./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.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_e078e23e-824e-4693-8905-56fd7c1e822e/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e078e23e-824e-4693-8905-56fd7c1e822e/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_e078e23e-824e-4693-8905-56fd7c1e822e/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e078e23e-824e-4693-8905-56fd7c1e822e/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e078e23e-824e-4693-8905-56fd7c1e822e/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_e078e23e-824e-4693-8905-56fd7c1e822e/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 ab4ce27c037a23a1acb050e4e5e47861985f2a45717e88488eff45dc32b3cf64 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 14:55:50,832 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 14:55:50,890 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e078e23e-824e-4693-8905-56fd7c1e822e/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 14:55:50,895 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 14:55:50,896 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 14:55:50,917 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 14:55:50,918 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 14:55:50,918 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 14:55:50,918 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 14:55:50,918 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 14:55:50,918 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 14:55:50,919 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 14:55:50,919 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 14:55:50,919 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 14:55:50,919 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 14:55:50,919 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 14:55:50,919 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 14:55:50,919 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 14:55:50,919 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 14:55:50,920 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 14:55:50,920 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 14:55:50,920 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 14:55:50,920 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 14:55:50,920 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 14:55:50,920 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 14:55:50,920 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 14:55:50,920 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 14:55:50,920 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 14:55:50,920 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 14:55:50,920 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 14:55:50,921 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 14:55:50,921 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 14:55:50,921 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:55:50,921 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 14:55:50,921 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 14:55:50,921 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 14:55:50,921 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 14:55:50,921 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:55:50,921 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 14:55:50,921 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 14:55:50,921 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 14:55:50,921 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 14:55:50,921 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 14:55:50,922 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 14:55:50,922 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 14:55:50,922 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 14:55:50,922 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 14:55:50,922 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 14:55:50,922 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_e078e23e-824e-4693-8905-56fd7c1e822e/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 -> ab4ce27c037a23a1acb050e4e5e47861985f2a45717e88488eff45dc32b3cf64 [2024-12-02 14:55:51,156 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 14:55:51,165 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 14:55:51,167 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 14:55:51,168 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 14:55:51,168 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 14:55:51,170 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e078e23e-824e-4693-8905-56fd7c1e822e/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c [2024-12-02 14:55:53,832 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e078e23e-824e-4693-8905-56fd7c1e822e/bin/uautomizer-verify-84ZbGMXZE1/data/453f03bbb/4848932a8a0e4695b3b5280fefee47e8/FLAGfe75e6804 [2024-12-02 14:55:54,061 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 14:55:54,061 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e078e23e-824e-4693-8905-56fd7c1e822e/sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c [2024-12-02 14:55:54,077 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e078e23e-824e-4693-8905-56fd7c1e822e/bin/uautomizer-verify-84ZbGMXZE1/data/453f03bbb/4848932a8a0e4695b3b5280fefee47e8/FLAGfe75e6804 [2024-12-02 14:55:54,090 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e078e23e-824e-4693-8905-56fd7c1e822e/bin/uautomizer-verify-84ZbGMXZE1/data/453f03bbb/4848932a8a0e4695b3b5280fefee47e8 [2024-12-02 14:55:54,092 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 14:55:54,093 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 14:55:54,094 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 14:55:54,094 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 14:55:54,097 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 14:55:54,098 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:55:54" (1/1) ... [2024-12-02 14:55:54,098 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44eac242 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:55:54, skipping insertion in model container [2024-12-02 14:55:54,099 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:55:54" (1/1) ... [2024-12-02 14:55:54,118 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 14:55:54,289 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_e078e23e-824e-4693-8905-56fd7c1e822e/sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c[12667,12680] [2024-12-02 14:55:54,291 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 14:55:54,299 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 14:55:54,341 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_e078e23e-824e-4693-8905-56fd7c1e822e/sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c[12667,12680] [2024-12-02 14:55:54,341 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 14:55:54,353 INFO L204 MainTranslator]: Completed translation [2024-12-02 14:55:54,353 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:55:54 WrapperNode [2024-12-02 14:55:54,353 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 14:55:54,354 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 14:55:54,354 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 14:55:54,354 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 14:55:54,361 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:55:54" (1/1) ... [2024-12-02 14:55:54,370 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:55:54" (1/1) ... [2024-12-02 