./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8c85d5-15c5-48ff-b5e8-d3b2e1ec0ac0/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8c85d5-15c5-48ff-b5e8-d3b2e1ec0ac0/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8c85d5-15c5-48ff-b5e8-d3b2e1ec0ac0/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8c85d5-15c5-48ff-b5e8-d3b2e1ec0ac0/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8c85d5-15c5-48ff-b5e8-d3b2e1ec0ac0/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8c85d5-15c5-48ff-b5e8-d3b2e1ec0ac0/bin/uautomizer-verify-84ZbGMXZE1 --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 6a475a1757f9d6a7e4fb14b3de484172261c724bb5d3b2a10ee5c8f5de9de51b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 12:43:10,747 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 12:43:10,805 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8c85d5-15c5-48ff-b5e8-d3b2e1ec0ac0/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 12:43:10,809 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 12:43:10,809 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 12:43:10,832 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 12:43:10,833 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 12:43:10,833 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 12:43:10,833 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 12:43:10,833 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 12:43:10,834 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 12:43:10,834 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 12:43:10,834 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 12:43:10,834 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 12:43:10,834 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 12:43:10,835 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 12:43:10,835 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 12:43:10,835 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 12:43:10,835 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 12:43:10,835 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 12:43:10,835 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 12:43:10,835 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 12:43:10,835 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 12:43:10,835 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 12:43:10,835 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 12:43:10,836 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 12:43:10,836 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 12:43:10,836 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 12:43:10,836 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 12:43:10,836 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 12:43:10,836 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 12:43:10,836 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 12:43:10,836 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:43:10,837 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 12:43:10,837 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 12:43:10,837 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 12:43:10,837 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 12:43:10,837 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:43:10,837 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 12:43:10,837 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 12:43:10,837 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 12:43:10,838 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 12:43:10,838 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 12:43:10,838 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 12:43:10,838 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 12:43:10,838 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 12:43:10,838 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 12:43:10,838 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 12:43:10,838 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_ff8c85d5-15c5-48ff-b5e8-d3b2e1ec0ac0/bin/uautomizer-verify-84ZbGMXZE1 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 -> 6a475a1757f9d6a7e4fb14b3de484172261c724bb5d3b2a10ee5c8f5de9de51b [2024-12-02 12:43:11,092 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 12:43:11,101 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 12:43:11,104 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 12:43:11,105 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 12:43:11,106 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 12:43:11,107 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8c85d5-15c5-48ff-b5e8-d3b2e1ec0ac0/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c [2024-12-02 12:43:14,217 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8c85d5-15c5-48ff-b5e8-d3b2e1ec0ac0/bin/uautomizer-verify-84ZbGMXZE1/data/8968ca581/dfe63d086622453d9e56631d588a0199/FLAG93407acf8 [2024-12-02 12:43:14,487 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 12:43:14,487 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8c85d5-15c5-48ff-b5e8-d3b2e1ec0ac0/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c [2024-12-02 12:43:14,500 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8c85d5-15c5-48ff-b5e8-d3b2e1ec0ac0/bin/uautomizer-verify-84ZbGMXZE1/data/8968ca581/dfe63d086622453d9e56631d588a0199/FLAG93407acf8 [2024-12-02 12:43:14,777 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8c85d5-15c5-48ff-b5e8-d3b2e1ec0ac0/bin/uautomizer-verify-84ZbGMXZE1/data/8968ca581/dfe63d086622453d9e56631d588a0199 [2024-12-02 12:43:14,779 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 12:43:14,781 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 12:43:14,782 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 12:43:14,782 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 12:43:14,788 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 12:43:14,789 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:43:14" (1/1) ... [2024-12-02 12:43:14,790 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68ba4ba6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:43:14, skipping insertion in model container [2024-12-02 12:43:14,790 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:43:14" (1/1) ... [2024-12-02 12:43:14,828 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 12:43:15,059 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_ff8c85d5-15c5-48ff-b5e8-d3b2e1ec0ac0/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c[8609,8622] [2024-12-02 12:43:15,117 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 12:43:15,132 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 12:43:15,202 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_ff8c85d5-15c5-48ff-b5e8-d3b2e1ec0ac0/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c[8609,8622] [2024-12-02 12:43:15,244 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 12:43:15,262 INFO L204 MainTranslator]: Completed translation [2024-12-02 12:43:15,263 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:43:15 WrapperNode [2024-12-02 12:43:15,263 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 12:43:15,264 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 12:43:15,264 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 12:43:15,264 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 12:43:15,270 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:43:15" (1/1) ... [2024-12-02 12:43:15,280 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:43:15" (1/1) ... [2024-12-02 12:43:15,311 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 853 [2024-12-02 12:43:15,311 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 12:43:15,312 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 12:43:15,312 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 12:43:15,312 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 12:43:15,319 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:43:15" (1/1) ... [2024-12-02 12:43:15,320 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:43:15" (1/1) ... [2024-12-02 12:43:15,323 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:43:15" (1/1) ... [2024-12-02 12:43:15,339 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]. [2024-12-02 12:43:15,339 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:43:15" (1/1) ... [2024-12-02 12:43:15,340 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:43:15" (1/1) ... [2024-12-02 12:43:15,351 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:43:15" (1/1) ... [2024-12-02 12:43:15,353 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:43:15" (1/1) ... [2024-12-02 12:43:15,359 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:43:15" (1/1) ... [2024-12-02 12:43:15,362 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:43:15" (1/1) ... [2024-12-02 12:43:15,365 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:43:15" (1/1) ... [2024-12-02 12:43:15,369 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 12:43:15,370 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 12:43:15,370 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 12:43:15,370 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 12:43:15,371 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:43:15" (1/1) ... [2024-12-02 12:43:15,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:43:15,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8c85d5-15c5-48ff-b5e8-d3b2e1ec0ac0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:43:15,405 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8c85d5-15c5-48ff-b5e8-d3b2e1ec0ac0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 12:43:15,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8c85d5-15c5-48ff-b5e8-d3b2e1ec0ac0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 12:43:15,431 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 12:43:15,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 12:43:15,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 12:43:15,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 12:43:15,562 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 12:43:15,564 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 12:43:16,376 INFO L? ?]: Removed 98 outVars from TransFormulas that were not future-live. [2024-12-02 12:43:16,377 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 12:43:16,392 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 12:43:16,393 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-02 12:43:16,393 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:43:16 BoogieIcfgContainer [2024-12-02 12:43:16,393 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 12:43:16,395 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 12:43:16,396 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 12:43:16,400 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 12:43:16,400 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:43:14" (1/3) ... [2024-12-02 12:43:16,401 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a5b82e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:43:16, skipping insertion in model container [2024-12-02 12:43:16,401 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:43:15" (2/3) ... [2024-12-02 12:43:16,401 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a5b82e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:43:16, skipping insertion in model container [2024-12-02 12:43:16,401 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:43:16" (3/3) ... [2024-12-02 12:43:16,402 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c [2024-12-02 12:43:16,416 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 12:43:16,419 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c that has 1 procedures, 207 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-12-02 12:43:16,480 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 12:43:16,492 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;@3eb090ef, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 12:43:16,492 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 12:43:16,497 INFO L276 IsEmpty]: Start isEmpty. Operand has 207 states, 205 states have (on average 1.721951219512195) internal successors, (353), 206 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:43:16,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-12-02 12:43:16,504 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:43:16,505 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, 1, 1, 1, 1, 1] [2024-12-02 12:43:16,505 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:43:16,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:43:16,510 INFO L85 PathProgramCache]: Analyzing trace with hash -374161539, now seen corresponding path program 1 times [2024-12-02 12:43:16,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:43:16,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704063836] [2024-12-02 12:43:16,517 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:43:16,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:43:16,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:43:17,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:43:17,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:43:17,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704063836] [2024-12-02 12:43:17,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704063836] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:43:17,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:43:17,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 12:43:17,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41691635] [2024-12-02 12:43:17,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:43:17,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 12:43:17,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:43:17,223 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 12:43:17,224 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:43:17,227 INFO L87 Difference]: Start difference. First operand has 207 states, 205 states have (on average 1.721951219512195) internal successors, (353), 206 states have internal predecessors, (353), 0 states have call successors, (0), 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 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:43:17,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:43:17,557 INFO L93 Difference]: Finished difference Result 829 states and 1341 transitions. [2024-12-02 12:43:17,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 12:43:17,559 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 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 80 [2024-12-02 12:43:17,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:43:17,573 INFO L225 Difference]: With dead ends: 829 [2024-12-02 12:43:17,574 INFO L226 Difference]: Without dead ends: 714 [2024-12-02 12:43:17,577 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2024-12-02 12:43:17,580 INFO L435 NwaCegarLoop]: 358 mSDtfsCounter, 2307 mSDsluCounter, 2079 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2307 SdHoareTripleChecker+Valid, 2437 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 12:43:17,581 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2307 Valid, 2437 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 12:43:17,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 714 states. [2024-12-02 12:43:17,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 714 to 315. [2024-12-02 12:43:17,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 314 states have (on average 1.4968152866242037) internal successors, (470), 314 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:43:17,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 470 transitions. [2024-12-02 12:43:17,642 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 470 transitions. Word has length 80 [2024-12-02 12:43:17,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:43:17,642 INFO L471 AbstractCegarLoop]: Abstraction has 315 states and 470 transitions. [2024-12-02 12:43:17,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:43:17,643 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 470 transitions. [2024-12-02 12:43:17,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-12-02 12:43:17,645 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:43:17,645 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, 1, 1, 1, 1, 1, 1] [2024-12-02 12:43:17,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 12:43:17,646 