./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/pals_lcr.5.1.ufo.BOUNDED-10.pals+Problem12_label09.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_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/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_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/pals_lcr.5.1.ufo.BOUNDED-10.pals+Problem12_label09.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/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_a6aae026-aa24-45dd-bf15-f283c9ceacbb/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 2126042da788f2122824de6358ec68ac8216a4309db7602f144bdab8df75c67a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 11:11:27,714 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 11:11:27,769 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 11:11:27,774 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 11:11:27,774 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 11:11:27,794 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 11:11:27,795 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 11:11:27,795 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 11:11:27,795 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 11:11:27,795 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 11:11:27,795 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 11:11:27,795 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 11:11:27,796 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 11:11:27,796 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 11:11:27,796 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 11:11:27,796 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 11:11:27,796 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 11:11:27,796 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 11:11:27,796 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 11:11:27,797 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 11:11:27,797 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 11:11:27,797 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 11:11:27,797 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 11:11:27,797 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 11:11:27,797 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 11:11:27,797 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 11:11:27,797 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 11:11:27,797 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 11:11:27,797 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 11:11:27,798 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:11:27,798 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:11:27,798 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:11:27,798 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:11:27,798 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 11:11:27,798 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:11:27,798 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:11:27,798 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:11:27,798 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:11:27,798 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 11:11:27,798 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 11:11:27,799 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 11:11:27,799 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 11:11:27,799 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 11:11:27,799 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 11:11:27,799 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 11:11:27,799 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 11:11:27,799 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 11:11:27,799 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 11:11:27,799 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_a6aae026-aa24-45dd-bf15-f283c9ceacbb/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 -> 2126042da788f2122824de6358ec68ac8216a4309db7602f144bdab8df75c67a [2024-12-02 11:11:28,006 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 11:11:28,013 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 11:11:28,016 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 11:11:28,017 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 11:11:28,017 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 11:11:28,018 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/combinations/pals_lcr.5.1.ufo.BOUNDED-10.pals+Problem12_label09.c [2024-12-02 11:11:30,622 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/data/3fc602b44/98bdfa9f16144d5c9ae8a966829a36f7/FLAG58bb5debe [2024-12-02 11:11:31,038 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 11:11:31,039 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/sv-benchmarks/c/combinations/pals_lcr.5.1.ufo.BOUNDED-10.pals+Problem12_label09.c [2024-12-02 11:11:31,062 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/data/3fc602b44/98bdfa9f16144d5c9ae8a966829a36f7/FLAG58bb5debe [2024-12-02 11:11:31,210 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/data/3fc602b44/98bdfa9f16144d5c9ae8a966829a36f7 [2024-12-02 11:11:31,213 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 11:11:31,214 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 11:11:31,215 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 11:11:31,215 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 11:11:31,220 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 11:11:31,221 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:11:31" (1/1) ... [2024-12-02 11:11:31,221 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@729a67ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:11:31, skipping insertion in model container [2024-12-02 11:11:31,222 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:11:31" (1/1) ... [2024-12-02 11:11:31,334 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 11:11:31,584 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_a6aae026-aa24-45dd-bf15-f283c9ceacbb/sv-benchmarks/c/combinations/pals_lcr.5.1.ufo.BOUNDED-10.pals+Problem12_label09.c[11677,11690] [2024-12-02 11:11:31,642 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_a6aae026-aa24-45dd-bf15-f283c9ceacbb/sv-benchmarks/c/combinations/pals_lcr.5.1.ufo.BOUNDED-10.pals+Problem12_label09.c[19425,19438] [2024-12-02 11:11:32,243 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:11:32,255 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 11:11:32,285 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_a6aae026-aa24-45dd-bf15-f283c9ceacbb/sv-benchmarks/c/combinations/pals_lcr.5.1.ufo.BOUNDED-10.pals+Problem12_label09.c[11677,11690] [2024-12-02 11:11:32,296 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_a6aae026-aa24-45dd-bf15-f283c9ceacbb/sv-benchmarks/c/combinations/pals_lcr.5.1.ufo.BOUNDED-10.pals+Problem12_label09.c[19425,19438] [2024-12-02 11:11:32,761 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:11:32,788 INFO L204 MainTranslator]: Completed translation [2024-12-02 11:11:32,789 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:11:32 WrapperNode [2024-12-02 11:11:32,789 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 11:11:32,789 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 11:11:32,790 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 11:11:32,790 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 11:11:32,794 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:11:32" (1/1) ... [2024-12-02 11:11:32,836 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:11:32" (1/1) ... [2024-12-02 11:11:33,132 INFO L138 Inliner]: procedures = 36, calls = 22, calls flagged for inlining = 17, calls inlined = 17, statements flattened = 5098 [2024-12-02 11:11:33,133 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 11:11:33,133 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 11:11:33,133 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 11:11:33,134 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 11:11:33,143 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:11:32" (1/1) ... [2024-12-02 11:11:33,143 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:11:32" (1/1) ... [2024-12-02 11:11:33,183 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:11:32" (1/1) ... [2024-12-02 11:11:33,336 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 11:11:33,337 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:11:32" (1/1) ... [2024-12-02 11:11:33,337 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:11:32" (1/1) ... [2024-12-02 11:11:33,500 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:11:32" (1/1) ... [2024-12-02 11:11:33,524 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:11:32" (1/1) ... [2024-12-02 11:11:33,568 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:11:32" (1/1) ... [2024-12-02 11:11:33,608 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:11:32" (1/1) ... [2024-12-02 11:11:33,631 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:11:32" (1/1) ... [2024-12-02 11:11:33,687 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 11:11:33,688 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 11:11:33,688 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 11:11:33,688 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 11:11:33,689 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:11:32" (1/1) ... [2024-12-02 11:11:33,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:11:33,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:11:33,717 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 11:11:33,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 11:11:33,741 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 11:11:33,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 11:11:33,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 11:11:33,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 11:11:33,830 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 11:11:33,832 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 11:11:38,285 INFO L? ?]: Removed 744 outVars from TransFormulas that were not future-live. [2024-12-02 11:11:38,285 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 11:11:38,314 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 11:11:38,314 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2024-12-02 11:11:38,314 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:11:38 BoogieIcfgContainer [2024-12-02 11:11:38,314 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 11:11:38,317 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 11:11:38,317 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 11:11:38,322 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 11:11:38,322 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 11:11:31" (1/3) ... [2024-12-02 11:11:38,322 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a09d3e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:11:38, skipping insertion in model container [2024-12-02 11:11:38,322 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:11:32" (2/3) ... [2024-12-02 11:11:38,323 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a09d3e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:11:38, skipping insertion in model container [2024-12-02 11:11:38,323 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:11:38" (3/3) ... [2024-12-02 11:11:38,324 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.1.ufo.BOUNDED-10.pals+Problem12_label09.c [2024-12-02 11:11:38,339 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 11:11:38,342 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr.5.1.ufo.BOUNDED-10.pals+Problem12_label09.c that has 1 procedures, 900 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2024-12-02 11:11:38,418 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 11:11:38,429 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;@5564fa4e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 11:11:38,429 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-12-02 11:11:38,436 INFO L276 IsEmpty]: Start isEmpty. Operand has 900 states, 897 states have (on average 1.9041248606465997) internal successors, (1708), 899 states have internal predecessors, (1708), 0 states have call successors, (0), 0 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 11:11:38,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-12-02 11:11:38,443 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:11:38,443 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] [2024-12-02 11:11:38,444 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:11:38,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:11:38,449 INFO L85 PathProgramCache]: Analyzing trace with hash 920833856, now seen corresponding path program 1 times [2024-12-02 11:11:38,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:11:38,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548936076] [2024-12-02 11:11:38,457 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:11:38,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:11:38,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:11:38,646 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 11:11:38,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:11:38,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548936076] [2024-12-02 11:11:38,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548936076] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:11:38,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:11:38,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 11:11:38,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370472492] [2024-12-02 11:11:38,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:11:38,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 11:11:38,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:11:38,667 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 11:11:38,668 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 11:11:38,672 INFO L87 Difference]: Start difference. First operand has 900 states, 897 states have (on average 1.9041248606465997) internal successors, (1708), 899 states have internal predecessors, (1708), 0 states have call successors, (0), 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 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 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 11:11:38,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:11:38,767 INFO L93 Difference]: Finished difference Result 1763 states and 3346 transitions. [2024-12-02 11:11:38,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 11:11:38,769 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 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 25 [2024-12-02 11:11:38,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:11:38,782 INFO L225 Difference]: With dead ends: 1763 [2024-12-02 11:11:38,782 INFO L226 Difference]: Without dead ends: 834 [2024-12-02 11:11:38,786 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 11:11:38,788 INFO L435 NwaCegarLoop]: 1642 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1642 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:11:38,789 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1642 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:11:38,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2024-12-02 11:11:38,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 834. [2024-12-02 11:11:38,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 834 states, 832 states have (on average 1.8930288461538463) internal successors, (1575), 833 states have internal predecessors, (1575), 0 states have call successors, (0), 0 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 11:11:38,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 834 states to 834 states and 1575 transitions. [2024-12-02 11:11:38,851 INFO L78 Accepts]: Start accepts. Automaton has 834 states and 1575 transitions. Word has length 25 [2024-12-02 11:11:38,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:11:38,851 INFO L471 AbstractCegarLoop]: Abstraction has 834 states and 1575 transitions. [2024-12-02 11:11:38,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 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 11:11:38,852 INFO L276 IsEmpty]: Start isEmpty. Operand 834 states and 1575 transitions. [2024-12-02 11:11:38,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-12-02 11:11:38,853 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:11:38,853 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] [2024-12-02 11:11:38,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 11:11:38,853 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:11:38,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:11:38,854 INFO L85 PathProgramCache]: Analyzing trace with hash -768109886, now seen corresponding path program 1 times [2024-12-02 11:11:38,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:11:38,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112349463] [2024-12-02 11:11:38,854 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:11:38,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:11:38,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:11:39,046 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 11:11:39,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:11:39,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112349463] [2024-12-02 11:11:39,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112349463] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:11:39,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:11:39,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 11:11:39,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107391379] [2024-12-02 11:11:39,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:11:39,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:11:39,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:11:39,049 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:11:39,049 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:11:39,049 INFO L87 Difference]: Start difference. First operand 834 states and 1575 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 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 11:11:39,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:11:39,156 INFO L93 Difference]: Finished difference Result 881 states and 1647 transitions. [2024-12-02 11:11:39,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 11:11:39,156 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 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 25 [2024-12-02 11:11:39,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:11:39,160 INFO L225 Difference]: With dead ends: 881 [2024-12-02 11:11:39,160 INFO L226 Difference]: Without dead ends: 834 [2024-12-02 11:11:39,161 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 11:11:39,162 INFO L435 NwaCegarLoop]: 1573 mSDtfsCounter, 0 mSDsluCounter, 4683 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6256 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:11:39,162 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6256 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:11:39,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2024-12-02 11:11:39,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 834. [2024-12-02 11:11:39,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 834 states, 832 states have (on average 1.8557692307692308) internal successors, (1544), 833 states have internal predecessors, (1544), 0 states have call successors, (0), 0 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 11:11:39,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 834 states to 834 states and 1544 transitions. [2024-12-02 11:11:39,187 INFO L78 Accepts]: Start accepts. Automaton has 834 states and 1544 transitions. Word has length 25 [2024-12-02 11:11:39,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:11:39,187 INFO L471 AbstractCegarLoop]: Abstraction has 834 states and 1544 transitions. [2024-12-02 11:11:39,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 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 11:11:39,187 INFO L276 IsEmpty]: Start isEmpty. Operand 834 states and 1544 transitions. [2024-12-02 11:11:39,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-12-02 11:11:39,188 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:11:39,189 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:11:39,189 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 11:11:39,189 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:11:39,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:11:39,190 INFO L85 PathProgramCache]: Analyzing trace with hash 1032471947, now seen corresponding path program 1 times [2024-12-02 11:11:39,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:11:39,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298969967] [2024-12-02 11:11:39,190 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:11:39,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:11:39,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:11:39,386 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 11:11:39,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:11:39,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298969967] [2024-12-02 11:11:39,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298969967] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:11:39,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:11:39,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 11:11:39,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731292350] [2024-12-02 11:11:39,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:11:39,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 11:11:39,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:11:39,387 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 11:11:39,387 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:11:39,387 INFO L87 Difference]: Start difference. First operand 834 states and 1544 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 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 11:11:39,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:11:39,643 INFO L93 Difference]: Finished difference Result 1264 states and 2224 transitions. [2024-12-02 11:11:39,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 11:11:39,644 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2024-12-02 11:11:39,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:11:39,648 INFO L225 Difference]: With dead ends: 1264 [2024-12-02 11:11:39,648 INFO L226 Difference]: Without dead ends: 1221 [2024-12-02 11:11:39,649 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2024-12-02 11:11:39,650 INFO L435 NwaCegarLoop]: 1540 mSDtfsCounter, 7906 mSDsluCounter, 1485 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7906 SdHoareTripleChecker+Valid, 3025 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:11:39,650 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7906 Valid, 3025 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:11:39,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1221 states. [2024-12-02 11:11:39,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1221 to 875. [2024-12-02 11:11:39,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 875 states, 873 states have (on average 1.843069873997709) internal successors, (1609), 874 states have internal predecessors, (1609), 0 states have call successors, (0), 0 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 11:11:39,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 875 states to 875 states and 1609 transitions. [2024-12-02 11:11:39,669 INFO L78 Accepts]: Start accepts. Automaton has 875 states and 1609 transitions. Word has length 55 [2024-12-02 11:11:39,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:11:39,669 INFO L471 AbstractCegarLoop]: Abstraction has 875 states and 1609 transitions. [2024-12-02 11:11:39,669 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 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 11:11:39,669 INFO L276 IsEmpty]: Start isEmpty. Operand 875 states and 1609 transitions. [2024-12-02 11:11:39,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-12-02 11:11:39,671 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:11:39,671 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:11:39,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 11:11:39,671 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:11:39,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:11:39,672 INFO L85 PathProgramCache]: Analyzing trace with hash -1347601061, now seen corresponding path program 1 times [2024-12-02 11:11:39,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:11:39,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578756222] [2024-12-02 11:11:39,672 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:11:39,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:11:39,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:11:39,742 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 11:11:39,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:11:39,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578756222] [2024-12-02 