states have internal predecessors, (1314), 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 13:33:59,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:33:59,184 INFO L93 Difference]: Finished difference Result 36717 states and 54567 transitions. [2024-11-13 13:33:59,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-11-13 13:33:59,185 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 32.048780487804876) internal successors, (1314), 41 states have internal predecessors, (1314), 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 509 [2024-11-13 13:33:59,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:33:59,204 INFO L225 Difference]: With dead ends: 36717 [2024-11-13 13:33:59,205 INFO L226 Difference]: Without dead ends: 23619 [2024-11-13 13:33:59,221 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1055 GetRequests, 984 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 974 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=505, Invalid=4751, Unknown=0, NotChecked=0, Total=5256 [2024-11-13 13:33:59,222 INFO L432 NwaCegarLoop]: 1097 mSDtfsCounter, 7042 mSDsluCounter, 26332 mSDsCounter, 0 mSdLazyCounter, 5088 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7042 SdHoareTripleChecker+Valid, 27429 SdHoareTripleChecker+Invalid, 5101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 5088 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:33:59,222 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7042 Valid, 27429 Invalid, 5101 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13 Valid, 5088 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-13 13:33:59,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23619 states. [2024-11-13 13:33:59,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23619 to 14281. [2024-11-13 13:33:59,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14281 states, 14280 states have (on average 1.4798319327731093) internal successors, (21132), 14280 states have internal predecessors, (21132), 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 13:33:59,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14281 states to 14281 states and 21132 transitions. [2024-11-13 13:33:59,423 INFO L78 Accepts]: Start accepts. Automaton has 14281 states and 21132 transitions. Word has length 509 [2024-11-13 13:33:59,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:33:59,423 INFO L471 AbstractCegarLoop]: Abstraction has 14281 states and 21132 transitions. [2024-11-13 13:33:59,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 32.048780487804876) internal successors, (1314), 41 states have internal predecessors, (1314), 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 13:33:59,424 INFO L276 IsEmpty]: Start isEmpty. Operand 14281 states and 21132 transitions. [2024-11-13 13:33:59,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 510 [2024-11-13 13:33:59,434 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:33:59,434 INFO L215 NwaCegarLoop]: trace histogram [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, 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] [2024-11-13 13:33:59,469 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-13 13:33:59,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-11-13 13:33:59,635 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:33:59,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:33:59,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1892139900, now seen corresponding path program 1 times [2024-11-13 13:33:59,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:33:59,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459021718] [2024-11-13 13:33:59,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:33:59,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:34:00,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:34:03,376 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 230 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-13 13:34:03,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:34:03,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459021718] [2024-11-13 13:34:03,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459021718] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:34:03,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:34:03,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-13 13:34:03,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770600284] [2024-11-13 13:34:03,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:34:03,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 13:34:03,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:34:03,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 13:34:03,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-13 13:34:03,379 INFO L87 Difference]: Start difference. First operand 14281 states and 21132 transitions. Second operand has 9 states, 9 states have (on average 56.111111111111114) internal successors, (505), 9 states have internal predecessors, (505), 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 13:34:03,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:34:03,561 INFO L93 Difference]: Finished difference Result 27453 states and 40681 transitions. [2024-11-13 13:34:03,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 13:34:03,562 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 56.111111111111114) internal successors, (505), 9 states have internal predecessors, (505), 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 509 [2024-11-13 13:34:03,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:34:03,571 INFO L225 Difference]: With dead ends: 27453 [2024-11-13 13:34:03,571 INFO L226 Difference]: Without dead ends: 14303 [2024-11-13 13:34:03,577 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2024-11-13 13:34:03,577 INFO L432 NwaCegarLoop]: 725 mSDtfsCounter, 1748 mSDsluCounter, 3497 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1748 SdHoareTripleChecker+Valid, 4222 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:34:03,578 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1748 Valid, 4222 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:34:03,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14303 states. [2024-11-13 13:34:03,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14303 to 14297. [2024-11-13 13:34:03,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14297 states, 14296 states have (on average 1.4797146054840515) internal successors, (21154), 14296 states have internal predecessors, (21154), 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 13:34:03,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14297 states to 14297 states and 21154 transitions. [2024-11-13 13:34:03,729 INFO L78 Accepts]: Start accepts. Automaton has 14297 states and 21154 transitions. Word has length 509 [2024-11-13 13:34:03,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:34:03,729 INFO L471 AbstractCegarLoop]: Abstraction has 14297 states and 21154 transitions. [2024-11-13 13:34:03,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 56.111111111111114) internal successors, (505), 9 states have internal predecessors, (505), 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 13:34:03,730 INFO L276 IsEmpty]: Start isEmpty. Operand 14297 states and 21154 transitions. [2024-11-13 13:34:03,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 511 [2024-11-13 13:34:03,739 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:34:03,739 INFO L215 NwaCegarLoop]: trace histogram [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, 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] [2024-11-13 13:34:03,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-13 13:34:03,739 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:34:03,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:34:03,740 INFO L85 PathProgramCache]: Analyzing trace with hash -133392933, now seen corresponding path program 1 times [2024-11-13 13:34:03,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:34:03,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138813864] [2024-11-13 13:34:03,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:34:03,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:34:10,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:34:13,364 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 179 proven. 27 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-13 13:34:13,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:34:13,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138813864] [2024-11-13 13:34:13,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138813864] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:34:13,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [226217103] [2024-11-13 13:34:13,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:34:13,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:34:13,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:34:13,366 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:34:13,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-13 13:34:15,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:34:15,907 INFO L255 TraceCheckSpWp]: Trace formula consists of 3267 conjuncts, 171 conjuncts are in the unsatisfiable core [2024-11-13 13:34:15,919 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:34:20,056 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 167 proven. 71 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:34:20,057 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:34:22,357 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 229 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-13 13:34:22,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [226217103] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 13:34:22,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-13 13:34:22,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [9, 27] total 45 [2024-11-13 13:34:22,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33083109] [2024-11-13 13:34:22,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:34:22,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 13:34:22,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:34:22,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 13:34:22,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=198, Invalid=1782, Unknown=0, NotChecked=0, Total=1980 [2024-11-13 13:34:22,360 INFO L87 Difference]: Start difference. First operand 14297 states and 21154 transitions. Second operand has 13 states, 13 states have (on average 38.69230769230769) internal successors, (503), 13 states have internal predecessors, (503), 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 13:34:23,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:34:23,776 INFO L93 Difference]: Finished difference Result 30827 states and 45742 transitions. [2024-11-13 13:34:23,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-13 13:34:23,776 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 38.69230769230769) internal successors, (503), 13 states have internal predecessors, (503), 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 510 [2024-11-13 13:34:23,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:34:23,793 INFO L225 Difference]: With dead ends: 30827 [2024-11-13 13:34:23,793 INFO L226 Difference]: Without dead ends: 24265 [2024-11-13 13:34:23,801 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1038 GetRequests, 988 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 673 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=281, Invalid=2371, Unknown=0, NotChecked=0, Total=2652 [2024-11-13 13:34:23,802 INFO L432 NwaCegarLoop]: 1616 mSDtfsCounter, 2906 mSDsluCounter, 9598 mSDsCounter, 0 mSdLazyCounter, 1287 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2906 SdHoareTripleChecker+Valid, 11214 SdHoareTripleChecker+Invalid, 1292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:34:23,802 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2906 Valid, 11214 Invalid, 1292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1287 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-13 13:34:23,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24265 states. [2024-11-13 13:34:23,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24265 to 21123. [2024-11-13 13:34:23,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21123 states, 21122 states have (on average 1.4816778714136918) internal successors, (31296), 21122 states have internal predecessors, (31296), 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 13:34:24,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21123 states to 21123 states and 31296 transitions. [2024-11-13 13:34:24,005 INFO L78 Accepts]: Start accepts. Automaton has 21123 states and 31296 transitions. Word has length 