14:55:54,397 INFO L138 Inliner]: procedures = 25, calls = 16, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 380 [2024-12-02 14:55:54,397 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 14:55:54,397 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 14:55:54,397 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 14:55:54,397 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 14:55:54,406 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:55:54" (1/1) ... [2024-12-02 14:55:54,407 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:55:54" (1/1) ... [2024-12-02 14:55:54,409 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:55:54" (1/1) ... [2024-12-02 14:55:54,422 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 14:55:54,422 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:55:54" (1/1) ... [2024-12-02 14:55:54,423 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:55:54" (1/1) ... [2024-12-02 14:55:54,430 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:55:54" (1/1) ... [2024-12-02 14:55:54,431 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:55:54" (1/1) ... [2024-12-02 14:55:54,436 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:55:54" (1/1) ... [2024-12-02 14:55:54,438 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:55:54" (1/1) ... [2024-12-02 14:55:54,440 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:55:54" (1/1) ... [2024-12-02 14:55:54,442 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 14:55:54,443 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 14:55:54,443 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 14:55:54,443 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 14:55:54,444 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:55:54" (1/1) ... [2024-12-02 14:55:54,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:55:54,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e078e23e-824e-4693-8905-56fd7c1e822e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:55:54,470 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e078e23e-824e-4693-8905-56fd7c1e822e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 14:55:54,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e078e23e-824e-4693-8905-56fd7c1e822e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 14:55:54,492 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 14:55:54,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 14:55:54,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 14:55:54,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 14:55:54,567 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 14:55:54,568 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 14:55:54,981 INFO L? ?]: Removed 45 outVars from TransFormulas that were not future-live. [2024-12-02 14:55:54,981 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 14:55:54,993 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 14:55:54,993 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 14:55:54,993 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:55:54 BoogieIcfgContainer [2024-12-02 14:55:54,993 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 14:55:54,996 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 14:55:54,996 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 14:55:55,000 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 14:55:55,000 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:55:54" (1/3) ... [2024-12-02 14:55:55,000 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30830bb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:55:55, skipping insertion in model container [2024-12-02 14:55:55,000 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:55:54" (2/3) ... [2024-12-02 14:55:55,001 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30830bb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:55:55, skipping insertion in model container [2024-12-02 14:55:55,001 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:55:54" (3/3) ... [2024-12-02 14:55:55,002 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c [2024-12-02 14:55:55,016 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 14:55:55,018 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c that has 1 procedures, 103 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 14:55:55,076 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 14:55:55,085 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;@856de40, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 14:55:55,086 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 14:55:55,089 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 101 states have (on average 1.7425742574257426) internal successors, (176), 102 states have internal predecessors, (176), 0 states have call successors, (0), 0 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 14:55:55,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-12-02 14:55:55,096 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:55:55,096 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] [2024-12-02 14:55:55,097 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:55:55,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:55:55,101 INFO L85 PathProgramCache]: Analyzing trace with hash -587905737, now seen corresponding path program 1 times [2024-12-02 14:55:55,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:55:55,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846706002] [2024-12-02 14:55:55,109 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:55:55,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:55:55,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:55:55,318 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 14:55:55,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:55:55,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846706002] [2024-12-02 14:55:55,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846706002] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:55:55,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:55:55,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 14:55:55,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491086227] [2024-12-02 14:55:55,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:55:55,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 14:55:55,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:55:55,336 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 14:55:55,336 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 14:55:55,338 INFO L87 Difference]: Start difference. First operand has 103 states, 101 states have (on average 1.7425742574257426) internal successors, (176), 102 states have internal predecessors, (176), 0 states have call successors, (0), 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 16.5) internal successors, (33), 2 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:55:55,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:55:55,356 INFO L93 Difference]: Finished difference Result 165 states and 279 transitions. [2024-12-02 14:55:55,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 14:55:55,357 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2024-12-02 14:55:55,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:55:55,363 INFO L225 Difference]: With dead ends: 165 [2024-12-02 14:55:55,363 INFO L226 Difference]: Without dead ends: 99 [2024-12-02 14:55:55,365 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 14:55:55,367 INFO L435 NwaCegarLoop]: 169 