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:43:17,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:43:17,647 INFO L85 PathProgramCache]: Analyzing trace with hash 1024475534, now seen corresponding path program 1 times [2024-12-02 12:43:17,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:43:17,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292998855] [2024-12-02 12:43:17,647 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:43:17,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:43:17,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:43:18,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:43:18,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:43:18,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292998855] [2024-12-02 12:43:18,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292998855] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:43:18,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:43:18,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 12:43:18,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36179186] [2024-12-02 12:43:18,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:43:18,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 12:43:18,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:43:18,006 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 12:43:18,006 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:43:18,006 INFO L87 Difference]: Start difference. First operand 315 states and 470 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:43:18,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:43:18,314 INFO L93 Difference]: Finished difference Result 1371 states and 2113 transitions. [2024-12-02 12:43:18,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 12:43:18,315 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-12-02 12:43:18,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:43:18,320 INFO L225 Difference]: With dead ends: 1371 [2024-12-02 12:43:18,321 INFO L226 Difference]: Without dead ends: 1133 [2024-12-02 12:43:18,322 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:43:18,323 INFO L435 NwaCegarLoop]: 587 mSDtfsCounter, 1037 mSDsluCounter, 872 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1037 SdHoareTripleChecker+Valid, 1459 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 12:43:18,323 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1037 Valid, 1459 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 12:43:18,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1133 states. [2024-12-02 12:43:18,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1133 to 1125. [2024-12-02 12:43:18,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1125 states, 1124 states have (on average 1.5364768683274022) internal successors, (1727), 1124 states have internal predecessors, (1727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:43:18,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1125 states to 1125 states and 1727 transitions. [2024-12-02 12:43:18,373 INFO L78 Accepts]: Start accepts. Automaton has 1125 states and 1727 transitions. Word has length 81 [2024-12-02 12:43:18,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:43:18,373 INFO L471 AbstractCegarLoop]: Abstraction has 1125 states and 1727 transitions. [2024-12-02 12:43:18,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:43:18,374 INFO L276 IsEmpty]: Start isEmpty. Operand 1125 states and 1727 transitions. [2024-12-02 12:43:18,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-12-02 12:43:18,377 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:43:18,377 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, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:43:18,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 12:43:18,378 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:43:18,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:43:18,379 INFO L85 PathProgramCache]: Analyzing trace with hash 1872628209, now seen corresponding path program 1 times [2024-12-02 12:43:18,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:43:18,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163738876] [2024-12-02 12:43:18,379 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:43:18,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:43:18,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:43:18,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:43:18,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:43:18,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163738876] [2024-12-02 12:43:18,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163738876] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:43:18,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:43:18,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 12:43:18,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168981143] [2024-12-02 12:43:18,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:43:18,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:43:18,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:43:18,601 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:43:18,601 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:43:18,601 INFO L87 Difference]: Start difference. First operand 1125 states and 1727 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:43:18,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:43:18,954 INFO L93 Difference]: Finished difference Result 3049 states and 4737 transitions. [2024-12-02 12:43:18,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:43:18,956 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2024-12-02 12:43:18,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:43:18,966 INFO L225 Difference]: With dead ends: 3049 [2024-12-02 12:43:18,966 INFO L226 Difference]: Without dead ends: 1979 [2024-12-02 12:43:18,968 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 [2024-12-02 12:43:18,969 INFO L435 NwaCegarLoop]: 169 mSDtfsCounter, 1144 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1144 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 12:43:18,970 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1144 Valid, 281 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 12:43:18,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1979 states. [2024-12-02 12:43:19,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1979 to 1977. [2024-12-02 12:43:19,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1977 states, 1976 states have (on average 1.5455465587044535) internal successors, (3054), 1976 states have internal predecessors, (3054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:43:19,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1977 states to 1977 states and 3054 transitions. [2024-12-02 12:43:19,037 INFO L78 Accepts]: Start accepts. Automaton has 1977 states and 3054 transitions. Word has length 82 [2024-12-02 12:43:19,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:43:19,037 INFO L471 AbstractCegarLoop]: Abstraction has 1977 states and 3054 transitions. [2024-12-02 12:43:19,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:43:19,038 INFO L276 IsEmpty]: Start isEmpty. Operand 1977 states and 3054 transitions. [2024-12-02 12:43:19,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-12-02 12:43:19,040 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:43:19,041 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, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:43:19,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 12:43:19,041 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:43:19,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:43:19,042 INFO L85 PathProgramCache]: Analyzing trace with hash -1410777150, now seen corresponding path program 1 times [2024-12-02 12:43:19,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:43:19,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063593138] [2024-12-02 12:43:19,042 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:43:19,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:43:19,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:43:19,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:43:19,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:43:19,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063593138] [2024-12-02 12:43:19,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063593138] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:43:19,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:43:19,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 12:43:19,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200346555] [2024-12-02 12:43:19,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:43:19,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:43:19,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:43:19,229 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:43:19,229 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:43:19,229 INFO L87 Difference]: Start difference. First operand 1977 states and 3054 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:43:19,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:43:19,563 INFO L93 Difference]: Finished difference Result 5484 states and 8533 transitions. [2024-12-02 12:43:19,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:43:19,564 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2024-12-02 12:43:19,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:43:19,578 INFO L225 Difference]: With dead ends: 5484 [2024-12-02 12:43:19,578 INFO L226 Difference]: Without dead ends: 3585 [2024-12-02 12:43:19,581 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 [2024-12-02 12:43:19,582 INFO L435 NwaCegarLoop]: 171 mSDtfsCounter, 1102 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1102 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 12:43:19,582 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1102 Valid, 285 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 12:43:19,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3585 states. [2024-12-02 12:43:19,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3585 to 3583. [2024-12-02 12:43:19,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3583 states, 3582 states have (on average 1.5466219988833054) internal successors, (5540), 3582 states have internal predecessors, (5540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:43:19,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3583 states to 3583 states and 5540 transitions. [2024-12-02 12:43:19,710 INFO L78 Accepts]: Start accepts. Automaton has 3583 states and 5540 transitions. Word has length 82 [2024-12-02 12:43:19,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:43:19,710 INFO L471 AbstractCegarLoop]: Abstraction has 3583 states and 5540 transitions. [2024-12-02 12:43:19,711 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:43:19,711 INFO L276 IsEmpty]: Start isEmpty. Operand 3583 states and 5540 transitions. [2024-12-02 12:43:19,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-12-02 12:43:19,714 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:43:19,714 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, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:43:19,714 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 12:43:19,714 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:43:19,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:43:19,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1933266084, now seen corresponding path program 1 times [2024-12-02 12:43:19,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:43:19,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885689044] [2024-12-02 12:43:19,715 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:43:19,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:43:19,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:43:19,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:43:19,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:43:19,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885689044] [2024-12-02 12:43:19,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885689044] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:43:19,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:43:19,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 12:43:19,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404118047] [2024-12-02 12:43:19,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:43:19,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:43:19,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:43:19,904 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:43:19,904 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:43:19,904 INFO L87 Difference]: Start difference. First operand 3583 states and 5540 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:43:20,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:43:20,223 INFO L93 Difference]: Finished difference Result 10066 states and 15649 transitions. [2024-12-02 12:43:20,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:43:20,224 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2024-12-02 12:43:20,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:43:20,249 INFO L225 Difference]: With dead ends: 10066 [2024-12-02 12:43:20,249 INFO L226 Difference]: Without dead ends: 6625 [2024-12-02 12:43:20,253 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 [2024-12-02 12:43:20,254 INFO L435 NwaCegarLoop]: 173 mSDtfsCounter, 1056 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1056 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 12:43:20,255 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1056 Valid, 296 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 12:43:20,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6625 states. [2024-12-02 12:43:20,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6625 to 6623. [2024-12-02 12:43:20,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6623 states, 6622 states have (on average 1.5468136514648143) internal successors, (10243), 6622 states have internal predecessors, (10243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:43:20,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6623 states to 6623 states and 10243 transitions. [2024-12-02 12:43:20,460 INFO L78 Accepts]: Start accepts. Automaton has 6623 states and 10243 transitions. Word has length 82 [2024-12-02 12:43:20,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:43:20,461 INFO L471 AbstractCegarLoop]: Abstraction has 6623 states and 10243 transitions. [2024-12-02 12:43:20,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:43:20,461 INFO L276 IsEmpty]: Start isEmpty. Operand 6623 states and 10243 transitions. [2024-12-02 12:43:20,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-12-02 12:43:20,464 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:43:20,464 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, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:43:20,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 12:43:20,465 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:43:20,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:43:20,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1259416403, now seen corresponding path program 1 times [2024-12-02 12:43:20,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:43:20,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506527679] [2024-12-02 12:43:20,466 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:43:20,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:43:20,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:43:20,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:43:20,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:43:20,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506527679] [2024-12-02 12:43:20,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506527679] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:43:20,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:43:20,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 12:43:20,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667044776] [2024-12-02 12:43:20,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:43:20,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:43:20,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:43:20,640 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:43:20,640 