510 [2024-11-13 13:34:24,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:34:24,005 INFO L471 AbstractCegarLoop]: Abstraction has 21123 states and 31296 transitions. [2024-11-13 13:34:24,005 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 38.69230769230769) internal successors, (503), 13 states have internal predecessors, (503), 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 13:34:24,006 INFO L276 IsEmpty]: Start isEmpty. Operand 21123 states and 31296 transitions. [2024-11-13 13:34:24,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 511 [2024-11-13 13:34:24,014 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:34:24,014 INFO L215 NwaCegarLoop]: trace histogram [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, 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] [2024-11-13 13:34:24,052 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-13 13:34:24,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2024-11-13 13:34:24,215 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:34:24,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:34:24,215 INFO L85 PathProgramCache]: Analyzing trace with hash 1915082615, now seen corresponding path program 1 times [2024-11-13 13:34:24,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:34:24,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406595464] [2024-11-13 13:34:24,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:34:24,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:34:30,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:34:32,352 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 185 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:34:32,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:34:32,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406595464] [2024-11-13 13:34:32,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406595464] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:34:32,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [170649527] [2024-11-13 13:34:32,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:34:32,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:34:32,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:34:32,355 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:34:32,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-13 13:34:34,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:34:34,709 INFO L255 TraceCheckSpWp]: Trace formula consists of 3265 conjuncts, 62 conjuncts are in the unsatisfiable core [2024-11-13 13:34:34,718 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:34:35,685 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 222 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:34:35,685 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:34:37,765 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 213 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:34:37,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [170649527] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:34:37,765 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:34:37,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 11] total 24 [2024-11-13 13:34:37,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854185058] [2024-11-13 13:34:37,766 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:34:37,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-13 13:34:37,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:34:37,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-13 13:34:37,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=480, Unknown=0, NotChecked=0, Total=552 [2024-11-13 13:34:37,768 INFO L87 Difference]: Start difference. First operand 21123 states and 31296 transitions. Second operand has 24 states, 24 states have (on average 55.916666666666664) internal successors, (1342), 24 states have internal predecessors, (1342), 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 13:34:42,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:34:42,443 INFO L93 Difference]: Finished difference Result 46531 states and 69034 transitions. [2024-11-13 13:34:42,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-11-13 13:34:42,444 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 55.916666666666664) internal successors, (1342), 24 states have internal predecessors, (1342), 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 510 [2024-11-13 13:34:42,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:34:42,469 INFO L225 Difference]: With dead ends: 46531 [2024-11-13 13:34:42,469 INFO L226 Difference]: Without dead ends: 26479 [2024-11-13 13:34:42,481 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1067 GetRequests, 1005 SyntacticMatches, 1 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 778 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=724, Invalid=3182, Unknown=0, NotChecked=0, Total=3906 [2024-11-13 13:34:42,481 INFO L432 NwaCegarLoop]: 2090 mSDtfsCounter, 8449 mSDsluCounter, 22065 mSDsCounter, 0 mSdLazyCounter, 3013 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8449 SdHoareTripleChecker+Valid, 24155 SdHoareTripleChecker+Invalid, 3025 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 3013 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:34:42,481 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8449 Valid, 24155 Invalid, 3025 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [12 Valid, 3013 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-13 13:34:42,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26479 states. [2024-11-13 13:34:42,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26479 to 11601. [2024-11-13 13:34:42,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11601 states, 11600 states have (on average 1.4682758620689655) internal successors, (17032), 11600 states have internal predecessors, (17032), 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 13:34:42,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11601 states to 11601 states and 17032 transitions. [2024-11-13 13:34:42,626 INFO L78 Accepts]: Start accepts. Automaton has 11601 states and 17032 transitions. Word has length 510 [2024-11-13 13:34:42,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:34:42,627 INFO L471 AbstractCegarLoop]: Abstraction has 11601 states and 17032 transitions. [2024-11-13 13:34:42,627 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 55.916666666666664) internal successors, (1342), 24 states have internal predecessors, (1342), 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 13:34:42,627 INFO L276 IsEmpty]: Start isEmpty. Operand 11601 states and 17032 transitions. [2024-11-13 13:34:42,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 512 [2024-11-13 13:34:42,632 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:34:42,632 INFO L215 NwaCegarLoop]: trace histogram [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, 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] [2024-11-13 13:34:42,655 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-13 13:34:42,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:34:42,833 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:34:42,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:34:42,833 INFO L85 PathProgramCache]: Analyzing trace with hash -204969024, now seen corresponding path program 1 times [2024-11-13 13:34:42,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:34:42,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3061378] [2024-11-13 13:34:42,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:34:42,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:34:49,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:34:53,081 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 229 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:34:53,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:34:53,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3061378] [2024-11-13 13:34:53,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3061378] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:34:53,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [77296047] [2024-11-13 13:34:53,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:34:53,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:34:53,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:34:53,084 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:34:53,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-13 13:34:55,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:34:55,568 INFO L255 TraceCheckSpWp]: Trace formula consists of 3268 conjuncts, 49 conjuncts are in the unsatisfiable core [2024-11-13 13:34:55,576 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:34:56,165 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 170 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2024-11-13 13:34:56,165 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:34:56,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [77296047] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:34:56,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:34:56,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2024-11-13 13:34:56,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665670157] [2024-11-13 13:34:56,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:34:56,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 13:34:56,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:34:56,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 13:34:56,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-13 13:34:56,169 INFO L87 Difference]: Start difference. First operand 11601 states and 17032 transitions. Second operand has 7 states, 7 states have (on average 64.71428571428571) internal successors, (453), 7 states have internal predecessors, (453), 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 13:34:56,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:34:56,444 INFO L93 Difference]: Finished difference Result 25841 states and 38121 transitions. [2024-11-13 13:34:56,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 13:34:56,445 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 64.71428571428571) internal successors, (453), 7 states have internal predecessors, (453), 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 511 [2024-11-13 13:34:56,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:34:56,456 INFO L225 Difference]: With dead ends: 25841 [2024-11-13 13:34:56,456 INFO L226 Difference]: Without dead ends: 17535 [2024-11-13 13:34:56,463 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 521 GetRequests, 508 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-11-13 13:34:56,464 INFO L432 NwaCegarLoop]: 1088 mSDtfsCounter, 728 mSDsluCounter, 3590 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 728 SdHoareTripleChecker+Valid, 4678 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:34:56,464 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [728 Valid, 4678 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:34:56,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17535 states. [2024-11-13 13:34:56,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17535 to 15025. [2024-11-13 13:34:56,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15025 states, 15024 states have (on average 1.4733759318423856) internal successors, (22136), 15024 states have internal predecessors, (22136), 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 13:34:56,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15025 states to 15025 states and 22136 transitions. [2024-11-13 13:34:56,589 INFO L78 Accepts]: Start accepts. Automaton has 15025 states and 22136 transitions. Word has length 511 [2024-11-13 13:34:56,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:34:56,590 INFO L471 AbstractCegarLoop]: Abstraction has 15025 states and 22136 transitions. [2024-11-13 13:34:56,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 64.71428571428571) internal successors, (453), 7 states have internal predecessors, (453), 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 13:34:56,590 INFO L276 IsEmpty]: Start isEmpty. Operand 15025 states and 22136 transitions. [2024-11-13 13:34:56,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 513 [2024-11-13 13:34:56,595 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:34:56,596 INFO L215 NwaCegarLoop]: trace histogram [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, 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 13:34:56,619 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-13 13:34:56,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:34:56,796 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:34:56,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:34:56,797 INFO L85 PathProgramCache]: Analyzing trace with hash -595490184, now seen corresponding path program 1 times [2024-11-13 13:34:56,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:34:56,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965653576] [2024-11-13 13:34:56,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:34:56,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:35:03,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:35:04,674 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 85 proven. 