./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 22565549446fb10d699e81ca4083722d91d5f2743033fe3de4e7c76b9089640a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:24:24,283 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:24:24,368 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 00:24:24,378 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:24:24,378 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:24:24,417 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:24:24,418 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:24:24,418 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:24:24,418 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:24:24,418 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:24:24,418 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:24:24,419 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:24:24,419 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:24:24,419 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:24:24,419 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:24:24,419 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:24:24,419 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:24:24,420 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:24:24,420 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 00:24:24,420 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:24:24,420 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:24:24,420 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:24:24,420 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:24:24,424 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:24:24,424 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:24:24,424 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:24:24,424 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:24:24,424 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:24:24,424 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:24:24,425 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:24:24,425 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:24:24,425 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:24:24,425 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:24:24,425 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:24:24,426 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:24:24,426 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:24:24,426 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:24:24,427 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:24:24,427 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:24:24,427 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:24:24,427 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:24:24,427 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:24:24,427 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 00:24:24,427 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 00:24:24,427 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:24:24,428 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:24:24,428 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:24:24,428 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:24:24,428 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_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22565549446fb10d699e81ca4083722d91d5f2743033fe3de4e7c76b9089640a [2024-11-24 00:24:24,737 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:24:24,751 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:24:24,753 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:24:24,756 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:24:24,757 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:24:24,758 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-24 00:24:27,753 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/data/58b13c5e1/47ff635fe2044aa6b1ef6c73220d62d9/FLAGc7dd95a25 [2024-11-24 00:24:28,123 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:24:28,127 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-24 00:24:28,155 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/data/58b13c5e1/47ff635fe2044aa6b1ef6c73220d62d9/FLAGc7dd95a25 [2024-11-24 00:24:28,179 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/data/58b13c5e1/47ff635fe2044aa6b1ef6c73220d62d9 [2024-11-24 00:24:28,182 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:24:28,185 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:24:28,186 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:24:28,187 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:24:28,193 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:24:28,194 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:24:28" (1/1) ... [2024-11-24 00:24:28,195 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c961d33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:24:28, skipping insertion in model container [2024-11-24 00:24:28,197 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:24:28" (1/1) ... [2024-11-24 00:24:28,247 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:24:28,577 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_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[7163,7176] [2024-11-24 00:24:28,664 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:24:28,692 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:24:28,770 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_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[7163,7176] [2024-11-24 00:24:28,818 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:24:28,838 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:24:28,838 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:24:28 WrapperNode [2024-11-24 00:24:28,839 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:24:28,840 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:24:28,840 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:24:28,840 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:24:28,848 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:24:28" (1/1) ... [2024-11-24 00:24:28,863 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:24:28" (1/1) ... [2024-11-24 00:24:28,923 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 644 [2024-11-24 00:24:28,926 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:24:28,926 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:24:28,926 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:24:28,926 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:24:28,942 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:24:28" (1/1) ... [2024-11-24 00:24:28,943 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:24:28" (1/1) ... [2024-11-24 00:24:28,950 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:24:28" (1/1) ... [2024-11-24 00:24:28,985 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]. [2024-11-24 00:24:28,985 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:24:28" (1/1) ... [2024-11-24 00:24:28,985 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:24:28" (1/1) ... [2024-11-24 00:24:29,008 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:24:28" (1/1) ... [2024-11-24 00:24:29,013 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:24:28" (1/1) ... [2024-11-24 00:24:29,020 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:24:28" (1/1) ... [2024-11-24 00:24:29,026 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:24:28" (1/1) ... [2024-11-24 00:24:29,032 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:24:28" (1/1) ... [2024-11-24 00:24:29,040 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:24:29,045 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:24:29,045 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:24:29,045 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:24:29,046 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:24:28" (1/1) ... [2024-11-24 00:24:29,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:24:29,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:24:29,110 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:24:29,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:24:29,147 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:24:29,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 00:24:29,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:24:29,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:24:29,288 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:24:29,290 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:24:30,127 INFO L? ?]: Removed 81 outVars from TransFormulas that were not future-live. [2024-11-24 00:24:30,127 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:24:30,149 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:24:30,149 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-24 00:24:30,149 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:24:30 BoogieIcfgContainer [2024-11-24 00:24:30,150 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:24:30,154 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:24:30,154 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:24:30,161 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:24:30,162 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:24:28" (1/3) ... [2024-11-24 00:24:30,163 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4df955b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:24:30, skipping insertion in model container [2024-11-24 00:24:30,163 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:24:28" (2/3) ... [2024-11-24 00:24:30,165 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4df955b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:24:30, skipping insertion in model container [2024-11-24 00:24:30,166 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:24:30" (3/3) ... [2024-11-24 00:24:30,169 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-24 00:24:30,189 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:24:30,193 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c that has 1 procedures, 161 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-24 00:24:30,291 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:24:30,306 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;@ae4011, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:24:30,306 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 00:24:30,311 INFO L276 IsEmpty]: Start isEmpty. Operand has 161 states, 159 states have (on average 1.7044025157232705) internal successors, (271), 160 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) [2024-11-24 00:24:30,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-24 00:24:30,320 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:24:30,320 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:24:30,321 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:24:30,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:24:30,327 INFO L85 PathProgramCache]: Analyzing trace with hash 293786216, now seen corresponding path program 1 times [2024-11-24 00:24:30,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:24:30,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391249538] [2024-11-24 00:24:30,337 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:24:30,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:24:30,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:24:31,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:24:31,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:24:31,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391249538] [2024-11-24 00:24:31,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391249538] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:24:31,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:24:31,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:24:31,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464474157] [2024-11-24 00:24:31,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:24:31,152 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:24:31,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:24:31,173 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:24:31,173 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:24:31,176 INFO L87 Difference]: Start difference. First operand has 161 states, 159 states have (on average 1.7044025157232705) internal successors, (271), 160 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) Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:31,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:24:31,437 INFO L93 Difference]: Finished difference Result 516 states and 834 transitions. [2024-11-24 00:24:31,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:24:31,440 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 0 states have call successors, (0), 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 49 [2024-11-24 00:24:31,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:24:31,463 INFO L225 Difference]: With dead ends: 516 [2024-11-24 00:24:31,466 INFO L226 Difference]: Without dead ends: 437 [2024-11-24 00:24:31,475 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:24:31,481 INFO L435 NwaCegarLoop]: 376 mSDtfsCounter, 908 mSDsluCounter, 910 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 908 SdHoareTripleChecker+Valid, 1286 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:24:31,483 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [908 Valid, 1286 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:24:31,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2024-11-24 00:24:31,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 255. [2024-11-24 00:24:31,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 254 states have (on average 1.515748031496063) internal successors, (385), 254 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:31,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 385 transitions. [2024-11-24 00:24:31,563 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 385 transitions. Word has length 49 [2024-11-24 00:24:31,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:24:31,563 INFO L471 AbstractCegarLoop]: Abstraction has 255 states and 385 transitions. [2024-11-24 00:24:31,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:31,564 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 385 transitions. [2024-11-24 00:24:31,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-24 00:24:31,566 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:24:31,566 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:24:31,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-24 00:24:31,568 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:24:31,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:24:31,571 INFO L85 PathProgramCache]: Analyzing trace with hash -1697275801, now seen corresponding path program 1 times [2024-11-24 00:24:31,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:24:31,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528747063] [2024-11-24 00:24:31,572 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:24:31,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:24:31,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:24:31,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:24:31,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:24:31,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528747063] [2024-11-24 00:24:31,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528747063] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:24:31,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:24:31,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:24:31,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692944417] [2024-11-24 00:24:31,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:24:31,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:24:31,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:24:31,768 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:24:31,768 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:24:31,768 INFO L87 Difference]: Start difference. First operand 255 states and 385 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:31,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:24:31,824 INFO L93 Difference]: Finished difference Result 627 states and 965 transitions. [2024-11-24 00:24:31,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:24:31,825 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 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 52 [2024-11-24 00:24:31,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:24:31,829 INFO L225 Difference]: With dead ends: 627 [2024-11-24 00:24:31,829 INFO L226 Difference]: Without dead ends: 429 [2024-11-24 00:24:31,831 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:24:31,832 INFO L435 NwaCegarLoop]: 227 mSDtfsCounter, 160 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:24:31,832 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 422 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:24:31,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2024-11-24 00:24:31,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 427. [2024-11-24 00:24:31,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 426 states have (on average 1.5046948356807512) internal successors, (641), 426 states have internal predecessors, (641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:31,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 641 transitions. [2024-11-24 00:24:31,877 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 641 transitions. Word has length 52 [2024-11-24 00:24:31,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:24:31,879 INFO L471 AbstractCegarLoop]: Abstraction has 427 states and 641 transitions. [2024-11-24 00:24:31,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:31,880 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 641 transitions. [2024-11-24 00:24:31,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-24 00:24:31,881 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:24:31,882 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:24:31,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 00:24:31,882 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:24:31,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:24:31,883 INFO L85 PathProgramCache]: Analyzing trace with hash -195371450, now seen corresponding path program 1 times [2024-11-24 00:24:31,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:24:31,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117910874] [2024-11-24 00:24:31,883 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:24:31,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:24:31,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:24:32,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:24:32,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:24:32,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117910874] [2024-11-24 00:24:32,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117910874] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:24:32,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:24:32,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:24:32,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703513175] [2024-11-24 00:24:32,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:24:32,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:24:32,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:24:32,052 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:24:32,052 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:24:32,052 INFO L87 Difference]: Start difference. First operand 427 states and 641 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:32,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:24:32,100 INFO L93 Difference]: Finished difference Result 1077 states and 1638 transitions. [2024-11-24 00:24:32,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:24:32,104 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 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 52 [2024-11-24 00:24:32,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:24:32,107 INFO L225 Difference]: With dead ends: 1077 [2024-11-24 00:24:32,109 INFO L226 Difference]: Without dead ends: 749 [2024-11-24 00:24:32,111 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:24:32,112 INFO L435 NwaCegarLoop]: 229 mSDtfsCounter, 159 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:24:32,113 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 436 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:24:32,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 749 states. [2024-11-24 00:24:32,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 749 to 747. [2024-11-24 00:24:32,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 747 states, 746 states have (on average 1.4946380697050938) internal successors, (1115), 746 states have internal predecessors, (1115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:32,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 747 states to 747 states and 1115 transitions. [2024-11-24 00:24:32,156 INFO L78 Accepts]: Start accepts. Automaton has 747 states and 1115 transitions. Word has length 52 [2024-11-24 00:24:32,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:24:32,157 INFO L471 AbstractCegarLoop]: Abstraction has 747 states and 1115 transitions. [2024-11-24 00:24:32,157 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:32,157 INFO L276 IsEmpty]: Start isEmpty. Operand 747 states and 1115 transitions. [2024-11-24 00:24:32,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-24 00:24:32,159 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:24:32,159 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:24:32,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 00:24:32,160 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:24:32,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:24:32,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1046972601, now seen corresponding path program 1 times [2024-11-24 00:24:32,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:24:32,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384649977] [2024-11-24 00:24:32,161 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:24:32,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:24:32,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:24:32,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:24:32,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:24:32,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384649977] [2024-11-24 00:24:32,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384649977] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:24:32,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:24:32,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:24:32,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163706399] [2024-11-24 00:24:32,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:24:32,279 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:24:32,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:24:32,279 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:24:32,279 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:24:32,280 INFO L87 Difference]: Start difference. First operand 747 states and 1115 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:32,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:24:32,337 INFO L93 Difference]: Finished difference Result 1857 states and 2792 transitions. [2024-11-24 00:24:32,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:24:32,338 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 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 52 [2024-11-24 00:24:32,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:24:32,345 INFO L225 Difference]: With dead ends: 1857 [2024-11-24 00:24:32,345 INFO L226 Difference]: Without dead ends: 1293 [2024-11-24 00:24:32,346 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:24:32,347 INFO L435 NwaCegarLoop]: 229 mSDtfsCounter, 146 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:24:32,348 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 436 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:24:32,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1293 states. [2024-11-24 00:24:32,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1293 to 1291. [2024-11-24 00:24:32,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1291 states, 1290 states have (on average 1.4751937984496124) internal successors, (1903), 1290 states have internal predecessors, (1903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:32,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1291 states to 1291 states and 1903 transitions. [2024-11-24 00:24:32,405 INFO L78 Accepts]: Start accepts. Automaton has 1291 states and 1903 transitions. Word has length 52 [2024-11-24 00:24:32,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:24:32,405 INFO L471 AbstractCegarLoop]: Abstraction has 1291 states and 1903 transitions. [2024-11-24 00:24:32,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:32,406 INFO L276 IsEmpty]: Start isEmpty. Operand 1291 states and 1903 transitions. [2024-11-24 00:24:32,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-24 00:24:32,411 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:24:32,412 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:24:32,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 00:24:32,412 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:24:32,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:24:32,413 INFO L85 PathProgramCache]: Analyzing trace with hash 1633425885, now seen corresponding path program 1 times [2024-11-24 00:24:32,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:24:32,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132181868] [2024-11-24 00:24:32,413 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:24:32,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:24:32,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:24:32,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:24:32,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:24:32,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132181868] [2024-11-24 00:24:32,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132181868] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:24:32,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:24:32,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:24:32,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881840281] [2024-11-24 00:24:32,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:24:32,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:24:32,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:24:32,703 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:24:32,703 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:24:32,703 INFO L87 Difference]: Start difference. First operand 1291 states and 1903 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:32,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:24:32,872 INFO L93 Difference]: Finished difference Result 2511 states and 3768 transitions. [2024-11-24 00:24:32,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:24:32,872 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 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 53 [2024-11-24 00:24:32,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:24:32,882 INFO L225 Difference]: With dead ends: 2511 [2024-11-24 00:24:32,883 INFO L226 Difference]: Without dead ends: 2145 [2024-11-24 00:24:32,884 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:24:32,885 INFO L435 NwaCegarLoop]: 448 mSDtfsCounter, 639 mSDsluCounter, 694 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 639 SdHoareTripleChecker+Valid, 1142 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:24:32,886 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [639 Valid, 1142 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:24:32,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2145 states. [2024-11-24 00:24:32,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2145 to 1740. [2024-11-24 00:24:32,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1740 states, 1739 states have (on average 1.4836112708453133) internal successors, (2580), 1739 states have internal predecessors, (2580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:32,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1740 states to 1740 states and 2580 transitions. [2024-11-24 00:24:32,959 INFO L78 Accepts]: Start accepts. Automaton has 1740 states and 2580 transitions. Word has length 53 [2024-11-24 00:24:32,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:24:32,960 INFO L471 AbstractCegarLoop]: Abstraction has 1740 states and 2580 transitions. [2024-11-24 00:24:32,960 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:32,960 INFO L276 IsEmpty]: Start isEmpty. Operand 1740 states and 2580 transitions. [2024-11-24 00:24:32,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-24 00:24:32,962 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:24:32,962 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:24:32,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 00:24:32,963 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:24:32,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:24:32,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1286312845, now seen corresponding path program 1 times [2024-11-24 00:24:32,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:24:32,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31151314] [2024-11-24 00:24:32,964 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:24:32,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:24:33,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:24:33,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:24:33,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:24:33,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31151314] [2024-11-24 00:24:33,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31151314] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:24:33,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:24:33,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:24:33,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430479882] [2024-11-24 00:24:33,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:24:33,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:24:33,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:24:33,193 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:24:33,196 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:24:33,197 INFO L87 Difference]: Start difference. First operand 1740 states and 2580 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:33,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:24:33,337 INFO L93 Difference]: Finished difference Result 2960 states and 4445 transitions. [2024-11-24 00:24:33,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:24:33,338 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 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 53 [2024-11-24 00:24:33,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:24:33,349 INFO L225 Difference]: With dead ends: 2960 [2024-11-24 00:24:33,349 INFO L226 Difference]: Without dead ends: 2594 [2024-11-24 00:24:33,355 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:24:33,356 INFO L435 NwaCegarLoop]: 402 mSDtfsCounter, 631 mSDsluCounter, 595 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 631 SdHoareTripleChecker+Valid, 997 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:24:33,356 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [631 Valid, 997 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:24:33,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2594 states. [2024-11-24 00:24:33,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2594 to 2085. [2024-11-24 00:24:33,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2085 states, 2084 states have (on average 1.4889635316698657) internal successors, (3103), 2084 states have internal predecessors, (3103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:33,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2085 states to 2085 states and 3103 transitions. [2024-11-24 00:24:33,433 INFO L78 Accepts]: Start accepts. Automaton has 2085 states and 3103 transitions. Word has length 53 [2024-11-24 00:24:33,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:24:33,434 INFO L471 AbstractCegarLoop]: Abstraction has 2085 states and 3103 transitions. [2024-11-24 00:24:33,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:33,435 INFO L276 IsEmpty]: Start isEmpty. Operand 2085 states and 3103 transitions. [2024-11-24 00:24:33,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-24 00:24:33,436 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:24:33,436 