11:11:39,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578756222] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:11:39,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:11:39,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:11:39,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254156137] [2024-12-02 11:11:39,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:11:39,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:11:39,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:11:39,744 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:11:39,744 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:11:39,744 INFO L87 Difference]: Start difference. First operand 875 states and 1609 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:11:39,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:11:39,771 INFO L93 Difference]: Finished difference Result 1032 states and 1856 transitions. [2024-12-02 11:11:39,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:11:39,771 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2024-12-02 11:11:39,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:11:39,775 INFO L225 Difference]: With dead ends: 1032 [2024-12-02 11:11:39,775 INFO L226 Difference]: Without dead ends: 948 [2024-12-02 11:11:39,775 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 11:11:39,776 INFO L435 NwaCegarLoop]: 1542 mSDtfsCounter, 1482 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1482 SdHoareTripleChecker+Valid, 1605 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:11:39,776 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1482 Valid, 1605 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:11:39,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 948 states. [2024-12-02 11:11:39,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 948 to 946. [2024-12-02 11:11:39,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 946 states, 944 states have (on average 1.8209745762711864) internal successors, (1719), 945 states have internal predecessors, (1719), 0 states have call successors, (0), 0 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 11:11:39,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 946 states to 946 states and 1719 transitions. [2024-12-02 11:11:39,794 INFO L78 Accepts]: Start accepts. Automaton has 946 states and 1719 transitions. Word has length 57 [2024-12-02 11:11:39,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:11:39,794 INFO L471 AbstractCegarLoop]: Abstraction has 946 states and 1719 transitions. [2024-12-02 11:11:39,794 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:11:39,795 INFO L276 IsEmpty]: Start isEmpty. Operand 946 states and 1719 transitions. [2024-12-02 11:11:39,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-12-02 11:11:39,796 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:11:39,796 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:11:39,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 11:11:39,796 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:11:39,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:11:39,797 INFO L85 PathProgramCache]: Analyzing trace with hash -1281107549, now seen corresponding path program 1 times [2024-12-02 11:11:39,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:11:39,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830924319] [2024-12-02 11:11:39,797 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:11:39,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:11:39,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:11:40,111 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 11:11:40,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:11:40,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830924319] [2024-12-02 11:11:40,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830924319] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:11:40,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:11:40,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 11:11:40,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611468055] [2024-12-02 11:11:40,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:11:40,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 11:11:40,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:11:40,113 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 11:11:40,113 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:11:40,113 INFO L87 Difference]: Start difference. First operand 946 states and 1719 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:11:40,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:11:40,288 INFO L93 Difference]: Finished difference Result 1103 states and 1963 transitions. [2024-12-02 11:11:40,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 11:11:40,289 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2024-12-02 11:11:40,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:11:40,292 INFO L225 Difference]: With dead ends: 1103 [2024-12-02 11:11:40,292 INFO L226 Difference]: Without dead ends: 948 [2024-12-02 11:11:40,293 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-12-02 11:11:40,294 INFO L435 NwaCegarLoop]: 1537 mSDtfsCounter, 7449 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7449 SdHoareTripleChecker+Valid, 1794 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:11:40,294 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7449 Valid, 1794 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:11:40,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 948 states. [2024-12-02 11:11:40,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 948 to 946. [2024-12-02 11:11:40,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 946 states, 944 states have (on average 1.81885593220339) internal successors, (1717), 945 states have internal predecessors, (1717), 0 states have call successors, (0), 0 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 11:11:40,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 946 states to 946 states and 1717 transitions. [2024-12-02 11:11:40,311 INFO L78 Accepts]: Start accepts. Automaton has 946 states and 1717 transitions. Word has length 57 [2024-12-02 11:11:40,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:11:40,311 INFO L471 AbstractCegarLoop]: Abstraction has 946 states and 1717 transitions. [2024-12-02 11:11:40,312 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:11:40,312 INFO L276 IsEmpty]: Start isEmpty. Operand 946 states and 1717 transitions. [2024-12-02 11:11:40,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-12-02 11:11:40,313 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:11:40,313 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:11:40,313 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 11:11:40,313 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:11:40,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:11:40,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1474351433, now seen corresponding path program 1 times [2024-12-02 11:11:40,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:11:40,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007375476] [2024-12-02 11:11:40,314 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:11:40,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:11:40,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:11:40,547 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 11:11:40,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:11:40,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007375476] [2024-12-02 11:11:40,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007375476] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:11:40,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:11:40,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 11:11:40,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111231505] [2024-12-02 11:11:40,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:11:40,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 11:11:40,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:11:40,548 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 11:11:40,548 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 11:11:40,549 INFO L87 Difference]: Start difference. First operand 946 states and 1717 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:11:40,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:11:40,608 INFO L93 Difference]: Finished difference Result 954 states and 1726 transitions. [2024-12-02 11:11:40,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 11:11:40,608 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2024-12-02 11:11:40,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:11:40,613 INFO L225 Difference]: With dead ends: 954 [2024-12-02 11:11:40,613 INFO L226 Difference]: Without dead ends: 952 [2024-12-02 11:11:40,613 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 11:11:40,614 INFO L435 NwaCegarLoop]: 1538 mSDtfsCounter, 0 mSDsluCounter, 9215 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10753 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:11:40,614 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10753 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:11:40,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 952 states. [2024-12-02 11:11:40,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 952 to 952. [2024-12-02 11:11:40,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 952 states, 950 states have (on average 1.8126315789473684) internal successors, (1722), 951 states have internal predecessors, (1722), 0 states have call successors, (0), 0 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 11:11:40,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 952 states to 952 states and 1722 transitions. [2024-12-02 11:11:40,630 INFO L78 Accepts]: Start accepts. Automaton has 952 states and 1722 transitions. Word has length 58 [2024-12-02 11:11:40,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:11:40,630 INFO L471 AbstractCegarLoop]: Abstraction has 952 states and 1722 transitions. [2024-12-02 11:11:40,630 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:11:40,630 INFO L276 IsEmpty]: Start isEmpty. Operand 952 states and 1722 transitions. [2024-12-02 11:11:40,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-12-02 11:11:40,631 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:11:40,631 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:11:40,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 11:11:40,631 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:11:40,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:11:40,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1913192451, now seen corresponding path program 1 times [2024-12-02 11:11:40,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:11:40,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782351372] [2024-12-02 11:11:40,632 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:11:40,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:11:40,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:11:40,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:11:40,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:11:40,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782351372] [2024-12-02 11:11:40,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782351372] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:11:40,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:11:40,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:11:40,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23453270] [2024-12-02 11:11:40,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:11:40,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:11:40,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:11:40,688 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:11:40,688 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:11:40,688 INFO L87 Difference]: Start difference. First operand 952 states and 1722 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:11:40,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:11:40,712 INFO L93 Difference]: Finished difference Result 1127 states and 1988 transitions. [2024-12-02 11:11:40,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:11:40,712 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2024-12-02 11:11:40,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:11:40,716 INFO L225 Difference]: With dead ends: 1127 [2024-12-02 11:11:40,716 INFO L226 Difference]: Without dead ends: 1037 [2024-12-02 11:11:40,717 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 11:11:40,717 INFO L435 NwaCegarLoop]: 1596 mSDtfsCounter, 1496 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1496 SdHoareTripleChecker+Valid, 1665 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:11:40,717 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1496 Valid, 1665 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:11:40,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1037 states. [2024-12-02 11:11:40,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1037 to 1035. [2024-12-02 11:11:40,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1035 states, 1033 states have (on average 1.78702807357212) internal successors, (1846), 1034 states have internal predecessors, (1846), 0 states have call successors, (0), 0 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 11:11:40,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1035 states to 1035 states and 1846 transitions. [2024-12-02 11:11:40,772 INFO L78 Accepts]: Start accepts. Automaton has 1035 states and 1846 transitions. Word has length 59 [2024-12-02 11:11:40,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:11:40,774 INFO L471 AbstractCegarLoop]: Abstraction has 1035 states and 1846 transitions. [2024-12-02 11:11:40,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:11:40,774 INFO L276 IsEmpty]: Start isEmpty. Operand 1035 states and 1846 transitions. [2024-12-02 11:11:40,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-12-02 11:11:40,775 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:11:40,775 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:11:40,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 11:11:40,776 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:11:40,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:11:40,777 INFO L85 PathProgramCache]: Analyzing trace with hash -2117918461, now seen corresponding path program 1 times [2024-12-02 11:11:40,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:11:40,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553619021] [2024-12-02 11:11:40,777 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:11:40,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:11:40,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:11:40,883 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 11:11:40,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:11:40,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553619021] [2024-12-02 11:11:40,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553619021] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:11:40,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:11:40,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:11:40,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640219819] [2024-12-02 11:11:40,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:11:40,885 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:11:40,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:11:40,886 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:11:40,887 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:11:40,887 INFO L87 Difference]: Start difference. First operand 1035 states and 1846 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:11:40,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:11:40,934 INFO L93 Difference]: Finished difference Result 1493 states and 2538 transitions. [2024-12-02 11:11:40,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:11:40,935 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2024-12-02 11:11:40,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:11:40,941 INFO L225 Difference]: With dead ends: 1493 [2024-12-02 11:11:40,941 INFO L226 Difference]: Without dead ends: 1252 [2024-12-02 11:11:40,942 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 11:11:40,943 INFO L435 NwaCegarLoop]: 1598 mSDtfsCounter, 1494 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1494 SdHoareTripleChecker+Valid, 1671 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:11:40,943 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1494 Valid, 1671 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:11:40,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1252 states. [2024-12-02 11:11:40,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1252 to 1250. [2024-12-02 11:11:40,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1250 states, 1248 states have (on average 1.733974358974359) internal successors, (2164), 1249 states have internal predecessors, (2164), 0 states have call successors, (0), 0 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 11:11:40,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 2164 transitions. [2024-12-02 11:11:40,996 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 2164 transitions. Word has length 59 [2024-12-02 11:11:40,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:11:40,997 INFO L471 AbstractCegarLoop]: Abstraction has 1250 states and 2164 transitions. [2024-12-02 11:11:40,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:11:40,997 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 2164 transitions. [2024-12-02 11:11:40,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-12-02 11:11:40,997 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:11:40,998 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:11:40,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 11:11:40,998 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:11:40,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:11:40,998 INFO L85 PathProgramCache]: Analyzing trace with hash -879656445, now seen corresponding path program 1 times [2024-12-02 11:11:40,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:11:40,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970714275] [2024-12-02 11:11:40,999 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:11:40,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:11:41,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:11:41,081 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 11:11:41,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:11:41,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970714275] [2024-12-02 11:11:41,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970714275] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:11:41,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:11:41,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:11:41,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153303261] [2024-12-02 11:11:41,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:11:41,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:11:41,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:11:41,086 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:11:41,086 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:11:41,086 INFO L87 Difference]: Start difference. First operand 1250 states and 2164 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:11:41,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:11:41,128 INFO L93 Difference]: Finished difference Result 2114 states and 3450 transitions. [2024-12-02 11:11:41,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:11:41,129 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2024-12-02 11:11:41,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:11:41,133 INFO L225 Difference]: With dead ends: 2114 [2024-12-02 11:11:41,134 INFO L226 Difference]: Without dead ends: 1658 [2024-12-02 11:11:41,135 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 11:11:41,135 INFO L435 NwaCegarLoop]: 1596 mSDtfsCounter, 1492 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1492 SdHoareTripleChecker+Valid, 1673 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:11:41,135 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1492 Valid, 1673 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:11:41,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1658 states. [2024-12-02 11:11:41,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1658 to 1656. [2024-12-02 11:11:41,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1656 states, 1654 states have (on average 1.663845223700121) internal successors, (2752), 1655 states have internal predecessors, (2752), 0 states have call successors, (0), 0 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 11:11:41,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1656 states to 1656 states and 2752 transitions. [2024-12-02 11:11:41,176 INFO L78 Accepts]: Start accepts. Automaton has 1656 states and 2752 transitions. Word has length 59 [2024-12-02 11:11:41,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:11:41,177 INFO L471 AbstractCegarLoop]: Abstraction has 1656 states and 2752 transitions. [2024-12-02 11:11:41,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:11:41,177 INFO L276 IsEmpty]: Start isEmpty. Operand 1656 states and 2752 transitions. [2024-12-02 11:11:41,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-12-02 11:11:41,177 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:11:41,177 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:11:41,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 11:11:41,178 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:11:41,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:11:41,178 INFO L85 PathProgramCache]: Analyzing trace with hash 1199842051, now seen corresponding path program 1 times [2024-12-02 11:11:41,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:11:41,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431466039] [2024-12-02 11:11:41,178 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:11:41,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:11:41,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:11:41,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:11:41,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:11:41,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431466039] [2024-12-02 11:11:41,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431466039] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:11:41,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:11:41,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:11:41,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753453208] [2024-12-02 11:11:41,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:11:41,236 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:11:41,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:11:41,236 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:11:41,236 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:11:41,236 INFO L87 Difference]: Start difference. First operand 1656 states and 2752 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:11:41,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:11:41,273 INFO L93 Difference]: Finished difference Result 3284 states and 5130 transitions. [2024-12-02 11:11:41,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:11:41,273 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2024-12-02 11:11:41,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:11:41,279 INFO L225 Difference]: With dead ends: 3284 [2024-12-02 11:11:41,279 INFO L226 Difference]: Without dead ends: 2422 [2024-12-02 11:11:41,281 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 11:11:41,281 INFO L435 NwaCegarLoop]: 1594 mSDtfsCounter, 1490 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1490 SdHoareTripleChecker+Valid, 1675 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:11:41,281 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1490 Valid, 1675 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:11:41,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2422 states. [2024-12-02 11:11:41,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2422 to 2420. [2024-12-02 11:11:41,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2420 states, 2418 states have (on average 1.5847808105872623) internal successors, (3832), 2419 states have internal predecessors, (3832), 0 states have call successors, (0), 0 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 11:11:41,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2420 states to 2420 states and 3832 transitions. [2024-12-02 11:11:41,326 INFO L78 Accepts]: Start accepts. Automaton has 2420 states and 3832 transitions. Word has length 59 [2024-12-02 11:11:41,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:11:41,327 INFO L471 AbstractCegarLoop]: Abstraction has 2420 states and 3832 transitions. [2024-12-02 11:11:41,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:11:41,327 