153 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:35:04,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:35:04,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965653576] [2024-11-13 13:35:04,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965653576] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:35:04,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1843661695] [2024-11-13 13:35:04,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:35:04,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:35:04,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:35:04,676 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:35:04,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-13 13:35:07,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:35:07,658 INFO L255 TraceCheckSpWp]: Trace formula consists of 3271 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-11-13 13:35:07,667 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:35:11,035 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 73 proven. 165 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:35:11,035 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:35:11,770 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 187 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-11-13 13:35:11,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1843661695] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 13:35:11,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-13 13:35:11,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 10] total 21 [2024-11-13 13:35:11,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976386690] [2024-11-13 13:35:11,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:35:11,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 13:35:11,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:35:11,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 13:35:11,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2024-11-13 13:35:11,772 INFO L87 Difference]: Start difference. First operand 15025 states and 22136 transitions. Second operand has 7 states, 7 states have (on average 67.0) internal successors, (469), 7 states have internal predecessors, (469), 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 13:35:11,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:35:11,973 INFO L93 Difference]: Finished difference Result 27003 states and 39865 transitions. [2024-11-13 13:35:11,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 13:35:11,974 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 67.0) internal successors, (469), 7 states have internal predecessors, (469), 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 512 [2024-11-13 13:35:11,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:35:11,984 INFO L225 Difference]: With dead ends: 27003 [2024-11-13 13:35:11,984 INFO L226 Difference]: Without dead ends: 15561 [2024-11-13 13:35:11,990 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1032 GetRequests, 1011 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=79, Invalid=427, Unknown=0, NotChecked=0, Total=506 [2024-11-13 13:35:11,990 INFO L432 NwaCegarLoop]: 1129 mSDtfsCounter, 789 mSDsluCounter, 2939 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 789 SdHoareTripleChecker+Valid, 4068 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:35:11,990 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [789 Valid, 4068 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:35:11,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15561 states. [2024-11-13 13:35:12,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15561 to 15297. [2024-11-13 13:35:12,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15297 states, 15296 states have (on average 1.4728033472803348) internal successors, (22528), 15296 states have internal predecessors, (22528), 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 13:35:12,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15297 states to 15297 states and 22528 transitions. [2024-11-13 13:35:12,193 INFO L78 Accepts]: Start accepts. Automaton has 15297 states and 22528 transitions. Word has length 512 [2024-11-13 13:35:12,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:35:12,193 INFO L471 AbstractCegarLoop]: Abstraction has 15297 states and 22528 transitions. [2024-11-13 13:35:12,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 67.0) internal successors, (469), 7 states have internal predecessors, (469), 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 13:35:12,193 INFO L276 IsEmpty]: Start isEmpty. Operand 15297 states and 22528 transitions. [2024-11-13 13:35:12,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 514 [2024-11-13 13:35:12,202 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:35:12,202 INFO L215 NwaCegarLoop]: trace histogram [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, 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] [2024-11-13 13:35:12,238 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-13 13:35:12,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:35:12,403 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:35:12,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:35:12,403 INFO L85 PathProgramCache]: Analyzing trace with hash 688811711, now seen corresponding path program 1 times [2024-11-13 13:35:12,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:35:12,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115238657] [2024-11-13 13:35:12,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:35:12,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:35:18,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:35:20,264 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 104 proven. 135 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:35:20,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:35:20,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115238657] [2024-11-13 13:35:20,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115238657] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:35:20,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2066385933] [2024-11-13 13:35:20,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:35:20,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:35:20,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:35:20,266 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:35:20,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-13 13:35:23,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:35:23,280 INFO L255 TraceCheckSpWp]: Trace formula consists of 3274 conjuncts, 51 conjuncts are in the unsatisfiable core [2024-11-13 13:35:23,290 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:35:24,598 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 115 proven. 124 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:35:24,599 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:35:28,447 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 115 proven. 124 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:35:28,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2066385933] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:35:28,447 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:35:28,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 11] total 25 [2024-11-13 13:35:28,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161019286] [2024-11-13 13:35:28,447 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:35:28,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-13 13:35:28,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:35:28,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-13 13:35:28,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=525, Unknown=0, NotChecked=0, Total=600 [2024-11-13 13:35:28,450 INFO L87 Difference]: Start difference. First operand 15297 states and 22528 transitions. Second operand has 25 states, 25 states have (on average 58.4) internal successors, (1460), 25 states have internal predecessors, (1460), 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 13:35:32,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:35:32,093 INFO L93 Difference]: Finished difference Result 33813 states and 49988 transitions. [2024-11-13 13:35:32,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2024-11-13 13:35:32,094 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 58.4) internal successors, (1460), 25 states have internal predecessors, (1460), 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 13:35:32,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:35:32,109 INFO L225 Difference]: With dead ends: 33813 [2024-11-13 13:35:32,109 INFO L226 Difference]: Without dead ends: 22371 [2024-11-13 13:35:32,117 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1099 GetRequests, 1016 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1933 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1246, Invalid=5894, Unknown=0, NotChecked=0, Total=7140 [2024-11-13 13:35:32,118 INFO L432 NwaCegarLoop]: 1075 mSDtfsCounter, 21472 mSDsluCounter, 10266 mSDsCounter, 0 mSdLazyCounter, 2245 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21472 SdHoareTripleChecker+Valid, 11341 SdHoareTripleChecker+Invalid, 2264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 2245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-13 13:35:32,118 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21472 Valid, 11341 Invalid, 2264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 2245 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-13 13:35:32,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22371 states. [2024-11-13 13:35:32,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22371 to 17881. [2024-11-13 13:35:32,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17881 states, 17880 states have (on average 1.4733780760626398) internal successors, (26344), 17880 states have internal predecessors, (26344), 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 13:35:32,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17881 states to 17881 states and 26344 transitions. [2024-11-13 13:35:32,281 INFO L78 Accepts]: Start accepts. Automaton has 17881 states and 26344 transitions. Word has length 513 [2024-11-13 13:35:32,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:35:32,282 INFO L471 AbstractCegarLoop]: Abstraction has 17881 states and 26344 transitions. [2024-11-13 13:35:32,282 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 58.4) internal successors, (1460), 25 states have internal predecessors, (1460), 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 13:35:32,282 INFO L276 IsEmpty]: Start isEmpty. Operand 17881 states and 26344 transitions. [2024-11-13 13:35:32,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 515 [2024-11-13 13:35:32,294 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:35:32,294 INFO L215 NwaCegarLoop]: trace histogram [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, 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] [2024-11-13 13:35:32,330 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-13 13:35:32,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2024-11-13 13:35:32,495 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:35:32,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:35:32,495 INFO L85 PathProgramCache]: Analyzing trace with hash 895085685, now seen corresponding path program 1 times [2024-11-13 13:35:32,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:35:32,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768376080] [2024-11-13 13:35:32,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:35:32,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:35:39,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:35:40,588 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 104 proven. 