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:24:33,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 00:24:33,436 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:24:33,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:24:33,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1015763425, now seen corresponding path program 1 times [2024-11-24 00:24:33,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:24:33,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957053187] [2024-11-24 00:24:33,437 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:24:33,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:24:33,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:24:33,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:24:33,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:24:33,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957053187] [2024-11-24 00:24:33,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957053187] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:24:33,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:24:33,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:24:33,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861091016] [2024-11-24 00:24:33,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:24:33,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:24:33,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:24:33,691 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:24:33,691 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:24:33,691 INFO L87 Difference]: Start difference. First operand 2085 states and 3103 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:33,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:24:33,859 INFO L93 Difference]: Finished difference Result 3359 states and 5045 transitions. [2024-11-24 00:24:33,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:24:33,859 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 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 53 [2024-11-24 00:24:33,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:24:33,871 INFO L225 Difference]: With dead ends: 3359 [2024-11-24 00:24:33,871 INFO L226 Difference]: Without dead ends: 2993 [2024-11-24 00:24:33,873 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:24:33,875 INFO L435 NwaCegarLoop]: 429 mSDtfsCounter, 633 mSDsluCounter, 713 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 633 SdHoareTripleChecker+Valid, 1142 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:24:33,876 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [633 Valid, 1142 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:24:33,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2993 states. [2024-11-24 00:24:33,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2993 to 2375. [2024-11-24 00:24:33,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2375 states, 2374 states have (on average 1.4928390901432183) internal successors, (3544), 2374 states have internal predecessors, (3544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:33,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2375 states to 2375 states and 3544 transitions. [2024-11-24 00:24:33,961 INFO L78 Accepts]: Start accepts. Automaton has 2375 states and 3544 transitions. Word has length 53 [2024-11-24 00:24:33,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:24:33,961 INFO L471 AbstractCegarLoop]: Abstraction has 2375 states and 3544 transitions. [2024-11-24 00:24:33,962 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:33,962 INFO L276 IsEmpty]: Start isEmpty. Operand 2375 states and 3544 transitions. [2024-11-24 00:24:33,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-24 00:24:33,967 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:24:33,967 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:24:33,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 00:24:33,968 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:24:33,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:24:33,968 INFO L85 PathProgramCache]: Analyzing trace with hash -1968890954, now seen corresponding path program 1 times [2024-11-24 00:24:33,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:24:33,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086296132] [2024-11-24 00:24:33,969 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:24:33,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:24:34,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:24:34,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:24:34,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:24:34,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086296132] [2024-11-24 00:24:34,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086296132] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:24:34,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:24:34,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:24:34,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383630820] [2024-11-24 00:24:34,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:24:34,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:24:34,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:24:34,160 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:24:34,160 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:24:34,161 INFO L87 Difference]: Start difference. First operand 2375 states and 3544 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:34,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:24:34,527 INFO L93 Difference]: Finished difference Result 5650 states and 8421 transitions. [2024-11-24 00:24:34,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:24:34,528 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2024-11-24 00:24:34,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:24:34,541 INFO L225 Difference]: With dead ends: 5650 [2024-11-24 00:24:34,541 INFO L226 Difference]: Without dead ends: 3302 [2024-11-24 00:24:34,545 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:24:34,546 INFO L435 NwaCegarLoop]: 129 mSDtfsCounter, 902 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 902 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:24:34,547 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [902 Valid, 212 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:24:34,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3302 states. [2024-11-24 00:24:34,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3302 to 3275. [2024-11-24 00:24:34,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3275 states, 3274 states have (on average 1.4706780696395847) internal successors, (4815), 3274 states have internal predecessors, (4815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:34,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3275 states to 3275 states and 4815 transitions. [2024-11-24 00:24:34,643 INFO L78 Accepts]: Start accepts. Automaton has 3275 states and 4815 transitions. Word has length 57 [2024-11-24 00:24:34,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:24:34,643 INFO L471 AbstractCegarLoop]: Abstraction has 3275 states and 4815 transitions. [2024-11-24 00:24:34,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:34,643 INFO L276 IsEmpty]: Start isEmpty. Operand 3275 states and 4815 transitions. [2024-11-24 00:24:34,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-24 00:24:34,646 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:24:34,646 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:24:34,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 00:24:34,647 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:24:34,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:24:34,647 INFO L85 PathProgramCache]: Analyzing trace with hash -108107112, now seen corresponding path program 1 times [2024-11-24 00:24:34,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:24:34,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404030865] [2024-11-24 00:24:34,648 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:24:34,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:24:34,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:24:34,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:24:34,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:24:34,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404030865] [2024-11-24 00:24:34,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404030865] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:24:34,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:24:34,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:24:34,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412013951] [2024-11-24 00:24:34,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:24:34,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:24:34,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:24:34,828 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:24:34,828 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:24:34,828 INFO L87 Difference]: Start difference. First operand 3275 states and 4815 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:35,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:24:35,165 INFO L93 Difference]: Finished difference Result 7802 states and 11466 transitions. [2024-11-24 00:24:35,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:24:35,165 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2024-11-24 00:24:35,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:24:35,181 INFO L225 Difference]: With dead ends: 7802 [2024-11-24 00:24:35,181 INFO L226 Difference]: Without dead ends: 4572 [2024-11-24 00:24:35,186 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:24:35,187 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 888 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 888 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:24:35,187 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [888 Valid, 230 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:24:35,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4572 states. [2024-11-24 00:24:35,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4572 to 4547. [2024-11-24 00:24:35,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4547 states, 4546 states have (on average 1.457765068191817) internal successors, (6627), 4546 states have internal predecessors, (6627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:35,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4547 states to 4547 states and 6627 transitions. [2024-11-24 00:24:35,401 INFO L78 Accepts]: Start accepts. Automaton has 4547 states and 6627 transitions. Word has length 57 [2024-11-24 00:24:35,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:24:35,402 INFO L471 AbstractCegarLoop]: Abstraction has 4547 states and 6627 transitions. [2024-11-24 00:24:35,402 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:35,402 INFO L276 IsEmpty]: Start isEmpty. Operand 4547 states and 6627 transitions. [2024-11-24 00:24:35,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-24 00:24:35,405 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:24:35,405 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:24:35,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 00:24:35,406 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:24:35,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:24:35,408 INFO L85 PathProgramCache]: Analyzing trace with hash 871846780, now seen corresponding path program 1 times [2024-11-24 00:24:35,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:24:35,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309304345] [2024-11-24 00:24:35,408 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:24:35,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:24:35,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:24:35,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:24:35,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:24:35,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309304345] [2024-11-24 00:24:35,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309304345] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:24:35,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:24:35,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:24:35,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832889458] [2024-11-24 00:24:35,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:24:35,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:24:35,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:24:35,555 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:24:35,555 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:24:35,555 INFO L87 Difference]: Start difference. First operand 4547 states and 6627 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:35,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:24:35,872 INFO L93 Difference]: Finished difference Result 10777 states and 15690 transitions. [2024-11-24 00:24:35,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:24:35,873 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2024-11-24 00:24:35,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:24:35,905 INFO L225 Difference]: With dead ends: 10777 [2024-11-24 00:24:35,906 INFO L226 Difference]: Without dead ends: 6311 [2024-11-24 00:24:35,911 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:24:35,912 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 843 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 843 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:24:35,916 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [843 Valid, 232 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:24:35,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6311 states. [2024-11-24 00:24:36,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6311 to 6276. [2024-11-24 00:24:36,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6276 states, 6275 states have (on average 1.4422310756972112) internal successors, (9050), 6275 states have internal predecessors, (9050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:36,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6276 states to 6276 states and 9050 transitions. [2024-11-24 00:24:36,095 INFO L78 Accepts]: Start accepts. Automaton has 6276 states and 9050 transitions. Word has length 58 [2024-11-24 00:24:36,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:24:36,096 INFO L471 AbstractCegarLoop]: Abstraction has 6276 states and 9050 transitions. [2024-11-24 00:24:36,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:36,096 INFO L276 IsEmpty]: Start isEmpty. Operand 6276 states and 9050 transitions. [2024-11-24 00:24:36,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-24 00:24:36,099 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:24:36,099 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:24:36,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-24 00:24:36,101 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:24:36,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:24:36,102 INFO L85 PathProgramCache]: Analyzing trace with hash 536362735, now seen corresponding path program 1 times [2024-11-24 00:24:36,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:24:36,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780078715] [2024-11-24 00:24:36,102 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:24:36,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:24:36,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:24:36,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:24:36,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:24:36,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780078715] [2024-11-24 00:24:36,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780078715] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:24:36,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:24:36,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:24:36,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998468662] [2024-11-24 00:24:36,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:24:36,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:24:36,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:24:36,335 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:24:36,336 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:24:36,336 INFO L87 Difference]: Start difference. First operand 6276 states and 9050 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:36,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:24:36,836 INFO L93 Difference]: Finished difference Result 14202 states and 20354 transitions. [2024-11-24 00:24:36,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 00:24:36,836 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 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 59 [2024-11-24 00:24:36,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:24:36,912 INFO L225 Difference]: With dead ends: 14202 [2024-11-24 00:24:36,913 INFO L226 Difference]: Without dead ends: 10956 [2024-11-24 00:24:36,917 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-24 00:24:36,918 INFO L435 NwaCegarLoop]: 124 mSDtfsCounter, 1107 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1107 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:24:36,918 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1107 Valid, 330 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 00:24:36,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10956 states. [2024-11-24 00:24:37,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10956 to 6296. [2024-11-24 00:24:37,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6296 states, 6295 states have (on average 1.4414614773629866) internal successors, (9074), 6295 states have internal predecessors, (9074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:37,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6296 states to 6296 states and 9074 transitions. [2024-11-24 00:24:37,097 INFO L78 Accepts]: Start accepts. Automaton has 6296 states and 9074 transitions. Word has length 59 [2024-11-24 00:24:37,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:24:37,097 INFO L471 AbstractCegarLoop]: Abstraction has 6296 states and 9074 transitions. [2024-11-24 00:24:37,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:37,098 INFO L276 IsEmpty]: Start isEmpty. Operand 6296 states and 9074 transitions. [2024-11-24 00:24:37,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-24 00:24:37,103 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:24:37,103 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:24:37,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-24 00:24:37,103 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:24:37,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:24:37,104 INFO L85 PathProgramCache]: Analyzing trace with hash -426804272, now seen corresponding path program 1 times [2024-11-24 00:24:37,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:24:37,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247993694] [2024-11-24 00:24:37,104 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:24:37,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:24:37,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:24:37,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:24:37,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:24:37,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247993694] [2024-11-24 00:24:37,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247993694] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:24:37,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:24:37,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:24:37,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102963036] [2024-11-24 00:24:37,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:24:37,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:24:37,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:24:37,304 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:24:37,305 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:24:37,305 INFO L87 Difference]: Start difference. First operand 6296 states and 9074 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:37,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:24:37,752 INFO L93 Difference]: Finished difference Result 16430 states and 23516 transitions. [2024-11-24 00:24:37,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 00:24:37,753 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 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 59 [2024-11-24 00:24:37,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:24:37,782 INFO L225 Difference]: With dead ends: 16430 [2024-11-24 00:24:37,782 INFO L226 Difference]: Without dead ends: 13332 [2024-11-24 00:24:37,788 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-24 00:24:37,789 INFO L435 NwaCegarLoop]: 130 mSDtfsCounter, 1288 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1288 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:24:37,789 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1288 Valid, 378 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:24:37,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13332 states. [2024-11-24 00:24:37,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13332 to 6390. [2024-11-24 00:24:38,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6390 states, 6389 states have (on average 1.4391923618719675) internal successors, (9195), 6389 states have internal predecessors, (9195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:38,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6390 states to 6390 states and 9195 transitions. [2024-11-24 00:24:38,025 INFO L78 Accepts]: Start accepts. Automaton has 6390 states and 9195 transitions. Word has length 59 [2024-11-24 00:24:38,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:24:38,025 INFO L471 AbstractCegarLoop]: Abstraction has 6390 states and 9195 transitions. [2024-11-24 00:24:38,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:38,025 INFO L276 IsEmpty]: Start isEmpty. Operand 6390 states and 9195 transitions. [2024-11-24 00:24:38,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-24 00:24:38,029 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:24:38,030 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:24:38,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-24 00:24:38,030 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:24:38,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:24:38,031 INFO L85 PathProgramCache]: Analyzing trace with hash -974429839, now seen corresponding path program 1 times [2024-11-24 00:24:38,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:24:38,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690070220] [2024-11-24 00:24:38,031 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:24:38,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:24:38,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:24:38,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:24:38,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:24:38,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690070220] [2024-11-24 00:24:38,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690070220] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:24:38,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:24:38,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:24:38,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822609203] [2024-11-24 00:24:38,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:24:38,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:24:38,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:24:38,218 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:24:38,218 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:24:38,218 INFO L87 Difference]: Start difference. First operand 6390 states and 9195 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:38,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:24:38,687 INFO L93 Difference]: Finished difference Result 19083 states and 27326 transitions. [2024-11-24 00:24:38,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 00:24:38,688 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 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 59 [2024-11-24 00:24:38,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:24:38,717 INFO L225 Difference]: With dead ends: 19083 [2024-11-24 00:24:38,717 INFO L226 Difference]: Without dead ends: 15985 [2024-11-24 00:24:38,723 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-24 00:24:38,724 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 1445 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1445 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:24:38,725 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1445 Valid, 389 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:24:38,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15985 states. [2024-11-24 00:24:38,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15985 to 6446. [2024-11-24 00:24:38,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6446 states, 6445 states have (on average 1.4373933281613653) internal successors, (9264), 6445 states have internal predecessors, (9264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:38,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6446 states to 6446 states and 9264 transitions. [2024-11-24 00:24:38,956 INFO L78 Accepts]: Start accepts. Automaton has 6446 states and 9264 transitions. Word has length 59 [2024-11-24 00:24:38,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:24:38,956 INFO L471 AbstractCegarLoop]: Abstraction has 6446 states and 9264 transitions. [2024-11-24 00:24:38,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:38,957 INFO L276 IsEmpty]: Start isEmpty. Operand 6446 states and 9264 transitions. [2024-11-24 00:24:38,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-24 00:24:38,961 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:24:38,961 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:24:38,961 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-24 00:24:38,961 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:24:38,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:24:38,962 INFO L85 PathProgramCache]: Analyzing trace with hash -1695106365, now seen corresponding path program 1 times [2024-11-24 00:24:38,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:24:38,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408335967] [2024-11-24 00:24:38,963 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:24:38,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:24:39,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:24:39,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:24:39,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:24:39,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408335967] [2024-11-24 00:24:39,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408335967] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:24:39,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:24:39,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 00:24:39,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783861202] [2024-11-24 00:24:39,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:24:39,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 00:24:39,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:24:39,472 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 00:24:39,472 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:24:39,473 INFO L87 Difference]: Start difference. First operand 6446 states and 9264 transitions. Second operand has 10 states, 10 states have (on average 6.1) internal successors, (61), 9 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:40,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:24:40,342 INFO L93 Difference]: Finished difference Result 15299 states and 22049 transitions. [2024-11-24 00:24:40,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-24 00:24:40,342 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 9 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2024-11-24 00:24:40,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:24:40,362 INFO L225 Difference]: With dead ends: 15299 [2024-11-24 00:24:40,362 INFO L226 Difference]: Without dead ends: 10109 [2024-11-24 00:24:40,367 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2024-11-24 00:24:40,368 INFO L435 NwaCegarLoop]: 144 mSDtfsCounter, 1024 mSDsluCounter, 778 mSDsCounter, 0 mSdLazyCounter, 759 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1024 SdHoareTripleChecker+Valid, 922 SdHoareTripleChecker+Invalid, 770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 00:24:40,369 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1024 Valid, 922 Invalid, 770 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 759 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 00:24:40,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10109 states. [2024-11-24 00:24:40,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10109 to 6318. [2024-11-24 00:24:40,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6318 states, 6317 states have (on average 1.434383409846446) internal successors, (9061), 6317 states have internal predecessors, (9061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:40,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6318 states to 6318 states and 9061 transitions. [2024-11-24 00:24:40,517 INFO L78 Accepts]: Start accepts. Automaton has 6318 states and 9061 transitions. Word has length 61 [2024-11-24 00:24:40,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:24:40,517 INFO L471 AbstractCegarLoop]: Abstraction has 6318 states and 9061 transitions. [2024-11-24 00:24:40,517 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 9 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:40,518 INFO L276 IsEmpty]: Start isEmpty. Operand 6318 states and 9061 transitions. [2024-11-24 00:24:40,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-24 00:24:40,521 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:24:40,521 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:24:40,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-24 00:24:40,521 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:24:40,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:24:40,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1748259780, now seen corresponding path program 1 times [2024-11-24 00:24:40,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:24:40,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654245408] [2024-11-24 00:24:40,522 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:24:40,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:24:40,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:24:40,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:24:40,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:24:40,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654245408] [2024-11-24 00:24:40,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654245408] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:24:40,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:24:40,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 00:24:40,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305111261] [2024-11-24 00:24:40,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:24:40,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 00:24:40,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:24:40,889 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 00:24:40,890 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:24:40,890 INFO L87 Difference]: Start difference. First operand 6318 states and 9061 transitions. Second operand has 10 states, 10 states have (on average 6.1) internal successors, (61), 9 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:41,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:24:41,668 INFO L93 Difference]: Finished difference Result 15339 states and 22038 transitions. [2024-11-24 00:24:41,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-24 00:24:41,669 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 9 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2024-11-24 00:24:41,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:24:41,688 INFO L225 Difference]: With dead ends: 15339 [2024-11-24 00:24:41,689 INFO L226 Difference]: Without dead ends: 10065 [2024-11-24 00:24:41,696 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-24 00:24:41,696 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 968 mSDsluCounter, 581 mSDsCounter, 0 mSdLazyCounter, 678 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 968 SdHoareTripleChecker+Valid, 721 SdHoareTripleChecker+Invalid, 