INFO L276 IsEmpty]: Start isEmpty. Operand 2420 states and 3832 transitions. [2024-12-02 11:11:41,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-12-02 11:11:41,327 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:11:41,327 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:11:41,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 11:11:41,328 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:11:41,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:11:41,328 INFO L85 PathProgramCache]: Analyzing trace with hash -1314192381, now seen corresponding path program 1 times [2024-12-02 11:11:41,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:11:41,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875701043] [2024-12-02 11:11:41,328 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:11:41,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:11:41,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:11:41,373 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 11:11:41,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:11:41,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875701043] [2024-12-02 11:11:41,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875701043] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:11:41,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:11:41,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:11:41,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740902174] [2024-12-02 11:11:41,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:11:41,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:11:41,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:11:41,374 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:11:41,374 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:11:41,374 INFO L87 Difference]: Start difference. First operand 2420 states and 3832 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:11:41,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:11:41,423 INFO L93 Difference]: Finished difference Result 5480 states and 8202 transitions. [2024-12-02 11:11:41,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:11:41,423 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2024-12-02 11:11:41,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:11:41,431 INFO L225 Difference]: With dead ends: 5480 [2024-12-02 11:11:41,431 INFO L226 Difference]: Without dead ends: 3854 [2024-12-02 11:11:41,433 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 11:11:41,433 INFO L435 NwaCegarLoop]: 1592 mSDtfsCounter, 1488 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1488 SdHoareTripleChecker+Valid, 1677 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:11:41,434 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1488 Valid, 1677 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:11:41,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3854 states. [2024-12-02 11:11:41,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3854 to 3852. [2024-12-02 11:11:41,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3852 states, 3850 states have (on average 1.5064935064935066) internal successors, (5800), 3851 states have internal predecessors, (5800), 0 states have call successors, (0), 0 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 11:11:41,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3852 states to 3852 states and 5800 transitions. [2024-12-02 11:11:41,505 INFO L78 Accepts]: Start accepts. Automaton has 3852 states and 5800 transitions. Word has length 59 [2024-12-02 11:11:41,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:11:41,505 INFO L471 AbstractCegarLoop]: Abstraction has 3852 states and 5800 transitions. [2024-12-02 11:11:41,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:11:41,505 INFO L276 IsEmpty]: Start isEmpty. Operand 3852 states and 5800 transitions. [2024-12-02 11:11:41,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-12-02 11:11:41,506 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:11:41,506 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:11:41,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 11:11:41,506 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:11:41,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:11:41,506 INFO L85 PathProgramCache]: Analyzing trace with hash -1959060901, now seen corresponding path program 1 times [2024-12-02 11:11:41,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:11:41,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339717611] [2024-12-02 11:11:41,507 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:11:41,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:11:41,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:11:41,645 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 11:11:41,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:11:41,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339717611] [2024-12-02 11:11:41,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339717611] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:11:41,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:11:41,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:11:41,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611447724] [2024-12-02 11:11:41,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:11:41,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:11:41,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:11:41,646 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:11:41,646 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:11:41,646 INFO L87 Difference]: Start difference. First operand 3852 states and 5800 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:11:47,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:11:47,423 INFO L93 Difference]: Finished difference Result 6107 states and 10109 transitions. [2024-12-02 11:11:47,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:11:47,424 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-12-02 11:11:47,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:11:47,433 INFO L225 Difference]: With dead ends: 6107 [2024-12-02 11:11:47,433 INFO L226 Difference]: Without dead ends: 5354 [2024-12-02 11:11:47,434 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:11:47,434 INFO L435 NwaCegarLoop]: 780 mSDtfsCounter, 2389 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 5354 mSolverCounterSat, 1153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2389 SdHoareTripleChecker+Valid, 798 SdHoareTripleChecker+Invalid, 6507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1153 IncrementalHoareTripleChecker+Valid, 5354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2024-12-02 11:11:47,434 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2389 Valid, 798 Invalid, 6507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1153 Valid, 5354 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2024-12-02 11:11:47,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5354 states. [2024-12-02 11:11:47,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5354 to 5354. [2024-12-02 11:11:47,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5354 states, 5352 states have (on average 1.4786995515695067) internal successors, (7914), 5353 states have internal predecessors, (7914), 0 states have call successors, (0), 0 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 11:11:47,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5354 states to 5354 states and 7914 transitions. [2024-12-02 11:11:47,521 INFO L78 Accepts]: Start accepts. Automaton has 5354 states and 7914 transitions. Word has length 67 [2024-12-02 11:11:47,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:11:47,521 INFO L471 AbstractCegarLoop]: Abstraction has 5354 states and 7914 transitions. [2024-12-02 11:11:47,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:11:47,521 INFO L276 IsEmpty]: Start isEmpty. Operand 5354 states and 7914 transitions. [2024-12-02 11:11:47,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-12-02 11:11:47,523 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:11:47,523 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:11:47,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 11:11:47,523 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:11:47,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:11:47,524 INFO L85 PathProgramCache]: Analyzing trace with hash -1793062525, now seen corresponding path program 1 times [2024-12-02 11:11:47,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:11:47,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387649220] [2024-12-02 11:11:47,524 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:11:47,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:11:47,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:11:47,649 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 11:11:47,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:11:47,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387649220] [2024-12-02 11:11:47,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387649220] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:11:47,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:11:47,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 11:11:47,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642773633] [2024-12-02 11:11:47,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:11:47,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 11:11:47,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:11:47,650 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 11:11:47,650 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:11:47,650 INFO L87 Difference]: Start difference. First operand 5354 states and 7914 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 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 11:11:47,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:11:47,944 INFO L93 Difference]: Finished difference Result 20422 states and 29184 transitions. [2024-12-02 11:11:47,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 11:11:47,945 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 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 79 [2024-12-02 11:11:47,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:11:47,991 INFO L225 Difference]: With dead ends: 20422 [2024-12-02 11:11:47,991 INFO L226 Difference]: Without dead ends: 18244 [2024-12-02 11:11:47,997 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 11:11:47,997 INFO L435 NwaCegarLoop]: 1609 mSDtfsCounter, 6314 mSDsluCounter, 2098 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6314 SdHoareTripleChecker+Valid, 3707 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:11:47,998 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6314 Valid, 3707 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:11:48,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18244 states. [2024-12-02 11:11:48,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18244 to 7978. [2024-12-02 11:11:48,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7978 states, 7976 states have (on average 1.45160481444333) internal successors, (11578), 7977 states have internal predecessors, (11578), 0 states have call successors, (0), 0 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 11:11:48,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7978 states to 7978 states and 11578 transitions. [2024-12-02 11:11:48,306 INFO L78 Accepts]: Start accepts. Automaton has 7978 states and 11578 transitions. Word has length 79 [2024-12-02 11:11:48,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:11:48,306 INFO L471 AbstractCegarLoop]: Abstraction has 7978 states and 11578 transitions. [2024-12-02 11:11:48,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 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 11:11:48,306 INFO L276 IsEmpty]: Start isEmpty. Operand 7978 states and 11578 transitions. [2024-12-02 11:11:48,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-12-02 11:11:48,308 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:11:48,308 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:11:48,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 11:11:48,309 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:11:48,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:11:48,309 INFO L85 PathProgramCache]: Analyzing trace with hash -1529206141, now seen corresponding path program 1 times [2024-12-02 11:11:48,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:11:48,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344594003] [2024-12-02 11:11:48,309 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:11:48,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:11:48,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:11:48,477 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-12-02 11:11:48,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:11:48,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344594003] [2024-12-02 11:11:48,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344594003] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:11:48,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:11:48,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 11:11:48,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930480625] [2024-12-02 11:11:48,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:11:48,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 11:11:48,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:11:48,478 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 11:11:48,479 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:11:48,479 INFO L87 Difference]: Start difference. First operand 7978 states and 11578 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:11:48,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:11:48,944 INFO L93 Difference]: Finished difference Result 23478 states and 33472 transitions. [2024-12-02 11:11:48,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 11:11:48,945 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2024-12-02 11:11:48,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:11:48,991 INFO L225 Difference]: With dead ends: 23478 [2024-12-02 11:11:48,991 INFO L226 Difference]: Without dead ends: 20420 [2024-12-02 11:11:48,997 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 11:11:48,998 INFO L435 NwaCegarLoop]: 1608 mSDtfsCounter, 6314 mSDsluCounter, 2087 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6314 SdHoareTripleChecker+Valid, 3695 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:11:48,998 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6314 Valid, 3695 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:11:49,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20420 states. [2024-12-02 11:11:49,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20420 to 12122. [2024-12-02 11:11:49,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12122 states, 12120 states have (on average 1.4318481848184819) internal successors, (17354), 12121 states have internal predecessors, (17354), 0 states have call successors, (0), 0 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 11:11:49,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12122 states to 12122 states and 17354 transitions. [2024-12-02 11:11:49,362 INFO L78 Accepts]: Start accepts. Automaton has 12122 states and 17354 transitions. Word has length 79 [2024-12-02 11:11:49,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:11:49,362 INFO L471 AbstractCegarLoop]: Abstraction has 12122 states and 17354 transitions. [2024-12-02 11:11:49,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:11:49,363 INFO L276 IsEmpty]: Start isEmpty. Operand 12122 states and 17354 transitions. [2024-12-02 11:11:49,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-12-02 11:11:49,365 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:11:49,365 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:11:49,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 11:11:49,365 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:11:49,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:11:49,366 INFO L85 PathProgramCache]: Analyzing trace with hash -290944125, now seen corresponding path program 1 times [2024-12-02 11:11:49,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:11:49,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869281924] [2024-12-02 11:11:49,366 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:11:49,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:11:49,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:11:49,555 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-12-02 11:11:49,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:11:49,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869281924] [2024-12-02 11:11:49,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869281924] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:11:49,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:11:49,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 11:11:49,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305707700] [2024-12-02 11:11:49,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:11:49,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 11:11:49,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:11:49,556 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 11:11:49,556 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:11:49,556 INFO L87 Difference]: Start difference. First operand 12122 states and 17354 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:11:50,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:11:50,114 INFO L93 Difference]: Finished difference Result 26534 states and 37744 transitions. [2024-12-02 11:11:50,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 11:11:50,114 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2024-12-02 11:11:50,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:11:50,153 INFO L225 Difference]: With dead ends: 26534 [2024-12-02 11:11:50,153 INFO L226 Difference]: Without dead ends: 23476 [2024-12-02 11:11:50,161 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 11:11:50,161 INFO L435 NwaCegarLoop]: 1606 mSDtfsCounter, 6339 mSDsluCounter, 2036 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6339 SdHoareTripleChecker+Valid, 3642 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 11:11:50,161 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6339 Valid, 3642 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:11:50,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23476 states. [2024-12-02 11:11:50,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23476 to 15178. [2024-12-02 11:11:50,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15178 states, 15176 states have (on average 1.4250131787032156) internal successors, (21626), 15177 states have internal predecessors, (21626), 0 states have call successors, (0), 0 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 11:11:50,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15178 states to 15178 states and 21626 transitions. [2024-12-02 11:11:50,542 INFO L78 Accepts]: Start accepts. Automaton has 15178 states and 21626 transitions. Word has length 79 [2024-12-02 11:11:50,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:11:50,542 INFO L471 AbstractCegarLoop]: Abstraction has 15178 states and 21626 transitions. [2024-12-02 11:11:50,543 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:11:50,543 INFO L276 IsEmpty]: Start isEmpty. Operand 15178 states and 21626 transitions. [2024-12-02 11:11:50,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-12-02 11:11:50,545 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:11:50,545 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:11:50,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 11:11:50,546 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:11:50,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:11:50,546 INFO L85 PathProgramCache]: Analyzing trace with hash 1788554371, now seen corresponding path program 1 times [2024-12-02 11:11:50,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:11:50,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737556465] [2024-12-02 11:11:50,546 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:11:50,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:11:50,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:11:50,749 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-12-02 11:11:50,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:11:50,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737556465] [2024-12-02 11:11:50,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737556465] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:11:50,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:11:50,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 11:11:50,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787576256] [2024-12-02 11:11:50,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:11:50,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 11:11:50,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:11:50,751 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 11:11:50,751 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:11:50,751 INFO L87 Difference]: Start difference. First operand 15178 states and 21626 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:11:51,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:11:51,441 INFO L93 Difference]: Finished difference Result 29590 states and 42016 transitions. [2024-12-02 11:11:51,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 11:11:51,442 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2024-12-02 11:11:51,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:11:51,464 INFO L225 Difference]: With dead ends: 29590 [2024-12-02 11:11:51,464 INFO L226 Difference]: Without dead ends: 26532 [2024-12-02 11:11:51,470 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 11:11:51,471 INFO L435 NwaCegarLoop]: 1604 mSDtfsCounter, 6378 mSDsluCounter, 2032 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6378 SdHoareTripleChecker+Valid, 3636 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:11:51,471 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6378 Valid, 3636 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:11:51,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26532 states. [2024-12-02 11:11:51,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26532 to 18234. [2024-12-02 11:11:51,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18234 states, 18232 states have (on average 1.420469504168495) internal successors, (25898), 18233 states have internal predecessors, (25898), 0 states have call successors, (0), 0 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 11:11:51,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18234 states to 18234 states and 25898 transitions. [2024-12-02 11:11:51,869 INFO L78 Accepts]: Start accepts. Automaton has 18234 states and 25898 transitions. Word has length 79 [2024-12-02 11:11:51,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:11:51,869 INFO L471 AbstractCegarLoop]: Abstraction has 18234 states and 25898 transitions. [2024-12-02 11:11:51,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:11:51,869 INFO L276 IsEmpty]: Start isEmpty. Operand 18234 states and 25898 transitions. [2024-12-02 11:11:51,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-12-02 11:11:51,871 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:11:51,871 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:11:51,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 11:11:51,871 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:11:51,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:11:51,872 INFO L85 PathProgramCache]: Analyzing trace with hash -725480061, now seen corresponding path program 1 times [2024-12-02 11:11:51,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:11:51,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589302506] [2024-12-02 11:11:51,872 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:11:51,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:11:51,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:11:51,983 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-12-02 11:11:51,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:11:51,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589302506] [2024-12-02 11:11:51,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589302506] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:11:51,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:11:51,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 11:11:51,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278289054] [2024-12-02 11:11:51,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:11:51,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 11:11:51,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:11:51,984 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 11:11:51,984 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:11:51,984 INFO L87 Difference]: Start difference. First operand 18234 states and 25898 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 0 states have call successors, (0), 0 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 11:11:52,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:11:52,702 INFO L93 Difference]: Finished difference Result 32646 states and 46288 transitions. [2024-12-02 11:11:52,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 11:11:52,703 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 0 states have call successors, (0), 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 79 [2024-12-02 11:11:52,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:11:52,727 INFO L225 Difference]: With dead ends: 32646 [2024-12-02 11:11:52,728 INFO L226 Difference]: Without dead ends: 29588 [2024-12-02 11:11:52,735 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-12-02 11:11:52,735 INFO L435 NwaCegarLoop]: 1603 mSDtfsCounter, 6334 mSDsluCounter, 2085 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6334 SdHoareTripleChecker+Valid, 3688 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:11:52,735 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6334 Valid, 3688 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:11:52,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29588 states. [2024-12-02 11:11:53,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29588 to 21290. [2024-12-02 11:11:53,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21290 states, 21288 states have (on average 1.4172303645246147) internal successors, (30170), 21289 states have internal predecessors, (30170), 0 states have call successors, (0), 0 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 11:11:53,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21290 states to 21290 states and 30170 transitions. [2024-12-02 11:11:53,232 INFO L78 Accepts]: Start accepts. Automaton has 21290 states and 30170 transitions. Word has length 79 [2024-12-02 11:11:53,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:11:53,232 INFO L471 AbstractCegarLoop]: Abstraction has 21290 states and 30170 transitions. [2024-12-02 11:11:53,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 0 states have call successors, (0), 0 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 11:11:53,232 INFO L276 IsEmpty]: Start isEmpty. Operand 21290 states and 30170 transitions. [2024-12-02 11:11:53,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-12-02 11:11:53,234 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:11:53,234 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:11:53,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 11:11:53,234 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:11:53,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:11:53,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1265022664, now seen corresponding path program 1 times [2024-12-02 11:11:53,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:11:53,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314810686] [2024-12-02 11:11:53,235 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:11:53,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:11:53,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:11:53,324 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:11:53,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:11:53,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314810686] [2024-12-02 11:11:53,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314810686] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:11:53,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:11:53,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:11:53,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944805274] [2024-12-02 11:11:53,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:11:53,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:11:53,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:11:53,325 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:11:53,325 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:11:53,325 INFO L87 Difference]: Start difference. First operand 21290 states and 30170 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 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 11:11:53,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:11:53,802 INFO L93 Difference]: Finished difference Result 40286 states and 56748 transitions. [2024-12-02 11:11:53,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:11:53,802 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 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 11:11:53,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:11:53,818 INFO L225 Difference]: With dead ends: 40286 [2024-12-02 11:11:53,818 INFO L226 Difference]: Without dead ends: 21292 [2024-12-02 11:11:53,826 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 11:11:53,827 INFO L435 NwaCegarLoop]: 1579 mSDtfsCounter, 45 mSDsluCounter, 1532 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 3111 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:11:53,827 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 3111 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:11:53,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21292 states. [2024-12-02 11:11:54,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21292 to 21290. [2024-12-02 11:11:54,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21290 states, 21288 states have (on average 1.403325817361894) internal successors, (29874), 21289 states have internal predecessors, (29874), 0 states have call successors, (0), 0 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 11:11:54,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21290 states to 21290 states and 29874 transitions. [2024-12-02 11:11:54,295 INFO L78 Accepts]: Start accepts. Automaton has 21290 states and 29874 transitions. Word has length 80 [2024-12-02 11:11:54,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:11:54,295 INFO L471 AbstractCegarLoop]: Abstraction has 21290 states and 29874 transitions. [2024-12-02 11:11:54,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 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 11:11:54,295 INFO L276 IsEmpty]: Start isEmpty. Operand 21290 states and 29874 transitions. [2024-12-02 11:11:54,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-12-02 11:11:54,297 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:11:54,297 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:11:54,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 11:11:54,298 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:11:54,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:11:54,298 INFO L85 PathProgramCache]: Analyzing trace with hash -2037489509, now seen corresponding path program 1 times [2024-12-02 11:11:54,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:11:54,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445490340] [2024-12-02 11:11:54,299 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:11:54,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:11:54,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:11:54,390 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:11:54,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:11:54,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445490340] [2024-12-02 11:11:54,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445490340] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:11:54,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:11:54,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:11:54,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187301836] [2024-12-02 11:11:54,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:11:54,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:11:54,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:11:54,391 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:11:54,391 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:11:54,391 INFO L87 Difference]: Start difference. First operand 21290 states and 29874 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 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 11:11:54,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:11:54,658 INFO L93 Difference]: Finished difference Result 28386 states and 39777 transitions. [2024-12-02 11:11:54,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:11:54,659 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 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 11:11:54,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:11:54,669 INFO L225 Difference]: With dead ends: 28386 [2024-12-02 11:11:54,669 INFO L226 Difference]: Without dead ends: 9392 [2024-12-02 11:11:54,682 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:11:54,682 INFO L435 NwaCegarLoop]: 1577 mSDtfsCounter, 39 mSDsluCounter, 1531 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 3108 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:11:54,683 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 3108 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:11:54,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9392 states. [2024-12-02 11:11:54,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9392 to 9383. [2024-12-02 11:11:54,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9383 states, 9381 states have (on average 1.4266069715382155) internal successors, (13383), 9382 states have internal predecessors, (13383), 0 states have call successors, (0), 0 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 11:11:54,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9383 states to 9383 states and 13383 transitions. [2024-12-02 11:11:54,908 INFO L78 Accepts]: Start accepts. Automaton has 9383 states and 13383 transitions. Word has length 81 [2024-12-02 11:11:54,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:11:54,908 INFO L471 AbstractCegarLoop]: Abstraction has 9383 states and 13383 transitions. [2024-12-02 11:11:54,908 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 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 11:11:54,908 INFO L276 IsEmpty]: Start isEmpty. Operand 9383 states and 13383 transitions. [2024-12-02 11:11:54,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-12-02 11:11:54,910 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:11:54,910 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:11:54,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 11:11:54,910 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:11:54,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:11:54,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1483523354, now seen corresponding path program 1 times [2024-12-02 11:11:54,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:11:54,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046524717] [2024-12-02 11:11:54,911 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:11:54,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:11:54,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:11:55,030 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:11:55,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:11:55,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046524717] [2024-12-02 11:11:55,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046524717] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:11:55,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:11:55,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:11:55,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982595361] [2024-12-02 11:11:55,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:11:55,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:11:55,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:11:55,032 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:11:55,032 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:11:55,032 INFO L87 Difference]: Start difference. First operand 9383 states and 13383 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 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 11:11:55,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:11:55,172 INFO L93 Difference]: Finished difference Result 12923 states and 18273 transitions. [2024-12-02 11:11:55,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:11:55,172 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 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 11:11:55,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:11:55,180 INFO L225 Difference]: With dead ends: 12923 [2024-12-02 11:11:55,180 INFO L226 Difference]: Without dead ends: 5849 [2024-12-02 11:11:55,186 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 11:11:55,187 INFO L435 NwaCegarLoop]: 1571 mSDtfsCounter, 41 mSDsluCounter, 1516 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 3087 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:11:55,187 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 3087 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:11:55,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5849 states. [2024-12-02 11:11:55,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5849 to 5847. [2024-12-02 11:11:55,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5847 states, 5845 states have (on average 1.4444824636441402) internal successors, (8443), 5846 states have internal predecessors, (8443), 0 states have call successors, (0), 0 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 11:11:55,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5847 states to 5847 states and 8443 transitions. [2024-12-02 11:11:55,313 INFO L78 Accepts]: Start accepts. Automaton has 5847 states and 8443 transitions. Word has length 82 [2024-12-02 11:11:55,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:11:55,313 INFO L471 AbstractCegarLoop]: Abstraction has 5847 states and 8443 transitions. [2024-12-02 11:11:55,313 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 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 11:11:55,313 INFO L276 IsEmpty]: Start isEmpty. Operand 5847 states and 8443 transitions. [2024-12-02 11:11:55,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-12-02 11:11:55,314 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:11:55,314 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:11:55,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 11:11:55,314 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:11:55,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:11:55,314 INFO L85 PathProgramCache]: Analyzing trace with hash -1068531220, now seen corresponding path program 1 times [2024-12-02 11:11:55,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:11:55,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745144455] [2024-12-02 11:11:55,314 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:11:55,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:11:55,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:11:55,397 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:11:55,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:11:55,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745144455] [2024-12-02 11:11:55,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745144455] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:11:55,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:11:55,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:11:55,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711504260] [2024-12-02 11:11:55,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:11:55,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:11:55,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:11:55,398 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:11:55,398 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:11:55,398 INFO L87 Difference]: Start difference. First operand 5847 states and 8443 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 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 11:11:55,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:11:55,459 INFO L93 Difference]: Finished difference Result 7619 states and 10863 transitions. [2024-12-02 11:11:55,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:11:55,460 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 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 11:11:55,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:11:55,464 INFO L225 Difference]: With dead ends: 7619 [2024-12-02 11:11:55,464 INFO L226 Difference]: Without dead ends: 4081 [2024-12-02 11:11:55,466 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 11:11:55,467 INFO L435 NwaCegarLoop]: 1564 mSDtfsCounter, 38 mSDsluCounter, 1508 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 3072 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:11:55,467 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 3072 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:11:55,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4081 states. [2024-12-02 11:11:55,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4081 to 4079. [2024-12-02 11:11:55,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4079 states, 4077 states have (on average 1.4714250674515574) internal successors, (5999), 4078 states have internal predecessors, (5999), 0 states have call successors, (0), 0 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 11:11:55,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4079 states to 4079 states and 5999 transitions. [2024-12-02 11:11:55,555 INFO L78 Accepts]: Start accepts. Automaton has 4079 states and 5999 transitions. Word has length 84 [2024-12-02 11:11:55,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:11:55,555 INFO L471 AbstractCegarLoop]: Abstraction has 4079 states and 5999 transitions. [2024-12-02 11:11:55,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 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 11:11:55,555 INFO L276 IsEmpty]: Start isEmpty. Operand 4079 states and 5999 transitions. [2024-12-02 11:11:55,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-12-02 11:11:55,556 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:11:55,556 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:11:55,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 11:11:55,556 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:11:55,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:11:55,557 INFO L85 PathProgramCache]: Analyzing trace with hash -2111828674, now seen corresponding path program 1 times [2024-12-02 11:11:55,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:11:55,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810698519] [2024-12-02 11:11:55,557 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:11:55,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:11:55,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:11:55,664 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:11:55,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:11:55,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810698519] [2024-12-02 11:11:55,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810698519] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:11:55,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:11:55,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:11:55,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298313580] [2024-12-02 11:11:55,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:11:55,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:11:55,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:11:55,666 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:11:55,666 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:11:55,666 INFO L87 Difference]: Start difference. First operand 4079 states and 5999 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 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 11:11:55,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:11:55,728 INFO L93 Difference]: Finished difference Result 4967 states and 7197 transitions. [2024-12-02 11:11:55,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:11:55,728 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 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 11:11:55,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:11:55,732 INFO L225 Difference]: With dead ends: 4967 [2024-12-02 11:11:55,732 INFO L226 Difference]: Without dead ends: 3197 [2024-12-02 11:11:55,733 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 11:11:55,734 INFO L435 NwaCegarLoop]: 1557 mSDtfsCounter, 35 mSDsluCounter, 1500 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 3057 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:11:55,734 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 3057 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:11:55,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3197 states. [2024-12-02 11:11:55,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3197 to 3195. [2024-12-02 11:11:55,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3195 states, 3193 states have (on average 1.5001565925461948) internal successors, (4790), 3194 states have internal predecessors, (4790), 0 states have call successors, (0), 0 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 11:11:55,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3195 states to 3195 states and 4790 transitions. [2024-12-02 11:11:55,792 INFO L78 Accepts]: Start accepts. Automaton has 3195 states and 4790 transitions. Word has length 86 [2024-12-02 11:11:55,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:11:55,792 INFO L471 AbstractCegarLoop]: Abstraction has 3195 states and 4790 transitions. [2024-12-02 11:11:55,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 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 11:11:55,792 INFO L276 IsEmpty]: Start isEmpty. Operand 3195 states and 4790 transitions. [2024-12-02 11:11:55,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-12-02 11:11:55,793 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:11:55,793 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:11:55,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 11:11:55,794 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:11:55,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:11:55,794 INFO L85 PathProgramCache]: Analyzing trace with hash -1630042352, now seen corresponding path program 1 times [2024-12-02 11:11:55,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:11:55,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718918164] [2024-12-02 11:11:55,794 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:11:55,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:11:55,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:11:56,324 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:11:56,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:11:56,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718918164] [2024-12-02 11:11:56,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718918164] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:11:56,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [911452658] [2024-12-02 11:11:56,324 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:11:56,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:11:56,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:11:56,326 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:11:56,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 11:11:56,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:11:56,445 INFO L256 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 11:11:56,451 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:11:56,998 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:11:56,999 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:11:57,924 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:11:57,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [911452658] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:11:57,924 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:11:57,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2024-12-02 11:11:57,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7597733] [2024-12-02 11:11:57,924 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:11:57,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-12-02 11:11:57,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:11:57,925 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-12-02 11:11:57,925 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=524, Unknown=0, NotChecked=0, Total=600 [2024-12-02 11:11:57,925 INFO L87 Difference]: Start difference. First operand 3195 states and 4790 transitions. Second operand has 25 states, 25 states have (on average 8.72) internal successors, (218), 24 states have internal predecessors, (218), 0 states have call successors, (0), 0 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 11:11:59,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:11:59,467 INFO L93 Difference]: Finished difference Result 5527 states and 7905 transitions. [2024-12-02 11:11:59,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-12-02 11:11:59,467 