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, 169 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 14:55:55,368 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:55:55,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-12-02 14:55:55,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2024-12-02 14:55:55,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 98 states have (on average 1.7244897959183674) internal successors, (169), 98 states have internal predecessors, (169), 0 states have call successors, (0), 0 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 14:55:55,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 169 transitions. [2024-12-02 14:55:55,396 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 169 transitions. Word has length 33 [2024-12-02 14:55:55,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:55:55,396 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 169 transitions. [2024-12-02 14:55:55,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:55:55,397 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 169 transitions. [2024-12-02 14:55:55,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-12-02 14:55:55,398 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:55:55,398 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] [2024-12-02 14:55:55,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 14:55:55,398 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:55:55,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:55:55,399 INFO L85 PathProgramCache]: Analyzing trace with hash -1097378827, now seen corresponding path program 1 times [2024-12-02 14:55:55,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:55:55,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559501769] [2024-12-02 14:55:55,399 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:55:55,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:55:55,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:55:55,621 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 14:55:55,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:55:55,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559501769] [2024-12-02 14:55:55,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559501769] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:55:55,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:55:55,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 14:55:55,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112753993] [2024-12-02 14:55:55,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:55:55,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 14:55:55,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:55:55,624 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 14:55:55,624 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:55:55,624 INFO L87 Difference]: Start difference. First operand 99 states and 169 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:55:55,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:55:55,712 INFO L93 Difference]: Finished difference Result 164 states and 272 transitions. [2024-12-02 14:55:55,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 14:55:55,713 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2024-12-02 14:55:55,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:55:55,714 INFO L225 Difference]: With dead ends: 164 [2024-12-02 14:55:55,714 INFO L226 Difference]: Without dead ends: 99 [2024-12-02 14:55:55,714 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 14:55:55,715 INFO L435 NwaCegarLoop]: 167 mSDtfsCounter, 0 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 631 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 14:55:55,716 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 631 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 14:55:55,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-12-02 14:55:55,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2024-12-02 14:55:55,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 98 states have (on average 1.3979591836734695) internal successors, (137), 98 states have internal predecessors, (137), 0 states have call successors, (0), 0 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 14:55:55,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 137 transitions. [2024-12-02 14:55:55,722 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 137 transitions. Word has length 33 [2024-12-02 14:55:55,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:55:55,723 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 137 transitions. [2024-12-02 14:55:55,723 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:55:55,723 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 137 transitions. [2024-12-02 14:55:55,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-12-02 14:55:55,724 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:55:55,724 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:55:55,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 14:55:55,725 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:55:55,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:55:55,725 INFO L85 PathProgramCache]: Analyzing trace with hash 1293258186, now seen corresponding path program 1 times [2024-12-02 14:55:55,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:55:55,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696539792] [2024-12-02 14:55:55,725 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:55:55,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:55:55,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:55:55,854 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 14:55:55,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:55:55,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696539792] [2024-12-02 14:55:55,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696539792] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:55:55,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:55:55,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 14:55:55,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949326452] [2024-12-02 14:55:55,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:55:55,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:55:55,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:55:55,856 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:55:55,856 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 14:55:55,856 INFO L87 Difference]: Start difference. First operand 99 states and 137 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:55:55,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:55:55,896 INFO L93 Difference]: Finished difference Result 213 states and 321 transitions. [2024-12-02 14:55:55,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:55:55,897 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2024-12-02 14:55:55,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:55:55,898 INFO L225 Difference]: With dead ends: 213 [2024-12-02 14:55:55,898 INFO L226 Difference]: Without dead ends: 152 [2024-12-02 14:55:55,898 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 14:55:55,899 INFO L435 NwaCegarLoop]: 183 mSDtfsCounter, 79 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:55:55,899 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 287 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:55:55,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2024-12-02 14:55:55,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 150. [2024-12-02 