694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:24:41,697 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [968 Valid, 721 Invalid, 694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 678 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 00:24:41,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10065 states. [2024-11-24 00:24:41,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10065 to 6129. [2024-11-24 00:24:41,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6129 states, 6128 states have (on average 1.4319516971279374) internal successors, (8775), 6128 states have internal predecessors, (8775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:41,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6129 states to 6129 states and 8775 transitions. [2024-11-24 00:24:41,907 INFO L78 Accepts]: Start accepts. Automaton has 6129 states and 8775 transitions. Word has length 61 [2024-11-24 00:24:41,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:24:41,907 INFO L471 AbstractCegarLoop]: Abstraction has 6129 states and 8775 transitions. [2024-11-24 00:24:41,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 9 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:41,908 INFO L276 IsEmpty]: Start isEmpty. Operand 6129 states and 8775 transitions. [2024-11-24 00:24:41,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-24 00:24:41,910 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:24:41,911 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:24:41,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-24 00:24:41,911 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:24:41,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:24:41,912 INFO L85 PathProgramCache]: Analyzing trace with hash 11490693, now seen corresponding path program 1 times [2024-11-24 00:24:41,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:24:41,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994779610] [2024-11-24 00:24:41,912 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:24:41,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:24:41,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:24:42,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:24:42,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:24:42,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994779610] [2024-11-24 00:24:42,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994779610] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:24:42,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:24:42,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 00:24:42,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079489844] [2024-11-24 00:24:42,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:24:42,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 00:24:42,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:24:42,245 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 00:24:42,245 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:24:42,245 INFO L87 Difference]: Start difference. First operand 6129 states and 8775 transitions. Second operand has 10 states, 10 states have (on average 6.1) internal successors, (61), 9 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:42,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:24:42,883 INFO L93 Difference]: Finished difference Result 14937 states and 21487 transitions. [2024-11-24 00:24:42,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-24 00:24:42,883 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 9 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2024-11-24 00:24:42,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:24:42,900 INFO L225 Difference]: With dead ends: 14937 [2024-11-24 00:24:42,900 INFO L226 Difference]: Without dead ends: 9719 [2024-11-24 00:24:42,906 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=247, Unknown=0, NotChecked=0, Total=342 [2024-11-24 00:24:42,907 INFO L435 NwaCegarLoop]: 147 mSDtfsCounter, 835 mSDsluCounter, 645 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 835 SdHoareTripleChecker+Valid, 792 SdHoareTripleChecker+Invalid, 600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:24:42,907 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [835 Valid, 792 Invalid, 600 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 590 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 00:24:42,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9719 states. [2024-11-24 00:24:43,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9719 to 5980. [2024-11-24 00:24:43,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5980 states, 5979 states have (on average 1.4323465462451914) internal successors, (8564), 5979 states have internal predecessors, (8564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:43,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5980 states to 5980 states and 8564 transitions. [2024-11-24 00:24:43,021 INFO L78 Accepts]: Start accepts. Automaton has 5980 states and 8564 transitions. Word has length 61 [2024-11-24 00:24:43,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:24:43,022 INFO L471 AbstractCegarLoop]: Abstraction has 5980 states and 8564 transitions. [2024-11-24 00:24:43,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 9 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:43,022 INFO L276 IsEmpty]: Start isEmpty. Operand 5980 states and 8564 transitions. [2024-11-24 00:24:43,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-24 00:24:43,025 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:24:43,025 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:24:43,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-24 00:24:43,025 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:24:43,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:24:43,027 INFO L85 PathProgramCache]: Analyzing trace with hash -746765663, now seen corresponding path program 1 times [2024-11-24 00:24:43,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:24:43,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291946869] [2024-11-24 00:24:43,027 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:24:43,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:24:43,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:24:43,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:24:43,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:24:43,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291946869] [2024-11-24 00:24:43,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291946869] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:24:43,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:24:43,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:24:43,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540892608] [2024-11-24 00:24:43,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:24:43,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:24:43,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:24:43,122 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:24:43,122 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:24:43,122 INFO L87 Difference]: Start difference. First operand 5980 states and 8564 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:43,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:24:43,178 INFO L93 Difference]: Finished difference Result 9027 states and 12937 transitions. [2024-11-24 00:24:43,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:24:43,179 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2024-11-24 00:24:43,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:24:43,192 INFO L225 Difference]: With dead ends: 9027 [2024-11-24 00:24:43,192 INFO L226 Difference]: Without dead ends: 5797 [2024-11-24 00:24:43,196 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:24:43,196 INFO L435 NwaCegarLoop]: 344 mSDtfsCounter, 150 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:24:43,197 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 526 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:24:43,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5797 states. [2024-11-24 00:24:43,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5797 to 5795. [2024-11-24 00:24:43,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5795 states, 5794 states have (on average 1.4126682775284778) internal successors, (8185), 5794 states have internal predecessors, (8185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:43,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5795 states to 5795 states and 8185 transitions. [2024-11-24 00:24:43,305 INFO L78 Accepts]: Start accepts. Automaton has 5795 states and 8185 transitions. Word has length 62 [2024-11-24 00:24:43,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:24:43,306 INFO L471 AbstractCegarLoop]: Abstraction has 5795 states and 8185 transitions. [2024-11-24 00:24:43,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:43,306 INFO L276 IsEmpty]: Start isEmpty. Operand 5795 states and 8185 transitions. [2024-11-24 00:24:43,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-24 00:24:43,309 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:24:43,309 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:24:43,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-24 00:24:43,310 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:24:43,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:24:43,310 INFO L85 PathProgramCache]: Analyzing trace with hash -691619625, now seen corresponding path program 1 times [2024-11-24 00:24:43,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:24:43,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810205742] [2024-11-24 00:24:43,311 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:24:43,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:24:43,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:24:43,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:24:43,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:24:43,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810205742] [2024-11-24 00:24:43,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810205742] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:24:43,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:24:43,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:24:43,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356776643] [2024-11-24 00:24:43,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:24:43,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:24:43,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:24:43,397 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:24:43,397 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:24:43,397 INFO L87 Difference]: Start difference. First operand 5795 states and 8185 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:43,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:24:43,450 INFO L93 Difference]: Finished difference Result 8079 states and 11408 transitions. [2024-11-24 00:24:43,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:24:43,450 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2024-11-24 00:24:43,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:24:43,459 INFO L225 Difference]: With dead ends: 8079 [2024-11-24 00:24:43,459 INFO L226 Difference]: Without dead ends: 5014 [2024-11-24 00:24:43,463 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:24:43,464 INFO L435 NwaCegarLoop]: 320 mSDtfsCounter, 136 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:24:43,464 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 515 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:24:43,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5014 states. [2024-11-24 00:24:43,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5014 to 5012. [2024-11-24 00:24:43,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5012 states, 5011 states have (on average 1.3883456395928957) internal successors, (6957), 5011 states have internal predecessors, (6957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:43,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5012 states to 5012 states and 6957 transitions. [2024-11-24 00:24:43,562 INFO L78 Accepts]: Start accepts. Automaton has 5012 states and 6957 transitions. Word has length 62 [2024-11-24 00:24:43,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:24:43,562 INFO L471 AbstractCegarLoop]: Abstraction has 5012 states and 6957 transitions. [2024-11-24 00:24:43,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:43,562 INFO L276 IsEmpty]: Start isEmpty. Operand 5012 states and 6957 transitions. [2024-11-24 00:24:43,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-24 00:24:43,566 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:24:43,566 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:24:43,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-24 00:24:43,566 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:24:43,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:24:43,567 INFO L85 PathProgramCache]: Analyzing trace with hash -1051063940, now seen corresponding path program 1 times [2024-11-24 00:24:43,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:24:43,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370593392] [2024-11-24 00:24:43,567 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:24:43,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:24:43,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:24:43,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:24:43,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:24:43,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370593392] [2024-11-24 00:24:43,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370593392] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:24:43,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:24:43,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:24:43,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760561960] [2024-11-24 00:24:43,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:24:43,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:24:43,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:24:43,659 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:24:43,659 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:24:43,659 INFO L87 Difference]: Start difference. First operand 5012 states and 6957 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:43,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:24:43,703 INFO L93 Difference]: Finished difference Result 6614 states and 9183 transitions. [2024-11-24 00:24:43,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:24:43,704 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2024-11-24 00:24:43,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:24:43,712 INFO L225 Difference]: With dead ends: 6614 [2024-11-24 00:24:43,712 INFO L226 Difference]: Without dead ends: 3858 [2024-11-24 00:24:43,714 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:24:43,715 INFO L435 NwaCegarLoop]: 331 mSDtfsCounter, 148 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:24:43,716 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 526 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:24:43,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3858 states. [2024-11-24 00:24:43,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3858 to 3856. [2024-11-24 00:24:43,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3856 states, 3855 states have (on average 1.364461738002594) internal successors, (5260), 3855 states have internal predecessors, (5260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:43,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3856 states to 3856 states and 5260 transitions. [2024-11-24 00:24:43,764 INFO L78 Accepts]: Start accepts. Automaton has 3856 states and 5260 transitions. Word has length 62 [2024-11-24 00:24:43,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:24:43,765 INFO L471 AbstractCegarLoop]: Abstraction has 3856 states and 5260 transitions. [2024-11-24 00:24:43,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:43,765 INFO L276 IsEmpty]: Start isEmpty. Operand 3856 states and 5260 transitions. [2024-11-24 00:24:43,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-24 00:24:43,768 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:24:43,768 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:24:43,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-24 00:24:43,768 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:24:43,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:24:43,769 INFO L85 PathProgramCache]: Analyzing trace with hash -751537894, now seen corresponding path program 1 times [2024-11-24 00:24:43,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:24:43,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137649912] [2024-11-24 00:24:43,769 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:24:43,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:24:43,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:24:43,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:24:43,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:24:43,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137649912] [2024-11-24 00:24:43,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137649912] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:24:43,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:24:43,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:24:43,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783299921] [2024-11-24 00:24:43,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:24:43,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:24:43,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:24:43,832 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:24:43,832 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:24:43,832 INFO L87 Difference]: Start difference. First operand 3856 states and 5260 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:43,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:24:43,897 INFO L93 Difference]: Finished difference Result 7099 states and 9747 transitions. [2024-11-24 00:24:43,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:24:43,898 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2024-11-24 00:24:43,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:24:43,908 INFO L225 Difference]: With dead ends: 7099 [2024-11-24 00:24:43,908 INFO L226 Difference]: Without dead ends: 5180 [2024-11-24 00:24:43,910 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:24:43,911 INFO L435 NwaCegarLoop]: 214 mSDtfsCounter, 173 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:24:43,911 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 346 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:24:43,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5180 states. [2024-11-24 00:24:43,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5180 to 3667. [2024-11-24 00:24:43,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3667 states, 3666 states have (on average 1.363884342607747) internal successors, (5000), 3666 states have internal predecessors, (5000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:43,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3667 states to 3667 states and 5000 transitions. [2024-11-24 00:24:43,965 INFO L78 Accepts]: Start accepts. Automaton has 3667 states and 5000 transitions. Word has length 63 [2024-11-24 00:24:43,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:24:43,965 INFO L471 AbstractCegarLoop]: Abstraction has 3667 states and 5000 transitions. [2024-11-24 00:24:43,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:43,965 INFO L276 IsEmpty]: Start isEmpty. Operand 3667 states and 5000 transitions. [2024-11-24 00:24:43,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-24 00:24:43,968 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:24:43,968 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:24:43,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-24 00:24:43,968 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:24:43,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:24:43,970 INFO L85 PathProgramCache]: Analyzing trace with hash 296287221, now seen corresponding path program 1 times [2024-11-24 00:24:43,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:24:43,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106744579] [2024-11-24 00:24:43,970 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:24:43,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:24:44,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:24:45,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:24:45,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:24:45,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106744579] [2024-11-24 00:24:45,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106744579] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:24:45,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:24:45,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2024-11-24 00:24:45,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886845626] [2024-11-24 00:24:45,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:24:45,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-24 00:24:45,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:24:45,700 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-24 00:24:45,700 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2024-11-24 00:24:45,700 INFO L87 Difference]: Start difference. First operand 3667 states and 5000 transitions. Second operand has 23 states, 23 states have (on average 2.739130434782609) internal successors, (63), 23 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:49,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:24:49,349 INFO L93 Difference]: Finished difference Result 6811 states and 9341 transitions. [2024-11-24 00:24:49,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-24 00:24:49,349 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.739130434782609) internal successors, (63), 23 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2024-11-24 00:24:49,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:24:49,362 INFO L225 Difference]: With dead ends: 6811 [2024-11-24 00:24:49,363 INFO L226 Difference]: Without dead ends: 6744 [2024-11-24 00:24:49,365 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=321, Invalid=1571, Unknown=0, NotChecked=0, Total=1892 [2024-11-24 00:24:49,366 INFO L435 NwaCegarLoop]: 236 mSDtfsCounter, 2009 mSDsluCounter, 3232 mSDsCounter, 0 mSdLazyCounter, 2557 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2009 SdHoareTripleChecker+Valid, 3468 SdHoareTripleChecker+Invalid, 2571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 2557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:24:49,366 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2009 Valid, 3468 Invalid, 2571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 2557 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-24 00:24:49,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6744 states. [2024-11-24 00:24:49,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6744 to 3679. [2024-11-24 00:24:49,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3679 states, 3678 states have (on average 1.3635127786840675) internal successors, (5015), 3678 states have internal predecessors, (5015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:49,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3679 states to 3679 states and 5015 transitions. [2024-11-24 00:24:49,429 INFO L78 Accepts]: Start accepts. Automaton has 3679 states and 5015 transitions. Word has length 63 [2024-11-24 00:24:49,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:24:49,430 INFO L471 AbstractCegarLoop]: Abstraction has 3679 states and 5015 transitions. [2024-11-24 00:24:49,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.739130434782609) internal successors, (63), 23 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:49,430 INFO L276 IsEmpty]: Start isEmpty. Operand 3679 states and 5015 transitions. [2024-11-24 00:24:49,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-24 00:24:49,433 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:24:49,433 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:24:49,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-24 00:24:49,433 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:24:49,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:24:49,434 INFO L85 PathProgramCache]: Analyzing trace with hash -678356547, now seen corresponding path program 1 times [2024-11-24 00:24:49,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:24:49,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121378380] [2024-11-24 00:24:49,434 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:24:49,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:24:49,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:24:50,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:24:50,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:24:50,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121378380] [2024-11-24 00:24:50,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121378380] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:24:50,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:24:50,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-24 00:24:50,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675995063] [2024-11-24 00:24:50,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:24:50,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-24 00:24:50,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:24:50,237 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-24 00:24:50,237 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-24 00:24:50,237 INFO L87 Difference]: Start difference. First operand 3679 states and 5015 transitions. Second operand has 13 states, 13 states have (on average 4.846153846153846) internal successors, (63), 13 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:51,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:24:51,342 INFO L93 Difference]: Finished difference Result 8031 states and 11044 transitions. [2024-11-24 00:24:51,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-24 00:24:51,346 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.846153846153846) internal successors, (63), 13 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2024-11-24 00:24:51,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:24:51,369 INFO L225 Difference]: With dead ends: 8031 [2024-11-24 00:24:51,369 INFO L226 Difference]: Without dead ends: 7643 [2024-11-24 00:24:51,375 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=166, Invalid=434, Unknown=0, NotChecked=0, Total=600 [2024-11-24 00:24:51,377 INFO L435 NwaCegarLoop]: 205 mSDtfsCounter, 2118 mSDsluCounter, 1220 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2118 SdHoareTripleChecker+Valid, 1425 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:24:51,382 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2118 Valid, 1425 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 00:24:51,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7643 states. [2024-11-24 00:24:51,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7643 to 3590. [2024-11-24 00:24:51,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3590 states, 3589 states have (on average 1.3636110337141265) internal successors, (4894), 3589 states have internal predecessors, (4894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:51,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3590 states to 3590 states and 4894 transitions. [2024-11-24 00:24:51,515 INFO L78 Accepts]: Start accepts. Automaton has 3590 states and 4894 transitions. Word has length 63 [2024-11-24 00:24:51,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:24:51,515 INFO L471 AbstractCegarLoop]: Abstraction has 3590 states and 4894 transitions. [2024-11-24 00:24:51,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.846153846153846) internal successors, (63), 13 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:51,516 INFO L276 IsEmpty]: Start isEmpty. Operand 3590 states and 4894 transitions. [2024-11-24 00:24:51,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-24 00:24:51,518 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:24:51,518 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:24:51,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-24 00:24:51,519 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:24:51,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:24:51,520 INFO L85 PathProgramCache]: Analyzing trace with hash 393964366, now seen corresponding path program 1 times [2024-11-24 00:24:51,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:24:51,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75581971] [2024-11-24 00:24:51,520 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:24:51,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:24:51,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:24:51,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:24:51,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:24:51,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75581971] [2024-11-24 00:24:51,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75581971] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:24:51,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:24:51,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:24:51,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484397603] [2024-11-24 00:24:51,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:24:51,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:24:51,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:24:51,579 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:24:51,580 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:24:51,580 INFO L87 Difference]: Start difference. First operand 3590 states and 4894 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:51,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:24:51,669 INFO L93 Difference]: Finished difference Result 6698 states and 9187 transitions. [2024-11-24 00:24:51,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:24:51,670 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2024-11-24 00:24:51,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:24:51,680 INFO L225 Difference]: With dead ends: 6698 [2024-11-24 00:24:51,680 INFO L226 Difference]: Without dead ends: 4803 [2024-11-24 00:24:51,682 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:24:51,683 INFO L435 NwaCegarLoop]: 196 mSDtfsCounter, 171 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:24:51,683 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 327 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:24:51,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4803 states. [2024-11-24 00:24:51,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4803 to 3373. [2024-11-24 00:24:51,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3373 states, 3372 states have (on average 1.3629893238434163) internal successors, (4596), 3372 states have internal predecessors, (4596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:51,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3373 states to 3373 states and 4596 transitions. [2024-11-24 00:24:51,731 INFO L78 Accepts]: Start accepts. Automaton has 3373 states and 4596 transitions. Word has length 63 [2024-11-24 00:24:51,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:24:51,732 INFO L471 AbstractCegarLoop]: Abstraction has 3373 states and 4596 transitions. [2024-11-24 00:24:51,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:51,732 INFO L276 IsEmpty]: Start isEmpty. Operand 3373 states and 4596 transitions. [2024-11-24 00:24:51,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-24 00:24:51,734 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:24:51,734 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:24:51,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-24 00:24:51,735 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:24:51,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:24:51,735 INFO L85 PathProgramCache]: Analyzing trace with hash -771182262, now seen corresponding path program 1 times [2024-11-24 00:24:51,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:24:51,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623437328] [2024-11-24 00:24:51,735 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:24:51,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:24:51,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:24:53,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:24:53,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:24:53,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623437328] [2024-11-24 