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 8.72) internal successors, (218), 24 states have internal predecessors, (218), 0 states have call successors, (0), 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 11:11:59,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:11:59,471 INFO L225 Difference]: With dead ends: 5527 [2024-12-02 11:11:59,471 INFO L226 Difference]: Without dead ends: 4641 [2024-12-02 11:11:59,473 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 481 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=576, Invalid=2180, Unknown=0, NotChecked=0, Total=2756 [2024-12-02 11:11:59,473 INFO L435 NwaCegarLoop]: 1524 mSDtfsCounter, 20551 mSDsluCounter, 5335 mSDsCounter, 0 mSdLazyCounter, 983 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20551 SdHoareTripleChecker+Valid, 6859 SdHoareTripleChecker+Invalid, 1013 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 983 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 11:11:59,473 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20551 Valid, 6859 Invalid, 1013 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 983 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 11:11:59,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4641 states. [2024-12-02 11:11:59,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4641 to 4611. [2024-12-02 11:11:59,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4611 states, 4609 states have (on average 1.441961379908874) internal successors, (6646), 4610 states have internal predecessors, (6646), 0 states have call successors, (0), 0 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 11:11:59,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4611 states to 4611 states and 6646 transitions. [2024-12-02 11:11:59,540 INFO L78 Accepts]: Start accepts. Automaton has 4611 states and 6646 transitions. Word has length 88 [2024-12-02 11:11:59,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:11:59,540 INFO L471 AbstractCegarLoop]: Abstraction has 4611 states and 6646 transitions. [2024-12-02 11:11:59,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 8.72) internal successors, (218), 24 states have internal predecessors, (218), 0 states have call successors, (0), 0 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 11:11:59,540 INFO L276 IsEmpty]: Start isEmpty. Operand 4611 states and 6646 transitions. [2024-12-02 11:11:59,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-12-02 11:11:59,541 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:11:59,541 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:11:59,550 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 11:11:59,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:11:59,741 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:11:59,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:11:59,742 INFO L85 PathProgramCache]: Analyzing trace with hash 861674437, now seen corresponding path program 1 times [2024-12-02 11:11:59,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:11:59,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642890078] [2024-12-02 11:11:59,742 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:11:59,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:11:59,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:12:00,254 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:12:00,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:12:00,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642890078] [2024-12-02 11:12:00,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642890078] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:12:00,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1720295040] [2024-12-02 11:12:00,255 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:12:00,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:12:00,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:12:00,257 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:12:00,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 11:12:00,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:12:00,389 INFO L256 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-12-02 11:12:00,392 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:12:02,016 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:12:02,016 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:12:04,302 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:12:04,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1720295040] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:12:04,303 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:12:04,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 17, 16] total 39 [2024-12-02 11:12:04,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145725825] [2024-12-02 11:12:04,303 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:12:04,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2024-12-02 11:12:04,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:12:04,304 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2024-12-02 11:12:04,304 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=196, Invalid=1286, Unknown=0, NotChecked=0, Total=1482 [2024-12-02 11:12:04,305 INFO L87 Difference]: Start difference. First operand 4611 states and 6646 transitions. Second operand has 39 states, 39 states have (on average 6.230769230769231) internal successors, (243), 39 states have internal predecessors, (243), 0 states have call successors, (0), 0 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 11:12:21,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:12:21,689 INFO L93 Difference]: Finished difference Result 19646 states and 26443 transitions. [2024-12-02 11:12:21,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2024-12-02 11:12:21,689 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 6.230769230769231) internal successors, (243), 39 states have internal predecessors, (243), 0 states have call successors, (0), 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 89 [2024-12-02 11:12:21,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:12:21,700 INFO L225 Difference]: With dead ends: 19646 [2024-12-02 11:12:21,700 INFO L226 Difference]: Without dead ends: 17358 [2024-12-02 11:12:21,706 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 160 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9441 ImplicationChecksByTransitivity, 15.8s TimeCoverageRelationStatistics Valid=4325, Invalid=21757, Unknown=0, NotChecked=0, Total=26082 [2024-12-02 11:12:21,707 INFO L435 NwaCegarLoop]: 1534 mSDtfsCounter, 26252 mSDsluCounter, 14805 mSDsCounter, 0 mSdLazyCounter, 2571 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26252 SdHoareTripleChecker+Valid, 16339 SdHoareTripleChecker+Invalid, 2695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 2571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:12:21,707 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [26252 Valid, 16339 Invalid, 2695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 2571 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-12-02 11:12:21,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17358 states. [2024-12-02 11:12:22,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17358 to 12498. [2024-12-02 11:12:22,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12498 states, 12496 states have (on average 1.3475512163892445) internal successors, (16839), 12497 states have internal predecessors, (16839), 0 states have call successors, (0), 0 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 11:12:22,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12498 states to 12498 states and 16839 transitions. [2024-12-02 11:12:22,087 INFO L78 Accepts]: Start accepts. Automaton has 12498 states and 16839 transitions. Word has length 89 [2024-12-02 11:12:22,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:12:22,087 INFO L471 AbstractCegarLoop]: Abstraction has 12498 states and 16839 transitions. [2024-12-02 11:12:22,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 6.230769230769231) internal successors, (243), 39 states have internal predecessors, (243), 0 states have call successors, (0), 0 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 11:12:22,088 INFO L276 IsEmpty]: Start isEmpty. Operand 12498 states and 16839 transitions. [2024-12-02 11:12:22,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-12-02 11:12:22,088 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:12:22,088 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:12:22,095 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 11:12:22,289 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:12:22,289 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:12:22,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:12:22,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1002757845, now seen corresponding path program 1 times [2024-12-02 11:12:22,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:12:22,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831515848] [2024-12-02 11:12:22,290 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:12:22,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:12:22,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:12:22,676 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:12:22,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:12:22,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831515848] [2024-12-02 11:12:22,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831515848] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:12:22,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [239154282] [2024-12-02 11:12:22,676 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:12:22,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:12:22,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:12:22,678 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:12:22,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 11:12:22,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:12:22,791 INFO L256 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 11:12:22,794 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:12:23,150 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:12:23,150 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:12:23,833 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:12:23,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [239154282] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:12:23,834 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:12:23,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 20 [2024-12-02 11:12:23,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509657778] [2024-12-02 11:12:23,834 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:12:23,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-12-02 11:12:23,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:12:23,835 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-12-02 11:12:23,835 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=343, Unknown=0, NotChecked=0, Total=420 [2024-12-02 11:12:23,835 INFO L87 Difference]: Start difference. First operand 12498 states and 16839 transitions. Second operand has 21 states, 21 states have (on average 9.761904761904763) internal successors, (205), 20 states have internal predecessors, (205), 0 states have call successors, (0), 0 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 11:12:24,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:12:24,760 INFO L93 Difference]: Finished difference Result 32989 states and 43618 transitions. [2024-12-02 11:12:24,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 11:12:24,760 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 9.761904761904763) internal successors, (205), 20 states have internal predecessors, (205), 0 states have call successors, (0), 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 11:12:24,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:12:24,774 INFO L225 Difference]: With dead ends: 32989 [2024-12-02 11:12:24,774 INFO L226 Difference]: Without dead ends: 23191 [2024-12-02 11:12:24,778 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=228, Invalid=702, Unknown=0, NotChecked=0, Total=930 [2024-12-02 11:12:24,778 INFO L435 NwaCegarLoop]: 1527 mSDtfsCounter, 12352 mSDsluCounter, 3323 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12352 SdHoareTripleChecker+Valid, 4850 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 11:12:24,779 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12352 Valid, 4850 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 11:12:24,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23191 states. [2024-12-02 11:12:25,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23191 to 22943. [2024-12-02 11:12:25,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22943 states, 22941 states have (on average 1.3138921581448062) internal successors, (30142), 22942 states have internal predecessors, (30142), 0 states have call successors, (0), 0 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 11:12:25,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22943 states to 22943 states and 30142 transitions. [2024-12-02 11:12:25,514 INFO L78 Accepts]: Start accepts. Automaton has 22943 states and 30142 transitions. Word has length 91 [2024-12-02 11:12:25,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:12:25,514 INFO L471 AbstractCegarLoop]: Abstraction has 22943 states and 30142 transitions. [2024-12-02 11:12:25,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 9.761904761904763) internal successors, (205), 20 states have internal predecessors, (205), 0 states have call successors, (0), 0 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 11:12:25,515 INFO L276 IsEmpty]: Start isEmpty. Operand 22943 states and 30142 transitions. [2024-12-02 11:12:25,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-12-02 11:12:25,517 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:12:25,517 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:12:25,523 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 11:12:25,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-12-02 11:12:25,717 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:12:25,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:12:25,718 INFO L85 PathProgramCache]: Analyzing trace with hash 1858200354, now seen corresponding path program 1 times [2024-12-02 11:12:25,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:12:25,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344748295] [2024-12-02 11:12:25,718 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:12:25,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:12:25,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:12:26,466 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:12:26,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:12:26,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344748295] [2024-12-02 11:12:26,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344748295] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:12:26,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [426887287] [2024-12-02 11:12:26,466 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:12:26,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:12:26,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:12:26,467 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:12:26,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 11:12:26,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:12:26,589 INFO L256 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-12-02 11:12:26,592 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:12:29,670 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:12:29,671 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:12:33,251 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:12:33,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [426887287] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:12:33,251 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:12:33,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 22, 22] total 54 [2024-12-02 11:12:33,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107150832] [2024-12-02 11:12:33,251 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:12:33,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2024-12-02 11:12:33,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:12:33,252 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2024-12-02 11:12:33,252 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=278, Invalid=2584, Unknown=0, NotChecked=0, Total=2862 [2024-12-02 11:12:33,252 INFO L87 Difference]: Start difference. First operand 22943 states and 30142 transitions. Second operand has 54 states, 54 states have (on average 4.703703703703703) internal successors, (254), 54 states have internal predecessors, (254), 0 states have call successors, (0), 0 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 11:13:32,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:13:32,519 INFO L93 Difference]: Finished difference Result 69034 states and 90225 transitions. [2024-12-02 11:13:32,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 248 states. [2024-12-02 11:13:32,519 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 54 states have (on average 4.703703703703703) internal successors, (254), 54 states have internal predecessors, (254), 0 states have call successors, (0), 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 11:13:32,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:13:32,565 INFO L225 Difference]: With dead ends: 69034 [2024-12-02 11:13:32,565 INFO L226 Difference]: Without dead ends: 59110 [2024-12-02 11:13:32,584 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 442 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 298 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37248 ImplicationChecksByTransitivity, 54.0s TimeCoverageRelationStatistics Valid=16082, Invalid=73618, Unknown=0, NotChecked=0, Total=89700 [2024-12-02 11:13:32,584 INFO L435 NwaCegarLoop]: 1549 mSDtfsCounter, 27310 mSDsluCounter, 25855 mSDsCounter, 0 mSdLazyCounter, 5050 mSolverCounterSat, 165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27310 SdHoareTripleChecker+Valid, 27404 SdHoareTripleChecker+Invalid, 5215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 165 IncrementalHoareTripleChecker+Valid, 5050 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2024-12-02 11:13:32,585 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27310 Valid, 27404 Invalid, 5215 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [165 Valid, 5050 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2024-12-02 11:13:32,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59110 states. [2024-12-02 11:13:33,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59110 to 25323. [2024-12-02 11:13:33,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25323 states, 25321 states have (on average 1.3099008727933337) internal successors, (33168), 25322 states have internal predecessors, (33168), 0 states have call successors, (0), 0 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 11:13:33,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25323 states to 25323 states and 33168 transitions. [2024-12-02 11:13:33,713 INFO L78 Accepts]: Start accepts. Automaton has 25323 states and 33168 transitions. Word has length 92 [2024-12-02 11:13:33,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:13:33,713 INFO L471 AbstractCegarLoop]: Abstraction has 25323 states and 33168 transitions. [2024-12-02 11:13:33,713 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 54 states have (on average 4.703703703703703) internal successors, (254), 54 states have internal predecessors, (254), 0 states have call successors, (0), 0 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 11:13:33,714 INFO L276 IsEmpty]: Start isEmpty. Operand 25323 states and 33168 transitions. [2024-12-02 11:13:33,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-12-02 11:13:33,715 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:13:33,715 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:13:33,722 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-12-02 11:13:33,915 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-12-02 11:13:33,915 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:13:33,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:13:33,916 INFO L85 PathProgramCache]: Analyzing trace with hash -527085058, now seen corresponding path program 1 times [2024-12-02 11:13:33,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:13:33,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212707827] [2024-12-02 11:13:33,916 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:13:33,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:13:33,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:13:34,455 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:13:34,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:13:34,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212707827] [2024-12-02 11:13:34,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212707827] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:13:34,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2079385058] [2024-12-02 11:13:34,455 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:13:34,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:13:34,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:13:34,457 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:13:34,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 11:13:34,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:13:34,586 INFO L256 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-12-02 11:13:34,589 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:13:36,028 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:13:36,028 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:13:38,572 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:13:38,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2079385058] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:13:38,573 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:13:38,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 16, 17] total 43 [2024-12-02 11:13:38,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500859850] [2024-12-02 11:13:38,573 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:13:38,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2024-12-02 11:13:38,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:13:38,574 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2024-12-02 11:13:38,574 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=246, Invalid=1560, Unknown=0, NotChecked=0, Total=1806 [2024-12-02 11:13:38,575 INFO L87 Difference]: Start difference. First operand 25323 states and 33168 transitions. Second operand has 43 states, 43 states have (on average 5.232558139534884) internal successors, (225), 43 states have internal predecessors, (225), 0 states have call successors, (0), 0 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 11:13:41,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:13:41,269 INFO L93 Difference]: Finished difference Result 29233 states and 38283 transitions. [2024-12-02 11:13:41,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-12-02 11:13:41,270 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 5.232558139534884) internal successors, (225), 43 states have internal predecessors, (225), 0 states have call successors, (0), 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 11:13:41,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:13:41,280 INFO L225 Difference]: With dead ends: 29233 [2024-12-02 11:13:41,280 INFO L226 Difference]: Without dead ends: 15695 [2024-12-02 11:13:41,287 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 749 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=892, Invalid=3140, Unknown=0, NotChecked=0, Total=4032 [2024-12-02 11:13:41,287 INFO L435 NwaCegarLoop]: 1503 mSDtfsCounter, 18686 mSDsluCounter, 18041 mSDsCounter, 0 mSdLazyCounter, 879 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18686 SdHoareTripleChecker+Valid, 19544 SdHoareTripleChecker+Invalid, 920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 879 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 11:13:41,288 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18686 Valid, 19544 Invalid, 920 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 879 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 11:13:41,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15695 states. [2024-12-02 11:13:41,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15695 to 15691. [2024-12-02 11:13:41,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15691 states, 15689 states have (on average 1.335904136656256) internal successors, (20959), 15690 states have internal predecessors, (20959), 0 states have call successors, (0), 0 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 11:13:41,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15691 states to 15691 states and 20959 transitions. [2024-12-02 