135 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:35:40,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:35:40,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768376080] [2024-11-13 13:35:40,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768376080] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:35:40,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1847843638] [2024-11-13 13:35:40,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:35:40,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:35:40,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:35:40,591 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:35:40,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-13 13:35:43,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:35:43,076 INFO L255 TraceCheckSpWp]: Trace formula consists of 3279 conjuncts, 138 conjuncts are in the unsatisfiable core [2024-11-13 13:35:43,090 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:35:45,718 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 211 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:35:45,718 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:35:51,914 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 198 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:35:51,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1847843638] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:35:51,914 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:35:51,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 24, 28] total 57 [2024-11-13 13:35:51,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283829681] [2024-11-13 13:35:51,915 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:35:51,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2024-11-13 13:35:51,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:35:51,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2024-11-13 13:35:51,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=242, Invalid=2950, Unknown=0, NotChecked=0, Total=3192 [2024-11-13 13:35:51,918 INFO L87 Difference]: Start difference. First operand 17881 states and 26344 transitions. Second operand has 57 states, 57 states have (on average 25.719298245614034) internal successors, (1466), 57 states have internal predecessors, (1466), 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 13:36:03,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:36:03,837 INFO L93 Difference]: Finished difference Result 58302 states and 86192 transitions. [2024-11-13 13:36:03,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2024-11-13 13:36:03,838 INFO L78 Accepts]: Start accepts. Automaton has has 57 states, 57 states have (on average 25.719298245614034) internal successors, (1466), 57 states have internal predecessors, (1466), 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 514 [2024-11-13 13:36:03,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:36:03,865 INFO L225 Difference]: With dead ends: 58302 [2024-11-13 13:36:03,865 INFO L226 Difference]: Without dead ends: 43105 [2024-11-13 13:36:03,876 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1112 GetRequests, 980 SyntacticMatches, 1 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4607 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=1088, Invalid=16468, Unknown=0, NotChecked=0, Total=17556 [2024-11-13 13:36:03,877 INFO L432 NwaCegarLoop]: 2238 mSDtfsCounter, 5246 mSDsluCounter, 85601 mSDsCounter, 0 mSdLazyCounter, 13455 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5246 SdHoareTripleChecker+Valid, 87839 SdHoareTripleChecker+Invalid, 13479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 13455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2024-11-13 13:36:03,877 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5246 Valid, 87839 Invalid, 13479 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [24 Valid, 13455 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2024-11-13 13:36:03,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43105 states. [2024-11-13 13:36:04,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43105 to 33441. [2024-11-13 13:36:04,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33441 states, 33440 states have (on average 1.4763456937799042) internal successors, (49369), 33440 states have internal predecessors, (49369), 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 13:36:04,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33441 states to 33441 states and 49369 transitions. [2024-11-13 13:36:04,213 INFO L78 Accepts]: Start accepts. Automaton has 33441 states and 49369 transitions. Word has length 514 [2024-11-13 13:36:04,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:36:04,213 INFO L471 AbstractCegarLoop]: Abstraction has 33441 states and 49369 transitions. [2024-11-13 13:36:04,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 57 states have (on average 25.719298245614034) internal successors, (1466), 57 states have internal predecessors, (1466), 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 13:36:04,213 INFO L276 IsEmpty]: Start isEmpty. Operand 33441 states and 49369 transitions. [2024-11-13 13:36:04,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 516 [2024-11-13 13:36:04,225 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:36:04,225 INFO L215 NwaCegarLoop]: trace histogram [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, 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] [2024-11-13 13:36:04,253 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-13 13:36:04,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:36:04,426 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:36:04,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:36:04,426 INFO L85 PathProgramCache]: Analyzing trace with hash 1733363286, now seen corresponding path program 1 times [2024-11-13 13:36:04,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:36:04,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208515628] [2024-11-13 13:36:04,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:36:04,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:36:10,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:36:12,229 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 141 proven. 99 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:36:12,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:36:12,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208515628] [2024-11-13 13:36:12,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208515628] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:36:12,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [296531619] [2024-11-13 13:36:12,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:36:12,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:36:12,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:36:12,232 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:36:12,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-13 13:36:15,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:36:15,142 INFO L255 TraceCheckSpWp]: Trace formula consists of 3280 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-11-13 13:36:15,153 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:36:15,866 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 85 proven. 155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:36:15,867 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:36:17,526 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 85 proven. 155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:36:17,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [296531619] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:36:17,526 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:36:17,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 12, 13] total 26 [2024-11-13 13:36:17,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831814011] [2024-11-13 13:36:17,526 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:36:17,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-13 13:36:17,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:36:17,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-13 13:36:17,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=553, Unknown=0, NotChecked=0, Total=650 [2024-11-13 13:36:17,528 INFO L87 Difference]: Start difference. First operand 33441 states and 49369 transitions. Second operand has 26 states, 26 states have (on average 37.57692307692308) internal successors, (977), 26 states have internal predecessors, (977), 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 13:36:19,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:36:19,780 INFO L93 Difference]: Finished difference Result 67633 states and 99993 transitions. [2024-11-13 13:36:19,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2024-11-13 13:36:19,781 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 37.57692307692308) internal successors, (977), 26 states have internal predecessors, (977), 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 515 [2024-11-13 13:36:19,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:36:19,813 INFO L225 Difference]: With dead ends: 67633 [2024-11-13 13:36:19,813 INFO L226 Difference]: Without dead ends: 41711 [2024-11-13 13:36:19,831 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1073 GetRequests, 1012 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 818 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=610, Invalid=3296, Unknown=0, NotChecked=0, Total=3906 [2024-11-13 13:36:19,832 INFO L432 NwaCegarLoop]: 1492 mSDtfsCounter, 3482 mSDsluCounter, 17171 mSDsCounter, 0 mSdLazyCounter, 1064 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3482 SdHoareTripleChecker+Valid, 18663 SdHoareTripleChecker+Invalid, 1084 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1064 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-13 13:36:19,832 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3482 Valid, 18663 Invalid, 1084 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1064 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-13 13:36:19,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41711 states. [2024-11-13 13:36:20,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41711 to 37833. [2024-11-13 13:36:20,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37833 states, 37832 states have (on average 1.4759198562063862) internal successors, (55837), 37832 states have internal predecessors, (55837), 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 13:36:20,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37833 states to 37833 states and 55837 transitions. [2024-11-13 13:36:20,214 INFO L78 Accepts]: Start accepts. Automaton has 37833 states and 55837 transitions. Word has length 515 [2024-11-13 13:36:20,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:36:20,215 INFO L471 AbstractCegarLoop]: Abstraction has 37833 states and 55837 transitions. [2024-11-13 13:36:20,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 37.57692307692308) internal successors, (977), 26 states have internal predecessors, (977), 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 13:36:20,215 INFO L276 IsEmpty]: Start isEmpty. Operand 37833 states and 55837 transitions. [2024-11-13 13:36:20,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 516 [2024-11-13 13:36:20,229 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:36:20,229 INFO L215 NwaCegarLoop]: trace histogram [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, 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] [2024-11-13 13:36:20,258 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-13 13:36:20,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:36:20,430 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:36:20,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:36:20,431 INFO L85 PathProgramCache]: Analyzing trace with hash 450753566, now seen corresponding path program 1 times [2024-11-13 13:36:20,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:36:20,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815100548] [2024-11-13 13:36:20,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:36:20,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:36:28,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:36:30,957 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 141 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:36:30,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:36:30,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815100548] [2024-11-13 13:36:30,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815100548] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:36:30,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1759208573] [2024-11-13 13:36:30,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:36:30,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:36:30,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:36:30,960 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:36:30,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-13 13:36:35,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:36:35,151 INFO L255 TraceCheckSpWp]: Trace formula consists of 3280 conjuncts, 175 conjuncts are in the unsatisfiable core [2024-11-13 13:36:35,164 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:36:44,125 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 76 proven. 