14:55:55,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 149 states have (on average 1.476510067114094) internal successors, (220), 149 states have internal predecessors, (220), 0 states have call successors, (0), 0 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 14:55:55,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 220 transitions. [2024-12-02 14:55:55,908 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 220 transitions. Word has length 64 [2024-12-02 14:55:55,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:55:55,908 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 220 transitions. [2024-12-02 14:55:55,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:55:55,909 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 220 transitions. [2024-12-02 14:55:55,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-12-02 14:55:55,910 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:55:55,910 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:55:55,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 14:55:55,910 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:55:55,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:55:55,911 INFO L85 PathProgramCache]: Analyzing trace with hash -1823278453, now seen corresponding path program 1 times [2024-12-02 14:55:55,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:55:55,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656610225] [2024-12-02 14:55:55,911 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:55:55,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:55:55,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:55:56,117 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 14:55:56,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:55:56,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656610225] [2024-12-02 14:55:56,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656610225] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:55:56,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:55:56,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 14:55:56,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046060452] [2024-12-02 14:55:56,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:55:56,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 14:55:56,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:55:56,119 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 14:55:56,119 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 14:55:56,119 INFO L87 Difference]: Start difference. First operand 150 states and 220 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:55:56,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:55:56,281 INFO L93 Difference]: Finished difference Result 822 states and 1312 transitions. [2024-12-02 14:55:56,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 14:55:56,281 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2024-12-02 14:55:56,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:55:56,286 INFO L225 Difference]: With dead ends: 822 [2024-12-02 14:55:56,286 INFO L226 Difference]: Without dead ends: 710 [2024-12-02 14:55:56,287 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2024-12-02 14:55:56,288 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 1314 mSDsluCounter, 723 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1314 SdHoareTripleChecker+Valid, 856 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 14:55:56,288 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1314 Valid, 856 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 14:55:56,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2024-12-02 14:55:56,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 260. [2024-12-02 14:55:56,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 259 states have (on average 1.5328185328185329) internal successors, (397), 259 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 14:55:56,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 397 transitions. [2024-12-02 14:55:56,311 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 397 transitions. Word has length 64 [2024-12-02 14:55:56,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:55:56,311 INFO L471 AbstractCegarLoop]: Abstraction has 260 states and 397 transitions. [2024-12-02 14:55:56,311 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:55:56,311 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 397 transitions. [2024-12-02 14:55:56,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-12-02 14:55:56,313 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:55:56,313 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, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:55:56,313 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 14:55:56,314 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:55:56,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:55:56,314 INFO L85 PathProgramCache]: Analyzing trace with hash -1070380477, now seen corresponding path program 1 times [2024-12-02 14:55:56,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:55:56,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952938522] [2024-12-02 14:55:56,314 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:55:56,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:55:56,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:55:56,616 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 14:55:56,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:55:56,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952938522] [2024-12-02 14:55:56,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952938522] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:55:56,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:55:56,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 14:55:56,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388944508] [2024-12-02 14:55:56,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:55:56,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 14:55:56,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:55:56,618 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 14:55:56,618 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 14:55:56,618 INFO L87 Difference]: Start difference. First operand 260 states and 397 transitions. Second operand has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 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 14:55:56,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:55:56,666 INFO L93 Difference]: Finished difference Result 274 states and 414 transitions. [2024-12-02 14:55:56,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 14:55:56,667 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2024-12-02 14:55:56,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:55:56,668 INFO L225 Difference]: With dead ends: 274 [2024-12-02 14:55:56,668 INFO L226 Difference]: Without dead ends: 272 [2024-12-02 14:55:56,668 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 14:55:56,669 INFO L435 NwaCegarLoop]: 131 mSDtfsCounter, 0 mSDsluCounter, 774 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 905 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:55:56,669 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 905 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:55:56,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2024-12-02 14:55:56,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 272. [2024-12-02 14:55:56,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 