11:13:41,916 INFO L78 Accepts]: Start accepts. Automaton has 15691 states and 20959 transitions. Word has length 92 [2024-12-02 11:13:41,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:13:41,917 INFO L471 AbstractCegarLoop]: Abstraction has 15691 states and 20959 transitions. [2024-12-02 11:13:41,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 5.232558139534884) internal successors, (225), 43 states have internal predecessors, (225), 0 states have call successors, (0), 0 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 11:13:41,917 INFO L276 IsEmpty]: Start isEmpty. Operand 15691 states and 20959 transitions. [2024-12-02 11:13:41,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-12-02 11:13:41,917 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:13:41,917 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:13:41,925 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 11:13:42,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:13:42,118 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:13:42,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:13:42,119 INFO L85 PathProgramCache]: Analyzing trace with hash 222504259, now seen corresponding path program 1 times [2024-12-02 11:13:42,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:13:42,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677336302] [2024-12-02 11:13:42,119 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:13:42,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:13:42,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:13:42,209 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 11:13:42,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:13:42,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677336302] [2024-12-02 11:13:42,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677336302] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:13:42,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1608774836] [2024-12-02 11:13:42,209 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:13:42,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:13:42,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:13:42,211 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:13:42,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 11:13:42,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:13:42,349 INFO L256 TraceCheckSpWp]: Trace formula consists of 439 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-12-02 11:13:42,351 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:13:42,442 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 11:13:42,442 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:13:42,691 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 11:13:42,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1608774836] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:13:42,692 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:13:42,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6, 4] total 10 [2024-12-02 11:13:42,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665388380] [2024-12-02 11:13:42,692 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:13:42,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 11:13:42,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:13:42,692 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 11:13:42,692 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2024-12-02 11:13:42,692 INFO L87 Difference]: Start difference. First operand 15691 states and 20959 transitions. Second operand has 10 states, 10 states have (on average 25.5) internal successors, (255), 10 states have internal predecessors, (255), 0 states have call successors, (0), 0 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 11:13:44,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:13:44,198 INFO L93 Difference]: Finished difference Result 46326 states and 60045 transitions. [2024-12-02 11:13:44,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 11:13:44,199 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 25.5) internal successors, (255), 10 states have internal predecessors, (255), 0 states have call successors, (0), 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 11:13:44,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:13:44,221 INFO L225 Difference]: With dead ends: 46326 [2024-12-02 11:13:44,221 INFO L226 Difference]: Without dead ends: 33058 [2024-12-02 11:13:44,228 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2024-12-02 11:13:44,229 INFO L435 NwaCegarLoop]: 1557 mSDtfsCounter, 3025 mSDsluCounter, 4814 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3025 SdHoareTripleChecker+Valid, 6371 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:13:44,229 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3025 Valid, 6371 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:13:44,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33058 states. [2024-12-02 11:13:45,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33058 to 31974. [2024-12-02 11:13:45,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31974 states, 31972 states have (on average 1.2737395220818215) internal successors, (40724), 31973 states have internal predecessors, (40724), 0 states have call successors, (0), 0 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 11:13:45,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31974 states to 31974 states and 40724 transitions. [2024-12-02 11:13:45,599 INFO L78 Accepts]: Start accepts. Automaton has 31974 states and 40724 transitions. Word has length 93 [2024-12-02 11:13:45,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:13:45,599 INFO L471 AbstractCegarLoop]: Abstraction has 31974 states and 40724 transitions. [2024-12-02 11:13:45,599 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 25.5) internal successors, (255), 10 states have internal predecessors, (255), 0 states have call successors, (0), 0 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 11:13:45,599 INFO L276 IsEmpty]: Start isEmpty. Operand 31974 states and 40724 transitions. [2024-12-02 11:13:45,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-12-02 11:13:45,599 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:13:45,600 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:13:45,605 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-02 11:13:45,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-12-02 11:13:45,800 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:13:45,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:13:45,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1762812403, now seen corresponding path program 1 times [2024-12-02 11:13:45,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:13:45,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694433999] [2024-12-02 11:13:45,801 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:13:45,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:13:45,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:13:46,485 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:13:46,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:13:46,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694433999] [2024-12-02 11:13:46,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694433999] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:13:46,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1274834534] [2024-12-02 11:13:46,486 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:13:46,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:13:46,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:13:46,488 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:13:46,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 11:13:46,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:13:46,609 INFO L256 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-12-02 11:13:46,611 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:13:48,149 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:13:48,149 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:13:50,161 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:13:50,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1274834534] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:13:50,161 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:13:50,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 16, 17] total 42 [2024-12-02 11:13:50,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287444987] [2024-12-02 11:13:50,162 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:13:50,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-12-02 11:13:50,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:13:50,163 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-12-02 11:13:50,163 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=234, Invalid=1488, Unknown=0, NotChecked=0, Total=1722 [2024-12-02 11:13:50,163 INFO L87 Difference]: Start difference. First operand 31974 states and 40724 transitions. Second operand has 42 states, 42 states have (on average 5.809523809523809) internal successors, (244), 42 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:13:55,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:13:55,754 INFO L93 Difference]: Finished difference Result 87007 states and 109221 transitions. [2024-12-02 11:13:55,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-12-02 11:13:55,754 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 5.809523809523809) internal successors, (244), 42 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-12-02 11:13:55,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:13:55,795 INFO L225 Difference]: With dead ends: 87007 [2024-12-02 11:13:55,795 INFO L226 Difference]: Without dead ends: 61465 [2024-12-02 11:13:55,805 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1201 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=1096, Invalid=4160, Unknown=0, NotChecked=0, Total=5256 [2024-12-02 11:13:55,806 INFO L435 NwaCegarLoop]: 1545 mSDtfsCounter, 14338 mSDsluCounter, 15623 mSDsCounter, 0 mSdLazyCounter, 1389 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14338 SdHoareTripleChecker+Valid, 17168 SdHoareTripleChecker+Invalid, 1430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 11:13:55,806 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14338 Valid, 17168 Invalid, 1430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1389 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 11:13:55,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61465 states. [2024-12-02 11:13:58,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61465 to 51526. [2024-12-02 11:13:58,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51526 states, 51524 states have (on average 1.2554925859793495) internal successors, (64688), 51525 states have internal predecessors, (64688), 0 states have call successors, (0), 0 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 11:13:58,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51526 states to 51526 states and 64688 transitions. [2024-12-02 11:13:58,833 INFO L78 Accepts]: Start accepts. Automaton has 51526 states and 64688 transitions. Word has length 93 [2024-12-02 11:13:58,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:13:58,833 INFO L471 AbstractCegarLoop]: Abstraction has 51526 states and 64688 transitions. [2024-12-02 11:13:58,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 5.809523809523809) internal successors, (244), 42 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:13:58,833 INFO L276 IsEmpty]: Start isEmpty. Operand 51526 states and 64688 transitions. [2024-12-02 11:13:58,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-12-02 11:13:58,836 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:13:58,836 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:13:58,846 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-12-02 11:13:59,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-12-02 11:13:59,037 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:13:59,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:13:59,037 INFO L85 PathProgramCache]: Analyzing trace with hash 339447757, now seen corresponding path program 1 times [2024-12-02 11:13:59,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:13:59,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275412907] [2024-12-02 11:13:59,037 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:13:59,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:13:59,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:13:59,167 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:13:59,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:13:59,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275412907] [2024-12-02 11:13:59,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275412907] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:13:59,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:13:59,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:13:59,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400467836] [2024-12-02 11:13:59,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:13:59,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:13:59,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:13:59,169 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:13:59,169 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:13:59,169 INFO L87 Difference]: Start difference. First operand 51526 states and 64688 transitions. Second operand has 4 states, 4 states have (on average 34.5) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 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 11:14:04,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:14:04,597 INFO L93 Difference]: Finished difference Result 55320 states and 71051 transitions. [2024-12-02 11:14:04,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:14:04,598 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 138 [2024-12-02 11:14:04,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:14:04,637 INFO L225 Difference]: With dead ends: 55320 [2024-12-02 11:14:04,637 INFO L226 Difference]: Without dead ends: 53028 [2024-12-02 11:14:04,645 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:14:04,645 INFO L435 NwaCegarLoop]: 779 mSDtfsCounter, 807 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 3095 mSolverCounterSat, 729 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 807 SdHoareTripleChecker+Valid, 898 SdHoareTripleChecker+Invalid, 3824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 729 IncrementalHoareTripleChecker+Valid, 3095 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-12-02 11:14:04,646 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [807 Valid, 898 Invalid, 3824 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [729 Valid, 3095 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-12-02 11:14:04,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53028 states. [2024-12-02 11:14:07,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53028 to 52277. [2024-12-02 11:14:07,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52277 states, 52275 states have (on average 1.2518603538976567) internal successors, (65441), 52276 states have internal predecessors, (65441), 0 states have call successors, (0), 0 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 11:14:07,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52277 states to 52277 states and 65441 transitions. [2024-12-02 11:14:07,681 INFO L78 Accepts]: Start accepts. Automaton has 52277 states and 65441 transitions. Word has length 138 [2024-12-02 11:14:07,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:14:07,681 INFO L471 AbstractCegarLoop]: Abstraction has 52277 states and 65441 transitions. [2024-12-02 11:14:07,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 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 11:14:07,681 INFO L276 IsEmpty]: Start isEmpty. Operand 52277 states and 65441 transitions. [2024-12-02 11:14:07,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-12-02 11:14:07,685 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:14:07,685 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:14:07,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-12-02 11:14:07,685 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:14:07,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:14:07,686 INFO L85 PathProgramCache]: Analyzing trace with hash 108690406, now seen corresponding path program 1 times [2024-12-02 11:14:07,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:14:07,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038823881] [2024-12-02 11:14:07,686 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:14:07,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:14:07,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:14:08,661 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 47 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:14:08,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:14:08,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038823881] [2024-12-02 11:14:08,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038823881] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:14:08,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [633932780] [2024-12-02 11:14:08,661 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:14:08,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:14:08,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:14:08,663 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:14:08,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-02 11:14:08,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:14:08,813 INFO L256 TraceCheckSpWp]: Trace formula consists of 621 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-12-02 11:14:08,815 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:14:09,702 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 36 proven. 89 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:14:09,702 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:14:11,482 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 31 proven. 94 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:14:11,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [633932780] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:14:11,482 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:14:11,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 11, 11] total 34 [2024-12-02 11:14:11,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841977894] [2024-12-02 11:14:11,483 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:14:11,483 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-12-02 11:14:11,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:14:11,483 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-12-02 11:14:11,484 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=1072, Unknown=0, NotChecked=0, Total=1190 [2024-12-02 11:14:11,484 INFO L87 Difference]: Start difference. First operand 52277 states and 65441 transitions. Second operand has 35 states, 35 states have (on average 11.428571428571429) internal successors, (400), 34 states have internal predecessors, (400), 0 states have call successors, (0), 0 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 11:14:25,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:14:25,946 INFO L93 Difference]: Finished difference Result 173097 states and 217835 transitions. [2024-12-02 11:14:25,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2024-12-02 11:14:25,947 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 11.428571428571429) internal successors, (400), 34 states have internal predecessors, (400), 0 states have call successors, (0), 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 144 [2024-12-02 11:14:25,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:14:26,081 INFO L225 Difference]: With dead ends: 173097 [2024-12-02 11:14:26,081 INFO L226 Difference]: Without dead ends: 128104 [2024-12-02 11:14:26,112 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 402 GetRequests, 269 SyntacticMatches, 0 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5075 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=3129, Invalid=14961, Unknown=0, NotChecked=0, Total=18090 [2024-12-02 11:14:26,112 INFO L435 NwaCegarLoop]: 1521 mSDtfsCounter, 25654 mSDsluCounter, 15757 mSDsCounter, 0 mSdLazyCounter, 2531 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25654 SdHoareTripleChecker+Valid, 17278 SdHoareTripleChecker+Invalid, 2600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 2531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-12-02 11:14:26,113 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [25654 Valid, 17278 Invalid, 2600 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 2531 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-12-02 11:14:26,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128104 states. [2024-12-02 11:14:30,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128104 to 88002. [2024-12-02 11:14:30,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88002 states, 88000 states have (on average 1.2335340909090908) internal successors, (108551), 88001 states have internal predecessors, (108551), 0 states have call successors, (0), 0 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 11:14:30,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88002 states to 88002 states and 108551 transitions. [2024-12-02 11:14:30,746 INFO L78 Accepts]: Start accepts. Automaton has 88002 states and 108551 transitions. Word has length 144 [2024-12-02 11:14:30,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:14:30,746 INFO L471 AbstractCegarLoop]: Abstraction has 88002 states and 108551 transitions. [2024-12-02 11:14:30,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 11.428571428571429) internal successors, (400), 34 states have internal predecessors, (400), 0 states have call successors, (0), 0 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 11:14:30,747 INFO L276 IsEmpty]: Start isEmpty. Operand 88002 states and 108551 transitions. [2024-12-02 11:14:30,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-12-02 11:14:30,752 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:14:30,752 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:14:30,762 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-12-02 11:14:30,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:14:30,952 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:14:30,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:14:30,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1546348145, now seen corresponding path program 1 times [2024-12-02 11:14:30,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:14:30,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722006802] [2024-12-02 11:14:30,953 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:14:30,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:14:30,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:14:31,578 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 51 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:14:31,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:14:31,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722006802] [2024-12-02 11:14:31,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722006802] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:14:31,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1624744940] [2024-12-02 11:14:31,578 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:14:31,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:14:31,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:14:31,580 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:14:31,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-12-02 11:14:31,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:14:31,731 INFO L256 TraceCheckSpWp]: Trace formula consists of 625 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-12-02 11:14:31,733 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:14:32,427 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 37 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:14:32,427 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:14:34,355 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 34 proven. 