163 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:36:44,125 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:36:54,993 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 7 proven. 232 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:36:54,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1759208573] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:36:54,993 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:36:54,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 23, 29] total 57 [2024-11-13 13:36:54,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783683769] [2024-11-13 13:36:54,993 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:36:54,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2024-11-13 13:36:54,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:36:54,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2024-11-13 13:36:54,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=2916, Unknown=0, NotChecked=0, Total=3192 [2024-11-13 13:36:54,995 INFO L87 Difference]: Start difference. First operand 37833 states and 55837 transitions. Second operand has 57 states, 57 states have (on average 25.736842105263158) internal successors, (1467), 57 states have internal predecessors, (1467), 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 13:37:10,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:37:10,438 INFO L93 Difference]: Finished difference Result 97744 states and 144317 transitions. [2024-11-13 13:37:10,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2024-11-13 13:37:10,439 INFO L78 Accepts]: Start accepts. Automaton has has 57 states, 57 states have (on average 25.736842105263158) internal successors, (1467), 57 states have internal predecessors, (1467), 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 515 [2024-11-13 13:37:10,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:37:10,482 INFO L225 Difference]: With dead ends: 97744 [2024-11-13 13:37:10,482 INFO L226 Difference]: Without dead ends: 60122 [2024-11-13 13:37:10,502 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1116 GetRequests, 984 SyntacticMatches, 0 SemanticMatches, 132 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4918 ImplicationChecksByTransitivity, 9.7s TimeCoverageRelationStatistics Valid=1659, Invalid=16163, Unknown=0, NotChecked=0, Total=17822 [2024-11-13 13:37:10,503 INFO L432 NwaCegarLoop]: 1197 mSDtfsCounter, 8411 mSDsluCounter, 41926 mSDsCounter, 0 mSdLazyCounter, 9971 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8411 SdHoareTripleChecker+Valid, 43123 SdHoareTripleChecker+Invalid, 10004 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 9971 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2024-11-13 13:37:10,503 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8411 Valid, 43123 Invalid, 10004 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [33 Valid, 9971 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2024-11-13 13:37:10,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60122 states. [2024-11-13 13:37:10,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60122 to 42261. [2024-11-13 13:37:10,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42261 states, 42260 states have (on average 1.4741599621391386) internal successors, (62298), 42260 states have internal predecessors, (62298), 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 13:37:10,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42261 states to 42261 states and 62298 transitions. [2024-11-13 13:37:10,976 INFO L78 Accepts]: Start accepts. Automaton has 42261 states and 62298 transitions. Word has length 515 [2024-11-13 13:37:10,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:37:10,977 INFO L471 AbstractCegarLoop]: Abstraction has 42261 states and 62298 transitions. [2024-11-13 13:37:10,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 57 states have (on average 25.736842105263158) internal successors, (1467), 57 states have internal predecessors, (1467), 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 13:37:10,977 INFO L276 IsEmpty]: Start isEmpty. Operand 42261 states and 62298 transitions. [2024-11-13 13:37:10,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 518 [2024-11-13 13:37:10,994 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:37:10,994 INFO L215 NwaCegarLoop]: trace histogram [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, 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] [2024-11-13 13:37:11,023 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-13 13:37:11,194 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2024-11-13 13:37:11,195 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:37:11,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:37:11,195 INFO L85 PathProgramCache]: Analyzing trace with hash -833266479, now seen corresponding path program 1 times [2024-11-13 13:37:11,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:37:11,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980988096] [2024-11-13 13:37:11,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:37:11,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:37:20,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:37:23,590 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 233 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:37:23,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:37:23,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980988096] [2024-11-13 13:37:23,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980988096] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:37:23,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1358424254] [2024-11-13 13:37:23,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:37:23,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:37:23,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:37:23,592 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:37:23,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-13 13:37:26,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:37:26,993 INFO L255 TraceCheckSpWp]: Trace formula consists of 3284 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-13 13:37:27,000 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:37:27,309 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 190 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-11-13 13:37:27,309 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:37:27,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1358424254] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:37:27,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:37:27,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2024-11-13 13:37:27,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85006362] [2024-11-13 13:37:27,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:37:27,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 13:37:27,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:37:27,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 13:37:27,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-13 13:37:27,311 INFO L87 Difference]: Start difference. First operand 42261 states and 62298 transitions. Second operand has 7 states, 7 states have (on average 67.71428571428571) internal successors, (474), 7 states have internal predecessors, (474), 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 13:37:27,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:37:27,606 INFO L93 Difference]: Finished difference Result 87185 states and 128737 transitions. [2024-11-13 13:37:27,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 13:37:27,607 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 67.71428571428571) internal successors, (474), 7 states have internal predecessors, (474), 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 517 [2024-11-13 13:37:27,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:37:27,643 INFO L225 Difference]: With dead ends: 87185 [2024-11-13 13:37:27,643 INFO L226 Difference]: Without dead ends: 51009 [2024-11-13 13:37:27,662 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 524 GetRequests, 513 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-11-13 13:37:27,663 INFO L432 NwaCegarLoop]: 1391 mSDtfsCounter, 720 mSDsluCounter, 4173 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 720 SdHoareTripleChecker+Valid, 5564 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:37:27,663 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [720 Valid, 5564 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:37:27,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51009 states. [2024-11-13 13:37:27,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51009 to 42873. [2024-11-13 13:37:28,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42873 states, 42872 states have (on average 1.4715898488523977) internal successors, (63090), 42872 states have internal predecessors, (63090), 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 13:37:28,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42873 states to 42873 states and 63090 transitions. [2024-11-13 13:37:28,061 INFO L78 Accepts]: Start accepts. Automaton has 42873 states and 63090 transitions. Word has length 517 [2024-11-13 13:37:28,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:37:28,061 INFO L471 AbstractCegarLoop]: Abstraction has 42873 states and 63090 transitions. [2024-11-13 13:37:28,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 67.71428571428571) internal successors, (474), 7 states have internal predecessors, (474), 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 13:37:28,062 INFO L276 IsEmpty]: Start isEmpty. Operand 42873 states and 63090 transitions. [2024-11-13 13:37:28,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 519 [2024-11-13 13:37:28,077 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:37:28,078 INFO L215 NwaCegarLoop]: trace histogram [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, 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 13:37:28,105 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-11-13 13:37:28,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2024-11-13 13:37:28,278 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:37:28,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:37:28,279 INFO L85 PathProgramCache]: Analyzing trace with hash 869675732, now seen corresponding path program 1 times [2024-11-13 13:37:28,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:37:28,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127560983] [2024-11-13 13:37:28,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:37:28,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:37:35,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:37:37,760 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 232 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:37:37,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:37:37,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127560983] [2024-11-13 13:37:37,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127560983] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:37:37,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [639862948] [2024-11-13 13:37:37,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:37:37,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:37:37,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:37:37,762 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:37:37,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-13 13:37:41,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:37:41,154 INFO L255 TraceCheckSpWp]: Trace formula consists of 3287 conjuncts, 134 conjuncts are in the unsatisfiable core [2024-11-13 13:37:41,165 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:37:45,687 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 41 proven. 201 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:37:45,687 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:37:54,560 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 35 proven. 