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:43:20,640 INFO L87 Difference]: Start difference. First operand 6623 states and 10243 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:43:20,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:43:20,997 INFO L93 Difference]: Finished difference Result 19244 states and 29834 transitions. [2024-12-02 12:43:20,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:43:20,997 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2024-12-02 12:43:20,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:43:21,044 INFO L225 Difference]: With dead ends: 19244 [2024-12-02 12:43:21,044 INFO L226 Difference]: Without dead ends: 12729 [2024-12-02 12:43:21,053 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 [2024-12-02 12:43:21,054 INFO L435 NwaCegarLoop]: 171 mSDtfsCounter, 1058 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1058 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 12:43:21,054 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1058 Valid, 287 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 12:43:21,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12729 states. [2024-12-02 12:43:21,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12729 to 12727. [2024-12-02 12:43:21,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12727 states, 12726 states have (on average 1.541882759704542) internal successors, (19622), 12726 states have internal predecessors, (19622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:43:21,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12727 states to 12727 states and 19622 transitions. [2024-12-02 12:43:21,514 INFO L78 Accepts]: Start accepts. Automaton has 12727 states and 19622 transitions. Word has length 82 [2024-12-02 12:43:21,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:43:21,515 INFO L471 AbstractCegarLoop]: Abstraction has 12727 states and 19622 transitions. [2024-12-02 12:43:21,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:43:21,515 INFO L276 IsEmpty]: Start isEmpty. Operand 12727 states and 19622 transitions. [2024-12-02 12:43:21,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-12-02 12:43:21,519 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:43:21,519 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:43:21,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 12:43:21,519 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:43:21,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:43:21,520 INFO L85 PathProgramCache]: Analyzing trace with hash -407485162, now seen corresponding path program 1 times [2024-12-02 12:43:21,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:43:21,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577207972] [2024-12-02 12:43:21,520 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:43:21,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:43:21,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:43:21,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:43:21,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:43:21,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577207972] [2024-12-02 12:43:21,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577207972] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:43:21,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:43:21,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 12:43:21,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111488089] [2024-12-02 12:43:21,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:43:21,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:43:21,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:43:21,676 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:43:21,676 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:43:21,677 INFO L87 Difference]: Start difference. First operand 12727 states and 19622 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:43:22,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:43:22,082 INFO L93 Difference]: Finished difference Result 35617 states and 54998 transitions. [2024-12-02 12:43:22,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:43:22,083 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2024-12-02 12:43:22,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:43:22,142 INFO L225 Difference]: With dead ends: 35617 [2024-12-02 12:43:22,142 INFO L226 Difference]: Without dead ends: 22954 [2024-12-02 12:43:22,158 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 [2024-12-02 12:43:22,159 INFO L435 NwaCegarLoop]: 174 mSDtfsCounter, 1155 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1155 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 12:43:22,160 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1155 Valid, 286 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 12:43:22,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22954 states. [2024-12-02 12:43:22,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22954 to 22952. [2024-12-02 12:43:22,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22952 states, 22951 states have (on average 1.537449348612261) internal successors, (35286), 22951 states have internal predecessors, (35286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:43:22,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22952 states to 22952 states and 35286 transitions. [2024-12-02 12:43:22,662 INFO L78 Accepts]: Start accepts. Automaton has 22952 states and 35286 transitions. Word has length 83 [2024-12-02 12:43:22,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:43:22,663 INFO L471 AbstractCegarLoop]: Abstraction has 22952 states and 35286 transitions. [2024-12-02 12:43:22,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:43:22,663 INFO L276 IsEmpty]: Start isEmpty. Operand 22952 states and 35286 transitions. [2024-12-02 12:43:22,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-12-02 12:43:22,668 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:43:22,669 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:43:22,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 12:43:22,669 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:43:22,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:43:22,670 INFO L85 PathProgramCache]: Analyzing trace with hash 174469786, now seen corresponding path program 1 times [2024-12-02 12:43:22,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:43:22,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884220738] [2024-12-02 12:43:22,670 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:43:22,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:43:22,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:43:23,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:43:23,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:43:23,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884220738] [2024-12-02 12:43:23,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884220738] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:43:23,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:43:23,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:43:23,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099685906] [2024-12-02 12:43:23,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:43:23,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:43:23,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:43:23,111 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:43:23,111 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:43:23,111 INFO L87 Difference]: Start difference. First operand 22952 states and 35286 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:43:23,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:43:23,223 INFO L93 Difference]: Finished difference Result 23530 states and 36151 transitions. [2024-12-02 12:43:23,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:43:23,223 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2024-12-02 12:43:23,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:43:23,273 INFO L225 Difference]: With dead ends: 23530 [2024-12-02 12:43:23,274 INFO L226 Difference]: Without dead ends: 23528 [2024-12-02 12:43:23,281 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:43:23,281 INFO L435 NwaCegarLoop]: 281 mSDtfsCounter, 0 mSDsluCounter, 829 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1110 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:43:23,282 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1110 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:43:23,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23528 states. [2024-12-02 12:43:23,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23528 to 23528. [2024-12-02 12:43:23,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23528 states, 23527 states have (on average 1.524291239852085) internal successors, (35862), 23527 states have internal predecessors, (35862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:43:23,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23528 states to 23528 states and 35862 transitions. [2024-12-02 12:43:23,710 INFO L78 Accepts]: Start accepts. Automaton has 23528 states and 35862 transitions. Word has length 83 [2024-12-02 12:43:23,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:43:23,710 INFO L471 AbstractCegarLoop]: Abstraction has 23528 states and 35862 transitions. [2024-12-02 12:43:23,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:43:23,711 INFO L276 IsEmpty]: Start isEmpty. Operand 23528 states and 35862 transitions. [2024-12-02 12:43:23,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-12-02 12:43:23,718 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:43:23,718 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:43:23,718 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 12:43:23,718 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:43:23,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:43:23,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1373936999, now seen corresponding path program 1 times [2024-12-02 12:43:23,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:43:23,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464116224] [2024-12-02 12:43:23,719 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:43:23,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:43:23,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:43:24,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:43:24,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:43:24,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464116224] [2024-12-02 12:43:24,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464116224] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:43:24,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:43:24,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 12:43:24,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739262335] [2024-12-02 12:43:24,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:43:24,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 12:43:24,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:43:24,045 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 12:43:24,045 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:43:24,049 INFO L87 Difference]: Start difference. First operand 23528 states and 35862 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:43:24,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:43:24,262 INFO L93 Difference]: Finished difference Result 65932 states and 100224 transitions. [2024-12-02 12:43:24,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 12:43:24,263 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2024-12-02 12:43:24,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:43:24,404 INFO L225 Difference]: With dead ends: 65932 [2024-12-02 12:43:24,405 INFO L226 Difference]: Without dead ends: 43210 [2024-12-02 12:43:24,477 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:43:24,479 INFO L435 NwaCegarLoop]: 280 mSDtfsCounter, 226 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 600 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 [2024-12-02 12:43:24,480 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 600 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:43:24,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43210 states. [2024-12-02 12:43:25,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43210 to 43208. [2024-12-02 12:43:25,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43208 states, 43207 states have (on average 1.5104496956511677) internal successors, (65262), 43207 states have internal predecessors, (65262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:43:25,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43208 states to 43208 states and 65262 transitions. [2024-12-02 12:43:25,274 INFO L78 Accepts]: Start accepts. Automaton has 43208 states and 65262 transitions. Word has length 84 [2024-12-02 12:43:25,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:43:25,274 INFO L471 AbstractCegarLoop]: Abstraction has 43208 states and 65262 transitions. [2024-12-02 12:43:25,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:43:25,275 INFO L276 IsEmpty]: Start isEmpty. Operand 43208 states and 65262 transitions. [2024-12-02 12:43:25,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-12-02 12:43:25,282 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:43:25,283 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:43:25,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 12:43:25,283 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:43:25,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:43:25,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1979820424, now seen corresponding path program 1 times [2024-12-02 12:43:25,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:43:25,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307316593] [2024-12-02 12:43:25,284 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:43:25,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:43:25,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:43:25,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:43:25,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:43:25,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307316593] [2024-12-02 12:43:25,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307316593] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:43:25,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:43:25,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:43:25,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772633437] [2024-12-02 12:43:25,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:43:25,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:43:25,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:43:25,506 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:43:25,506 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:43:25,506 INFO L87 Difference]: Start difference. First operand 43208 states and 65262 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:43:25,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:43:25,812 INFO L93 Difference]: Finished difference Result 99075 states and 149695 transitions. [2024-12-02 12:43:25,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:43:25,813 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-12-02 12:43:25,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:43:25,931 INFO L225 Difference]: With dead ends: 99075 [2024-12-02 12:43:25,931 INFO L226 Difference]: Without dead ends: 60625 [2024-12-02 12:43:25,965 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 [2024-12-02 12:43:25,965 INFO L435 NwaCegarLoop]: 280 mSDtfsCounter, 200 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 552 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 [2024-12-02 12:43:25,966 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 552 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:43:26,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60625 states. [2024-12-02 12:43:26,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60625 to 43038. [2024-12-02 12:43:26,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43038 states, 43037 states have (on average 1.4981527522829194) internal successors, (64476), 43037 states have internal predecessors, (64476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:43:26,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43038 states