87 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:14:34,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1624744940] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:14:34,356 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:14:34,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 11] total 33 [2024-12-02 11:14:34,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443949779] [2024-12-02 11:14:34,356 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:14:34,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-12-02 11:14:34,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:14:34,357 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-12-02 11:14:34,357 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=1001, Unknown=0, NotChecked=0, Total=1122 [2024-12-02 11:14:34,357 INFO L87 Difference]: Start difference. First operand 88002 states and 108551 transitions. Second operand has 34 states, 34 states have (on average 11.676470588235293) internal successors, (397), 33 states have internal predecessors, (397), 0 states have call successors, (0), 0 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 11:14:41,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:14:41,681 INFO L93 Difference]: Finished difference Result 126316 states and 155662 transitions. [2024-12-02 11:14:41,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2024-12-02 11:14:41,681 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 11.676470588235293) internal successors, (397), 33 states have internal predecessors, (397), 0 states have call successors, (0), 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 145 [2024-12-02 11:14:41,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:14:41,725 INFO L225 Difference]: With dead ends: 126316 [2024-12-02 11:14:41,725 INFO L226 Difference]: Without dead ends: 60952 [2024-12-02 11:14:41,744 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 269 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1262 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=1289, Invalid=5191, Unknown=0, NotChecked=0, Total=6480 [2024-12-02 11:14:41,745 INFO L435 NwaCegarLoop]: 1484 mSDtfsCounter, 21010 mSDsluCounter, 15307 mSDsCounter, 0 mSdLazyCounter, 1525 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21010 SdHoareTripleChecker+Valid, 16791 SdHoareTripleChecker+Invalid, 1562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 11:14:41,745 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21010 Valid, 16791 Invalid, 1562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1525 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 11:14:41,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60952 states. [2024-12-02 11:14:44,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60952 to 52532. [2024-12-02 11:14:44,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52532 states, 52530 states have (on average 1.2160479725870932) internal successors, (63879), 52531 states have internal predecessors, (63879), 0 states have call successors, (0), 0 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 11:14:44,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52532 states to 52532 states and 63879 transitions. [2024-12-02 11:14:44,576 INFO L78 Accepts]: Start accepts. Automaton has 52532 states and 63879 transitions. Word has length 145 [2024-12-02 11:14:44,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:14:44,576 INFO L471 AbstractCegarLoop]: Abstraction has 52532 states and 63879 transitions. [2024-12-02 11:14:44,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 11.676470588235293) internal successors, (397), 33 states have internal predecessors, (397), 0 states have call successors, (0), 0 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 11:14:44,576 INFO L276 IsEmpty]: Start isEmpty. Operand 52532 states and 63879 transitions. [2024-12-02 11:14:44,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-12-02 11:14:44,580 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:14:44,580 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:14:44,586 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-12-02 11:14:44,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:14:44,780 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:14:44,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:14:44,781 INFO L85 PathProgramCache]: Analyzing trace with hash 767624872, now seen corresponding path program 1 times [2024-12-02 11:14:44,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:14:44,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449795878] [2024-12-02 11:14:44,781 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:14:44,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:14:44,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:14:45,453 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 16 proven. 106 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:14:45,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:14:45,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449795878] [2024-12-02 11:14:45,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449795878] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:14:45,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [334425655] [2024-12-02 11:14:45,453 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:14:45,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:14:45,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:14:45,455 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:14:45,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-12-02 11:14:45,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:14:45,607 INFO L256 TraceCheckSpWp]: Trace formula consists of 627 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-12-02 11:14:45,610 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:14:46,677 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 23 proven. 99 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:14:46,677 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:14:48,719 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 16 proven. 106 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:14:48,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [334425655] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:14:48,719 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:14:48,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 11, 11] total 30 [2024-12-02 11:14:48,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152088228] [2024-12-02 11:14:48,719 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:14:48,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-12-02 11:14:48,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:14:48,720 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-12-02 11:14:48,720 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=808, Unknown=0, NotChecked=0, Total=930 [2024-12-02 11:14:48,720 INFO L87 Difference]: Start difference. First operand 52532 states and 63879 transitions. Second operand has 31 states, 31 states have (on average 11.870967741935484) internal successors, (368), 30 states have internal predecessors, (368), 0 states have call successors, (0), 0 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 11:14:53,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:14:53,794 INFO L93 Difference]: Finished difference Result 90644 states and 109973 transitions. [2024-12-02 11:14:53,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-12-02 11:14:53,794 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 11.870967741935484) internal successors, (368), 30 states have internal predecessors, (368), 0 states have call successors, (0), 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 146 [2024-12-02 11:14:53,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:14:53,849 INFO L225 Difference]: With dead ends: 90644 [2024-12-02 11:14:53,849 INFO L226 Difference]: Without dead ends: 68306 [2024-12-02 11:14:53,866 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 277 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 625 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=729, Invalid=2577, Unknown=0, NotChecked=0, Total=3306 [2024-12-02 11:14:53,866 INFO L435 NwaCegarLoop]: 1540 mSDtfsCounter, 16393 mSDsluCounter, 9567 mSDsCounter, 0 mSdLazyCounter, 1262 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16393 SdHoareTripleChecker+Valid, 11107 SdHoareTripleChecker+Invalid, 1290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 11:14:53,867 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16393 Valid, 11107 Invalid, 1290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1262 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 11:14:53,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68306 states. [2024-12-02 11:14:56,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68306 to 52532. [2024-12-02 11:14:56,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52532 states, 52530 states have (on average 1.2094612602322483) internal successors, (63533), 52531 states have internal predecessors, (63533), 0 states have call successors, (0), 0 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 11:14:56,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52532 states to 52532 states and 63533 transitions. [2024-12-02 11:14:56,913 INFO L78 Accepts]: Start accepts. Automaton has 52532 states and 63533 transitions. Word has length 146 [2024-12-02 11:14:56,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:14:56,913 INFO L471 AbstractCegarLoop]: Abstraction has 52532 states and 63533 transitions. [2024-12-02 11:14:56,913 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 11.870967741935484) internal successors, (368), 30 states have internal predecessors, (368), 0 states have call successors, (0), 0 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 11:14:56,913 INFO L276 IsEmpty]: Start isEmpty. Operand 52532 states and 63533 transitions. [2024-12-02 11:14:56,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-12-02 11:14:56,918 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:14:56,918 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:14:56,925 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-12-02 11:14:57,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-12-02 11:14:57,118 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:14:57,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:14:57,119 INFO L85 PathProgramCache]: Analyzing trace with hash -988020049, now seen corresponding path program 1 times [2024-12-02 11:14:57,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:14:57,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773726167] [2024-12-02 11:14:57,119 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:14:57,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:14:57,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:14:59,654 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 16 proven. 107 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:14:59,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:14:59,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773726167] [2024-12-02 11:14:59,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773726167] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:14:59,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [884896301] [2024-12-02 11:14:59,655 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:14:59,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:14:59,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:14:59,656 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:14:59,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-12-02 11:14:59,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:14:59,833 INFO L256 TraceCheckSpWp]: Trace formula consists of 629 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-12-02 11:14:59,835 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:15:05,314 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 25 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:15:05,314 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:15:16,326 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 16 proven. 107 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:15:16,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [884896301] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:15:16,326 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:15:16,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 22, 23] total 76 [2024-12-02 11:15:16,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689773249] [2024-12-02 11:15:16,326 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:15:16,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 76 states [2024-12-02 11:15:16,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:15:16,327 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2024-12-02 11:15:16,327 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=340, Invalid=5360, Unknown=0, NotChecked=0, Total=5700 [2024-12-02 11:15:16,327 INFO L87 Difference]: Start difference. First operand 52532 states and 63533 transitions. Second operand has 76 states, 76 states have (on average 5.605263157894737) internal successors, (426), 76 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:17:58,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:17:58,808 INFO L93 Difference]: Finished difference Result 196740 states and 237147 transitions. [2024-12-02 11:17:58,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 256 states. [2024-12-02 11:17:58,808 INFO L78 Accepts]: Start accepts. Automaton has has 76 states, 76 states have (on average 5.605263157894737) internal successors, (426), 76 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 147 [2024-12-02 11:17:58,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:17:58,953 INFO L225 Difference]: With dead ends: 196740 [2024-12-02 11:17:58,954 INFO L226 Difference]: Without dead ends: 178874 [2024-12-02 11:17:58,977 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 582 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 328 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37276 ImplicationChecksByTransitivity, 141.3s TimeCoverageRelationStatistics Valid=14084, Invalid=94486, Unknown=0, NotChecked=0, Total=108570 [2024-12-02 11:17:58,978 INFO L435 NwaCegarLoop]: 1576 mSDtfsCounter, 46807 mSDsluCounter, 42902 mSDsCounter, 0 mSdLazyCounter, 10493 mSolverCounterSat, 664 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46807 SdHoareTripleChecker+Valid, 44478 SdHoareTripleChecker+Invalid, 11157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 664 IncrementalHoareTripleChecker+Valid, 10493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2024-12-02 11:17:58,978 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [46807 Valid, 44478 Invalid, 11157 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [664 Valid, 10493 Invalid, 0 Unknown, 0 Unchecked, 12.3s Time] [2024-12-02 11:17:59,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178874 states. [2024-12-02 11:18:07,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178874 to 101154. [2024-12-02 11:18:07,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101154 states, 101152 states have (on average 1.2060364599810187) internal successors, (121993), 101153 states have internal predecessors, (121993), 0 states have call successors, (0), 0 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 11:18:07,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101154 states to 101154 states and 121993 transitions. [2024-12-02 11:18:07,827 INFO L78 Accepts]: Start accepts. Automaton has 101154 states and 121993 transitions. Word has length 147 [2024-12-02 11:18:07,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:18:07,827 INFO L471 AbstractCegarLoop]: Abstraction has 101154 states and 121993 transitions. [2024-12-02 11:18:07,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 76 states, 76 states have (on average 5.605263157894737) internal successors, (426), 76 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:18:07,828 INFO L276 IsEmpty]: Start isEmpty. Operand 101154 states and 121993 transitions. [2024-12-02 11:18:07,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-12-02 11:18:07,834 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:18:07,834 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:18:07,847 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-12-02 11:18:08,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-12-02 11:18:08,035 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:18:08,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:18:08,035 INFO L85 PathProgramCache]: Analyzing trace with hash 1065430515, now seen corresponding path program 1 times [2024-12-02 11:18:08,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:18:08,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052386086] [2024-12-02 11:18:08,035 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:18:08,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:18:08,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:18:08,350 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 34 proven. 76 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 11:18:08,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:18:08,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052386086] [2024-12-02 11:18:08,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052386086] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:18:08,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1165308585] [2024-12-02 11:18:08,350 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:18:08,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:18:08,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:18:08,352 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:18:08,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-12-02 11:18:08,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:18:08,520 INFO L256 TraceCheckSpWp]: Trace formula consists of 626 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-12-02 11:18:08,522 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:18:09,474 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 34 proven. 88 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:18:09,474 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:18:11,227 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 39 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:18:11,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1165308585] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:18:11,227 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:18:11,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 12, 12] total 26 [2024-12-02 11:18:11,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787368334] [2024-12-02 11:18:11,228 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:18:11,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-12-02 11:18:11,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:18:11,229 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-12-02 11:18:11,229 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=591, Unknown=0, NotChecked=0, Total=702 [2024-12-02 11:18:11,229 INFO L87 Difference]: Start difference. First operand 101154 states and 121993 transitions. Second operand has 27 states, 27 states have (on average 13.11111111111111) internal successors, (354), 26 states have internal predecessors, (354), 0 states have call successors, (0), 0 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 11:18:24,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:18:24,921 INFO L93 Difference]: Finished difference Result 193331 states and 233345 transitions. [2024-12-02 11:18:24,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-12-02 11:18:24,922 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 13.11111111111111) internal successors, (354), 26 states have internal predecessors, (354), 0 states have call successors, (0), 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 147 [2024-12-02 11:18:24,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:18:25,049 INFO L225 Difference]: With dead ends: 193331 [2024-12-02 11:18:25,049 INFO L226 Difference]: Without dead ends: 155889 [2024-12-02 11:18:25,074 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 338 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 908 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=898, Invalid=3134, Unknown=0, NotChecked=0, Total=4032 [2024-12-02 11:18:25,074 INFO L435 NwaCegarLoop]: 1531 mSDtfsCounter, 16611 mSDsluCounter, 12550 mSDsCounter, 0 mSdLazyCounter, 1084 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16611 SdHoareTripleChecker+Valid, 14081 SdHoareTripleChecker+Invalid, 1127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1084 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 11:18:25,074 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16611 Valid, 14081 Invalid, 1127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1084 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 11:18:25,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155889 states. [2024-12-02 11:18:32,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155889 to 97298. [2024-12-02 11:18:32,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97298 states, 97296 states have (on average 1.199525160335471) internal successors, (116709), 97297 states have internal predecessors, (116709), 0 states have call successors, (0), 0 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 11:18:32,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97298 states to 97298 states and 116709 transitions. [2024-12-02 11:18:32,756 INFO L78 Accepts]: Start accepts. Automaton has 97298 states and 116709 transitions. Word has length 147 [2024-12-02 11:18:32,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:18:32,757 INFO L471 AbstractCegarLoop]: Abstraction has 97298 states and 116709 transitions. [2024-12-02 11:18:32,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 13.11111111111111) internal successors, (354), 26 states have internal predecessors, (354), 0 states have call successors, (0), 0 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 11:18:32,757 INFO L276 IsEmpty]: Start isEmpty. Operand 97298 states and 116709 transitions. [2024-12-02 11:18:32,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-12-02 11:18:32,764 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:18:32,764 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:18:32,771 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-12-02 11:18:32,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-12-02 11:18:32,964 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:18:32,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:18:32,965 INFO L85 PathProgramCache]: Analyzing trace with hash 1622210351, now seen corresponding path program 1 times [2024-12-02 11:18:32,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:18:32,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335104656] [2024-12-02 11:18:32,965 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:18:32,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:18:33,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:18:34,189 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 34 proven. 88 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:18:34,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:18:34,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335104656] [2024-12-02 11:18:34,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335104656] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:18:34,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [857544094] [2024-12-02 11:18:34,189 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:18:34,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:18:34,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:18:34,191 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:18:34,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-12-02 11:18:34,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:18:34,338 INFO L256 TraceCheckSpWp]: Trace formula consists of 628 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-12-02 11:18:34,340 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:18:35,525 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 46 proven. 76 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:18:35,525 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:18:38,500 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 43 proven. 