207 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:37:54,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [639862948] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:37:54,560 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:37:54,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 25, 25] total 54 [2024-11-13 13:37:54,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207661688] [2024-11-13 13:37:54,561 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:37:54,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2024-11-13 13:37:54,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:37:54,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2024-11-13 13:37:54,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=347, Invalid=2515, Unknown=0, NotChecked=0, Total=2862 [2024-11-13 13:37:54,564 INFO L87 Difference]: Start difference. First operand 42873 states and 63090 transitions. Second operand has 54 states, 54 states have (on average 27.98148148148148) internal successors, (1511), 54 states have internal predecessors, (1511), 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 13:38:02,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:38:02,137 INFO L93 Difference]: Finished difference Result 160014 states and 236018 transitions. [2024-11-13 13:38:02,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2024-11-13 13:38:02,138 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 54 states have (on average 27.98148148148148) internal successors, (1511), 54 states have internal predecessors, (1511), 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 518 [2024-11-13 13:38:02,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:38:02,223 INFO L225 Difference]: With dead ends: 160014 [2024-11-13 13:38:02,224 INFO L226 Difference]: Without dead ends: 118228 [2024-11-13 13:38:02,260 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1105 GetRequests, 991 SyntacticMatches, 0 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3106 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=1820, Invalid=11520, Unknown=0, NotChecked=0, Total=13340 [2024-11-13 13:38:02,260 INFO L432 NwaCegarLoop]: 1139 mSDtfsCounter, 18061 mSDsluCounter, 35217 mSDsCounter, 0 mSdLazyCounter, 6249 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18061 SdHoareTripleChecker+Valid, 36356 SdHoareTripleChecker+Invalid, 6288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 6249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:38:02,261 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18061 Valid, 36356 Invalid, 6288 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [39 Valid, 6249 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-11-13 13:38:02,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118228 states. [2024-11-13 13:38:03,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118228 to 65461. [2024-11-13 13:38:03,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65461 states, 65460 states have (on average 1.4735105407882676) internal successors, (96456), 65460 states have internal predecessors, (96456), 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 13:38:03,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65461 states to 65461 states and 96456 transitions. [2024-11-13 13:38:03,420 INFO L78 Accepts]: Start accepts. Automaton has 65461 states and 96456 transitions. Word has length 518 [2024-11-13 13:38:03,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:38:03,420 INFO L471 AbstractCegarLoop]: Abstraction has 65461 states and 96456 transitions. [2024-11-13 13:38:03,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 54 states have (on average 27.98148148148148) internal successors, (1511), 54 states have internal predecessors, (1511), 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 13:38:03,421 INFO L276 IsEmpty]: Start isEmpty. Operand 65461 states and 96456 transitions. [2024-11-13 13:38:03,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 520 [2024-11-13 13:38:03,444 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:38:03,444 INFO L215 NwaCegarLoop]: trace histogram [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, 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] [2024-11-13 13:38:03,471 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-13 13:38:03,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:38:03,645 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:38:03,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:38:03,645 INFO L85 PathProgramCache]: Analyzing trace with hash 1019547693, now seen corresponding path program 1 times [2024-11-13 13:38:03,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:38:03,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228192310] [2024-11-13 13:38:03,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:38:03,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:38:04,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:38:06,160 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 184 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:38:06,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:38:06,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228192310] [2024-11-13 13:38:06,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228192310] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:38:06,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [324357597] [2024-11-13 13:38:06,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:38:06,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:38:06,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:38:06,163 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:38:06,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-13 13:38:09,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:38:09,031 INFO L255 TraceCheckSpWp]: Trace formula consists of 3290 conjuncts, 81 conjuncts are in the unsatisfiable core [2024-11-13 13:38:09,039 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:38:10,708 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 89 proven. 156 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:38:10,708 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:38:11,223 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 118 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2024-11-13 13:38:11,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [324357597] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 13:38:11,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-13 13:38:11,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9, 14] total 28 [2024-11-13 13:38:11,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644987394] [2024-11-13 13:38:11,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:38:11,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 13:38:11,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:38:11,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 13:38:11,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=657, Unknown=0, NotChecked=0, Total=756 [2024-11-13 13:38:11,226 INFO L87 Difference]: Start difference. First operand 65461 states and 96456 transitions. Second operand has 9 states, 9 states have (on average 44.666666666666664) internal successors, (402), 9 states have internal predecessors, (402), 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 13:38:11,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:38:11,976 INFO L93 Difference]: Finished difference Result 128407 states and 189516 transitions. [2024-11-13 13:38:11,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-13 13:38:11,977 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 44.666666666666664) internal successors, (402), 9 states have internal predecessors, (402), 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 519 [2024-11-13 13:38:11,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:38:12,031 INFO L225 Difference]: With dead ends: 128407 [2024-11-13 13:38:12,031 INFO L226 Difference]: Without dead ends: 80296 [2024-11-13 13:38:12,048 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1053 GetRequests, 1023 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 310 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=134, Invalid=858, Unknown=0, NotChecked=0, Total=992 [2024-11-13 13:38:12,048 INFO L432 NwaCegarLoop]: 891 mSDtfsCounter, 1264 mSDsluCounter, 4724 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1264 SdHoareTripleChecker+Valid, 5615 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 13:38:12,049 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1264 Valid, 5615 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 13:38:12,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80296 states. [2024-11-13 13:38:12,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80296 to 68083. [2024-11-13 13:38:12,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68083 states, 68082 states have (on average 1.4751916806204284) internal successors, (100434), 68082 states have internal predecessors, (100434), 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 13:38:12,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68083 states to 68083 states and 100434 transitions. [2024-11-13 13:38:12,997 INFO L78 Accepts]: Start accepts. Automaton has 68083 states and 100434 transitions. Word has length 519 [2024-11-13 13:38:12,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:38:12,998 INFO L471 AbstractCegarLoop]: Abstraction has 68083 states and 100434 transitions. [2024-11-13 13:38:12,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 44.666666666666664) internal successors, (402), 9 states have internal predecessors, (402), 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 13:38:12,998 INFO L276 IsEmpty]: Start isEmpty. Operand 68083 states and 100434 transitions. [2024-11-13 13:38:13,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 520 [2024-11-13 13:38:13,038 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:38:13,038 INFO L215 NwaCegarLoop]: trace histogram [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, 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] [2024-11-13 13:38:13,066 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-13 13:38:13,238 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:38:13,239 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:38:13,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:38:13,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1892791313, now seen corresponding path program 1 times [2024-11-13 13:38:13,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:38:13,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911586733] [2024-11-13 13:38:13,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:38:13,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:38:14,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:38:15,800 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 185 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:38:15,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:38:15,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911586733] [2024-11-13 13:38:15,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911586733] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:38:15,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [499379986] [2024-11-13 13:38:15,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:38:15,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:38:15,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:38:15,803 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:38:15,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-13 13:38:18,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:38:18,859 INFO L255 TraceCheckSpWp]: Trace formula consists of 3288 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-11-13 13:38:18,867 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:38:19,385 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 191 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-13 13:38:19,385 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:38:19,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [499379986] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:38:19,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:38:19,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2024-11-13 13:38:19,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169138399] [2024-11-13 13:38:19,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:38:19,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 13:38:19,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:38:19,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 13:38:19,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2024-11-13 13:38:19,387 INFO L87 Difference]: Start difference. First operand 68083 states and 100434 transitions. Second operand has 7 states, 7 states have (on average 67.14285714285714) internal successors, (470), 7 states have internal predecessors, (470), 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 13:38:19,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:38:19,820 INFO L93 Difference]: Finished difference Result 127324 states and 188106 transitions. [2024-11-13 13:38:19,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 13:38:19,821 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 67.14285714285714) internal successors, (470), 7 states have internal predecessors, (470), 