to 43038 states and 64476 transitions. [2024-12-02 12:43:26,591 INFO L78 Accepts]: Start accepts. Automaton has 43038 states and 64476 transitions. Word has length 85 [2024-12-02 12:43:26,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:43:26,591 INFO L471 AbstractCegarLoop]: Abstraction has 43038 states and 64476 transitions. [2024-12-02 12:43:26,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:43:26,591 INFO L276 IsEmpty]: Start isEmpty. Operand 43038 states and 64476 transitions. [2024-12-02 12:43:26,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-12-02 12:43:26,594 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:43:26,594 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:43:26,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 12:43:26,595 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:43:26,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:43:26,595 INFO L85 PathProgramCache]: Analyzing trace with hash -1374524072, now seen corresponding path program 1 times [2024-12-02 12:43:26,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:43:26,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482132660] [2024-12-02 12:43:26,596 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:43:26,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:43:26,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:43:26,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:43:26,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:43:26,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482132660] [2024-12-02 12:43:26,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482132660] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:43:26,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:43:26,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:43:26,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489252847] [2024-12-02 12:43:26,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:43:26,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:43:26,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:43:26,696 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:43:26,696 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:43:26,696 INFO L87 Difference]: Start difference. First operand 43038 states and 64476 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:43:27,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:43:27,128 INFO L93 Difference]: Finished difference Result 84823 states and 126979 transitions. [2024-12-02 12:43:27,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:43:27,129 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-12-02 12:43:27,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:43:27,230 INFO L225 Difference]: With dead ends: 84823 [2024-12-02 12:43:27,230 INFO L226 Difference]: Without dead ends: 55043 [2024-12-02 12:43:27,248 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 [2024-12-02 12:43:27,250 INFO L435 NwaCegarLoop]: 279 mSDtfsCounter, 183 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 537 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 [2024-12-02 12:43:27,251 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 537 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:43:27,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55043 states. [2024-12-02 12:43:27,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55043 to 54558. [2024-12-02 12:43:27,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54558 states, 54557 states have (on average 1.4773722895320491) internal successors, (80601), 54557 states have internal predecessors, (80601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:43:27,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54558 states to 54558 states and 80601 transitions. [2024-12-02 12:43:27,944 INFO L78 Accepts]: Start accepts. Automaton has 54558 states and 80601 transitions. Word has length 85 [2024-12-02 12:43:27,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:43:27,944 INFO L471 AbstractCegarLoop]: Abstraction has 54558 states and 80601 transitions. [2024-12-02 12:43:27,944 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:43:27,944 INFO L276 IsEmpty]: Start isEmpty. Operand 54558 states and 80601 transitions. [2024-12-02 12:43:27,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-12-02 12:43:27,948 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:43:27,948 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:43:27,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 12:43:27,948 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:43:27,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:43:27,949 INFO L85 PathProgramCache]: Analyzing trace with hash -1153454217, now seen corresponding path program 1 times [2024-12-02 12:43:27,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:43:27,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39297714] [2024-12-02 12:43:27,949 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:43:27,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:43:27,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:43:28,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:43:28,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:43:28,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39297714] [2024-12-02 12:43:28,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39297714] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:43:28,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:43:28,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:43:28,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670095781] [2024-12-02 12:43:28,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:43:28,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:43:28,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:43:28,136 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:43:28,136 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:43:28,136 INFO L87 Difference]: Start difference. First operand 54558 states and 80601 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:43:28,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:43:28,410 INFO L93 Difference]: Finished difference Result 90488 states and 133320 transitions. [2024-12-02 12:43:28,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:43:28,411 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-12-02 12:43:28,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:43:28,504 INFO L225 Difference]: With dead ends: 90488 [2024-12-02 12:43:28,504 INFO L226 Difference]: Without dead ends: 61934 [2024-12-02 12:43:28,531 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 [2024-12-02 12:43:28,532 INFO L435 NwaCegarLoop]: 278 mSDtfsCounter, 171 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 535 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 [2024-12-02 12:43:28,532 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 535 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:43:28,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61934 states. [2024-12-02 12:43:29,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61934 to 61381. [2024-12-02 12:43:29,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61381 states, 61380 states have (on average 1.4515314434669273) internal successors, (89095), 61380 states have internal predecessors, (89095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:43:29,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61381 states to 61381 states and 89095 transitions. [2024-12-02 12:43:29,506 INFO L78 Accepts]: Start accepts. Automaton has 61381 states and 89095 transitions. Word has length 85 [2024-12-02 12:43:29,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:43:29,506 INFO L471 AbstractCegarLoop]: Abstraction has 61381 states and 89095 transitions. [2024-12-02 12:43:29,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:43:29,506 INFO L276 IsEmpty]: Start isEmpty. Operand 61381 states and 89095 transitions. [2024-12-02 12:43:29,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-12-02 12:43:29,515 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:43:29,515 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:43:29,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 12:43:29,516 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:43:29,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:43:29,516 INFO L85 PathProgramCache]: Analyzing trace with hash -2097816686, now seen corresponding path program 1 times [2024-12-02 12:43:29,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:43:29,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652264769] [2024-12-02 12:43:29,517 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:43:29,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:43:29,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:43:29,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:43:29,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:43:29,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652264769] [2024-12-02 12:43:29,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652264769] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:43:29,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:43:29,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:43:29,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012375577] [2024-12-02 12:43:29,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:43:29,598 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:43:29,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:43:29,598 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:43:29,598 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:43:29,599 INFO L87 Difference]: Start difference. First operand 61381 states and 89095 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:43:29,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:43:29,963 INFO L93 Difference]: Finished difference Result 83830 states and 121194 transitions. [2024-12-02 12:43:29,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:43:29,964 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-12-02 12:43:29,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:43:30,049 INFO L225 Difference]: With dead ends: 83830 [2024-12-02 12:43:30,050 INFO L226 Difference]: Without dead ends: 62996 [2024-12-02 12:43:30,074 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 [2024-12-02 12:43:30,074 INFO L435 NwaCegarLoop]: 278 mSDtfsCounter, 163 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 536 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:43:30,075 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 536 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:43:30,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62996 states. [2024-12-02 12:43:30,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62996 to 56786. [2024-12-02 12:43:30,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56786 states, 56785 states have (on average 1.4281236241965307) internal successors, (81096), 56785 states have internal predecessors, (81096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:43:30,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56786 states to 56786 states and 81096 transitions. [2024-12-02 12:43:30,884 INFO L78 Accepts]: Start accepts. Automaton has 56786 states and 81096 transitions. Word has length 85 [2024-12-02 12:43:30,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:43:30,885 INFO L471 AbstractCegarLoop]: Abstraction has 56786 states and 81096 transitions. [2024-12-02 12:43:30,885 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:43:30,885 INFO L276 IsEmpty]: Start isEmpty. Operand 56786 states and 81096 transitions. [2024-12-02 12:43:30,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-12-02 12:43:30,889 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:43:30,889 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:43:30,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 12:43:30,889 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:43:30,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:43:30,890 INFO L85 PathProgramCache]: Analyzing trace with hash -1654109609, now seen corresponding path program 1 times [2024-12-02 12:43:30,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:43:30,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882066134] [2024-12-02 12:43:30,890 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:43:30,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:43:30,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:43:31,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:43:31,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:43:31,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882066134] [2024-12-02 12:43:31,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882066134] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:43:31,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:43:31,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 12:43:31,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600277237] [2024-12-02 12:43:31,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:43:31,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 12:43:31,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:43:31,188 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 12:43:31,188 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:43:31,189 INFO L87 Difference]: Start difference. First operand 56786 states and 81096 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:43:31,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:43:31,729 INFO L93 Difference]: Finished difference Result 142549 states and 204892 transitions. [2024-12-02 12:43:31,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 12:43:31,730 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-12-02 12:43:31,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:43:31,843 INFO L225 Difference]: With dead ends: 142549 [2024-12-02 12:43:31,843 INFO L226 Difference]: Without dead ends: 116791 [2024-12-02 12:43:31,873 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-12-02 12:43:31,873 INFO L435 NwaCegarLoop]: 441 mSDtfsCounter, 1661 mSDsluCounter, 1290 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1661 SdHoareTripleChecker+Valid, 1731 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:43:31,873 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1661 Valid, 1731 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:43:31,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116791 states. [2024-12-02 12:43:33,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116791 to 82307. [2024-12-02 12:43:33,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82307 states, 82306 states have (on average 1.427502247709766) internal successors, (117492), 82306 states have internal predecessors, (117492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:43:33,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82307 states to 82307 states and 117492 transitions. [2024-12-02 12:43:33,186 INFO L78 Accepts]: Start accepts. Automaton has 82307 states and 117492 transitions. Word has length 85 [2024-12-02 12:43:33,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:43:33,186 INFO L471 AbstractCegarLoop]: Abstraction has 82307 states and 117492 transitions. [2024-12-02 12:43:33,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:43:33,186 INFO L276 IsEmpty]: Start isEmpty. Operand 82307 states and 117492 transitions. [2024-12-02 12:43:33,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-12-02 12:43:33,193 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:43:33,193 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:43:33,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 12:43:33,193 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:43:33,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:43:33,194 INFO L85 PathProgramCache]: Analyzing trace with hash 2103629176, now seen corresponding path program 1 times [2024-12-02 12:43:33,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:43:33,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914092399] [2024-12-02 12:43:33,194 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:43:33,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:43:33,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:43:33,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:43:33,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:43:33,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914092399] [2024-12-02 