00:24:53,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623437328] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:24:53,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:24:53,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-24 00:24:53,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658083827] [2024-11-24 00:24:53,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:24:53,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-24 00:24:53,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:24:53,098 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-24 00:24:53,098 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2024-11-24 00:24:53,099 INFO L87 Difference]: Start difference. First operand 3373 states and 4596 transitions. Second operand has 19 states, 19 states have (on average 3.3684210526315788) internal successors, (64), 19 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:55,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:24:55,872 INFO L93 Difference]: Finished difference Result 7164 states and 9828 transitions. [2024-11-24 00:24:55,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-24 00:24:55,873 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.3684210526315788) internal successors, (64), 19 states have internal predecessors, (64), 0 states have call successors, (0), 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 64 [2024-11-24 00:24:55,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:24:55,885 INFO L225 Difference]: With dead ends: 7164 [2024-11-24 00:24:55,885 INFO L226 Difference]: Without dead ends: 7026 [2024-11-24 00:24:55,887 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=300, Invalid=1032, Unknown=0, NotChecked=0, Total=1332 [2024-11-24 00:24:55,888 INFO L435 NwaCegarLoop]: 221 mSDtfsCounter, 1989 mSDsluCounter, 2926 mSDsCounter, 0 mSdLazyCounter, 1972 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1989 SdHoareTripleChecker+Valid, 3147 SdHoareTripleChecker+Invalid, 1986 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1972 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:24:55,888 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1989 Valid, 3147 Invalid, 1986 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1972 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-24 00:24:55,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7026 states. [2024-11-24 00:24:55,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7026 to 3350. [2024-11-24 00:24:55,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3350 states, 3349 states have (on average 1.36249626754255) internal successors, (4563), 3349 states have internal predecessors, (4563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:55,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3350 states to 3350 states and 4563 transitions. [2024-11-24 00:24:55,943 INFO L78 Accepts]: Start accepts. Automaton has 3350 states and 4563 transitions. Word has length 64 [2024-11-24 00:24:55,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:24:55,944 INFO L471 AbstractCegarLoop]: Abstraction has 3350 states and 4563 transitions. [2024-11-24 00:24:55,944 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.3684210526315788) internal successors, (64), 19 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:55,944 INFO L276 IsEmpty]: Start isEmpty. Operand 3350 states and 4563 transitions. [2024-11-24 00:24:55,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-24 00:24:55,947 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:24:55,947 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:24:55,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-24 00:24:55,948 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:24:55,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:24:55,948 INFO L85 PathProgramCache]: Analyzing trace with hash 880460014, now seen corresponding path program 1 times [2024-11-24 00:24:55,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:24:55,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278939690] [2024-11-24 00:24:55,949 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:24:55,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:24:55,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:24:56,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:24:56,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:24:56,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278939690] [2024-11-24 00:24:56,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278939690] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:24:56,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:24:56,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:24:56,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374408242] [2024-11-24 00:24:56,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:24:56,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:24:56,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:24:56,066 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:24:56,067 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:24:56,067 INFO L87 Difference]: Start difference. First operand 3350 states and 4563 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:56,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:24:56,142 INFO L93 Difference]: Finished difference Result 3356 states and 4566 transitions. [2024-11-24 00:24:56,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:24:56,143 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 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 67 [2024-11-24 00:24:56,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:24:56,149 INFO L225 Difference]: With dead ends: 3356 [2024-11-24 00:24:56,149 INFO L226 Difference]: Without dead ends: 2897 [2024-11-24 00:24:56,150 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:24:56,151 INFO L435 NwaCegarLoop]: 352 mSDtfsCounter, 625 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 625 SdHoareTripleChecker+Valid, 620 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:24:56,151 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [625 Valid, 620 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:24:56,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2897 states. [2024-11-24 00:24:56,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2897 to 2893. [2024-11-24 00:24:56,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2893 states, 2892 states have (on average 1.3641078838174274) internal successors, (3945), 2892 states have internal predecessors, (3945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:56,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2893 states to 2893 states and 3945 transitions. [2024-11-24 00:24:56,185 INFO L78 Accepts]: Start accepts. Automaton has 2893 states and 3945 transitions. Word has length 67 [2024-11-24 00:24:56,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:24:56,186 INFO L471 AbstractCegarLoop]: Abstraction has 2893 states and 3945 transitions. [2024-11-24 00:24:56,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:56,186 INFO L276 IsEmpty]: Start isEmpty. Operand 2893 states and 3945 transitions. [2024-11-24 00:24:56,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-24 00:24:56,189 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:24:56,189 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:24:56,189 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-24 00:24:56,189 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:24:56,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:24:56,190 INFO L85 PathProgramCache]: Analyzing trace with hash -1617522588, now seen corresponding path program 1 times [2024-11-24 00:24:56,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:24:56,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996427202] [2024-11-24 00:24:56,190 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:24:56,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:24:56,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:24:56,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:24:56,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:24:56,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996427202] [2024-11-24 00:24:56,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996427202] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:24:56,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:24:56,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:24:56,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687418870] [2024-11-24 00:24:56,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:24:56,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:24:56,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:24:56,304 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:24:56,304 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:24:56,304 INFO L87 Difference]: Start difference. First operand 2893 states and 3945 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:56,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:24:56,341 INFO L93 Difference]: Finished difference Result 7266 states and 10027 transitions. [2024-11-24 00:24:56,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:24:56,342 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 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 70 [2024-11-24 00:24:56,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:24:56,350 INFO L225 Difference]: With dead ends: 7266 [2024-11-24 00:24:56,350 INFO L226 Difference]: Without dead ends: 4977 [2024-11-24 00:24:56,353 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:24:56,354 INFO L435 NwaCegarLoop]: 281 mSDtfsCounter, 118 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:24:56,355 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 439 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:24:56,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4977 states. [2024-11-24 00:24:56,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4977 to 4633. [2024-11-24 00:24:56,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4633 states, 4632 states have (on average 1.3693868739205526) internal successors, (6343), 4632 states have internal predecessors, (6343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:56,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4633 states to 4633 states and 6343 transitions. [2024-11-24 00:24:56,410 INFO L78 Accepts]: Start accepts. Automaton has 4633 states and 6343 transitions. Word has length 70 [2024-11-24 00:24:56,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:24:56,410 INFO L471 AbstractCegarLoop]: Abstraction has 4633 states and 6343 transitions. [2024-11-24 00:24:56,410 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:56,410 INFO L276 IsEmpty]: Start isEmpty. Operand 4633 states and 6343 transitions. [2024-11-24 00:24:56,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-24 00:24:56,413 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:24:56,413 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:24:56,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-24 00:24:56,415 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:24:56,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:24:56,415 INFO L85 PathProgramCache]: Analyzing trace with hash 121806462, now seen corresponding path program 1 times [2024-11-24 00:24:56,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:24:56,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563915523] [2024-11-24 00:24:56,416 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:24:56,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:24:56,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:24:56,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:24:56,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:24:56,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563915523] [2024-11-24 00:24:56,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563915523] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:24:56,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:24:56,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:24:56,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091887293] [2024-11-24 00:24:56,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:24:56,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:24:56,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:24:56,521 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:24:56,521 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:24:56,522 INFO L87 Difference]: Start difference. First operand 4633 states and 6343 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:56,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:24:56,566 INFO L93 Difference]: Finished difference Result 12281 states and 16905 transitions. [2024-11-24 00:24:56,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:24:56,567 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 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 71 [2024-11-24 00:24:56,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:24:56,582 INFO L225 Difference]: With dead ends: 12281 [2024-11-24 00:24:56,582 INFO L226 Difference]: Without dead ends: 8252 [2024-11-24 00:24:56,586 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:24:56,586 INFO L435 NwaCegarLoop]: 263 mSDtfsCounter, 107 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:24:56,587 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 431 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:24:56,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8252 states. [2024-11-24 00:24:56,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8252 to 7662. [2024-11-24 00:24:56,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7662 states, 7661 states have (on average 1.368359222033677) internal successors, (10483), 7661 states have internal predecessors, (10483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:56,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7662 states to 7662 states and 10483 transitions. [2024-11-24 00:24:56,676 INFO L78 Accepts]: Start accepts. Automaton has 7662 states and 10483 transitions. Word has length 71 [2024-11-24 00:24:56,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:24:56,676 INFO L471 AbstractCegarLoop]: Abstraction has 7662 states and 10483 transitions. [2024-11-24 00:24:56,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:56,677 INFO L276 IsEmpty]: Start isEmpty. Operand 7662 states and 10483 transitions. [2024-11-24 00:24:56,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-24 00:24:56,679 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:24:56,680 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:24:56,680 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-24 00:24:56,680 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:24:56,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:24:56,680 INFO L85 PathProgramCache]: Analyzing trace with hash -577663364, now seen corresponding path program 1 times [2024-11-24 00:24:56,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:24:56,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550020217] [2024-11-24 00:24:56,680 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:24:56,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:24:56,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:24:56,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:24:56,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:24:56,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550020217] [2024-11-24 00:24:56,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550020217] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:24:56,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:24:56,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:24:56,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061753300] [2024-11-24 00:24:56,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:24:56,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:24:56,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:24:56,814 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:24:56,814 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:24:56,815 INFO L87 Difference]: Start difference. First operand 7662 states and 10483 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:56,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:24:56,878 INFO L93 Difference]: Finished difference Result 20534 states and 28057 transitions. [2024-11-24 00:24:56,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:24:56,878 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 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 73 [2024-11-24 00:24:56,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:24:56,901 INFO L225 Difference]: With dead ends: 20534 [2024-11-24 00:24:56,901 INFO L226 Difference]: Without dead ends: 13366 [2024-11-24 00:24:56,911 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:24:56,912 INFO L435 NwaCegarLoop]: 282 mSDtfsCounter, 113 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:24:56,913 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 430 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:24:56,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13366 states. [2024-11-24 00:24:57,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13366 to 12188. [2024-11-24 00:24:57,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12188 states, 12187 states have (on average 1.353245261344055) internal successors, (16492), 12187 states have internal predecessors, (16492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:57,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12188 states to 12188 states and 16492 transitions. [2024-11-24 00:24:57,050 INFO L78 Accepts]: Start accepts. Automaton has 12188 states and 16492 transitions. Word has length 73 [2024-11-24 00:24:57,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:24:57,051 INFO L471 AbstractCegarLoop]: Abstraction has 12188 states and 16492 transitions. [2024-11-24 00:24:57,051 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:57,051 INFO L276 IsEmpty]: Start isEmpty. Operand 12188 states and 16492 transitions. [2024-11-24 00:24:57,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-24 00:24:57,053 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:24:57,053 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:24:57,053 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-24 00:24:57,053 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:24:57,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:24:57,054 INFO L85 PathProgramCache]: Analyzing trace with hash -686006937, now seen corresponding path program 1 times [2024-11-24 00:24:57,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:24:57,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464578468] [2024-11-24 00:24:57,054 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:24:57,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:24:57,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:24:57,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:24:57,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:24:57,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464578468] [2024-11-24 00:24:57,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464578468] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:24:57,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:24:57,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:24:57,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933927839] [2024-11-24 00:24:57,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:24:57,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:24:57,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:24:57,311 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:24:57,311 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:24:57,312 INFO L87 Difference]: Start difference. First operand 12188 states and 16492 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:57,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:24:57,366 INFO L93 Difference]: Finished difference Result 13462 states and 18189 transitions. [2024-11-24 00:24:57,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:24:57,367 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2024-11-24 00:24:57,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:24:57,386 INFO L225 Difference]: With dead ends: 13462 [2024-11-24 00:24:57,387 INFO L226 Difference]: Without dead ends: 13460 [2024-11-24 00:24:57,390 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:24:57,391 INFO L435 NwaCegarLoop]: 195 mSDtfsCounter, 0 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 965 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:24:57,395 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 965 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:24:57,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13460 states. [2024-11-24 00:24:57,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13460 to 13460. [2024-11-24 00:24:57,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13460 states, 13459 states have (on average 1.3198603165168288) internal successors, (17764), 13459 states have internal predecessors, (17764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:57,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13460 states to 13460 states and 17764 transitions. [2024-11-24 00:24:57,604 INFO L78 Accepts]: Start accepts. Automaton has 13460 states and 17764 transitions. Word has length 74 [2024-11-24 00:24:57,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:24:57,605 INFO L471 AbstractCegarLoop]: Abstraction has 13460 states and 17764 transitions. [2024-11-24 00:24:57,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:57,605 INFO L276 IsEmpty]: Start isEmpty. Operand 13460 states and 17764 transitions. [2024-11-24 00:24:57,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-24 00:24:57,607 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:24:57,607 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:24:57,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-24 00:24:57,608 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:24:57,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:24:57,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1483002414, now seen corresponding path program 1 times [2024-11-24 00:24:57,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:24:57,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427088583] [2024-11-24 00:24:57,609 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:24:57,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:24:57,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:24:57,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:24:57,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:24:57,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427088583] [2024-11-24 00:24:57,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427088583] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:24:57,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:24:57,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:24:57,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778584278] [2024-11-24 00:24:57,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:24:57,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:24:57,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:24:57,688 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:24:57,688 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:24:57,689 INFO L87 Difference]: Start difference. First operand 13460 states and 17764 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:57,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:24:57,805 INFO L93 Difference]: Finished difference Result 32928 states and 43378 transitions. [2024-11-24 00:24:57,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:24:57,805 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2024-11-24 00:24:57,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:24:57,843 INFO L225 Difference]: With dead ends: 32928 [2024-11-24 00:24:57,843 INFO L226 Difference]: Without dead ends: 19962 [2024-11-24 00:24:57,854 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:24:57,854 INFO L435 NwaCegarLoop]: 196 mSDtfsCounter, 132 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:24:57,855 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 318 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:24:57,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19962 states. [2024-11-24 00:24:58,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19962 to 19748. [2024-11-24 00:24:58,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19748 states, 19747 states have (on average 1.293563579277865) internal successors, (25544), 19747 states have internal predecessors, (25544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:58,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19748 states to 19748 states and 25544 transitions. [2024-11-24 00:24:58,104 INFO L78 Accepts]: Start accepts. Automaton has 19748 states and 25544 transitions. Word has length 75 [2024-11-24 00:24:58,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:24:58,104 INFO L471 AbstractCegarLoop]: Abstraction has 19748 states and 25544 transitions. [2024-11-24 00:24:58,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:58,104 INFO L276 IsEmpty]: Start isEmpty. Operand 19748 states and 25544 transitions. [2024-11-24 00:24:58,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-24 00:24:58,110 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:24:58,111 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 00:24:58,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-24 00:24:58,111 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:24:58,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:24:58,112 INFO L85 PathProgramCache]: Analyzing trace with hash -1263057428, now seen corresponding path program 1 times [2024-11-24 00:24:58,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:24:58,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45413562] [2024-11-24 00:24:58,112 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:24:58,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:24:58,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:24:58,426 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:24:58,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:24:58,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45413562] [2024-11-24 00:24:58,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45413562] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:24:58,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1065891888] [2024-11-24 00:24:58,427 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:24:58,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:24:58,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:24:58,430 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:24:58,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 00:24:58,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:24:58,633 INFO L256 TraceCheckSpWp]: Trace formula consists of 431 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-24 00:24:58,642 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:25:00,153 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:25:00,154 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:25:01,895 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:25:01,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1065891888] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:25:01,897 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:25:01,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 13, 14] total 31 [2024-11-24 00:25:01,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619240850] [2024-11-24 00:25:01,897 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:25:01,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-24 00:25:01,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:25:01,898 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-24 00:25:01,899 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=837, Unknown=0, NotChecked=0, Total=992 [2024-11-24 00:25:01,899 INFO L87 Difference]: Start difference. First operand 19748 states and 25544 transitions. Second operand has 32 states, 32 states have (on average 7.375) internal successors, (236), 31 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:25:13,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:25:13,398 INFO L93 Difference]: Finished difference Result 133858 states and 170775 transitions. [2024-11-24 00:25:13,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2024-11-24 00:25:13,398 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 7.375) internal successors, (236), 31 states have internal predecessors, (236), 0 states have call successors, (0), 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 94 [2024-11-24 00:25:13,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:25:13,580 INFO L225 Difference]: With dead ends: 133858 [2024-11-24 00:25:13,581 INFO L226 Difference]: Without dead ends: 123124 [2024-11-24 00:25:13,604 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 148 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7561 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=4235, Invalid=18115, Unknown=0, NotChecked=0, Total=22350 [2024-11-24 00:25:13,608 INFO L435 NwaCegarLoop]: 352 mSDtfsCounter, 5115 mSDsluCounter, 5685 mSDsCounter, 0 mSdLazyCounter, 5761 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5115 SdHoareTripleChecker+Valid, 6037 SdHoareTripleChecker+Invalid, 5855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 5761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:25:13,608 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5115 Valid, 6037 Invalid, 5855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 5761 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-11-24 00:25:13,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123124 states. [2024-11-24 00:25:14,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123124 to 20398. [2024-11-24 00:25:14,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20398 states, 20397 states have (on average 1.291856645585135) internal successors, (26350), 20397 states have internal predecessors, (26350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:25:14,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20398 states to 20398 states and 26350 transitions. [2024-11-24 00:25:14,463 INFO L78 Accepts]: Start accepts. Automaton has 20398 states and 26350 transitions. Word has length 94 [2024-11-24 00:25:14,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:25:14,464 INFO L471 AbstractCegarLoop]: Abstraction has 20398 states and 26350 transitions. [2024-11-24 00:25:14,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 7.375) internal successors, (236), 31 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:25:14,464 INFO L276 IsEmpty]: Start isEmpty. Operand 20398 states and 26350 transitions. [2024-11-24 00:25:14,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-24 00:25:14,473 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:25:14,473 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 00:25:14,485 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 00:25:14,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:25:14,675 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:25:14,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:25:14,676 INFO L85 PathProgramCache]: Analyzing trace with hash 225914628, now seen corresponding path program 1 times [2024-11-24 00:25:14,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:25:14,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762432117] [2024-11-24 00:25:14,676 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:25:14,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:25:14,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:25:15,105 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:25:15,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:25:15,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762432117] [2024-11-24 00:25:15,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762432117] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:25:15,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1515131706] [2024-11-24 00:25:15,106 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:25:15,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:25:15,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:25:15,108 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:25:15,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 