271 states have (on average 1.5092250922509225) internal successors, (409), 271 states have internal predecessors, (409), 0 states have call successors, (0), 0 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 14:55:56,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 409 transitions. [2024-12-02 14:55:56,680 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 409 transitions. Word has length 65 [2024-12-02 14:55:56,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:55:56,681 INFO L471 AbstractCegarLoop]: Abstraction has 272 states and 409 transitions. [2024-12-02 14:55:56,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 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 14:55:56,681 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 409 transitions. [2024-12-02 14:55:56,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-12-02 14:55:56,682 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:55:56,682 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] [2024-12-02 14:55:56,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 14:55:56,683 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:55:56,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:55:56,683 INFO L85 PathProgramCache]: Analyzing trace with hash 1230522211, now seen corresponding path program 1 times [2024-12-02 14:55:56,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:55:56,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061616826] [2024-12-02 14:55:56,683 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:55:56,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:55:56,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:55:56,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:55:56,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:55:56,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061616826] [2024-12-02 14:55:56,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061616826] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:55:56,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:55:56,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 14:55:56,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449622065] [2024-12-02 14:55:56,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:55:56,763 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:55:56,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:55:56,764 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:55:56,764 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 14:55:56,764 INFO L87 Difference]: Start difference. First operand 272 states and 409 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 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 14:55:56,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:55:56,791 INFO L93 Difference]: Finished difference Result 710 states and 1101 transitions. [2024-12-02 14:55:56,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:55:56,792 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2024-12-02 14:55:56,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:55:56,794 INFO L225 Difference]: With dead ends: 710 [2024-12-02 14:55:56,794 INFO L226 Difference]: Without dead ends: 476 [2024-12-02 14:55:56,795 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 14:55:56,795 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 63 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 228 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 14:55:56,795 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 228 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:55:56,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2024-12-02 14:55:56,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 470. [2024-12-02 14:55:56,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 469 states have (on average 1.5287846481876333) internal successors, (717), 469 states have internal predecessors, (717), 0 states have call successors, (0), 0 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 14:55:56,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 717 transitions. [2024-12-02 14:55:56,810 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 717 transitions. Word has length 66 [2024-12-02 14:55:56,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:55:56,811 INFO L471 AbstractCegarLoop]: Abstraction has 470 states and 717 transitions. [2024-12-02 14:55:56,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 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 14:55:56,811 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 717 transitions. [2024-12-02 14:55:56,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-12-02 14:55:56,811 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:55:56,811 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 14:55:56,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 14:55:56,812 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:55:56,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:55:56,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1542627652, now seen corresponding path program 1 times [2024-12-02 14:55:56,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:55:56,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283574891] [2024-12-02 14:55:56,812 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:55:56,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:55:56,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:55:56,903 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 14:55:56,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:55:56,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283574891] [2024-12-02 14:55:56,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283574891] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:55:56,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:55:56,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 14:55:56,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33764855] [2024-12-02 14:55:56,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:55:56,904 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:55:56,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:55:56,904 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:55:56,904 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 14:55:56,904 INFO L87 Difference]: Start difference. First operand 470 states and 717 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) 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 14:55:56,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:55:56,943 INFO L93 Difference]: Finished difference Result 1270 states and 1963 transitions. [2024-12-02 14:55:56,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:55:56,943 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) 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 14:55:56,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:55:56,947 INFO L225 Difference]: With dead ends: 1270 [2024-12-02 14:55:56,948 INFO L226 Difference]: Without dead ends: 838 [2024-12-02 14:55:56,948 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 14:55:56,949 INFO L435 NwaCegarLoop]: 160 mSDtfsCounter, 71 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:55:56,949 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 272 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:55:56,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2024-12-02 14:55:56,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 836. [2024-12-02 14:55:56,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 