12:43:33,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914092399] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:43:33,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:43:33,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 12:43:33,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810108482] [2024-12-02 12:43:33,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:43:33,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 12:43:33,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:43:33,420 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 12:43:33,421 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:43:33,421 INFO L87 Difference]: Start difference. First operand 82307 states and 117492 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:43:34,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:43:34,100 INFO L93 Difference]: Finished difference Result 152039 states and 218304 transitions. [2024-12-02 12:43:34,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 12:43:34,101 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-12-02 12:43:34,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:43:34,255 INFO L225 Difference]: With dead ends: 152039 [2024-12-02 12:43:34,256 INFO L226 Difference]: Without dead ends: 134313 [2024-12-02 12:43:34,291 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-12-02 12:43:34,291 INFO L435 NwaCegarLoop]: 429 mSDtfsCounter, 1828 mSDsluCounter, 1192 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1828 SdHoareTripleChecker+Valid, 1621 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:43:34,292 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1828 Valid, 1621 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:43:34,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134313 states. [2024-12-02 12:43:35,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134313 to 99850. [2024-12-02 12:43:35,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99850 states, 99849 states have (on average 1.4279862592514698) internal successors, (142583), 99849 states have internal predecessors, (142583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:43:35,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99850 states to 99850 states and 142583 transitions. [2024-12-02 12:43:35,909 INFO L78 Accepts]: Start accepts. Automaton has 99850 states and 142583 transitions. Word has length 85 [2024-12-02 12:43:35,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:43:35,909 INFO L471 AbstractCegarLoop]: Abstraction has 99850 states and 142583 transitions. [2024-12-02 12:43:35,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:43:35,910 INFO L276 IsEmpty]: Start isEmpty. Operand 99850 states and 142583 transitions. [2024-12-02 12:43:36,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-12-02 12:43:36,102 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:43:36,102 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:43:36,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 12:43:36,102 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:43:36,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:43:36,103 INFO L85 PathProgramCache]: Analyzing trace with hash -1303233550, now seen corresponding path program 1 times [2024-12-02 12:43:36,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:43:36,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611105630] [2024-12-02 12:43:36,103 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:43:36,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:43:36,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:43:36,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:43:36,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:43:36,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611105630] [2024-12-02 12:43:36,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611105630] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:43:36,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:43:36,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 12:43:36,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502028100] [2024-12-02 12:43:36,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:43:36,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 12:43:36,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:43:36,307 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 12:43:36,307 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:43:36,307 INFO L87 Difference]: Start difference. First operand 99850 states and 142583 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:43:36,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:43:36,894 INFO L93 Difference]: Finished difference Result 150931 states and 216418 transitions. [2024-12-02 12:43:36,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 12:43:36,894 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-12-02 12:43:36,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:43:37,063 INFO L225 Difference]: With dead ends: 150931 [2024-12-02 12:43:37,063 INFO L226 Difference]: Without dead ends: 145781 [2024-12-02 12:43:37,098 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-12-02 12:43:37,099 INFO L435 NwaCegarLoop]: 408 mSDtfsCounter, 1763 mSDsluCounter, 1378 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1763 SdHoareTripleChecker+Valid, 1786 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:43:37,099 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1763 Valid, 1786 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:43:37,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145781 states. [2024-12-02 12:43:38,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145781 to 104926. [2024-12-02 12:43:38,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104926 states, 104925 states have (on average 1.4281534429354301) internal successors, (149849), 104925 states have internal predecessors, (149849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:43:38,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104926 states to 104926 states and 149849 transitions. [2024-12-02 12:43:38,916 INFO L78 Accepts]: Start accepts. Automaton has 104926 states and 149849 transitions. Word has length 85 [2024-12-02 12:43:38,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:43:38,917 INFO L471 AbstractCegarLoop]: Abstraction has 104926 states and 149849 transitions. [2024-12-02 12:43:38,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:43:38,917 INFO L276 IsEmpty]: Start isEmpty. Operand 104926 states and 149849 transitions. [2024-12-02 12:43:38,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-12-02 12:43:38,926 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:43:38,926 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:43:38,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 12:43:38,926 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:43:38,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:43:38,927 INFO L85 PathProgramCache]: Analyzing trace with hash 854865847, now seen corresponding path program 1 times [2024-12-02 12:43:38,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:43:38,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666581700] [2024-12-02 12:43:38,927 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:43:38,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:43:38,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:43:39,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:43:39,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:43:39,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666581700] [2024-12-02 12:43:39,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666581700] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:43:39,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:43:39,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 12:43:39,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341437114] [2024-12-02 12:43:39,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:43:39,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 12:43:39,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:43:39,117 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 12:43:39,118 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:43:39,118 INFO L87 Difference]: Start difference. First operand 104926 states and 149849 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:43:39,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:43:39,636 INFO L93 Difference]: Finished difference Result 162295 states and 232764 transitions. [2024-12-02 12:43:39,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 12:43:39,636 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-12-02 12:43:39,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:43:40,037 INFO L225 Difference]: With dead ends: 162295 [2024-12-02 12:43:40,037 INFO L226 Difference]: Without dead ends: 150761 [2024-12-02 12:43:40,051 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-12-02 12:43:40,052 INFO L435 NwaCegarLoop]: 427 mSDtfsCounter, 1567 mSDsluCounter, 1637 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1567 SdHoareTripleChecker+Valid, 2064 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:43:40,052 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1567 Valid, 2064 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:43:40,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150761 states. [2024-12-02 12:43:41,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150761 to 112150. [2024-12-02 12:43:41,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112150 states, 112149 states have (on average 1.4291612051823912) internal successors, (160279), 112149 states have internal predecessors, (160279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:43:41,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112150 states to 112150 states and 160279 transitions. [2024-12-02 12:43:41,814 INFO L78 Accepts]: Start accepts. Automaton has 112150 states and 160279 transitions. Word has length 85 [2024-12-02 12:43:41,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:43:41,814 INFO L471 AbstractCegarLoop]: Abstraction has 112150 states and 160279 transitions. [2024-12-02 12:43:41,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:43:41,815 INFO L276 IsEmpty]: Start isEmpty. Operand 112150 states and 160279 transitions. [2024-12-02 12:43:41,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-12-02 12:43:41,820 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:43:41,820 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:43:41,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 12:43:41,821 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:43:41,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:43:41,821 INFO L85 PathProgramCache]: Analyzing trace with hash 2002786146, now seen corresponding path program 1 times [2024-12-02 12:43:41,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:43:41,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917600399] [2024-12-02 12:43:41,821 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:43:41,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:43:41,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:43:41,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:43:41,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:43:41,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917600399] [2024-12-02 12:43:41,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917600399] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:43:41,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:43:41,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 12:43:41,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100602799] [2024-12-02 12:43:41,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:43:41,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 12:43:41,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:43:41,946 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 12:43:41,946 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:43:41,947 INFO L87 Difference]: Start difference. First operand 112150 states and 160279 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:43:42,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:43:42,530 INFO L93 Difference]: Finished difference Result 204104 states and 292816 transitions. [2024-12-02 12:43:42,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 12:43:42,531 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2024-12-02 12:43:42,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:43:42,906 INFO L225 Difference]: With dead ends: 204104 [2024-12-02 12:43:42,906 INFO L226 Difference]: Without dead ends: 176250 [2024-12-02 12:43:42,928 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-12-02 12:43:42,928 INFO L435 NwaCegarLoop]: 457 mSDtfsCounter, 1666 mSDsluCounter, 1618 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1666 SdHoareTripleChecker+Valid, 2075 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:43:42,928 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1666 Valid, 2075 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:43:42,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176250 states. [2024-12-02 12:43:44,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176250 to 131139. [2024-12-02 12:43:44,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131139 states, 131138 states have (on average 1.4291128429593254) internal successors, (187411), 131138 states have internal predecessors, (187411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:43:44,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131139 states to 131139 states and 187411 transitions. [2024-12-02 12:43:44,864 INFO L78 Accepts]: Start accepts. Automaton has 131139 states and 187411 transitions. Word has length 86 [2024-12-02 12:43:44,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:43:44,865 INFO L471 AbstractCegarLoop]: Abstraction has 131139 states and 187411 transitions. [2024-12-02 12:43:44,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:43:44,865 INFO L276 IsEmpty]: Start isEmpty. Operand 131139 states and 187411 transitions. [2024-12-02 12:43:44,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-12-02 12:43:44,872 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:43:44,872 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:43:44,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 12:43:44,872 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:43:44,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:43:44,872 INFO L85 PathProgramCache]: Analyzing trace with hash 801309202, now seen corresponding path program 1 times [2024-12-02 12:43:44,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:43:44,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141172801] [2024-12-02 12:43:44,873 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:43:44,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:43:44,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:43:44,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:43:44,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:43:44,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141172801] [2024-12-02 12:43:44,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141172801] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:43:44,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:43:44,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:43:44,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125662988] [2024-12-02 12:43:44,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:43:44,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:43:44,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:43:44,945 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:43:44,945 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:43:44,945 INFO L87 Difference]: Start difference. First operand 131139 states and 187411 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:43:45,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:43:45,912 INFO L93 Difference]: Finished difference Result 286521 states and 407656 transitions. [2024-12-02 12:43:45,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:43:45,913 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 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 88 [2024-12-02 12:43:45,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:43:46,072 