00:25:15,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:25:15,273 INFO L256 TraceCheckSpWp]: Trace formula consists of 431 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-24 00:25:15,276 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:25:16,434 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:25:16,434 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:25:17,484 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:25:17,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1515131706] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:25:17,485 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:25:17,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 13, 13] total 29 [2024-11-24 00:25:17,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449807859] [2024-11-24 00:25:17,485 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:25:17,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-24 00:25:17,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:25:17,486 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-24 00:25:17,486 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=756, Unknown=0, NotChecked=0, Total=870 [2024-11-24 00:25:17,487 INFO L87 Difference]: Start difference. First operand 20398 states and 26350 transitions. Second operand has 30 states, 30 states have (on average 8.133333333333333) internal successors, (244), 29 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:25:32,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:25:32,942 INFO L93 Difference]: Finished difference Result 154065 states and 196001 transitions. [2024-11-24 00:25:32,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 202 states. [2024-11-24 00:25:32,942 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 8.133333333333333) internal successors, (244), 29 states have internal predecessors, (244), 0 states have call successors, (0), 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 94 [2024-11-24 00:25:32,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:25:33,231 INFO L225 Difference]: With dead ends: 154065 [2024-11-24 00:25:33,231 INFO L226 Difference]: Without dead ends: 143475 [2024-11-24 00:25:33,265 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 394 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 227 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20968 ImplicationChecksByTransitivity, 11.4s TimeCoverageRelationStatistics Valid=7450, Invalid=44762, Unknown=0, NotChecked=0, Total=52212 [2024-11-24 00:25:33,265 INFO L435 NwaCegarLoop]: 332 mSDtfsCounter, 9468 mSDsluCounter, 5658 mSDsCounter, 0 mSdLazyCounter, 5689 mSolverCounterSat, 155 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9468 SdHoareTripleChecker+Valid, 5990 SdHoareTripleChecker+Invalid, 5844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 155 IncrementalHoareTripleChecker+Valid, 5689 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-24 00:25:33,266 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9468 Valid, 5990 Invalid, 5844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [155 Valid, 5689 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-24 00:25:33,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143475 states. [2024-11-24 00:25:34,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143475 to 43404. [2024-11-24 00:25:34,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43404 states, 43403 states have (on average 1.291154989286455) internal successors, (56040), 43403 states have internal predecessors, (56040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:25:34,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43404 states to 43404 states and 56040 transitions. [2024-11-24 00:25:34,353 INFO L78 Accepts]: Start accepts. Automaton has 43404 states and 56040 transitions. Word has length 94 [2024-11-24 00:25:34,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:25:34,353 INFO L471 AbstractCegarLoop]: Abstraction has 43404 states and 56040 transitions. [2024-11-24 00:25:34,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 8.133333333333333) internal successors, (244), 29 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:25:34,354 INFO L276 IsEmpty]: Start isEmpty. Operand 43404 states and 56040 transitions. [2024-11-24 00:25:34,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-24 00:25:34,362 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:25:34,363 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 00:25:34,373 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-24 00:25:34,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:25:34,567 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:25:34,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:25:34,568 INFO L85 PathProgramCache]: Analyzing trace with hash 1360167634, now seen corresponding path program 1 times [2024-11-24 00:25:34,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:25:34,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669140736] [2024-11-24 00:25:34,568 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:25:34,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:25:34,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:25:34,910 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:25:34,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:25:34,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669140736] [2024-11-24 00:25:34,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669140736] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:25:34,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:25:34,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 00:25:34,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144698562] [2024-11-24 00:25:34,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:25:34,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 00:25:34,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:25:34,914 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 00:25:34,914 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:25:34,914 INFO L87 Difference]: Start difference. First operand 43404 states and 56040 transitions. Second operand has 10 states, 10 states have (on average 9.4) internal successors, (94), 9 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:25:35,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:25:35,897 INFO L93 Difference]: Finished difference Result 91455 states and 117714 transitions. [2024-11-24 00:25:35,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-24 00:25:35,898 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.4) internal successors, (94), 9 states have internal predecessors, (94), 0 states have call successors, (0), 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 94 [2024-11-24 00:25:35,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:25:35,967 INFO L225 Difference]: With dead ends: 91455 [2024-11-24 00:25:35,967 INFO L226 Difference]: Without dead ends: 73476 [2024-11-24 00:25:35,989 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=135, Invalid=371, Unknown=0, NotChecked=0, Total=506 [2024-11-24 00:25:35,990 INFO L435 NwaCegarLoop]: 160 mSDtfsCounter, 1173 mSDsluCounter, 642 mSDsCounter, 0 mSdLazyCounter, 640 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1173 SdHoareTripleChecker+Valid, 802 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 00:25:35,990 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1173 Valid, 802 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 640 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 00:25:36,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73476 states. [2024-11-24 00:25:36,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73476 to 64177. [2024-11-24 00:25:36,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64177 states, 64176 states have (on average 1.2908563949139866) internal successors, (82842), 64176 states have internal predecessors, (82842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:25:36,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64177 states to 64177 states and 82842 transitions. [2024-11-24 00:25:36,814 INFO L78 Accepts]: Start accepts. Automaton has 64177 states and 82842 transitions. Word has length 94 [2024-11-24 00:25:36,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:25:36,814 INFO L471 AbstractCegarLoop]: Abstraction has 64177 states and 82842 transitions. [2024-11-24 00:25:36,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.4) internal successors, (94), 9 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:25:36,815 INFO L276 IsEmpty]: Start isEmpty. Operand 64177 states and 82842 transitions. [2024-11-24 00:25:36,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-24 00:25:36,825 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:25:36,825 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 00:25:36,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-24 00:25:36,826 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:25:36,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:25:36,826 INFO L85 PathProgramCache]: Analyzing trace with hash 284791237, now seen corresponding path program 1 times [2024-11-24 00:25:36,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:25:36,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620332137] [2024-11-24 00:25:36,827 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:25:36,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:25:36,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:25:36,878 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-24 00:25:36,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:25:36,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620332137] [2024-11-24 00:25:36,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620332137] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:25:36,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:25:36,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:25:36,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958128706] [2024-11-24 00:25:36,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:25:36,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:25:36,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:25:36,880 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:25:36,880 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:25:36,880 INFO L87 Difference]: Start difference. First operand 64177 states and 82842 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:25:37,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:25:37,278 INFO L93 Difference]: Finished difference Result 125873 states and 162815 transitions. [2024-11-24 00:25:37,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:25:37,279 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 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 95 [2024-11-24 00:25:37,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:25:37,369 INFO L225 Difference]: With dead ends: 125873 [2024-11-24 00:25:37,369 INFO L226 Difference]: Without dead ends: 63533 [2024-11-24 00:25:37,401 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:25:37,402 INFO L435 NwaCegarLoop]: 136 mSDtfsCounter, 159 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:25:37,402 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 202 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:25:37,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63533 states. [2024-11-24 00:25:38,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63533 to 63533. [2024-11-24 00:25:38,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63533 states, 63532 states have (on average 1.2785525404520557) internal successors, (81229), 63532 states have internal predecessors, (81229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:25:39,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63533 states to 63533 states and 81229 transitions. [2024-11-24 00:25:39,010 INFO L78 Accepts]: Start accepts. Automaton has 63533 states and 81229 transitions. Word has length 95 [2024-11-24 00:25:39,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:25:39,011 INFO L471 AbstractCegarLoop]: Abstraction has 63533 states and 81229 transitions. [2024-11-24 00:25:39,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:25:39,011 INFO L276 IsEmpty]: Start isEmpty. Operand 63533 states and 81229 transitions. [2024-11-24 00:25:39,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-24 00:25:39,028 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:25:39,028 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 00:25:39,028 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-24 00:25:39,028 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:25:39,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:25:39,029 INFO L85 PathProgramCache]: Analyzing trace with hash 2024837326, now seen corresponding path program 1 times [2024-11-24 00:25:39,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:25:39,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348637615] [2024-11-24 00:25:39,029 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:25:39,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:25:39,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:25:39,273 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:25:39,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:25:39,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348637615] [2024-11-24 00:25:39,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348637615] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:25:39,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [102370314] [2024-11-24 00:25:39,274 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:25:39,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:25:39,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:25:39,276 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:25:39,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-24 00:25:39,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:25:39,491 INFO L256 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-24 00:25:39,498 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:25:39,685 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:25:39,685 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:25:39,941 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:25:39,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [102370314] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:25:39,941 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:25:39,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2024-11-24 00:25:39,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101795870] [2024-11-24 00:25:39,941 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:25:39,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 00:25:39,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:25:39,942 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 00:25:39,943 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:25:39,943 INFO L87 Difference]: Start difference. First operand 63533 states and 81229 transitions. Second operand has 8 states, 8 states have (on average 23.0) internal successors, (184), 8 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:25:40,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:25:40,473 INFO L93 Difference]: Finished difference Result 180965 states and 229915 transitions. [2024-11-24 00:25:40,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:25:40,474 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 23.0) internal successors, (184), 8 states have internal predecessors, (184), 0 states have call successors, (0), 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 95 [2024-11-24 00:25:40,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:25:40,608 INFO L225 Difference]: With dead ends: 180965 [2024-11-24 00:25:40,608 INFO L226 Difference]: Without dead ends: 119466 [2024-11-24 00:25:40,980 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 186 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:25:40,982 INFO L435 NwaCegarLoop]: 266 mSDtfsCounter, 438 mSDsluCounter, 700 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 966 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:25:40,982 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [438 Valid, 966 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:25:41,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119466 states. [2024-11-24 00:25:42,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119466 to 93371. [2024-11-24 00:25:42,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93371 states, 93370 states have (on average 1.2727535611009961) internal successors, (118837), 93370 states have internal predecessors, (118837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:25:42,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93371 states to 93371 states and 118837 transitions. [2024-11-24 00:25:42,258 INFO L78 Accepts]: Start accepts. Automaton has 93371 states and 118837 transitions. Word has length 95 [2024-11-24 00:25:42,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:25:42,258 INFO L471 AbstractCegarLoop]: Abstraction has 93371 states and 118837 transitions. [2024-11-24 00:25:42,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 23.0) internal successors, (184), 8 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:25:42,259 INFO L276 IsEmpty]: Start isEmpty. Operand 93371 states and 118837 transitions. [2024-11-24 00:25:42,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-24 00:25:42,269 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:25:42,269 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 00:25:42,276 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-24 00:25:42,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:25:42,470 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:25:42,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:25:42,471 INFO L85 PathProgramCache]: Analyzing trace with hash -871075362, now seen corresponding path program 1 times [2024-11-24 00:25:42,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:25:42,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819810050] [2024-11-24 00:25:42,471 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:25:42,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:25:42,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:25:42,534 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-24 00:25:42,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:25:42,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819810050] [2024-11-24 00:25:42,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819810050] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:25:42,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:25:42,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:25:42,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723445704] [2024-11-24 00:25:42,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:25:42,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:25:42,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:25:42,536 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:25:42,536 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:25:42,536 INFO L87 Difference]: Start difference. First operand 93371 states and 118837 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:25:43,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:25:43,349 INFO L93 Difference]: Finished difference Result 173529 states and 221284 transitions. [2024-11-24 00:25:43,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:25:43,350 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 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 102 [2024-11-24 00:25:43,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:25:43,435 INFO L225 Difference]: With dead ends: 173529 [2024-11-24 00:25:43,435 INFO L226 Difference]: Without dead ends: 81437 [2024-11-24 00:25:43,465 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:25:43,465 INFO L435 NwaCegarLoop]: 136 mSDtfsCounter, 152 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:25:43,465 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 177 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:25:43,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81437 states. [2024-11-24 00:25:44,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81437 to 79646. [2024-11-24 00:25:44,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79646 states, 79645 states have (on average 1.2567267248414842) internal successors, (100092), 79645 states have internal predecessors, (100092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:25:44,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79646 states to 79646 states and 100092 transitions. [2024-11-24 00:25:44,542 INFO L78 Accepts]: Start accepts. Automaton has 79646 states and 100092 transitions. Word has length 102 [2024-11-24 00:25:44,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:25:44,543 INFO L471 AbstractCegarLoop]: Abstraction has 79646 states and 100092 transitions. [2024-11-24 00:25:44,543 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:25:44,543 INFO L276 IsEmpty]: Start isEmpty. Operand 79646 states and 100092 transitions. [2024-11-24 00:25:44,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-24 00:25:44,554 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:25:44,554 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:25:44,554 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-24 00:25:44,555 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:25:44,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:25:44,555 INFO L85 PathProgramCache]: Analyzing trace with hash 329626231, now seen corresponding path program 1 times [2024-11-24 00:25:44,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:25:44,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602861852] [2024-11-24 00:25:44,555 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:25:44,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:25:44,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:25:44,646 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:25:44,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:25:44,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602861852] [2024-11-24 00:25:44,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602861852] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:25:44,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [308321156] [2024-11-24 00:25:44,647 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:25:44,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:25:44,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:25:44,650 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:25:44,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-24 00:25:45,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:25:45,076 INFO L256 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-24 00:25:45,079 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:25:45,420 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:25:45,420 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:25:45,611 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:25:45,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [308321156] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:25:45,612 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:25:45,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 14 [2024-11-24 00:25:45,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835616956] [2024-11-24 00:25:45,612 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:25:45,613 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-24 00:25:45,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:25:45,614 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-24 00:25:45,614 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2024-11-24 00:25:45,614 INFO L87 Difference]: Start difference. First operand 79646 states and 100092 transitions. Second operand has 14 states, 14 states have (on average 19.642857142857142) internal successors, (275), 14 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) [2024-11-24 00:25:46,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:25:46,310 INFO L93 Difference]: Finished difference Result 163383 states and 204266 transitions. [2024-11-24 00:25:46,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 00:25:46,310 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 19.642857142857142) internal successors, (275), 14 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 103 [2024-11-24 00:25:46,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:25:46,408 INFO L225 Difference]: With dead ends: 163383 [2024-11-24 00:25:46,408 INFO L226 Difference]: Without dead ends: 100827 [2024-11-24 00:25:46,441 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 199 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2024-11-24 00:25:46,442 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 1483 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1483 SdHoareTripleChecker+Valid, 660 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:25:46,442 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1483 Valid, 660 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:25:46,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100827 states. [2024-11-24 00:25:47,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100827 to 84490. [2024-11-24 00:25:47,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84490 states, 84489 states have (on average 1.250103563777533) internal successors, (105620), 84489 states have internal predecessors, (105620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:25:47,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84490 states to 84490 states and 105620 transitions. [2024-11-24 00:25:47,678 INFO L78 Accepts]: Start accepts. Automaton has 84490 states and 105620 transitions. Word has length 103 [2024-11-24 00:25:47,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:25:47,678 INFO L471 AbstractCegarLoop]: Abstraction has 84490 states and 105620 transitions. [2024-11-24 00:25:47,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 19.642857142857142) internal successors, (275), 14 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) [2024-11-24 00:25:47,678 INFO L276 IsEmpty]: Start isEmpty. Operand 84490 states and 105620 transitions. [2024-11-24 00:25:47,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-24 00:25:47,691 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:25:47,691 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:25:47,698 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-24 00:25:47,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:25:47,892 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:25:47,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:25:47,892 INFO L85 PathProgramCache]: Analyzing trace with hash 445467963, now seen corresponding path program 1 times [2024-11-24 00:25:47,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:25:47,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097426932] [2024-11-24 00:25:47,893 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:25:47,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:25:47,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:25:48,025 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:25:48,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:25:48,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097426932] [2024-11-24 00:25:48,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097426932] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:25:48,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:25:48,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:25:48,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117865251] [2024-11-24 00:25:48,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:25:48,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:25:48,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:25:48,028 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:25:48,028 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:25:48,028 INFO L87 Difference]: Start difference. First operand 84490 states and 105620 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:25:48,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:25:48,682 INFO L93 Difference]: Finished difference Result 165160 states and 206333 transitions. [2024-11-24 00:25:48,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:25:48,682 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 0 states have call successors, (0), 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 104 [2024-11-24 00:25:48,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:25:48,773 INFO L225 Difference]: With dead ends: 165160 [2024-11-24 00:25:48,773 INFO L226 Difference]: Without dead ends: 81829 [2024-11-24 00:25:48,812 INFO L434 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 [2024-11-24 00:25:48,813 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 355 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:25:48,814 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [355 Valid, 360 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:25:48,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81829 states. [2024-11-24 00:25:50,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81829 to 77081. [2024-11-24 00:25:50,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77081 states, 77080 states have (on average 1.2280098598858329) internal successors, (94655), 77080 states have internal predecessors, (94655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:25:50,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77081 states to 77081 states and 94655 transitions. [2024-11-24 00:25:50,270 INFO L78 Accepts]: Start accepts. Automaton has 77081 states and 94655 transitions. Word has length 104 [2024-11-24 00:25:50,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:25:50,271 INFO L471 AbstractCegarLoop]: Abstraction has 77081 states and 94655 transitions. [2024-11-24 00:25:50,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:25:50,271 INFO L276 IsEmpty]: Start isEmpty. Operand 77081 states and 94655 transitions. [2024-11-24 00:25:50,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-24 00:25:50,280 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:25:50,280 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:25:50,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-24 00:25:50,280 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:25:50,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:25:50,281 INFO L85 PathProgramCache]: Analyzing trace with hash -2047133199, now seen corresponding path program 1 times [2024-11-24 00:25:50,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:25:50,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479371740] [2024-11-24 00:25:50,281 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:25:50,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:25:50,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:25:50,381 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:25:50,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:25:50,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479371740] [2024-11-24 00:25:50,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479371740] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:25:50,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [248109213] [2024-11-24 00:25:50,382 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:25:50,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:25:50,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:25:50,384 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:25:50,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-24 00:25:50,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:25:50,568 INFO L256 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-24 00:25:50,570 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:25:50,872 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:25:50,872 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:25:51,031 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:25:51,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [248109213] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:25:51,032 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:25:51,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 14 [2024-11-24 00:25:51,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321799478] [2024-11-24 00:25:51,032 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:25:51,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-24 00:25:51,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:25:51,033 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-24 00:25:51,033 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2024-11-24 