79 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:18:38,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [857544094] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:18:38,500 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:18:38,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 13, 13] total 48 [2024-12-02 11:18:38,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940337119] [2024-12-02 11:18:38,500 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:18:38,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2024-12-02 11:18:38,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:18:38,501 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2024-12-02 11:18:38,501 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=2096, Unknown=0, NotChecked=0, Total=2256 [2024-12-02 11:18:38,502 INFO L87 Difference]: Start difference. First operand 97298 states and 116709 transitions. Second operand has 48 states, 48 states have (on average 8.3125) internal successors, (399), 48 states have internal predecessors, (399), 0 states have call successors, (0), 0 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 11:19:04,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:19:04,522 INFO L93 Difference]: Finished difference Result 229053 states and 277137 transitions. [2024-12-02 11:19:04,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2024-12-02 11:19:04,523 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 48 states have (on average 8.3125) internal successors, (399), 48 states have internal predecessors, (399), 0 states have call successors, (0), 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 147 [2024-12-02 11:19:04,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:19:04,666 INFO L225 Difference]: With dead ends: 229053 [2024-12-02 11:19:04,666 INFO L226 Difference]: Without dead ends: 148033 [2024-12-02 11:19:04,698 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 419 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 148 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6241 ImplicationChecksByTransitivity, 12.5s TimeCoverageRelationStatistics Valid=3238, Invalid=19112, Unknown=0, NotChecked=0, Total=22350 [2024-12-02 11:19:04,699 INFO L435 NwaCegarLoop]: 1617 mSDtfsCounter, 23831 mSDsluCounter, 24785 mSDsCounter, 0 mSdLazyCounter, 4400 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23831 SdHoareTripleChecker+Valid, 26402 SdHoareTripleChecker+Invalid, 4504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 4400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-12-02 11:19:04,699 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23831 Valid, 26402 Invalid, 4504 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [104 Valid, 4400 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-12-02 11:19:04,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148033 states. [2024-12-02 11:19:09,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148033 to 47038. [2024-12-02 11:19:09,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47038 states, 47036 states have (on average 1.2045879751679565) internal successors, (56659), 47037 states have internal predecessors, (56659), 0 states have call successors, (0), 0 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 11:19:09,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47038 states to 47038 states and 56659 transitions. [2024-12-02 11:19:09,633 INFO L78 Accepts]: Start accepts. Automaton has 47038 states and 56659 transitions. Word has length 147 [2024-12-02 11:19:09,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:19:09,633 INFO L471 AbstractCegarLoop]: Abstraction has 47038 states and 56659 transitions. [2024-12-02 11:19:09,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 8.3125) internal successors, (399), 48 states have internal predecessors, (399), 0 states have call successors, (0), 0 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 11:19:09,634 INFO L276 IsEmpty]: Start isEmpty. Operand 47038 states and 56659 transitions. [2024-12-02 11:19:09,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-12-02 11:19:09,637 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:19:09,637 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:19:09,643 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-12-02 11:19:09,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-12-02 11:19:09,837 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:19:09,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:19:09,837 INFO L85 PathProgramCache]: Analyzing trace with hash -45986640, now seen corresponding path program 1 times [2024-12-02 11:19:09,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:19:09,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720749404] [2024-12-02 11:19:09,838 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:19:09,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:19:09,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:19:11,206 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 43 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:19:11,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:19:11,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720749404] [2024-12-02 11:19:11,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720749404] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:19:11,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1504279870] [2024-12-02 11:19:11,207 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:19:11,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:19:11,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:19:11,208 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:19:11,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-12-02 11:19:11,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:19:11,379 INFO L256 TraceCheckSpWp]: Trace formula consists of 628 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-12-02 11:19:11,381 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:19:12,923 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 52 proven. 71 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:19:12,923 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:19:15,925 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 52 proven. 71 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:19:15,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1504279870] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:19:15,925 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:19:15,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 17, 17] total 56 [2024-12-02 11:19:15,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879838220] [2024-12-02 11:19:15,925 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:19:15,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2024-12-02 11:19:15,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:19:15,926 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2024-12-02 11:19:15,927 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=232, Invalid=2848, Unknown=0, NotChecked=0, Total=3080 [2024-12-02 11:19:15,927 INFO L87 Difference]: Start difference. First operand 47038 states and 56659 transitions. Second operand has 56 states, 56 states have (on average 7.0) internal successors, (392), 56 states have internal predecessors, (392), 0 states have call successors, (0), 0 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 11:19:54,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:19:54,458 INFO L93 Difference]: Finished difference Result 177516 states and 211397 transitions. [2024-12-02 11:19:54,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2024-12-02 11:19:54,458 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 56 states have (on average 7.0) internal successors, (392), 56 states have internal predecessors, (392), 0 states have call successors, (0), 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 148 [2024-12-02 11:19:54,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:19:54,584 INFO L225 Difference]: With dead ends: 177516 [2024-12-02 11:19:54,585 INFO L226 Difference]: Without dead ends: 152389 [2024-12-02 11:19:54,609 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 444 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 179 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9383 ImplicationChecksByTransitivity, 22.6s TimeCoverageRelationStatistics Valid=5160, Invalid=27420, Unknown=0, NotChecked=0, Total=32580 [2024-12-02 11:19:54,609 INFO L435 NwaCegarLoop]: 1545 mSDtfsCounter, 25751 mSDsluCounter, 38028 mSDsCounter, 0 mSdLazyCounter, 3833 mSolverCounterSat, 252 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25751 SdHoareTripleChecker+Valid, 39573 SdHoareTripleChecker+Invalid, 4085 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 252 IncrementalHoareTripleChecker+Valid, 3833 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:19:54,610 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [25751 Valid, 39573 Invalid, 4085 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [252 Valid, 3833 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-12-02 11:19:54,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152389 states. [2024-12-02 11:20:06,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152389 to 116201. [2024-12-02 11:20:06,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116201 states, 116199 states have (on average 1.19400339073486) internal successors, (138742), 116200 states have internal predecessors, (138742), 0 states have call successors, (0), 0 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 11:20:06,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116201 states to 116201 states and 138742 transitions. [2024-12-02 11:20:06,543 INFO L78 Accepts]: Start accepts. Automaton has 116201 states and 138742 transitions. Word has length 148 [2024-12-02 11:20:06,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:20:06,543 INFO L471 AbstractCegarLoop]: Abstraction has 116201 states and 138742 transitions. [2024-12-02 11:20:06,543 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 56 states have (on average 7.0) internal successors, (392), 56 states have internal predecessors, (392), 0 states have call successors, (0), 0 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 11:20:06,544 INFO L276 IsEmpty]: Start isEmpty. Operand 116201 states and 138742 transitions. [2024-12-02 11:20:06,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-12-02 11:20:06,549 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:20:06,549 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:20:06,561 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-12-02 11:20:06,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-12-02 11:20:06,750 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:20:06,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:20:06,750 INFO L85 PathProgramCache]: Analyzing trace with hash 1832819284, now seen corresponding path program 1 times [2024-12-02 11:20:06,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:20:06,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874498715] [2024-12-02 11:20:06,750 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:20:06,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:20:06,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:20:07,352 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 44 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:20:07,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:20:07,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874498715] [2024-12-02 11:20:07,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874498715] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:20:07,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [152327833] [2024-12-02 11:20:07,352 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:20:07,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:20:07,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:20:07,354 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:20:07,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-12-02 11:20:07,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:20:07,521 INFO L256 TraceCheckSpWp]: Trace formula consists of 628 conjuncts, 51 conjuncts are in the unsatisfiable core [2024-12-02 11:20:07,523 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:20:10,624 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 44 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:20:10,624 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:20:15,813 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 16 proven. 108 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:20:15,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [152327833] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:20:15,813 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:20:15,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 22, 26] total 65 [2024-12-02 11:20:15,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677933774] [2024-12-02 11:20:15,813 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:20:15,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 65 states [2024-12-02 11:20:15,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:20:15,814 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2024-12-02 11:20:15,814 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=465, Invalid=3695, Unknown=0, NotChecked=0, Total=4160 [2024-12-02 11:20:15,814 INFO L87 Difference]: Start difference. First operand 116201 states and 138742 transitions. Second operand has 65 states, 65 states have (on average 6.369230769230769) internal successors, (414), 65 states have internal predecessors, (414), 0 states have call successors, (0), 0 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 11:20:51,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:20:51,369 INFO L93 Difference]: Finished difference Result 195937 states and 233441 transitions. [2024-12-02 11:20:51,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2024-12-02 11:20:51,370 INFO L78 Accepts]: Start accepts. Automaton has has 65 states, 65 states have (on average 6.369230769230769) internal successors, (414), 65 states have internal predecessors, (414), 0 states have call successors, (0), 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 148 [2024-12-02 11:20:51,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:20:51,478 INFO L225 Difference]: With dead ends: 195937 [2024-12-02 11:20:51,478 INFO L226 Difference]: Without dead ends: 130035 [2024-12-02 11:20:51,505 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 406 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7388 ImplicationChecksByTransitivity, 21.6s TimeCoverageRelationStatistics Valid=4339, Invalid=20153, Unknown=0, NotChecked=0, Total=24492 [2024-12-02 11:20:51,506 INFO L435 NwaCegarLoop]: 1523 mSDtfsCounter, 23736 mSDsluCounter, 30597 mSDsCounter, 0 mSdLazyCounter, 2987 mSolverCounterSat, 168 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23736 SdHoareTripleChecker+Valid, 32120 SdHoareTripleChecker+Invalid, 3155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 2987 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-12-02 11:20:51,506 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23736 Valid, 32120 Invalid, 3155 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [168 Valid, 2987 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-12-02 11:20:51,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130035 states. [2024-12-02 11:21:04,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130035 to 124834. [2024-12-02 11:21:04,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124834 states, 124832 states have (on average 1.1917617277621122) internal successors, (148770), 124833 states have internal predecessors, (148770), 0 states have call successors, (0), 0 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 11:21:04,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124834 states to 124834 states and 148770 transitions. [2024-12-02 11:21:04,844 INFO L78 Accepts]: Start accepts. Automaton has 124834 states and 148770 transitions. Word has length 148 [2024-12-02 11:21:04,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:21:04,844 INFO L471 AbstractCegarLoop]: Abstraction has 124834 states and 148770 transitions. [2024-12-02 11:21:04,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 65 states, 65 states have (on average 6.369230769230769) internal successors, (414), 65 states have internal predecessors, (414), 0 states have call successors, (0), 0 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 11:21:04,844 INFO L276 IsEmpty]: Start isEmpty. Operand 124834 states and 148770 transitions. [2024-12-02 11:21:04,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-12-02 11:21:04,849 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:21:04,849 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:21:04,857 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-12-02 11:21:05,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-12-02 11:21:05,050 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:21:05,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:21:05,051 INFO L85 PathProgramCache]: Analyzing trace with hash 2062621616, now seen corresponding path program 1 times [2024-12-02 11:21:05,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:21:05,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890680633] [2024-12-02 11:21:05,051 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:21:05,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:21:05,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:21:08,194 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 34 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:21:08,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:21:08,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890680633] [2024-12-02 11:21:08,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890680633] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:21:08,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [764456649] [2024-12-02 11:21:08,195 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:21:08,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:21:08,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:21:08,196 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:21:08,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-12-02 11:21:08,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:21:08,368 INFO L256 TraceCheckSpWp]: Trace formula consists of 628 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-12-02 11:21:08,370 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:21:13,720 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 16 proven. 108 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:21:13,720 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:21:20,855 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 16 proven. 108 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:21:20,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [764456649] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:21:20,855 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:21:20,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 25, 24] total 82 [2024-12-02 11:21:20,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757359892] [2024-12-02 11:21:20,855 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:21:20,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 82 states [2024-12-02 11:21:20,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:21:20,856 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2024-12-02 11:21:20,857 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=405, Invalid=6237, Unknown=0, NotChecked=0, Total=6642 [2024-12-02 11:21:20,857 INFO L87 Difference]: Start difference. First operand 124834 states and 148770 transitions. Second operand has 82 states, 82 states have (on average 5.2317073170731705) internal successors, (429), 82 states have internal predecessors, (429), 0 states have call successors, (0), 0 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 11:23:37,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:23:37,502 INFO L93 Difference]: Finished difference Result 269678 states and 319404 transitions. [2024-12-02 11:23:37,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 230 states. [2024-12-02 11:23:37,503 INFO L78 Accepts]: Start accepts. Automaton has has 82 states, 82 states have (on average 5.2317073170731705) internal successors, (429), 82 states have internal predecessors, (429), 0 states have call successors, (0), 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 148 [2024-12-02 11:23:37,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:23:37,708 INFO L225 Difference]: With dead ends: 269678 [2024-12-02 11:23:37,708 INFO L226 Difference]: Without dead ends: 226250 [2024-12-02 11:23:37,745 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 559 GetRequests, 250 SyntacticMatches, 1 SemanticMatches, 308 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30569 ImplicationChecksByTransitivity, 102.1s TimeCoverageRelationStatistics Valid=12872, Invalid=82918, Unknown=0, NotChecked=0, Total=95790 [2024-12-02 11:23:37,746 INFO L435 NwaCegarLoop]: 1633 mSDtfsCounter, 32663 mSDsluCounter, 57515 mSDsCounter, 0 mSdLazyCounter, 14662 mSolverCounterSat, 302 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32663 SdHoareTripleChecker+Valid, 59148 SdHoareTripleChecker+Invalid, 14964 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 302 IncrementalHoareTripleChecker+Valid, 14662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.6s IncrementalHoareTripleChecker+Time [2024-12-02 11:23:37,746 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32663 Valid, 59148 Invalid, 14964 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [302 Valid, 14662 Invalid, 0 Unknown, 0 Unchecked, 13.6s Time] [2024-12-02 11:23:37,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226250 states. [2024-12-02 11:23:58,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226250 to 174224. [2024-12-02 11:23:58,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174224 states, 174222 states have (on average 1.1856424561766024) internal successors, (206565), 174223 states have internal predecessors, (206565), 0 states have call successors, (0), 0 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 11:23:58,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174224 states to 174224 states and 206565 transitions. [2024-12-02 11:23:58,896 INFO L78 Accepts]: Start accepts. Automaton has 174224 states and 206565 transitions. Word has length 148 [2024-12-02 11:23:58,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:23:58,896 INFO L471 AbstractCegarLoop]: Abstraction has 174224 states and 206565 transitions. [2024-12-02 11:23:58,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 82 states, 82 states have (on average 5.2317073170731705) internal successors, (429), 82 states have internal predecessors, (429), 0 states have call successors, (0), 0 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 11:23:58,896 INFO L276 IsEmpty]: Start isEmpty. Operand 174224 states and 206565 transitions. [2024-12-02 11:23:58,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-12-02 11:23:58,902 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:23:58,902 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:23:58,910 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-12-02 11:23:59,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-12-02 11:23:59,102 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:23:59,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:23:59,103 INFO L85 PathProgramCache]: Analyzing trace with hash -933640052, now seen corresponding path program 1 times [2024-12-02 11:23:59,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:23:59,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663077248] [2024-12-02 11:23:59,103 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:23:59,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:23:59,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:24:01,881 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 52 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:24:01,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:24:01,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663077248] [2024-12-02 11:24:01,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663077248] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:24:01,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1588246252] [2024-12-02 11:24:01,882 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:24:01,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:24:01,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:24:01,883 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:24:01,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6aae026-aa24-45dd-bf15-f283c9ceacbb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-12-02 11:24:02,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:24:02,066 INFO L256 TraceCheckSpWp]: Trace formula consists of 630 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-12-02 11:24:02,068 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:24:05,719 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 52 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:24:05,719 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:24:10,684 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 52 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:24:10,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1588246252] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:24:10,684 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:24:10,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 21, 19] total 69 [2024-12-02 11:24:10,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477539201] [2024-12-02 11:24:10,684 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:24:10,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 69 states [2024-12-02 11:24:10,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:24:10,685 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2024-12-02 11:24:10,686 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=284, Invalid=4408, Unknown=0, NotChecked=0, Total=4692 [2024-12-02 11:24:10,686 INFO L87 Difference]: Start difference. First operand 174224 states and 206565 transitions. Second operand has 69 states, 69 states have (on average 5.608695652173913) internal successors, (387), 69 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)