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 519 [2024-11-13 13:38:19,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:38:19,891 INFO L225 Difference]: With dead ends: 127324 [2024-11-13 13:38:19,891 INFO L226 Difference]: Without dead ends: 75151 [2024-11-13 13:38:19,929 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 531 GetRequests, 517 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2024-11-13 13:38:19,930 INFO L432 NwaCegarLoop]: 1131 mSDtfsCounter, 909 mSDsluCounter, 3757 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 909 SdHoareTripleChecker+Valid, 4888 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:38:19,930 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [909 Valid, 4888 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:38:19,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75151 states. [2024-11-13 13:38:20,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75151 to 71599. [2024-11-13 13:38:20,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71599 states, 71598 states have (on average 1.4733093103159307) internal successors, (105486), 71598 states have internal predecessors, (105486), 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 13:38:20,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71599 states to 71599 states and 105486 transitions. [2024-11-13 13:38:20,896 INFO L78 Accepts]: Start accepts. Automaton has 71599 states and 105486 transitions. Word has length 519 [2024-11-13 13:38:20,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:38:20,897 INFO L471 AbstractCegarLoop]: Abstraction has 71599 states and 105486 transitions. [2024-11-13 13:38:20,897 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 67.14285714285714) internal successors, (470), 7 states have internal predecessors, (470), 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 13:38:20,897 INFO L276 IsEmpty]: Start isEmpty. Operand 71599 states and 105486 transitions. [2024-11-13 13:38:20,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 521 [2024-11-13 13:38:20,920 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:38:20,920 INFO L215 NwaCegarLoop]: trace histogram [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, 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] [2024-11-13 13:38:20,947 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-13 13:38:21,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:38:21,121 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:38:21,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:38:21,121 INFO L85 PathProgramCache]: Analyzing trace with hash -648496289, now seen corresponding path program 1 times [2024-11-13 13:38:21,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:38:21,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435526403] [2024-11-13 13:38:21,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:38:21,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:38:21,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:38:24,123 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 186 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:38:24,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:38:24,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435526403] [2024-11-13 13:38:24,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435526403] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:38:24,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1671536386] [2024-11-13 13:38:24,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:38:24,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:38:24,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:38:24,125 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:38:24,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-13 13:38:27,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:38:27,740 INFO L255 TraceCheckSpWp]: Trace formula consists of 3291 conjuncts, 167 conjuncts are in the unsatisfiable core [2024-11-13 13:38:27,752 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:38:32,755 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 211 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:38:32,755 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:38:39,348 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 70 proven. 177 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:38:39,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1671536386] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:38:39,348 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:38:39,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 22, 22] total 49 [2024-11-13 13:38:39,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165055704] [2024-11-13 13:38:39,349 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:38:39,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2024-11-13 13:38:39,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:38:39,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2024-11-13 13:38:39,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=302, Invalid=2050, Unknown=0, NotChecked=0, Total=2352 [2024-11-13 13:38:39,352 INFO L87 Difference]: Start difference. First operand 71599 states and 105486 transitions. Second operand has 49 states, 49 states have (on average 27.448979591836736) internal successors, (1345), 49 states have internal predecessors, (1345), 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 13:38:56,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:38:56,062 INFO L93 Difference]: Finished difference Result 207866 states and 306162 transitions. [2024-11-13 13:38:56,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 131 states. [2024-11-13 13:38:56,063 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 27.448979591836736) internal successors, (1345), 49 states have internal predecessors, (1345), 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 520 [2024-11-13 13:38:56,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:38:56,169 INFO L225 Difference]: With dead ends: 207866 [2024-11-13 13:38:56,169 INFO L226 Difference]: Without dead ends: 148197 [2024-11-13 13:38:56,213 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1177 GetRequests, 1008 SyntacticMatches, 0 SemanticMatches, 169 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9813 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=3629, Invalid=25441, Unknown=0, NotChecked=0, Total=29070 [2024-11-13 13:38:56,213 INFO L432 NwaCegarLoop]: 2633 mSDtfsCounter, 18814 mSDsluCounter, 71965 mSDsCounter, 0 mSdLazyCounter, 11371 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18814 SdHoareTripleChecker+Valid, 74598 SdHoareTripleChecker+Invalid, 11403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 11371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2024-11-13 13:38:56,214 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18814 Valid, 74598 Invalid, 11403 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [32 Valid, 11371 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time] [2024-11-13 13:38:56,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148197 states. [2024-11-13 13:38:57,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148197 to 83885. [2024-11-13 13:38:57,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83885 states, 83884 states have (on average 1.472056649659053) internal successors, (123482), 83884 states have internal predecessors, (123482), 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 13:38:57,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83885 states to 83885 states and 123482 transitions. [2024-11-13 13:38:57,645 INFO L78 Accepts]: Start accepts. Automaton has 83885 states and 123482 transitions. Word has length 520 [2024-11-13 13:38:57,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:38:57,646 INFO L471 AbstractCegarLoop]: Abstraction has 83885 states and 123482 transitions. [2024-11-13 13:38:57,646 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 27.448979591836736) internal successors, (1345), 49 states have internal predecessors, (1345), 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 13:38:57,646 INFO L276 IsEmpty]: Start isEmpty. Operand 83885 states and 123482 transitions. [2024-11-13 13:38:57,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 522 [2024-11-13 13:38:57,676 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:38:57,676 INFO L215 NwaCegarLoop]: trace histogram [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, 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] [2024-11-13 13:38:57,703 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-13 13:38:57,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:38:57,877 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:38:57,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:38:57,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1122561998, now seen corresponding path program 1 times [2024-11-13 13:38:57,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:38:57,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130964840] [2024-11-13 13:38:57,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:38:57,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:39:03,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:39:05,068 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 127 proven. 119 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:39:05,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:39:05,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130964840] [2024-11-13 13:39:05,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130964840] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:39:05,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1240337533] [2024-11-13 13:39:05,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:39:05,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:39:05,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:39:05,070 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:39:05,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-13 13:39:08,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:39:08,579 INFO L255 TraceCheckSpWp]: Trace formula consists of 3296 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-11-13 13:39:08,588 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:39:09,316 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 69 proven. 177 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:39:09,316 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:39:11,266 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 69 proven. 177 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:39:11,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1240337533] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:39:11,267 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:39:11,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 12, 13] total 26 [2024-11-13 13:39:11,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215010242] [2024-11-13 13:39:11,267 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:39:11,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-13 13:39:11,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:39:11,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-13 13:39:11,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=553, Unknown=0, NotChecked=0, Total=650 [2024-11-13 13:39:11,269 INFO L87 Difference]: Start difference. First operand 83885 states and 123482 transitions. Second operand has 26 states, 26 states have (on average 38.80769230769231) internal successors, (1009), 26 states have internal predecessors, (1009), 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 13:39:13,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:39:13,088 INFO L93 Difference]: Finished difference Result 156840 states and 231096 transitions. [2024-11-13 13:39:13,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2024-11-13 13:39:13,089 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 38.80769230769231) internal successors, (1009), 26 states have internal predecessors, (1009), 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 521 [2024-11-13 13:39:13,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:39:13,156 INFO L225 Difference]: With dead ends: 156840 [2024-11-13 13:39:13,157 INFO L226 Difference]: Without dead ends: 94699 [2024-11-13 13:39:13,193 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1083 GetRequests, 1024 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 798 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=490, Invalid=3170, Unknown=0, NotChecked=0, Total=3660 [2024-11-13 13:39:13,194 INFO L432 NwaCegarLoop]: 1354 mSDtfsCounter, 3135 mSDsluCounter, 14794 mSDsCounter, 0 mSdLazyCounter, 853 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3135 SdHoareTripleChecker+Valid, 