00:25:51,033 INFO L87 Difference]: Start difference. First operand 77081 states and 94655 transitions. Second operand has 14 states, 14 states have (on average 20.428571428571427) internal successors, (286), 14 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:25:51,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:25:51,820 INFO L93 Difference]: Finished difference Result 173057 states and 211454 transitions. [2024-11-24 00:25:51,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 00:25:51,820 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 20.428571428571427) internal successors, (286), 14 states have internal predecessors, (286), 0 states have call successors, (0), 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 104 [2024-11-24 00:25:51,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:25:51,929 INFO L225 Difference]: With dead ends: 173057 [2024-11-24 00:25:51,929 INFO L226 Difference]: Without dead ends: 97577 [2024-11-24 00:25:51,965 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 201 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2024-11-24 00:25:51,965 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 1236 mSDsluCounter, 684 mSDsCounter, 0 mSdLazyCounter, 563 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1236 SdHoareTripleChecker+Valid, 804 SdHoareTripleChecker+Invalid, 591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:25:51,965 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1236 Valid, 804 Invalid, 591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 563 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:25:52,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97577 states. [2024-11-24 00:25:53,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97577 to 84578. [2024-11-24 00:25:53,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84578 states, 84577 states have (on average 1.2234058904903224) internal successors, (103472), 84577 states have internal predecessors, (103472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:25:53,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84578 states to 84578 states and 103472 transitions. [2024-11-24 00:25:53,470 INFO L78 Accepts]: Start accepts. Automaton has 84578 states and 103472 transitions. Word has length 104 [2024-11-24 00:25:53,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:25:53,471 INFO L471 AbstractCegarLoop]: Abstraction has 84578 states and 103472 transitions. [2024-11-24 00:25:53,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 20.428571428571427) internal successors, (286), 14 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:25:53,471 INFO L276 IsEmpty]: Start isEmpty. Operand 84578 states and 103472 transitions. [2024-11-24 00:25:53,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-24 00:25:53,491 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:25:53,491 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:25:53,502 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-24 00:25:53,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-11-24 00:25:53,691 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:25:53,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:25:53,692 INFO L85 PathProgramCache]: Analyzing trace with hash -1136486780, now seen corresponding path program 1 times [2024-11-24 00:25:53,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:25:53,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194792301] [2024-11-24 00:25:53,692 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:25:53,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:25:53,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:25:53,762 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:25:53,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:25:53,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194792301] [2024-11-24 00:25:53,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194792301] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:25:53,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:25:53,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:25:53,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839345793] [2024-11-24 00:25:53,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:25:53,763 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:25:53,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:25:53,764 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:25:53,764 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:25:53,764 INFO L87 Difference]: Start difference. First operand 84578 states and 103472 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:25:54,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:25:54,365 INFO L93 Difference]: Finished difference Result 157569 states and 192787 transitions. [2024-11-24 00:25:54,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:25:54,365 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2024-11-24 00:25:54,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:25:54,543 INFO L225 Difference]: With dead ends: 157569 [2024-11-24 00:25:54,543 INFO L226 Difference]: Without dead ends: 120091 [2024-11-24 00:25:54,578 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:25:54,579 INFO L435 NwaCegarLoop]: 277 mSDtfsCounter, 93 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:25:54,579 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 428 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:25:54,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120091 states. [2024-11-24 00:25:55,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120091 to 83742. [2024-11-24 00:25:55,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83742 states, 83741 states have (on average 1.2152231284555952) internal successors, (101764), 83741 states have internal predecessors, (101764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:25:56,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83742 states to 83742 states and 101764 transitions. [2024-11-24 00:25:56,426 INFO L78 Accepts]: Start accepts. Automaton has 83742 states and 101764 transitions. Word has length 106 [2024-11-24 00:25:56,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:25:56,426 INFO L471 AbstractCegarLoop]: Abstraction has 83742 states and 101764 transitions. [2024-11-24 00:25:56,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:25:56,426 INFO L276 IsEmpty]: Start isEmpty. Operand 83742 states and 101764 transitions. [2024-11-24 00:25:56,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-24 00:25:56,435 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:25:56,435 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:25:56,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-24 00:25:56,436 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:25:56,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:25:56,436 INFO L85 PathProgramCache]: Analyzing trace with hash 1155971345, now seen corresponding path program 1 times [2024-11-24 00:25:56,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:25:56,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816295858] [2024-11-24 00:25:56,437 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:25:56,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:25:56,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:25:56,503 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-24 00:25:56,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:25:56,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816295858] [2024-11-24 00:25:56,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816295858] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:25:56,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:25:56,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:25:56,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044366499] [2024-11-24 00:25:56,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:25:56,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:25:56,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:25:56,504 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:25:56,504 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:25:56,504 INFO L87 Difference]: Start difference. First operand 83742 states and 101764 transitions. Second operand has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:25:56,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:25:56,897 INFO L93 Difference]: Finished difference Result 149450 states and 180887 transitions. [2024-11-24 00:25:56,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:25:56,898 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 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 107 [2024-11-24 00:25:56,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:25:57,018 INFO L225 Difference]: With dead ends: 149450 [2024-11-24 00:25:57,018 INFO L226 Difference]: Without dead ends: 120205 [2024-11-24 00:25:57,047 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:25:57,047 INFO L435 NwaCegarLoop]: 191 mSDtfsCounter, 116 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:25:57,048 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 446 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:25:57,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120205 states. [2024-11-24 00:25:58,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120205 to 96463. [2024-11-24 00:25:58,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96463 states, 96462 states have (on average 1.215597852003898) internal successors, (117259), 96462 states have internal predecessors, (117259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:25:58,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96463 states to 96463 states and 117259 transitions. [2024-11-24 00:25:58,245 INFO L78 Accepts]: Start accepts. Automaton has 96463 states and 117259 transitions. Word has length 107 [2024-11-24 00:25:58,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:25:58,245 INFO L471 AbstractCegarLoop]: Abstraction has 96463 states and 117259 transitions. [2024-11-24 00:25:58,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:25:58,245 INFO L276 IsEmpty]: Start isEmpty. Operand 96463 states and 117259 transitions. [2024-11-24 00:25:58,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-24 00:25:58,254 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:25:58,255 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:25:58,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-24 00:25:58,255 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:25:58,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:25:58,255 INFO L85 PathProgramCache]: Analyzing trace with hash 1792533260, now seen corresponding path program 1 times [2024-11-24 00:25:58,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:25:58,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867079100] [2024-11-24 00:25:58,256 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:25:58,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:25:58,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:25:59,432 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:25:59,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:25:59,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867079100] [2024-11-24 00:25:59,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867079100] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:25:59,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [5665684] [2024-11-24 00:25:59,433 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:25:59,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:25:59,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:25:59,436 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:25:59,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-24 00:25:59,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:25:59,648 INFO L256 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-24 00:25:59,654 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:26:00,995 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:26:00,995 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:26:02,256 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:26:02,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [5665684] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:26:02,256 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:26:02,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 42 [2024-11-24 00:26:02,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172229645] [2024-11-24 00:26:02,256 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:26:02,257 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-11-24 00:26:02,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:26:02,258 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-11-24 00:26:02,258 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=1592, Unknown=0, NotChecked=0, Total=1722 [2024-11-24 00:26:02,258 INFO L87 Difference]: Start difference. First operand 96463 states and 117259 transitions. Second operand has 42 states, 42 states have (on average 7.071428571428571) internal successors, (297), 42 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:26:22,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:26:22,988 INFO L93 Difference]: Finished difference Result 278374 states and 335577 transitions. [2024-11-24 00:26:22,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 176 states. [2024-11-24 00:26:22,989 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 7.071428571428571) internal successors, (297), 42 states have internal predecessors, (297), 0 states have call successors, (0), 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 107 [2024-11-24 00:26:22,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:26:23,260 INFO L225 Difference]: With dead ends: 278374 [2024-11-24 00:26:23,261 INFO L226 Difference]: Without dead ends: 255559 [2024-11-24 00:26:23,310 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 402 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 214 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16127 ImplicationChecksByTransitivity, 15.6s TimeCoverageRelationStatistics Valid=6404, Invalid=40036, Unknown=0, NotChecked=0, Total=46440 [2024-11-24 00:26:23,311 INFO L435 NwaCegarLoop]: 228 mSDtfsCounter, 6895 mSDsluCounter, 6722 mSDsCounter, 0 mSdLazyCounter, 7455 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6895 SdHoareTripleChecker+Valid, 6950 SdHoareTripleChecker+Invalid, 7598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 7455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:26:23,311 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6895 Valid, 6950 Invalid, 7598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 7455 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2024-11-24 00:26:23,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255559 states. [2024-11-24 00:26:25,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255559 to 96507. [2024-11-24 00:26:25,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96507 states, 96506 states have (on average 1.2156238990321846) internal successors, (117315), 96506 states have internal predecessors, (117315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:26:25,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96507 states to 96507 states and 117315 transitions. [2024-11-24 00:26:25,444 INFO L78 Accepts]: Start accepts. Automaton has 96507 states and 117315 transitions. Word has length 107 [2024-11-24 00:26:25,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:26:25,445 INFO L471 AbstractCegarLoop]: Abstraction has 96507 states and 117315 transitions. [2024-11-24 00:26:25,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 7.071428571428571) internal successors, (297), 42 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:26:25,445 INFO L276 IsEmpty]: Start isEmpty. Operand 96507 states and 117315 transitions. [2024-11-24 00:26:25,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-24 00:26:25,453 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:26:25,453 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:26:25,460 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-24 00:26:25,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2024-11-24 00:26:25,654 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:26:25,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:26:25,654 INFO L85 PathProgramCache]: Analyzing trace with hash -340745030, now seen corresponding path program 1 times [2024-11-24 00:26:25,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:26:25,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116626698] [2024-11-24 00:26:25,654 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:26:25,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:26:25,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:26:25,738 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-24 00:26:25,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:26:25,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116626698] [2024-11-24 00:26:25,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116626698] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:26:25,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:26:25,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:26:25,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175472744] [2024-11-24 00:26:25,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:26:25,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:26:25,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:26:25,739 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:26:25,739 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:26:25,739 INFO L87 Difference]: Start difference. First operand 96507 states and 117315 transitions. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:26:26,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:26:26,382 INFO L93 Difference]: Finished difference Result 159061 states and 193264 transitions. [2024-11-24 00:26:26,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:26:26,383 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 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 107 [2024-11-24 00:26:26,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:26:26,591 INFO L225 Difference]: With dead ends: 159061 [2024-11-24 00:26:26,591 INFO L226 Difference]: Without dead ends: 129387 [2024-11-24 00:26:26,636 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:26:26,637 INFO L435 NwaCegarLoop]: 184 mSDtfsCounter, 130 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:26:26,637 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 436 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:26:26,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129387 states. [2024-11-24 00:26:28,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129387 to 95463. [2024-11-24 00:26:28,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95463 states, 95462 states have (on average 1.2164421445182376) internal successors, (116124), 95462 states have internal predecessors, (116124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:26:28,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95463 states to 95463 states and 116124 transitions. [2024-11-24 00:26:28,210 INFO L78 Accepts]: Start accepts. Automaton has 95463 states and 116124 transitions. Word has length 107 [2024-11-24 00:26:28,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:26:28,210 INFO L471 AbstractCegarLoop]: Abstraction has 95463 states and 116124 transitions. [2024-11-24 00:26:28,210 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:26:28,210 INFO L276 IsEmpty]: Start isEmpty. Operand 95463 states and 116124 transitions. [2024-11-24 00:26:28,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-24 00:26:28,673 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:26:28,673 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:26:28,673 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-11-24 00:26:28,673 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:26:28,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:26:28,674 INFO L85 PathProgramCache]: Analyzing trace with hash 1318476383, now seen corresponding path program 1 times [2024-11-24 00:26:28,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:26:28,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158847884] [2024-11-24 00:26:28,674 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:26:28,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:26:28,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:26:30,147 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:26:30,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:26:30,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158847884] [2024-11-24 00:26:30,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158847884] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:26:30,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [471451177] [2024-11-24 00:26:30,148 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:26:30,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:26:30,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:26:30,150 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:26:30,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-24 00:26:30,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:26:30,410 INFO L256 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-24 00:26:30,413 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:26:31,778 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:26:31,778 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:26:31,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [471451177] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:26:31,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:26:31,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [21] total 33 [2024-11-24 00:26:31,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683508868] [2024-11-24 00:26:31,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:26:31,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-24 00:26:31,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:26:31,779 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-24 00:26:31,780 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=961, Unknown=0, NotChecked=0, Total=1056 [2024-11-24 00:26:31,780 INFO L87 Difference]: Start difference. First operand 95463 states and 116124 transitions. Second operand has 14 states, 14 states have (on average 7.642857142857143) internal successors, (107), 14 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:26:33,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:26:33,321 INFO L93 Difference]: Finished difference Result 122044 states and 148512 transitions. [2024-11-24 00:26:33,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-24 00:26:33,322 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.642857142857143) internal successors, (107), 14 states have internal predecessors, (107), 0 states have call successors, (0), 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 107 [2024-11-24 00:26:33,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:26:33,462 INFO L225 Difference]: With dead ends: 122044 [2024-11-24 00:26:33,462 INFO L226 Difference]: Without dead ends: 104319 [2024-11-24 00:26:33,493 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=156, Invalid=1404, Unknown=0, NotChecked=0, Total=1560 [2024-11-24 00:26:33,494 INFO L435 NwaCegarLoop]: 279 mSDtfsCounter, 827 mSDsluCounter, 2249 mSDsCounter, 0 mSdLazyCounter, 654 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 827 SdHoareTripleChecker+Valid, 2528 SdHoareTripleChecker+Invalid, 659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 654 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:26:33,494 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [827 Valid, 2528 Invalid, 659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 654 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 00:26:33,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104319 states. [2024-11-24 00:26:34,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104319 to 103443. [2024-11-24 00:26:34,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103443 states, 103442 states have (on average 1.2157150867152606) internal successors, (125756), 103442 states have internal predecessors, (125756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:26:34,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103443 states to 103443 states and 125756 transitions. [2024-11-24 00:26:34,982 INFO L78 Accepts]: Start accepts. Automaton has 103443 states and 125756 transitions. Word has length 107 [2024-11-24 00:26:34,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:26:34,982 INFO L471 AbstractCegarLoop]: Abstraction has 103443 states and 125756 transitions. [2024-11-24 00:26:34,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.642857142857143) internal successors, (107), 14 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:26:34,983 INFO L276 IsEmpty]: Start isEmpty. Operand 103443 states and 125756 transitions. [2024-11-24 00:26:34,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-24 00:26:34,990 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:26:34,990 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:26:34,998 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-24 00:26:35,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:26:35,193 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:26:35,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:26:35,194 INFO L85 PathProgramCache]: Analyzing trace with hash 1065392477, now seen corresponding path program 1 times [2024-11-24 00:26:35,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:26:35,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492074417] [2024-11-24 00:26:35,195 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:26:35,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:26:35,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:26:36,175 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:26:36,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:26:36,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492074417] [2024-11-24 00:26:36,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492074417] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:26:36,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:26:36,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-24 00:26:36,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443765475] [2024-11-24 00:26:36,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:26:36,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-24 00:26:36,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:26:36,178 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-24 00:26:36,179 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=182, Unknown=0, NotChecked=0, Total=210 [2024-11-24 00:26:36,179 INFO L87 Difference]: Start difference. First operand 103443 states and 125756 transitions. Second operand has 15 states, 15 states have (on average 7.133333333333334) internal successors, (107), 14 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:26:38,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:26:38,345 INFO L93 Difference]: Finished difference Result 182626 states and 221489 transitions. [2024-11-24 00:26:38,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-24 00:26:38,346 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.133333333333334) internal successors, (107), 14 states have internal predecessors, (107), 0 states have call successors, (0), 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 107 [2024-11-24 00:26:38,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:26:38,517 INFO L225 Difference]: With dead ends: 182626 [2024-11-24 00:26:38,517 INFO L226 Difference]: Without dead ends: 169841 [2024-11-24 00:26:38,549 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 407 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=372, Invalid=1608, Unknown=0, NotChecked=0, Total=1980 [2024-11-24 00:26:38,550 INFO L435 NwaCegarLoop]: 198 mSDtfsCounter, 1495 mSDsluCounter, 1723 mSDsCounter, 0 mSdLazyCounter, 1684 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1495 SdHoareTripleChecker+Valid, 1921 SdHoareTripleChecker+Invalid, 1697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1684 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:26:38,550 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1495 Valid, 1921 Invalid, 1697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1684 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-24 00:26:38,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169841 states. [2024-11-24 00:26:39,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169841 to 103309. [2024-11-24 00:26:39,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103309 states, 103308 states have (on average 1.2158109730127387) internal successors, (125603), 103308 states have internal predecessors, (125603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:26:40,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103309 states to 103309 states and 125603 transitions. [2024-11-24 00:26:40,041 INFO L78 Accepts]: Start accepts. Automaton has 103309 states and 125603 transitions. Word has length 107 [2024-11-24 00:26:40,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:26:40,042 INFO L471 AbstractCegarLoop]: Abstraction has 103309 states and 125603 transitions. [2024-11-24 00:26:40,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 7.133333333333334) internal successors, (107), 14 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:26:40,042 INFO L276 IsEmpty]: Start isEmpty. Operand 103309 states and 125603 transitions. [2024-11-24 00:26:40,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-24 00:26:40,053 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:26:40,053 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 00:26:40,053 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-11-24 00:26:40,053 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:26:40,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:26:40,053 INFO L85 PathProgramCache]: Analyzing trace with hash 395012411, now seen corresponding path program 1 times [2024-11-24 00:26:40,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:26:40,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341102428] [2024-11-24 00:26:40,054 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:26:40,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:26:40,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:26:40,347 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:26:40,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:26:40,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341102428] [2024-11-24 00:26:40,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341102428] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:26:40,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:26:40,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:26:40,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236003048] [2024-11-24 00:26:40,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:26:40,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:26:40,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:26:40,349 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:26:40,349 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:26:40,349 INFO L87 Difference]: Start difference. First operand 103309 states and 125603 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:26:40,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:26:40,687 INFO L93 Difference]: Finished difference Result 159749 states and 194006 transitions. [2024-11-24 00:26:40,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:26:40,688 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 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 108 [2024-11-24 00:26:40,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:26:40,803 INFO L225 Difference]: With dead ends: 159749 [2024-11-24 00:26:40,803 INFO L226 Difference]: Without dead ends: 117987 [2024-11-24 00:26:40,833 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:26:40,834 INFO L435 NwaCegarLoop]: 273 mSDtfsCounter, 76 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:26:40,834 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 432 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:26:40,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117987 states. [2024-11-24 00:26:42,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117987 to 97462. [2024-11-24 00:26:42,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97462 states, 97461 states have (on average 1.2114179004935308) internal successors, (118066), 97461 states have internal