836 states, 835 states have (on average 1.526946107784431) internal successors, (1275), 835 states have internal predecessors, (1275), 0 states have call successors, (0), 0 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 14:55:56,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 836 states to 836 states and 1275 transitions. [2024-12-02 14:55:56,989 INFO L78 Accepts]: Start accepts. Automaton has 836 states and 1275 transitions. Word has length 67 [2024-12-02 14:55:56,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:55:56,989 INFO L471 AbstractCegarLoop]: Abstraction has 836 states and 1275 transitions. [2024-12-02 14:55:56,990 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) 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 14:55:56,990 INFO L276 IsEmpty]: Start isEmpty. Operand 836 states and 1275 transitions. [2024-12-02 14:55:56,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-12-02 14:55:56,991 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:55:56,991 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 14:55:56,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 14:55:56,991 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:55:56,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:55:56,991 INFO L85 PathProgramCache]: Analyzing trace with hash 951650716, now seen corresponding path program 1 times [2024-12-02 14:55:56,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:55:56,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514265975] [2024-12-02 14:55:56,992 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:55:56,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:55:57,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:55:57,086 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 14:55:57,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:55:57,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514265975] [2024-12-02 14:55:57,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514265975] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:55:57,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:55:57,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 14:55:57,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081620701] [2024-12-02 14:55:57,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:55:57,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:55:57,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:55:57,088 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:55:57,088 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 14:55:57,088 INFO L87 Difference]: Start difference. First operand 836 states and 1275 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) 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 14:55:57,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:55:57,144 INFO L93 Difference]: Finished difference Result 2304 states and 3525 transitions. [2024-12-02 14:55:57,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:55:57,144 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) 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 14:55:57,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:55:57,151 INFO L225 Difference]: With dead ends: 2304 [2024-12-02 14:55:57,151 INFO L226 Difference]: Without dead ends: 1506 [2024-12-02 14:55:57,152 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 14:55:57,152 INFO L435 NwaCegarLoop]: 177 mSDtfsCounter, 75 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:55:57,153 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 285 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:55:57,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1506 states. [2024-12-02 14:55:57,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1506 to 1504. [2024-12-02 14:55:57,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1504 states, 1503 states have (on average 1.5109780439121756) internal successors, (2271), 1503 states have internal predecessors, (2271), 0 states have call successors, (0), 0 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 14:55:57,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1504 states to 1504 states and 2271 transitions. [2024-12-02 14:55:57,223 INFO L78 Accepts]: Start accepts. Automaton has 1504 states and 2271 transitions. Word has length 67 [2024-12-02 14:55:57,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:55:57,224 INFO L471 AbstractCegarLoop]: Abstraction has 1504 states and 2271 transitions. [2024-12-02 14:55:57,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) 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 14:55:57,224 INFO L276 IsEmpty]: Start isEmpty. Operand 1504 states and 2271 transitions. [2024-12-02 14:55:57,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-12-02 14:55:57,225 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:55:57,225 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 14:55:57,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 14:55:57,225 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:55:57,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:55:57,226 INFO L85 PathProgramCache]: Analyzing trace with hash -820572324, now seen corresponding path program 1 times [2024-12-02 14:55:57,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:55:57,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729404782] [2024-12-02 14:55:57,226 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:55:57,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:55:57,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:55:57,311 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 14:55:57,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:55:57,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729404782] [2024-12-02 14:55:57,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729404782] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:55:57,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:55:57,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 14:55:57,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464377530] [2024-12-02 14:55:57,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:55:57,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:55:57,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:55:57,313 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:55:57,313 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 14:55:57,314 INFO L87 Difference]: Start difference. First operand 1504 states and 2271 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) 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 14:55:57,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:55:57,402 INFO L93 Difference]: Finished difference Result 4180 states and 6289 transitions. [2024-12-02 14:55:57,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:55:57,403 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) 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 14:55:57,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:55:57,413 INFO L225 Difference]: With dead ends: 4180 [2024-12-02 14:55:57,414 INFO L226 Difference]: Without dead ends: 2714 [2024-12-02 14:55:57,416 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 14:55:57,416 INFO L435 NwaCegarLoop]: 201 mSDtfsCounter, 83 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:55:57,416 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 301 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:55:57,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2714 states. [2024-12-02 