INFO L225 Difference]: With dead ends: 286521 [2024-12-02 12:43:46,072 INFO L226 Difference]: Without dead ends: 160530 [2024-12-02 12:43:46,112 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 [2024-12-02 12:43:46,112 INFO L435 NwaCegarLoop]: 387 mSDtfsCounter, 186 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 642 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 [2024-12-02 12:43:46,113 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 642 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:43:46,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160530 states. [2024-12-02 12:43:47,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160530 to 144010. [2024-12-02 12:43:47,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144010 states, 144009 states have (on average 1.3987945197869578) internal successors, (201439), 144009 states have internal predecessors, (201439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:43:47,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144010 states to 144010 states and 201439 transitions. [2024-12-02 12:43:47,987 INFO L78 Accepts]: Start accepts. Automaton has 144010 states and 201439 transitions. Word has length 88 [2024-12-02 12:43:47,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:43:47,987 INFO L471 AbstractCegarLoop]: Abstraction has 144010 states and 201439 transitions. [2024-12-02 12:43:47,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:43:47,988 INFO L276 IsEmpty]: Start isEmpty. Operand 144010 states and 201439 transitions. [2024-12-02 12:43:48,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-12-02 12:43:48,005 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:43:48,005 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:43:48,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 12:43:48,006 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:43:48,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:43:48,006 INFO L85 PathProgramCache]: Analyzing trace with hash -2103833722, now seen corresponding path program 1 times [2024-12-02 12:43:48,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:43:48,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719547596] [2024-12-02 12:43:48,006 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:43:48,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:43:48,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:43:48,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:43:48,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:43:48,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719547596] [2024-12-02 12:43:48,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719547596] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:43:48,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:43:48,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 12:43:48,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662820643] [2024-12-02 12:43:48,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:43:48,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 12:43:48,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:43:48,163 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 12:43:48,163 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:43:48,163 INFO L87 Difference]: Start difference. First operand 144010 states and 201439 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:43:49,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:43:49,882 INFO L93 Difference]: Finished difference Result 374384 states and 522448 transitions. [2024-12-02 12:43:49,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 12:43:49,883 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2024-12-02 12:43:49,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:43:50,215 INFO L225 Difference]: With dead ends: 374384 [2024-12-02 12:43:50,215 INFO L226 Difference]: Without dead ends: 320724 [2024-12-02 12:43:50,271 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 [2024-12-02 12:43:50,272 INFO L435 NwaCegarLoop]: 167 mSDtfsCounter, 2119 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2119 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 12:43:50,272 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2119 Valid, 570 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 12:43:50,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320724 states. [2024-12-02 12:43:52,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320724 to 144058. [2024-12-02 12:43:52,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144058 states, 144057 states have (on average 1.3987727080252956) internal successors, (201503), 144057 states have internal predecessors, (201503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:43:53,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144058 states to 144058 states and 201503 transitions. [2024-12-02 12:43:53,041 INFO L78 Accepts]: Start accepts. Automaton has 144058 states and 201503 transitions. Word has length 90 [2024-12-02 12:43:53,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:43:53,042 INFO L471 AbstractCegarLoop]: Abstraction has 144058 states and 201503 transitions. [2024-12-02 12:43:53,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:43:53,042 INFO L276 IsEmpty]: Start isEmpty. Operand 144058 states and 201503 transitions. [2024-12-02 12:43:53,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-12-02 12:43:53,055 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:43:53,055 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:43:53,055 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 12:43:53,055 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:43:53,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:43:53,056 INFO L85 PathProgramCache]: Analyzing trace with hash -1598638401, now seen corresponding path program 1 times [2024-12-02 12:43:53,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:43:53,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332092344] [2024-12-02 12:43:53,056 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:43:53,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:43:53,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:43:53,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:43:53,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:43:53,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332092344] [2024-12-02 12:43:53,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332092344] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:43:53,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:43:53,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 12:43:53,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165511833] [2024-12-02 12:43:53,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:43:53,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 12:43:53,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:43:53,211 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 12:43:53,212 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:43:53,212 INFO L87 Difference]: Start difference. First operand 144058 states and 201503 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:43:55,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:43:55,259 INFO L93 Difference]: Finished difference Result 487580 states and 678267 transitions. [2024-12-02 12:43:55,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 12:43:55,259 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2024-12-02 12:43:55,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:43:55,742 INFO L225 Difference]: With dead ends: 487580 [2024-12-02 12:43:55,743 INFO L226 Difference]: Without dead ends: 418690 [2024-12-02 12:43:55,810 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 [2024-12-02 12:43:55,811 INFO L435 NwaCegarLoop]: 176 mSDtfsCounter, 1886 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1886 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 12:43:55,811 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1886 Valid, 572 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 12:43:56,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418690 states. [2024-12-02 12:43:58,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418690 to 144394. [2024-12-02 12:43:59,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144394 states, 144393 states have (on average 1.3984957719557043) internal successors, (201933), 144393 states have internal predecessors, (201933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:43:59,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144394 states to 144394 states and 201933 transitions. [2024-12-02 12:43:59,297 INFO L78 Accepts]: Start accepts. Automaton has 144394 states and 201933 transitions. Word has length 90 [2024-12-02 12:43:59,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:43:59,297 INFO L471 AbstractCegarLoop]: Abstraction has 144394 states and 201933 transitions. [2024-12-02 12:43:59,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:43:59,297 INFO L276 IsEmpty]: Start isEmpty. Operand 144394 states and 201933 transitions. [2024-12-02 12:43:59,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-12-02 12:43:59,314 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:43:59,314 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:43:59,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 12:43:59,314 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:43:59,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:43:59,315 INFO L85 PathProgramCache]: Analyzing trace with hash -834453472, now seen corresponding path program 1 times [2024-12-02 12:43:59,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:43:59,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033167270] [2024-12-02 12:43:59,315 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:43:59,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:43:59,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:43:59,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:43:59,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:43:59,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033167270] [2024-12-02 12:43:59,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033167270] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:43:59,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:43:59,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 12:43:59,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406578582] [2024-12-02 12:43:59,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:43:59,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 12:43:59,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:43:59,503 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 12:43:59,504 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:43:59,504 INFO L87 Difference]: Start difference. First operand 144394 states and 201933 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:44:01,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:44:01,262 INFO L93 Difference]: Finished difference Result 407172 states and 564307 transitions. [2024-12-02 12:44:01,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 12:44:01,263 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2024-12-02 12:44:01,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:44:01,636 INFO L225 Difference]: With dead ends: 407172 [2024-12-02 12:44:01,636 INFO L226 Difference]: Without dead ends: 358870 [2024-12-02 12:44:01,705 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 [2024-12-02 12:44:01,707 INFO L435 NwaCegarLoop]: 166 mSDtfsCounter, 1810 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1810 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 12:44:01,707 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1810 Valid, 539 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 12:44:01,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358870 states. [2024-12-02 12:44:04,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358870 to 144986. [2024-12-02 12:44:04,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144986 states, 144985 states have (on average 1.3981515329171983) internal successors, (202711), 144985 states have internal predecessors, (202711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:44:04,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144986 states to 144986 states and 202711 transitions. [2024-12-02 12:44:04,829 INFO L78 Accepts]: Start accepts. Automaton has 144986 states and 202711 transitions. Word has length 90 [2024-12-02 12:44:04,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:44:04,830 INFO L471 AbstractCegarLoop]: Abstraction has 144986 states and 202711 transitions. [2024-12-02 12:44:04,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:44:04,830 INFO L276 IsEmpty]: Start isEmpty. Operand 144986 states and 202711 transitions. [2024-12-02 12:44:04,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-12-02 12:44:04,855 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:44:04,855 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:44:04,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 12:44:04,856 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:44:04,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:44:04,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1444706874, now seen corresponding path program 1 times [2024-12-02 12:44:04,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:44:04,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182939290] [2024-12-02 12:44:04,856 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:44:04,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:44:04,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:44:05,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:44:05,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:44:05,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182939290] [2024-12-02 12:44:05,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182939290] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:44:05,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:44:05,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 12:44:05,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439795276] [2024-12-02 12:44:05,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:44:05,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 12:44:05,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:44:05,007 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 12:44:05,007 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:44:05,007 INFO L87 Difference]: Start difference. First operand 144986 states and 202711 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 6 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:44:06,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:44:06,510 INFO L93 Difference]: Finished difference Result 378583 states and 525744 transitions. [2024-12-02 12:44:06,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 12:44:06,511 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 6 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2024-12-02 12:44:06,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:44:06,797 INFO L225 Difference]: With dead ends: 378583 [2024-12-02 12:44:06,797 INFO L226 Difference]: Without dead ends: 274844 [2024-12-02 12:44:06,847 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 [2024-12-02 12:44:06,847 INFO L435 NwaCegarLoop]: 170 mSDtfsCounter, 1422 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1422 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 12:44:06,848 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1422 Valid, 478 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 12:44:06,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274844 states. [2024-12-02 12:44:08,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274844 to 145106. [2024-12-02 12:44:08,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145106 states, 145105 states have (on average 1.397987664105303) internal successors, (202855), 145105 states have internal predecessors, (202855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:44:09,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145106 states to 145106 states and 202855 transitions. [2024-12-02 12:44:09,184 INFO L78 Accepts]: Start accepts. Automaton has 145106 states and 202855 transitions. Word has length 91 [2024-12-02 12:44:09,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:44:09,184 INFO L471 