predecessors, (118066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:26:42,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97462 states to 97462 states and 118066 transitions. [2024-11-24 00:26:42,517 INFO L78 Accepts]: Start accepts. Automaton has 97462 states and 118066 transitions. Word has length 108 [2024-11-24 00:26:42,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:26:42,517 INFO L471 AbstractCegarLoop]: Abstraction has 97462 states and 118066 transitions. [2024-11-24 00:26:42,517 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:26:42,518 INFO L276 IsEmpty]: Start isEmpty. Operand 97462 states and 118066 transitions. [2024-11-24 00:26:42,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-24 00:26:42,523 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:26:42,523 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:26:42,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-11-24 00:26:42,523 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:26:42,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:26:42,524 INFO L85 PathProgramCache]: Analyzing trace with hash 1772214580, now seen corresponding path program 1 times [2024-11-24 00:26:42,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:26:42,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539710678] [2024-11-24 00:26:42,524 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:26:42,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:26:42,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:26:43,169 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:26:43,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:26:43,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539710678] [2024-11-24 00:26:43,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539710678] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:26:43,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [983930329] [2024-11-24 00:26:43,170 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:26:43,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:26:43,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:26:43,172 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:26:43,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-24 00:26:43,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:26:43,384 INFO L256 TraceCheckSpWp]: Trace formula consists of 459 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-24 00:26:43,386 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:26:44,883 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:26:44,883 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:26:45,650 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:26:45,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [983930329] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:26:45,650 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:26:45,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15, 14] total 38 [2024-11-24 00:26:45,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190405720] [2024-11-24 00:26:45,650 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:26:45,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-11-24 00:26:45,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:26:45,651 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-11-24 00:26:45,651 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=1276, Unknown=0, NotChecked=0, Total=1406 [2024-11-24 00:26:45,651 INFO L87 Difference]: Start difference. First operand 97462 states and 118066 transitions. Second operand has 38 states, 38 states have (on average 7.131578947368421) internal successors, (271), 38 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) [2024-11-24 00:26:48,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:26:48,186 INFO L93 Difference]: Finished difference Result 185168 states and 224111 transitions. [2024-11-24 00:26:48,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-24 00:26:48,187 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 7.131578947368421) internal successors, (271), 38 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 108 [2024-11-24 00:26:48,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:26:48,344 INFO L225 Difference]: With dead ends: 185168 [2024-11-24 00:26:48,345 INFO L226 Difference]: Without dead ends: 168613 [2024-11-24 00:26:48,380 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 194 SyntacticMatches, 1 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 637 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=571, Invalid=2969, Unknown=0, NotChecked=0, Total=3540 [2024-11-24 00:26:48,380 INFO L435 NwaCegarLoop]: 332 mSDtfsCounter, 2009 mSDsluCounter, 6556 mSDsCounter, 0 mSdLazyCounter, 1765 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2009 SdHoareTripleChecker+Valid, 6888 SdHoareTripleChecker+Invalid, 1796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1765 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:26:48,380 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2009 Valid, 6888 Invalid, 1796 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1765 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-24 00:26:48,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168613 states. [2024-11-24 00:26:49,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168613 to 97447. [2024-11-24 00:26:49,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97447 states, 97446 states have (on average 1.2112862508466227) internal successors, (118035), 97446 states have internal predecessors, (118035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:26:49,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97447 states to 97447 states and 118035 transitions. [2024-11-24 00:26:49,862 INFO L78 Accepts]: Start accepts. Automaton has 97447 states and 118035 transitions. Word has length 108 [2024-11-24 00:26:49,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:26:49,863 INFO L471 AbstractCegarLoop]: Abstraction has 97447 states and 118035 transitions. [2024-11-24 00:26:49,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 7.131578947368421) internal successors, (271), 38 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) [2024-11-24 00:26:49,863 INFO L276 IsEmpty]: Start isEmpty. Operand 97447 states and 118035 transitions. [2024-11-24 00:26:49,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-24 00:26:49,874 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:26:49,874 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:26:49,884 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-24 00:26:50,075 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:26:50,075 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:26:50,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:26:50,075 INFO L85 PathProgramCache]: Analyzing trace with hash -937858265, now seen corresponding path program 1 times [2024-11-24 00:26:50,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:26:50,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406115087] [2024-11-24 00:26:50,076 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:26:50,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:26:50,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:26:50,840 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:26:50,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:26:50,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406115087] [2024-11-24 00:26:50,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406115087] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:26:50,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1197863945] [2024-11-24 00:26:50,841 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:26:50,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:26:50,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:26:50,843 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:26:50,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-24 00:26:51,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:26:51,079 INFO L256 TraceCheckSpWp]: Trace formula consists of 459 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-24 00:26:51,082 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:26:52,872 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:26:52,872 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:26:53,586 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:26:53,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1197863945] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:26:53,586 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:26:53,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15, 12] total 36 [2024-11-24 00:26:53,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400821957] [2024-11-24 00:26:53,586 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:26:53,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-11-24 00:26:53,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:26:53,587 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-11-24 00:26:53,587 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=1135, Unknown=0, NotChecked=0, Total=1260 [2024-11-24 00:26:53,588 INFO L87 Difference]: Start difference. First operand 97447 states and 118035 transitions. Second operand has 36 states, 36 states have (on average 7.472222222222222) internal successors, (269), 36 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) [2024-11-24 00:26:55,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:26:55,658 INFO L93 Difference]: Finished difference Result 179584 states and 217419 transitions. [2024-11-24 00:26:55,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-24 00:26:55,660 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 7.472222222222222) internal successors, (269), 36 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 108 [2024-11-24 00:26:55,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:26:55,776 INFO L225 Difference]: With dead ends: 179584 [2024-11-24 00:26:55,776 INFO L226 Difference]: Without dead ends: 130554 [2024-11-24 00:26:55,804 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 197 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 530 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=487, Invalid=2375, Unknown=0, NotChecked=0, Total=2862 [2024-11-24 00:26:55,804 INFO L435 NwaCegarLoop]: 320 mSDtfsCounter, 1092 mSDsluCounter, 5900 mSDsCounter, 0 mSdLazyCounter, 1643 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1092 SdHoareTripleChecker+Valid, 6220 SdHoareTripleChecker+Invalid, 1660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-24 00:26:55,804 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1092 Valid, 6220 Invalid, 1660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1643 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-24 00:26:55,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130554 states. [2024-11-24 00:26:56,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130554 to 115436. [2024-11-24 00:26:56,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115436 states, 115435 states have (on average 1.2065144886732793) internal successors, (139274), 115435 states have internal predecessors, (139274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:26:57,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115436 states to 115436 states and 139274 transitions. [2024-11-24 00:26:57,088 INFO L78 Accepts]: Start accepts. Automaton has 115436 states and 139274 transitions. Word has length 108 [2024-11-24 00:26:57,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:26:57,088 INFO L471 AbstractCegarLoop]: Abstraction has 115436 states and 139274 transitions. [2024-11-24 00:26:57,088 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 7.472222222222222) internal successors, (269), 36 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) [2024-11-24 00:26:57,088 INFO L276 IsEmpty]: Start isEmpty. Operand 115436 states and 139274 transitions. [2024-11-24 00:26:57,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-24 00:26:57,095 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:26:57,095 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:26:57,102 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-24 00:26:57,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2024-11-24 00:26:57,295 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:26:57,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:26:57,296 INFO L85 PathProgramCache]: Analyzing trace with hash -826380895, now seen corresponding path program 1 times [2024-11-24 00:26:57,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:26:57,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521728527] [2024-11-24 00:26:57,297 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:26:57,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:26:57,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:26:58,146 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:26:58,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:26:58,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521728527] [2024-11-24 00:26:58,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521728527] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:26:58,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1969895539] [2024-11-24 00:26:58,146 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:26:58,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:26:58,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:26:58,148 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:26:58,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-24 00:26:58,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:26:58,370 INFO L256 TraceCheckSpWp]: Trace formula consists of 459 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-24 00:26:58,372 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:26:59,478 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:26:59,478 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:27:00,638 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:27:00,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1969895539] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:27:00,639 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:27:00,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15, 15] total 38 [2024-11-24 00:27:00,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095722144] [2024-11-24 00:27:00,639 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:27:00,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-11-24 00:27:00,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:27:00,640 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-11-24 00:27:00,640 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=1273, Unknown=0, NotChecked=0, Total=1406 [2024-11-24 00:27:00,640 INFO L87 Difference]: Start difference. First operand 115436 states and 139274 transitions. Second operand has 38 states, 38 states have (on average 7.473684210526316) internal successors, (284), 38 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:27:04,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:27:04,202 INFO L93 Difference]: Finished difference Result 163594 states and 196704 transitions. [2024-11-24 00:27:04,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-11-24 00:27:04,202 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 7.473684210526316) internal successors, (284), 38 states have internal predecessors, (284), 0 states have call successors, (0), 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 108 [2024-11-24 00:27:04,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:27:04,343 INFO L225 Difference]: With dead ends: 163594 [2024-11-24 00:27:04,343 INFO L226 Difference]: Without dead ends: 126217 [2024-11-24 00:27:04,380 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 916 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=807, Invalid=4163, Unknown=0, NotChecked=0, Total=4970 [2024-11-24 00:27:04,381 INFO L435 NwaCegarLoop]: 355 mSDtfsCounter, 2259 mSDsluCounter, 6474 mSDsCounter, 0 mSdLazyCounter, 1862 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2259 SdHoareTripleChecker+Valid, 6829 SdHoareTripleChecker+Invalid, 1895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1862 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:27:04,381 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2259 Valid, 6829 Invalid, 1895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1862 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-24 00:27:04,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126217 states. [2024-11-24 00:27:05,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126217 to 112902. [2024-11-24 00:27:05,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112902 states, 112901 states have (on average 1.2035322982081647) internal successors, (135880), 112901 states have internal predecessors, (135880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:27:05,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112902 states to 112902 states and 135880 transitions. [2024-11-24 00:27:05,910 INFO L78 Accepts]: Start accepts. Automaton has 112902 states and 135880 transitions. Word has length 108 [2024-11-24 00:27:05,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:27:05,911 INFO L471 AbstractCegarLoop]: Abstraction has 112902 states and 135880 transitions. [2024-11-24 00:27:05,911 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 7.473684210526316) internal successors, (284), 38 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:27:05,911 INFO L276 IsEmpty]: Start isEmpty. Operand 112902 states and 135880 transitions. [2024-11-24 00:27:05,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-24 00:27:05,917 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:27:05,917 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 00:27:05,925 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-24 00:27:06,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2024-11-24 00:27:06,118 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:27:06,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:27:06,119 INFO L85 PathProgramCache]: Analyzing trace with hash -1068414278, now seen corresponding path program 1 times [2024-11-24 00:27:06,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:27:06,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267803233] [2024-11-24 00:27:06,119 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:27:06,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:27:06,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:27:06,199 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:27:06,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:27:06,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267803233] [2024-11-24 00:27:06,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267803233] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:27:06,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:27:06,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:27:06,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542238602] [2024-11-24 00:27:06,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:27:06,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:27:06,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:27:06,200 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:27:06,200 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:27:06,200 INFO L87 Difference]: Start difference. First operand 112902 states and 135880 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:27:06,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:27:06,635 INFO L93 Difference]: Finished difference Result 212117 states and 254581 transitions. [2024-11-24 00:27:06,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:27:06,636 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 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 109 [2024-11-24 00:27:06,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:27:06,737 INFO L225 Difference]: With dead ends: 212117 [2024-11-24 00:27:06,738 INFO L226 Difference]: Without dead ends: 100429 [2024-11-24 00:27:06,779 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:27:06,780 INFO L435 NwaCegarLoop]: 191 mSDtfsCounter, 74 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:27:06,780 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 326 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:27:06,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100429 states. [2024-11-24 00:27:07,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100429 to 100427. [2024-11-24 00:27:07,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100427 states, 100426 states have (on average 1.1711210244359032) internal successors, (117611), 100426 states have internal predecessors, (117611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:27:07,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100427 states to 100427 states and 117611 transitions. [2024-11-24 00:27:07,989 INFO L78 Accepts]: Start accepts. Automaton has 100427 states and 117611 transitions. Word has length 109 [2024-11-24 00:27:07,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:27:07,989 INFO L471 AbstractCegarLoop]: Abstraction has 100427 states and 117611 transitions. [2024-11-24 00:27:07,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:27:07,989 INFO L276 IsEmpty]: Start isEmpty. Operand 100427 states and 117611 transitions. [2024-11-24 00:27:07,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-24 00:27:07,994 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:27:07,994 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:27:07,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2024-11-24 00:27:07,994 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:27:07,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:27:07,994 INFO L85 PathProgramCache]: Analyzing trace with hash -2090213940, now seen corresponding path program 1 times [2024-11-24 00:27:07,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:27:07,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573623566] [2024-11-24 00:27:07,995 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:27:07,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:27:08,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:27:08,951 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:27:08,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:27:08,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573623566] [2024-11-24 00:27:08,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573623566] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:27:08,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:27:08,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-24 00:27:08,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189215250] [2024-11-24 00:27:08,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:27:08,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-24 00:27:08,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:27:08,952 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-24 00:27:08,952 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=239, Unknown=0, NotChecked=0, Total=272 [2024-11-24 00:27:08,952 INFO L87 Difference]: Start difference. First operand 100427 states and 117611 transitions. Second operand has 17 states, 17 states have (on average 6.411764705882353) internal successors, (109), 17 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:27:10,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:27:10,595 INFO L93 Difference]: Finished difference Result 161513 states and 189602 transitions. [2024-11-24 00:27:10,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-24 00:27:10,595 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.411764705882353) internal successors, (109), 17 states have internal predecessors, (109), 0 states have call successors, (0), 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 109 [2024-11-24 00:27:10,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:27:10,734 INFO L225 Difference]: With dead ends: 161513 [2024-11-24 00:27:10,734 INFO L226 Difference]: Without dead ends: 151865 [2024-11-24 00:27:10,764 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 356 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=359, Invalid=1621, Unknown=0, NotChecked=0, Total=1980 [2024-11-24 00:27:10,764 INFO L435 NwaCegarLoop]: 282 mSDtfsCounter, 1550 mSDsluCounter, 2899 mSDsCounter, 0 mSdLazyCounter, 975 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1550 SdHoareTripleChecker+Valid, 3181 SdHoareTripleChecker+Invalid, 988 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 00:27:10,765 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1550 Valid, 3181 Invalid, 988 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 975 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 00:27:11,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151865 states. [2024-11-24 00:27:12,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151865 to 101612. [2024-11-24 00:27:12,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101612 states, 101611 states have (on average 1.1703752546476267) internal successors, (118923), 101611 states have internal predecessors, (118923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:27:12,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101612 states to 101612 states and 118923 transitions. [2024-11-24 00:27:12,537 INFO L78 Accepts]: Start accepts. Automaton has 101612 states and 118923 transitions. Word has length 109 [2024-11-24 00:27:12,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:27:12,537 INFO L471 AbstractCegarLoop]: Abstraction has 101612 states and 118923 transitions. [2024-11-24 00:27:12,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 6.411764705882353) internal successors, (109), 17 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:27:12,537 INFO L276 IsEmpty]: Start isEmpty. Operand 101612 states and 118923 transitions. [2024-11-24 00:27:12,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-24 00:27:12,548 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:27:12,548 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 00:27:12,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2024-11-24 00:27:12,549 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:27:12,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:27:12,550 INFO L85 PathProgramCache]: Analyzing trace with hash -943937199, now seen corresponding path program 1 times [2024-11-24 00:27:12,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:27:12,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985477453] [2024-11-24 00:27:12,550 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:27:12,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:27:12,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:27:12,695 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:27:12,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:27:12,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985477453] [2024-11-24 00:27:12,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985477453] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:27:12,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:27:12,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:27:12,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272988550] [2024-11-24 00:27:12,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:27:12,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:27:12,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:27:12,699 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:27:12,699 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:27:12,700 INFO L87 Difference]: Start difference. First operand 101612 states and 118923 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:27:13,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:27:13,097 INFO L93 Difference]: Finished difference Result 149266 states and 175467 transitions. [2024-11-24 00:27:13,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:27:13,098 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 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 109 [2024-11-24 00:27:13,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:27:13,147 INFO L225 Difference]: With dead ends: 149266 [2024-11-24 00:27:13,147 INFO L226 Difference]: Without dead ends: 48695 [2024-11-24 00:27:13,182 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:27:13,182 INFO L435 NwaCegarLoop]: 189 mSDtfsCounter, 72 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:27:13,183 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 305 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:27:13,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48695 states. [2024-11-24 00:27:14,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48695 to 46678. [2024-11-24 00:27:14,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46678 states, 46677 states have (on average 1.1590504959616086) internal successors, (54101), 46677 states have internal predecessors, (54101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:27:14,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46678 states to 46678 states and 54101 transitions. [2024-11-24 00:27:14,118 INFO L78 Accepts]: Start accepts. Automaton has 46678 states and 54101 transitions. Word has length 109 [2024-11-24 00:27:14,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:27:14,118 INFO L471 AbstractCegarLoop]: Abstraction has 46678 states and 54101 transitions. [2024-11-24 00:27:14,118 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:27:14,118 INFO L276 IsEmpty]: Start isEmpty. Operand 46678 states and 54101 transitions. [2024-11-24 00:27:14,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-24 00:27:14,121 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:27:14,121 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:27:14,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2024-11-24 00:27:14,121 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:27:14,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:27:14,122 INFO L85 PathProgramCache]: Analyzing trace with hash -249729600, now seen corresponding path program 1 times [2024-11-24 00:27:14,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:27:14,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721019233] [2024-11-24 00:27:14,122 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:27:14,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:27:14,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:27:14,962 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:27:14,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:27:14,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721019233] [2024-11-24 00:27:14,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721019233] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:27:14,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1336035765] [2024-11-24 00:27:14,962 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:27:14,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:27:14,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:27:14,970 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:27:14,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-24 00:27:15,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:27:15,250 INFO L256 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-24 00:27:15,253 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:27:18,614 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-24 00:27:18,614 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:27:18,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1336035765] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:27:18,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:27:18,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [16] total 36 [2024-11-24 00:27:18,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326814112] [2024-11-24 00:27:18,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:27:18,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-24 00:27:18,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:27:18,615 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-24 00:27:18,615 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=1126, Unknown=0, NotChecked=0, Total=1260 [2024-11-24 00:27:18,615 INFO L87 Difference]: Start difference. First operand 46678 states and 54101 transitions. Second operand has 21 states, 21 states have (on average 5.0476190476190474) internal successors, (106), 21 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:27:20,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:27:20,983 INFO L93 Difference]: Finished difference Result 71015 states and 82575 transitions. [2024-11-24 00:27:20,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-24 00:27:20,984 