14:55:57,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2714 to 2712. [2024-12-02 14:55:57,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2712 states, 2711 states have (on average 1.483954260420509) internal successors, (4023), 2711 states have internal predecessors, (4023), 0 states have call successors, (0), 0 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 14:55:57,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2712 states to 2712 states and 4023 transitions. [2024-12-02 14:55:57,529 INFO L78 Accepts]: Start accepts. Automaton has 2712 states and 4023 transitions. Word has length 67 [2024-12-02 14:55:57,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:55:57,529 INFO L471 AbstractCegarLoop]: Abstraction has 2712 states and 4023 transitions. [2024-12-02 14:55:57,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) 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 14:55:57,530 INFO L276 IsEmpty]: Start isEmpty. Operand 2712 states and 4023 transitions. [2024-12-02 14:55:57,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-12-02 14:55:57,530 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:55:57,530 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:55:57,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 14:55:57,531 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:55:57,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:55:57,531 INFO L85 PathProgramCache]: Analyzing trace with hash 1606582850, now seen corresponding path program 1 times [2024-12-02 14:55:57,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:55:57,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974824033] [2024-12-02 14:55:57,531 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:55:57,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:55:57,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:55:57,612 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 14:55:57,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:55:57,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974824033] [2024-12-02 14:55:57,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974824033] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:55:57,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:55:57,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 14:55:57,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611377659] [2024-12-02 14:55:57,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:55:57,613 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:55:57,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:55:57,613 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:55:57,614 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 14:55:57,614 INFO L87 Difference]: Start difference. First operand 2712 states and 4023 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 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 14:55:57,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:55:57,723 INFO L93 Difference]: Finished difference Result 5375 states and 8029 transitions. [2024-12-02 14:55:57,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:55:57,723 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2024-12-02 14:55:57,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:55:57,738 INFO L225 Difference]: With dead ends: 5375 [2024-12-02 14:55:57,738 INFO L226 Difference]: Without dead ends: 3900 [2024-12-02 14:55:57,741 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 14:55:57,741 INFO L435 NwaCegarLoop]: 214 mSDtfsCounter, 84 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:55:57,742 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 312 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:55:57,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3900 states. [2024-12-02 14:55:57,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3900 to 3898. [2024-12-02 14:55:57,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3898 states, 3897 states have (on average 1.4762637926610214) internal successors, (5753), 3897 states have internal predecessors, (5753), 0 states have call successors, (0), 0 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 14:55:57,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3898 states to 3898 states and 5753 transitions. [2024-12-02 14:55:57,924 INFO L78 Accepts]: Start accepts. Automaton has 3898 states and 5753 transitions. Word has length 68 [2024-12-02 14:55:57,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:55:57,925 INFO L471 AbstractCegarLoop]: Abstraction has 3898 states and 5753 transitions. [2024-12-02 14:55:57,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 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 14:55:57,925 INFO L276 IsEmpty]: Start isEmpty. Operand 3898 states and 5753 transitions. [2024-12-02 14:55:57,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-12-02 14:55:57,927 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:55:57,927 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:55:57,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 14:55:57,928 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:55:57,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:55:57,928 INFO L85 PathProgramCache]: Analyzing trace with hash 539303600, now seen corresponding path program 1 times [2024-12-02 14:55:57,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:55:57,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833596732] [2024-12-02 14:55:57,928 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:55:57,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:55:57,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:55:58,071 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-12-02 14:55:58,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:55:58,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833596732] [2024-12-02 14:55:58,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833596732] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:55:58,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:55:58,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 14:55:58,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283760960] [2024-12-02 14:55:58,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:55:58,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 14:55:58,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:55:58,073 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 14:55:58,073 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 14:55:58,073 INFO L87 Difference]: Start difference. First operand 3898 states and 5753 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:55:58,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:55:58,284 INFO L93 Difference]: Finished difference Result 12998 states and 19423 transitions. [2024-12-02 14:55:58,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 14:55:58,284 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2024-12-02 14:55:58,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:55:58,306 INFO L225 Difference]: With dead ends: 12998 [2024-12-02 14:55:58,306 INFO L226 Difference]: Without dead ends: 11044 [2024-12-02 14:55:58,309 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 14:55:58,310 INFO L435 NwaCegarLoop]: 231 mSDtfsCounter, 976 mSDsluCounter, 650 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 976 SdHoareTripleChecker+Valid, 881 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 14:55:58,310 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [976 