AbstractCegarLoop]: Abstraction has 145106 states and 202855 transitions. [2024-12-02 12:44:09,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 6 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:44:09,184 INFO L276 IsEmpty]: Start isEmpty. Operand 145106 states and 202855 transitions. [2024-12-02 12:44:09,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-12-02 12:44:09,198 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:44:09,198 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:44:09,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-02 12:44:09,199 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:44:09,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:44:09,199 INFO L85 PathProgramCache]: Analyzing trace with hash -1432531179, now seen corresponding path program 1 times [2024-12-02 12:44:09,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:44:09,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165159098] [2024-12-02 12:44:09,199 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:44:09,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:44:09,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:44:09,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:44:09,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:44:09,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165159098] [2024-12-02 12:44:09,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165159098] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:44:09,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:44:09,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 12:44:09,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986713200] [2024-12-02 12:44:09,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:44:09,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 12:44:09,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:44:09,297 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 12:44:09,298 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:44:09,298 INFO L87 Difference]: Start difference. First operand 145106 states and 202855 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 6 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:44:10,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:44:10,799 INFO L93 Difference]: Finished difference Result 361604 states and 502503 transitions. [2024-12-02 12:44:10,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 12:44:10,800 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 6 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2024-12-02 12:44:10,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:44:11,195 INFO L225 Difference]: With dead ends: 361604 [2024-12-02 12:44:11,195 INFO L226 Difference]: Without dead ends: 323078 [2024-12-02 12:44:11,260 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-12-02 12:44:11,261 INFO L435 NwaCegarLoop]: 170 mSDtfsCounter, 1667 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1667 SdHoareTripleChecker+Valid, 533 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 12:44:11,261 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1667 Valid, 533 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 12:44:11,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323078 states. [2024-12-02 12:44:13,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323078 to 192950. [2024-12-02 12:44:13,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192950 states, 192949 states have (on average 1.3934666673576956) internal successors, (268868), 192949 states have internal predecessors, (268868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:44:14,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192950 states to 192950 states and 268868 transitions. [2024-12-02 12:44:14,511 INFO L78 Accepts]: Start accepts. Automaton has 192950 states and 268868 transitions. Word has length 91 [2024-12-02 12:44:14,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:44:14,511 INFO L471 AbstractCegarLoop]: Abstraction has 192950 states and 268868 transitions. [2024-12-02 12:44:14,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 6 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:44:14,511 INFO L276 IsEmpty]: Start isEmpty. Operand 192950 states and 268868 transitions. [2024-12-02 12:44:14,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-12-02 12:44:14,522 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:44:14,522 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:44:14,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-02 12:44:14,522 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:44:14,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:44:14,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1660726472, now seen corresponding path program 1 times [2024-12-02 12:44:14,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:44:14,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715291660] [2024-12-02 12:44:14,523 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:44:14,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:44:14,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:44:14,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:44:14,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:44:14,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715291660] [2024-12-02 12:44:14,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715291660] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:44:14,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:44:14,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 12:44:14,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253745349] [2024-12-02 12:44:14,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:44:14,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 12:44:14,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:44:14,853 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 12:44:14,853 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-12-02 12:44:14,853 INFO L87 Difference]: Start difference. First operand 192950 states and 268868 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 9 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:44:16,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:44:16,832 INFO L93 Difference]: Finished difference Result 418470 states and 581517 transitions. [2024-12-02 12:44:16,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 12:44:16,833 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 9 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2024-12-02 12:44:16,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:44:17,169 INFO L225 Difference]: With dead ends: 418470 [2024-12-02 12:44:17,170 INFO L226 Difference]: Without dead ends: 292126 [2024-12-02 12:44:17,221 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 [2024-12-02 12:44:17,221 INFO L435 NwaCegarLoop]: 203 mSDtfsCounter, 760 mSDsluCounter, 825 mSDsCounter, 0 mSdLazyCounter, 792 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 760 SdHoareTripleChecker+Valid, 1028 SdHoareTripleChecker+Invalid, 803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 12:44:17,221 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [760 Valid, 1028 Invalid, 803 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 792 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 12:44:17,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292126 states. [2024-12-02 12:44:19,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292126 to 193523. [2024-12-02 12:44:19,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193523 states, 193522 states have (on average 1.3929114002542347) internal successors, (269559), 193522 states have internal predecessors, (269559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:44:20,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193523 states to 193523 states and 269559 transitions. [2024-12-02 12:44:20,022 INFO L78 Accepts]: Start accepts. Automaton has 193523 states and 269559 transitions. Word has length 92 [2024-12-02 12:44:20,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:44:20,022 INFO L471 AbstractCegarLoop]: Abstraction has 193523 states and 269559 transitions. [2024-12-02 12:44:20,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 9 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:44:20,022 INFO L276 IsEmpty]: Start isEmpty. Operand 193523 states and 269559 transitions. [2024-12-02 12:44:20,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-12-02 12:44:20,034 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:44:20,034 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:44:20,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-12-02 12:44:20,035 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:44:20,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:44:20,035 INFO L85 PathProgramCache]: Analyzing trace with hash -1802637196, now seen corresponding path program 1 times [2024-12-02 12:44:20,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:44:20,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174075607] [2024-12-02 12:44:20,035 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:44:20,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:44:20,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:44:20,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:44:20,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:44:20,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174075607] [2024-12-02 12:44:20,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174075607] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:44:20,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:44:20,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 12:44:20,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801777450] [2024-12-02 12:44:20,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:44:20,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 12:44:20,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:44:20,396 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 12:44:20,396 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-12-02 12:44:20,396 INFO L87 Difference]: Start difference. First operand 193523 states and 269559 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 9 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:44:22,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:44:22,260 INFO L93 Difference]: Finished difference Result 427759 states and 593156 transitions. [2024-12-02 12:44:22,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 12:44:22,261 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 9 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2024-12-02 12:44:22,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:44:22,637 INFO L225 Difference]: With dead ends: 427759 [2024-12-02 12:44:22,637 INFO L226 Difference]: Without dead ends: 344599 [2024-12-02 12:44:22,726 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=90, Invalid=252, Unknown=0, NotChecked=0, Total=342 [2024-12-02 12:44:22,726 INFO L435 NwaCegarLoop]: 169 mSDtfsCounter, 1221 mSDsluCounter, 904 mSDsCounter, 0 mSdLazyCounter, 765 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1221 SdHoareTripleChecker+Valid, 1073 SdHoareTripleChecker+Invalid, 775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 765 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 12:44:22,727 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1221 Valid, 1073 Invalid, 775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 765 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 12:44:22,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344599 states. [2024-12-02 12:44:25,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344599 to 193523. [2024-12-02 12:44:26,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193523 states, 193522 states have (on average 1.3927357096350803) internal successors, (269525), 193522 states have internal predecessors, (269525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:44:26,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193523 states to 193523 states and 269525 transitions. [2024-12-02 12:44:26,317 INFO L78 Accepts]: Start accepts. Automaton has 193523 states and 269525 transitions. Word has length 92 [2024-12-02 12:44:26,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:44:26,317 INFO L471 AbstractCegarLoop]: Abstraction has 193523 states and 269525 transitions. [2024-12-02 12:44:26,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 9 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:44:26,318 INFO L276 IsEmpty]: Start isEmpty. Operand 193523 states and 269525 transitions. [2024-12-02 12:44:26,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-12-02 12:44:26,329 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:44:26,329 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:44:26,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-12-02 12:44:26,329 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:44:26,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:44:26,330 INFO L85 PathProgramCache]: Analyzing trace with hash -993145904, now seen corresponding path program 1 times [2024-12-02 12:44:26,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:44:26,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067541050] [2024-12-02 12:44:26,330 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:44:26,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:44:26,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:44:26,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:44:26,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:44:26,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067541050] [2024-12-02 12:44:26,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067541050] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:44:26,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:44:26,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 12:44:26,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268117540] [2024-12-02 12:44:26,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:44:26,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 12:44:26,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:44:26,649 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 12:44:26,649 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-12-02 12:44:26,650 INFO L87 Difference]: Start difference. First operand 193523 states and 269525 transitions. Second operand has 10 states, 10 states have (on average 9.3) internal successors, (93), 9 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:44:28,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:44:28,511 INFO L93 Difference]: Finished difference Result 472471 states and 656874 transitions. [2024-12-02 12:44:28,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 12:44:28,512 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.3) internal successors, (93), 9 states have internal predecessors, (93), 0 states have call successors, (0), 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 93 [2024-12-02 12:44:28,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:44:28,860 INFO L225 Difference]: With dead ends: 472471 [2024-12-02 12:44:28,860 INFO L226 Difference]: Without dead ends: 311320 [2024-12-02 12:44:28,961 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2024-12-02 12:44:28,961 INFO L435 NwaCegarLoop]: 193 mSDtfsCounter, 1597 mSDsluCounter, 782 mSDsCounter, 0 mSdLazyCounter, 764 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1597 SdHoareTripleChecker+Valid, 975 SdHoareTripleChecker+Invalid, 776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 764 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 12:44:28,961 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1597 Valid, 975 Invalid, 776 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 764 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 12:44:29,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311320 states. [2024-12-02 12:44:31,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311320 to 193604. [2024-12-02 12:44:31,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193604 states, 193603 states have (on average 1.391982562253684) internal successors, (269492), 193603 states have internal predecessors, (269492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:44:32,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193604 states to 193604 states and 269492 transitions. [2024-12-02 