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 5.0476190476190474) internal successors, (106), 21 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2024-11-24 00:27:20,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:27:21,045 INFO L225 Difference]: With dead ends: 71015 [2024-11-24 00:27:21,045 INFO L226 Difference]: Without dead ends: 68851 [2024-11-24 00:27:21,057 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=243, Invalid=1827, Unknown=0, NotChecked=0, Total=2070 [2024-11-24 00:27:21,058 INFO L435 NwaCegarLoop]: 239 mSDtfsCounter, 793 mSDsluCounter, 1893 mSDsCounter, 0 mSdLazyCounter, 1129 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 793 SdHoareTripleChecker+Valid, 2132 SdHoareTripleChecker+Invalid, 1135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:27:21,058 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [793 Valid, 2132 Invalid, 1135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1129 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-24 00:27:21,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68851 states. [2024-11-24 00:27:21,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68851 to 46628. [2024-11-24 00:27:21,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46628 states, 46627 states have (on average 1.1591567117764385) internal successors, (54048), 46627 states have internal predecessors, (54048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:27:21,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46628 states to 46628 states and 54048 transitions. [2024-11-24 00:27:21,615 INFO L78 Accepts]: Start accepts. Automaton has 46628 states and 54048 transitions. Word has length 111 [2024-11-24 00:27:21,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:27:21,615 INFO L471 AbstractCegarLoop]: Abstraction has 46628 states and 54048 transitions. [2024-11-24 00:27:21,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 5.0476190476190474) internal successors, (106), 21 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:27:21,615 INFO L276 IsEmpty]: Start isEmpty. Operand 46628 states and 54048 transitions. [2024-11-24 00:27:21,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-24 00:27:21,620 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:27:21,620 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:27:21,632 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-24 00:27:21,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:27:21,821 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:27:21,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:27:21,821 INFO L85 PathProgramCache]: Analyzing trace with hash -51316262, now seen corresponding path program 1 times [2024-11-24 00:27:21,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:27:21,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476474944] [2024-11-24 00:27:21,822 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:27:21,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:27:21,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:27:22,363 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:27:22,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:27:22,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476474944] [2024-11-24 00:27:22,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476474944] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:27:22,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [447187752] [2024-11-24 00:27:22,363 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:27:22,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:27:22,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:27:22,366 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:27:22,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-24 00:27:22,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:27:22,673 INFO L256 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-24 00:27:22,675 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:27:23,440 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:27:23,440 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:27:24,706 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:27:24,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [447187752] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:27:24,706 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:27:24,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 28 [2024-11-24 00:27:24,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543972859] [2024-11-24 00:27:24,707 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:27:24,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-24 00:27:24,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:27:24,708 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-24 00:27:24,708 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=690, Unknown=0, NotChecked=0, Total=812 [2024-11-24 00:27:24,708 INFO L87 Difference]: Start difference. First operand 46628 states and 54048 transitions. Second operand has 29 states, 29 states have (on average 9.379310344827585) internal successors, (272), 28 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) [2024-11-24 00:27:25,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:27:25,655 INFO L93 Difference]: Finished difference Result 74161 states and 86168 transitions. [2024-11-24 00:27:25,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-24 00:27:25,655 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 9.379310344827585) internal successors, (272), 28 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 111 [2024-11-24 00:27:25,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:27:25,697 INFO L225 Difference]: With dead ends: 74161 [2024-11-24 00:27:25,697 INFO L226 Difference]: Without dead ends: 59507 [2024-11-24 00:27:25,710 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 324 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=384, Invalid=1422, Unknown=0, NotChecked=0, Total=1806 [2024-11-24 00:27:25,710 INFO L435 NwaCegarLoop]: 155 mSDtfsCounter, 808 mSDsluCounter, 1076 mSDsCounter, 0 mSdLazyCounter, 992 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 808 SdHoareTripleChecker+Valid, 1231 SdHoareTripleChecker+Invalid, 1016 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 992 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 00:27:25,711 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [808 Valid, 1231 Invalid, 1016 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 992 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 00:27:25,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59507 states. [2024-11-24 00:27:26,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59507 to 46875. [2024-11-24 00:27:26,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46875 states, 46874 states have (on average 1.1585527157912703) internal successors, (54306), 46874 states have internal predecessors, (54306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:27:26,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46875 states to 46875 states and 54306 transitions. [2024-11-24 00:27:26,240 INFO L78 Accepts]: Start accepts. Automaton has 46875 states and 54306 transitions. Word has length 111 [2024-11-24 00:27:26,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:27:26,240 INFO L471 AbstractCegarLoop]: Abstraction has 46875 states and 54306 transitions. [2024-11-24 00:27:26,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 9.379310344827585) internal successors, (272), 28 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) [2024-11-24 00:27:26,241 INFO L276 IsEmpty]: Start isEmpty. Operand 46875 states and 54306 transitions. [2024-11-24 00:27:26,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-24 00:27:26,243 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:27:26,243 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:27:26,252 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-24 00:27:26,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2024-11-24 00:27:26,444 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:27:26,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:27:26,445 INFO L85 PathProgramCache]: Analyzing trace with hash -1874289520, now seen corresponding path program 1 times [2024-11-24 00:27:26,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:27:26,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793589835] [2024-11-24 00:27:26,446 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:27:26,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:27:26,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:27:26,511 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:27:26,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:27:26,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793589835] [2024-11-24 00:27:26,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793589835] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:27:26,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:27:26,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:27:26,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460212087] [2024-11-24 00:27:26,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:27:26,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:27:26,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:27:26,512 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:27:26,512 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:27:26,512 INFO L87 Difference]: Start difference. First operand 46875 states and 54306 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:27:26,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:27:26,630 INFO L93 Difference]: Finished difference Result 63744 states and 74016 transitions. [2024-11-24 00:27:26,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:27:26,631 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2024-11-24 00:27:26,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:27:26,644 INFO L225 Difference]: With dead ends: 63744 [2024-11-24 00:27:26,644 INFO L226 Difference]: Without dead ends: 18100 [2024-11-24 00:27:26,658 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:27:26,659 INFO L435 NwaCegarLoop]: 186 mSDtfsCounter, 62 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:27:26,659 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 289 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:27:26,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18100 states. [2024-11-24 00:27:26,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18100 to 18098. [2024-11-24 00:27:26,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18098 states, 18097 states have (on average 1.1414599104824004) internal successors, (20657), 18097 states have internal predecessors, (20657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:27:26,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18098 states to 18098 states and 20657 transitions. [2024-11-24 00:27:26,783 INFO L78 Accepts]: Start accepts. Automaton has 18098 states and 20657 transitions. Word has length 112 [2024-11-24 00:27:26,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:27:26,783 INFO L471 AbstractCegarLoop]: Abstraction has 18098 states and 20657 transitions. [2024-11-24 00:27:26,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:27:26,783 INFO L276 IsEmpty]: Start isEmpty. Operand 18098 states and 20657 transitions. [2024-11-24 00:27:26,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-24 00:27:26,785 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:27:26,785 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:27:26,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2024-11-24 00:27:26,785 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:27:26,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:27:26,785 INFO L85 PathProgramCache]: Analyzing trace with hash 1504641210, now seen corresponding path program 1 times [2024-11-24 00:27:26,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:27:26,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690281973] [2024-11-24 00:27:26,785 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:27:26,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:27:26,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:27:27,789 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:27:27,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:27:27,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690281973] [2024-11-24 00:27:27,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690281973] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:27:27,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1498609750] [2024-11-24 00:27:27,790 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:27:27,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:27:27,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:27:27,792 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:27:27,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-24 00:27:28,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:27:28,032 INFO L256 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-24 00:27:28,034 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:27:32,456 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-24 00:27:32,456 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:27:32,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1498609750] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:27:32,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:27:32,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [20] total 38 [2024-11-24 00:27:32,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694428444] [2024-11-24 00:27:32,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:27:32,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-24 00:27:32,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:27:32,457 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-24 00:27:32,458 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=1287, Unknown=0, NotChecked=0, Total=1406 [2024-11-24 00:27:32,458 INFO L87 Difference]: Start difference. First operand 18098 states and 20657 transitions. Second operand has 20 states, 20 states have (on average 5.4) internal successors, (108), 20 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:27:35,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:27:35,747 INFO L93 Difference]: Finished difference Result 28451 states and 32600 transitions. [2024-11-24 00:27:35,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-24 00:27:35,748 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 5.4) internal successors, (108), 20 states have internal predecessors, (108), 0 states have call successors, (0), 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 113 [2024-11-24 00:27:35,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:27:35,767 INFO L225 Difference]: With dead ends: 28451 [2024-11-24 00:27:35,767 INFO L226 Difference]: Without dead ends: 27147 [2024-11-24 00:27:35,770 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 319 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=334, Invalid=2528, Unknown=0, NotChecked=0, Total=2862 [2024-11-24 00:27:35,771 INFO L435 NwaCegarLoop]: 248 mSDtfsCounter, 1284 mSDsluCounter, 2296 mSDsCounter, 0 mSdLazyCounter, 1335 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1284 SdHoareTripleChecker+Valid, 2544 SdHoareTripleChecker+Invalid, 1341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:27:35,771 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1284 Valid, 2544 Invalid, 1341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1335 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-24 00:27:35,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27147 states. [2024-11-24 00:27:35,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27147 to 17976. [2024-11-24 00:27:35,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17976 states, 17975 states have (on average 1.1416968011126565) internal successors, (20522), 17975 states have internal predecessors, (20522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:27:35,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17976 states to 17976 states and 20522 transitions. [2024-11-24 00:27:35,932 INFO L78 Accepts]: Start accepts. Automaton has 17976 states and 20522 transitions. Word has length 113 [2024-11-24 00:27:35,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:27:35,932 INFO L471 AbstractCegarLoop]: Abstraction has 17976 states and 20522 transitions. [2024-11-24 00:27:35,932 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 5.4) internal successors, (108), 20 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:27:35,932 INFO L276 IsEmpty]: Start isEmpty. Operand 17976 states and 20522 transitions. [2024-11-24 00:27:35,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-24 00:27:35,934 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:27:35,934 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:27:35,943 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-24 00:27:36,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2024-11-24 00:27:36,135 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:27:36,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:27:36,139 INFO L85 PathProgramCache]: Analyzing trace with hash 261725668, now seen corresponding path program 1 times [2024-11-24 00:27:36,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:27:36,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155637185] [2024-11-24 00:27:36,139 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:27:36,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:27:36,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:27:37,280 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:27:37,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:27:37,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155637185] [2024-11-24 00:27:37,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155637185] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:27:37,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2132037175] [2024-11-24 00:27:37,280 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:27:37,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:27:37,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:27:37,282 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:27:37,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-24 00:27:37,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:27:37,507 INFO L256 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-24 00:27:37,509 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:27:40,783 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:27:40,783 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:27:43,602 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:27:43,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2132037175] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:27:43,602 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:27:43,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 18, 18] total 56 [2024-11-24 00:27:43,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309182344] [2024-11-24 00:27:43,603 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:27:43,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2024-11-24 00:27:43,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:27:43,604 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2024-11-24 00:27:43,604 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=2912, Unknown=0, NotChecked=0, Total=3080 [2024-11-24 00:27:43,605 INFO L87 Difference]: Start difference. First operand 17976 states and 20522 transitions. Second operand has 56 states, 56 states have (on average 5.589285714285714) internal successors, (313), 56 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:27:54,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:27:54,207 INFO L93 Difference]: Finished difference Result 29988 states and 34380 transitions. [2024-11-24 00:27:54,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2024-11-24 00:27:54,208 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 56 states have (on average 5.589285714285714) internal successors, (313), 56 states have internal predecessors, (313), 0 states have call successors, (0), 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 113 [2024-11-24 00:27:54,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:27:54,228 INFO L225 Difference]: With dead ends: 29988 [2024-11-24 00:27:54,228 INFO L226 Difference]: Without dead ends: 27235 [2024-11-24 00:27:54,233 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2322 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=1372, Invalid=12200, Unknown=0, NotChecked=0, Total=13572 [2024-11-24 00:27:54,234 INFO L435 NwaCegarLoop]: 265 mSDtfsCounter, 2970 mSDsluCounter, 8670 mSDsCounter, 0 mSdLazyCounter, 5162 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2970 SdHoareTripleChecker+Valid, 8935 SdHoareTripleChecker+Invalid, 5201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 5162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:27:54,234 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2970 Valid, 8935 Invalid, 5201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 5162 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-24 00:27:54,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27235 states. [2024-11-24 00:27:54,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27235 to 17519. [2024-11-24 00:27:54,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17519 states, 17518 states have (on average 1.1412832515127298) internal successors, (19993), 17518 states have internal predecessors, (19993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:27:54,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17519 states to 17519 states and 19993 transitions. [2024-11-24 00:27:54,405 INFO L78 Accepts]: Start accepts. Automaton has 17519 states and 19993 transitions. Word has length 113 [2024-11-24 00:27:54,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:27:54,405 INFO L471 AbstractCegarLoop]: Abstraction has 17519 states and 19993 transitions. [2024-11-24 00:27:54,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 56 states have (on average 5.589285714285714) internal successors, (313), 56 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:27:54,406 INFO L276 IsEmpty]: Start isEmpty. Operand 17519 states and 19993 transitions. [2024-11-24 00:27:54,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-24 00:27:54,407 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:27:54,408 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:27:54,416 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-24 00:27:54,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2024-11-24 00:27:54,608 INFO L396 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:27:54,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:27:54,608 INFO L85 PathProgramCache]: Analyzing trace with hash -494822149, now seen corresponding path program 1 times [2024-11-24 00:27:54,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:27:54,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843657596] [2024-11-24 00:27:54,609 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:27:54,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:27:54,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:27:55,678 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:27:55,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:27:55,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843657596] [2024-11-24 00:27:55,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843657596] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:27:55,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:27:55,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-24 00:27:55,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462716383] [2024-11-24 00:27:55,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:27:55,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-24 00:27:55,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:27:55,679 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-24 00:27:55,679 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2024-11-24 00:27:55,679 INFO L87 Difference]: Start difference. First operand 17519 states and 19993 transitions. Second operand has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:27:56,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:27:56,956 INFO L93 Difference]: Finished difference Result 18715 states and 21368 transitions. [2024-11-24 00:27:56,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-24 00:27:56,957 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2024-11-24 00:27:56,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:27:56,970 INFO L225 Difference]: With dead ends: 18715 [2024-11-24 00:27:56,970 INFO L226 Difference]: Without dead ends: 18079 [2024-11-24 00:27:56,973 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=157, Invalid=899, Unknown=0, NotChecked=0, Total=1056 [2024-11-24 00:27:56,973 INFO L435 NwaCegarLoop]: 252 mSDtfsCounter, 439 mSDsluCounter, 3323 mSDsCounter, 0 mSdLazyCounter, 1160 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 3575 SdHoareTripleChecker+Invalid, 1172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-24 00:27:56,973 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [439 Valid, 3575 Invalid, 1172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1160 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-24 00:27:56,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18079 states. [2024-11-24 00:27:57,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18079 to 17472. [2024-11-24 00:27:57,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17472 states, 17471 states have (on average 1.1412626638429397) internal successors, (19939), 17471 states have internal predecessors, (19939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:27:57,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17472 states to 17472 states and 19939 transitions. [2024-11-24 00:27:57,120 INFO L78 Accepts]: Start accepts. Automaton has 17472 states and 19939 transitions. Word has length 114 [2024-11-24 00:27:57,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:27:57,120 INFO L471 AbstractCegarLoop]: Abstraction has 17472 states and 19939 transitions. [2024-11-24 00:27:57,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:27:57,120 INFO L276 IsEmpty]: Start isEmpty. Operand 17472 states and 19939 transitions. [2024-11-24 00:27:57,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-24 00:27:57,122 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:27:57,122 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:27:57,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2024-11-24 00:27:57,123 INFO L396 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:27:57,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:27:57,123 INFO L85 PathProgramCache]: Analyzing trace with hash -528058541, now seen corresponding path program 1 times [2024-11-24 00:27:57,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:27:57,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931769502] [2024-11-24 00:27:57,123 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:27:57,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:27:57,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:27:58,236 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:27:58,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:27:58,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931769502] [2024-11-24 00:27:58,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931769502] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:27:58,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:27:58,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-24 00:27:58,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30880168] [2024-11-24 00:27:58,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:27:58,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-24 00:27:58,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:27:58,238 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-24 00:27:58,238 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=365, Unknown=0, NotChecked=0, Total=420 [2024-11-24 00:27:58,238 INFO L87 Difference]: Start difference. First operand 17472 states and 19939 transitions. Second operand has 21 states, 21 states have (on average 5.428571428571429) internal successors, (114), 21 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:28:00,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:28:00,523 INFO L93 Difference]: Finished difference Result 27382 states and 31373 transitions. [2024-11-24 00:28:00,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-24 00:28:00,523 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 5.428571428571429) internal successors, (114), 21 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2024-11-24 00:28:00,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:28:00,545 INFO L225 Difference]: With dead ends: 27382 [2024-11-24 00:28:00,545 INFO L226 Difference]: Without dead ends: 26580 [2024-11-24 00:28:00,551 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 294 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=241, Invalid=1565, Unknown=0, NotChecked=0, Total=1806 [2024-11-24 00:28:00,551 INFO L435 NwaCegarLoop]: 370 mSDtfsCounter, 979 mSDsluCounter, 4946 mSDsCounter, 0 mSdLazyCounter, 2305 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 979 SdHoareTripleChecker+Valid, 5316 SdHoareTripleChecker+Invalid, 2315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 2305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:28:00,551 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [979 Valid, 5316 Invalid, 2315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 2305 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-24 00:28:00,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26580 states. [2024-11-24 00:28:00,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26580 to 16442. [2024-11-24 00:28:00,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16442 states, 16441 states have (on average 1.1405632260811387) internal successors, (18752), 16441 states have internal predecessors, (18752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:28:00,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16442 states to 16442 states and 18752 transitions. [2024-11-24 00:28:00,732 INFO L78 Accepts]: Start accepts. Automaton has 16442 states and 18752 transitions. Word has length 114 [2024-11-24 00:28:00,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:28:00,732 INFO L471 AbstractCegarLoop]: Abstraction has 16442 states and 18752 transitions. [2024-11-24 00:28:00,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 5.428571428571429) internal successors, (114), 21 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:28:00,732 INFO L276 IsEmpty]: Start isEmpty. Operand 16442 states and 18752 transitions. [2024-11-24 00:28:00,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-24 00:28:00,735 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:28:00,735 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 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] [2024-11-24 00:28:00,735 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2024-11-24 00:28:00,735 INFO L396 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:28:00,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:28:00,736 INFO L85 PathProgramCache]: Analyzing trace with hash 942117804, now seen corresponding path program 1 times [2024-11-24 00:28:00,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:28:00,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921716387] [2024-11-24 00:28:00,736 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:28:00,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:28:00,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:28:01,169 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 27 proven. 39 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-24 00:28:01,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:28:01,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921716387] [2024-11-24 00:28:01,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921716387] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:28:01,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [594291202] [2024-11-24 00:28:01,169 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:28:01,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:28:01,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:28:01,174 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:28:01,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_630a7feb-2bf6-4c66-8a70-1bf8d664ac40/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process