16148 SdHoareTripleChecker+Invalid, 879 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 853 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-13 13:39:13,194 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3135 Valid, 16148 Invalid, 879 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 853 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-13 13:39:13,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94699 states. [2024-11-13 13:39:13,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94699 to 91637. [2024-11-13 13:39:13,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91637 states, 91636 states have (on average 1.4706556375223712) internal successors, (134765), 91636 states have internal predecessors, (134765), 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 13:39:14,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91637 states to 91637 states and 134765 transitions. [2024-11-13 13:39:14,012 INFO L78 Accepts]: Start accepts. Automaton has 91637 states and 134765 transitions. Word has length 521 [2024-11-13 13:39:14,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:39:14,013 INFO L471 AbstractCegarLoop]: Abstraction has 91637 states and 134765 transitions. [2024-11-13 13:39:14,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 38.80769230769231) internal successors, (1009), 26 states have internal predecessors, (1009), 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 13:39:14,013 INFO L276 IsEmpty]: Start isEmpty. Operand 91637 states and 134765 transitions. [2024-11-13 13:39:14,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 522 [2024-11-13 13:39:14,048 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:39:14,048 INFO L215 NwaCegarLoop]: trace histogram [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, 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] [2024-11-13 13:39:14,078 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-13 13:39:14,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2024-11-13 13:39:14,249 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:39:14,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:39:14,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1906957873, now seen corresponding path program 1 times [2024-11-13 13:39:14,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:39:14,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541964614] [2024-11-13 13:39:14,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:39:14,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:39:21,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:39:23,989 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 167 proven. 79 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:39:23,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:39:23,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541964614] [2024-11-13 13:39:23,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541964614] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:39:23,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2064889194] [2024-11-13 13:39:23,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:39:23,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:39:23,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:39:23,992 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:39:23,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-13 13:39:27,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:39:28,008 INFO L255 TraceCheckSpWp]: Trace formula consists of 3294 conjuncts, 156 conjuncts are in the unsatisfiable core [2024-11-13 13:39:28,022 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:39:33,342 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 80 proven. 166 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:39:33,342 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:39:34,520 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-11-13 13:39:34,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2064889194] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 13:39:34,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-13 13:39:34,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [10, 22] total 39 [2024-11-13 13:39:34,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792039582] [2024-11-13 13:39:34,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:39:34,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 13:39:34,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:39:34,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 13:39:34,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1374, Unknown=0, NotChecked=0, Total=1482 [2024-11-13 13:39:34,523 INFO L87 Difference]: Start difference. First operand 91637 states and 134765 transitions. Second operand has 11 states, 11 states have (on average 38.72727272727273) internal successors, (426), 11 states have internal predecessors, (426), 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 13:39:35,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:39:35,936 INFO L93 Difference]: Finished difference Result 253227 states and 372526 transitions. [2024-11-13 13:39:35,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 13:39:35,937 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 38.72727272727273) internal successors, (426), 11 states have internal predecessors, (426), 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 521 [2024-11-13 13:39:35,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:39:36,124 INFO L225 Difference]: With dead ends: 253227 [2024-11-13 13:39:36,124 INFO L226 Difference]: Without dead ends: 215193 [2024-11-13 13:39:36,180 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1057 GetRequests, 1015 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 472 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=153, Invalid=1739, Unknown=0, NotChecked=0, Total=1892 [2024-11-13 13:39:36,181 INFO L432 NwaCegarLoop]: 1490 mSDtfsCounter, 2018 mSDsluCounter, 7419 mSDsCounter, 0 mSdLazyCounter, 987 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2018 SdHoareTripleChecker+Valid, 8909 SdHoareTripleChecker+Invalid, 989 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 987 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-13 13:39:36,181 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2018 Valid, 8909 Invalid, 989 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 987 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-13 13:39:36,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215193 states. [2024-11-13 13:39:38,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215193 to 206450. [2024-11-13 13:39:38,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206450 states, 206449 states have (on average 1.471094556040475) internal successors, (303706), 206449 states have internal predecessors, (303706), 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 13:39:38,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206450 states to 206450 states and 303706 transitions. [2024-11-13 13:39:38,888 INFO L78 Accepts]: Start accepts. Automaton has 206450 states and 303706 transitions. Word has length 521 [2024-11-13 13:39:38,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:39:38,888 INFO L471 AbstractCegarLoop]: Abstraction has 206450 states and 303706 transitions. [2024-11-13 13:39:38,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 38.72727272727273) internal successors, (426), 11 states have internal predecessors, (426), 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 13:39:38,888 INFO L276 IsEmpty]: Start isEmpty. Operand 206450 states and 303706 transitions. [2024-11-13 13:39:39,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 523 [2024-11-13 13:39:39,035 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:39:39,035 INFO L215 NwaCegarLoop]: trace histogram [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, 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] [2024-11-13 13:39:39,066 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-11-13 13:39:39,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2024-11-13 13:39:39,236 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:39:39,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:39:39,236 INFO L85 PathProgramCache]: Analyzing trace with hash 841561890, now seen corresponding path program 1 times [2024-11-13 13:39:39,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:39:39,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114363601] [2024-11-13 13:39:39,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:39:39,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:39:46,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:39:48,774 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 88 proven. 159 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:39:48,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:39:48,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114363601] [2024-11-13 13:39:48,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114363601] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:39:48,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1790849270] [2024-11-13 13:39:48,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:39:48,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:39:48,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:39:48,776 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:39:48,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7975eb89-1927-4a49-bb12-fadf7d77cfa9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-13 13:39:53,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:39:53,023 INFO L255 TraceCheckSpWp]: Trace formula consists of 3295 conjuncts, 283 conjuncts are in the unsatisfiable core [2024-11-13 13:39:53,046 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:39:59,541 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 158 proven. 89 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:39:59,541 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:40:04,349 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 214 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-13 13:40:04,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1790849270] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 13:40:04,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-13 13:40:04,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [12, 29] total 58 [2024-11-13 13:40:04,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288432189] [2024-11-13 13:40:04,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:40:04,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-13 13:40:04,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:40:04,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-13 13:40:04,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=395, Invalid=2911, Unknown=0, NotChecked=0, Total=3306 [2024-11-13 13:40:04,351 INFO L87 Difference]: Start difference. First operand 206450 states and 303706 transitions. Second operand has 21 states, 21 states have (on average 23.666666666666668) internal successors, (497), 21 states have internal predecessors, (497), 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 13:40:15,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:40:15,054 INFO L93 Difference]: Finished difference Result 890377 states and 1312227 transitions. [2024-11-13 13:40:15,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2024-11-13 13:40:15,054 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 23.666666666666668) internal successors, (497), 21 states have internal predecessors, (497), 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 522 [2024-11-13 13:40:15,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:40:16,010 INFO L225 Difference]: With dead ends: 890377 [2024-11-13 13:40:16,010 INFO L226 Difference]: Without dead ends: 804930 [2024-11-13 13:40:16,825 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1105 GetRequests, 1016 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2727 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=1012, Invalid=7178, Unknown=0, NotChecked=0, Total=8190 [2024-11-13 13:40:16,826 INFO L432 NwaCegarLoop]: 2342 mSDtfsCounter, 3362 mSDsluCounter, 27882 mSDsCounter, 0 mSdLazyCounter, 4361 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3362 SdHoareTripleChecker+Valid, 30224 SdHoareTripleChecker+Invalid, 4372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 4361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2024-11-13 13:40:16,826 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3362 Valid, 30224 Invalid, 4372 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 4361 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2024-11-13 13:40:17,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 804930 states.