12:44:32,239 INFO L78 Accepts]: Start accepts. Automaton has 193604 states and 269492 transitions. Word has length 93 [2024-12-02 12:44:32,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:44:32,239 INFO L471 AbstractCegarLoop]: Abstraction has 193604 states and 269492 transitions. [2024-12-02 12:44:32,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.3) internal successors, (93), 9 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:44:32,240 INFO L276 IsEmpty]: Start isEmpty. Operand 193604 states and 269492 transitions. [2024-12-02 12:44:32,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-12-02 12:44:32,249 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:44:32,250 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:44:32,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-12-02 12:44:32,250 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:44:32,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:44:32,250 INFO L85 PathProgramCache]: Analyzing trace with hash -1908458290, now seen corresponding path program 1 times [2024-12-02 12:44:32,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:44:32,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235313103] [2024-12-02 12:44:32,251 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:44:32,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:44:32,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:44:32,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:44:32,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:44:32,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235313103] [2024-12-02 12:44:32,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235313103] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:44:32,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:44:32,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 12:44:32,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995899198] [2024-12-02 12:44:32,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:44:32,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 12:44:32,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:44:32,526 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 12:44:32,526 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-12-02 12:44:32,526 INFO L87 Difference]: Start difference. First operand 193604 states and 269492 transitions. Second operand has 10 states, 10 states have (on average 9.3) internal successors, (93), 9 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:44:34,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:44:34,443 INFO L93 Difference]: Finished difference Result 511012 states and 709989 transitions. [2024-12-02 12:44:34,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 12:44:34,444 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.3) internal successors, (93), 9 states have internal predecessors, (93), 0 states have call successors, (0), 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 93 [2024-12-02 12:44:34,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:44:34,806 INFO L225 Difference]: With dead ends: 511012 [2024-12-02 12:44:34,806 INFO L226 Difference]: Without dead ends: 328955 [2024-12-02 12:44:34,905 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2024-12-02 12:44:34,906 INFO L435 NwaCegarLoop]: 184 mSDtfsCounter, 1399 mSDsluCounter, 944 mSDsCounter, 0 mSdLazyCounter, 862 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1399 SdHoareTripleChecker+Valid, 1128 SdHoareTripleChecker+Invalid, 873 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 862 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 12:44:34,906 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1399 Valid, 1128 Invalid, 873 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 862 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 12:44:35,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328955 states. [2024-12-02 12:44:37,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328955 to 193346. [2024-12-02 12:44:38,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193346 states, 193345 states have (on average 1.3915849905609143) internal successors, (269056), 193345 states have internal predecessors, (269056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:44:38,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193346 states to 193346 states and 269056 transitions. [2024-12-02 12:44:38,295 INFO L78 Accepts]: Start accepts. Automaton has 193346 states and 269056 transitions. Word has length 93 [2024-12-02 12:44:38,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:44:38,295 INFO L471 AbstractCegarLoop]: Abstraction has 193346 states and 269056 transitions. [2024-12-02 12:44:38,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.3) internal successors, (93), 9 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:44:38,295 INFO L276 IsEmpty]: Start isEmpty. Operand 193346 states and 269056 transitions. [2024-12-02 12:44:38,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-12-02 12:44:38,304 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:44:38,304 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:44:38,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-12-02 12:44:38,304 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:44:38,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:44:38,305 INFO L85 PathProgramCache]: Analyzing trace with hash 753102281, now seen corresponding path program 1 times [2024-12-02 12:44:38,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:44:38,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213020594] [2024-12-02 12:44:38,305 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:44:38,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:44:38,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:44:38,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:44:38,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:44:38,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213020594] [2024-12-02 12:44:38,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213020594] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:44:38,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:44:38,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 12:44:38,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585796335] [2024-12-02 12:44:38,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:44:38,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 12:44:38,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:44:38,643 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 12:44:38,643 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-12-02 12:44:38,643 INFO L87 Difference]: Start difference. First operand 193346 states and 269056 transitions. Second operand has 10 states, 10 states have (on average 9.3) internal successors, (93), 9 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:44:40,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:44:40,771 INFO L93 Difference]: Finished difference Result 561163 states and 780972 transitions. [2024-12-02 12:44:40,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 12:44:40,771 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.3) internal successors, (93), 9 states have internal predecessors, (93), 0 states have call successors, (0), 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 93 [2024-12-02 12:44:40,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:44:41,181 INFO L225 Difference]: With dead ends: 561163 [2024-12-02 12:44:41,182 INFO L226 Difference]: Without dead ends: 371033 [2024-12-02 12:44:41,293 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2024-12-02 12:44:41,293 INFO L435 NwaCegarLoop]: 206 mSDtfsCounter, 1322 mSDsluCounter, 1038 mSDsCounter, 0 mSdLazyCounter, 925 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1322 SdHoareTripleChecker+Valid, 1244 SdHoareTripleChecker+Invalid, 934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 925 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 12:44:41,294 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1322 Valid, 1244 Invalid, 934 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 925 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 12:44:41,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371033 states. [2024-12-02 12:44:44,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371033 to 192756. [2024-12-02 12:44:44,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192756 states, 192755 states have (on average 1.3914658504318953) internal successors, (268212), 192755 states have internal predecessors, (268212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:44:44,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192756 states to 192756 states and 268212 transitions. [2024-12-02 12:44:44,779 INFO L78 Accepts]: Start accepts. Automaton has 192756 states and 268212 transitions. Word has length 93 [2024-12-02 12:44:44,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:44:44,779 INFO L471 AbstractCegarLoop]: Abstraction has 192756 states and 268212 transitions. [2024-12-02 12:44:44,780 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.3) internal successors, (93), 9 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:44:44,780 INFO L276 IsEmpty]: Start isEmpty. Operand 192756 states and 268212 transitions. [2024-12-02 12:44:44,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-12-02 12:44:44,786 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:44:44,786 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:44:44,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-12-02 12:44:44,786 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:44:44,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:44:44,787 INFO L85 PathProgramCache]: Analyzing trace with hash -2015467722, now seen corresponding path program 1 times [2024-12-02 12:44:44,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:44:44,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725198886] [2024-12-02 12:44:44,787 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:44:44,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:44:44,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:44:44,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:44:44,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:44:44,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725198886] [2024-12-02 12:44:44,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725198886] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:44:44,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:44:44,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:44:44,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494170557] [2024-12-02 12:44:44,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:44:44,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:44:44,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:44:44,853 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:44:44,853 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:44:44,853 INFO L87 Difference]: Start difference. First operand 192756 states and 268212 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:44:46,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:44:46,326 INFO L93 Difference]: Finished difference Result 539272 states and 753224 transitions. [2024-12-02 12:44:46,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:44:46,327 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 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 93 [2024-12-02 12:44:46,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:44:46,723 INFO L225 Difference]: With dead ends: 539272 [2024-12-02 12:44:46,723 INFO L226 Difference]: Without dead ends: 350756 [2024-12-02 12:44:46,822 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 [2024-12-02 12:44:46,822 INFO L435 NwaCegarLoop]: 394 mSDtfsCounter, 147 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 620 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:44:46,823 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 620 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:44:46,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350756 states. [2024-12-02 12:44:50,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350756 to 333120. [2024-12-02 12:44:50,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333120 states, 333119 states have (on average 1.386702649803824) internal successors, (461937), 333119 states have internal predecessors, (461937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:44:51,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333120 states to 333120 states and 461937 transitions. [2024-12-02 12:44:51,293 INFO L78 Accepts]: Start accepts. Automaton has 333120 states and 461937 transitions. Word has length 93 [2024-12-02 12:44:51,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:44:51,293 INFO L471 AbstractCegarLoop]: Abstraction has 333120 states and 461937 transitions. [2024-12-02 12:44:51,293 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:44:51,293 INFO L276 IsEmpty]: Start isEmpty. Operand 333120 states and 461937 transitions. [2024-12-02 12:44:51,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-12-02 12:44:51,301 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:44:51,302 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:44:51,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-12-02 12:44:51,302 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:44:51,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:44:51,302 INFO L85 PathProgramCache]: Analyzing trace with hash -1127259050, now seen corresponding path program 1 times [2024-12-02 12:44:51,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:44:51,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233612285] [2024-12-02 12:44:51,303 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:44:51,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:44:51,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:44:52,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:44:52,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:44:52,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233612285] [2024-12-02 12:44:52,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233612285] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:44:52,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:44:52,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 12:44:52,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975490810] [2024-12-02 12:44:52,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:44:52,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 12:44:52,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:44:52,060 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 12:44:52,061 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-12-02 12:44:52,061 INFO L87 Difference]: Start difference. First operand 333120 states and 461937 transitions. Second operand has 13 states, 13 states have (on average 7.153846153846154) internal successors, (93), 13 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:44:54,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:44:54,661 INFO L93 Difference]: Finished difference Result 762836 states and 1057364 transitions. [2024-12-02 12:44:54,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 12:44:54,662 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.153846153846154) internal successors, (93), 13 states have internal predecessors, (93), 0 states have call successors, (0), 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 93 [2024-12-02 12:44:54,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:44:55,448 INFO L225 Difference]: With dead ends: 762836 [2024-12-02 12:44:55,448 INFO L226 Difference]: Without dead ends: 650665 [2024-12-02 12:44:55,577 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=147, Invalid=453, Unknown=0, NotChecked=0, Total=600 [2024-12-02 12:44:55,578 INFO L435 NwaCegarLoop]: 277 mSDtfsCounter, 1622 mSDsluCounter, 2030 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1622 SdHoareTripleChecker+Valid, 2307 SdHoareTripleChecker+Invalid, 447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 12:44:55,578 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1622 Valid, 2307 Invalid, 447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 442 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 12:44:56,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 650665 states.