Valid, 881 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 14:55:58,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11044 states. [2024-12-02 14:55:58,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11044 to 5802. [2024-12-02 14:55:58,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5802 states, 5801 states have (on average 1.47715911049819) internal successors, (8569), 5801 states have internal predecessors, (8569), 0 states have call successors, (0), 0 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 14:55:58,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5802 states to 5802 states and 8569 transitions. [2024-12-02 14:55:58,499 INFO L78 Accepts]: Start accepts. Automaton has 5802 states and 8569 transitions. Word has length 94 [2024-12-02 14:55:58,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:55:58,499 INFO L471 AbstractCegarLoop]: Abstraction has 5802 states and 8569 transitions. [2024-12-02 14:55:58,499 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:55:58,499 INFO L276 IsEmpty]: Start isEmpty. Operand 5802 states and 8569 transitions. [2024-12-02 14:55:58,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-12-02 14:55:58,502 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:55:58,502 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:55:58,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 14:55:58,502 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:55:58,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:55:58,503 INFO L85 PathProgramCache]: Analyzing trace with hash -162829999, now seen corresponding path program 1 times [2024-12-02 14:55:58,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:55:58,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504046425] [2024-12-02 14:55:58,503 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:55:58,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:55:58,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:55:58,645 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-12-02 14:55:58,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:55:58,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504046425] [2024-12-02 14:55:58,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504046425] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:55:58,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:55:58,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 14:55:58,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527207838] [2024-12-02 14:55:58,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:55:58,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 14:55:58,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:55:58,646 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 14:55:58,646 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 14:55:58,646 INFO L87 Difference]: Start difference. First operand 5802 states and 8569 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:55:58,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:55:58,883 INFO L93 Difference]: Finished difference Result 14902 states and 22239 transitions. [2024-12-02 14:55:58,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 14:55:58,884 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2024-12-02 14:55:58,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:55:58,911 INFO L225 Difference]: With dead ends: 14902 [2024-12-02 14:55:58,912 INFO L226 Difference]: Without dead ends: 12948 [2024-12-02 14:55:58,915 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 14:55:58,916 INFO L435 NwaCegarLoop]: 231 mSDtfsCounter, 941 mSDsluCounter, 676 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 941 SdHoareTripleChecker+Valid, 907 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 14:55:58,916 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [941 Valid, 907 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 14:55:58,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12948 states. [2024-12-02 14:55:59,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12948 to 7706. [2024-12-02 14:55:59,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7706 states, 7705 states have (on average 1.4776119402985075) internal successors, (11385), 7705 states have internal predecessors, (11385), 0 states have call successors, (0), 0 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 14:55:59,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7706 states to 7706 states and 11385 transitions. [2024-12-02 14:55:59,171 INFO L78 Accepts]: Start accepts. Automaton has 7706 states and 11385 transitions. Word has length 94 [2024-12-02 14:55:59,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:55:59,171 INFO L471 AbstractCegarLoop]: Abstraction has 7706 states and 11385 transitions. [2024-12-02 14:55:59,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:55:59,172 INFO L276 IsEmpty]: Start isEmpty. Operand 7706 states and 11385 transitions. [2024-12-02 14:55:59,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-12-02 14:55:59,175 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:55:59,175 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:55:59,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 14:55:59,175 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:55:59,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:55:59,176 INFO L85 PathProgramCache]: Analyzing trace with hash -1963518927, now seen corresponding path program 1 times [2024-12-02 14:55:59,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:55:59,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771759739] [2024-12-02 14:55:59,176 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:55:59,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:55:59,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:55:59,356 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 14:55:59,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:55:59,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771759739] [2024-12-02 14:55:59,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771759739] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:55:59,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:55:59,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 14:55:59,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484366076] [2024-12-02 14:55:59,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:55:59,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 14:55:59,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:55:59,357 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 14:55:59,357 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 14:55:59,357 INFO L87 Difference]: Start difference. First operand 7706 states and 11385 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 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 14:55:59,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:55:59,676 INFO L93 Difference]: Finished difference Result 16806 states and 25055 transitions. [2024-12-02 14:55:59,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 14:55:59,677 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 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 94 [2024-12-02 14:55:59,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:55:59,709 INFO L225 Difference]: With dead ends: 16806 [2024-12-02 14:55:59,709 INFO L226 Difference]: Without dead ends: 14852 [2024-12-02 14:55:59,715 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 14:55:59,715 INFO L435 NwaCegarLoop]: 231 mSDtfsCounter, 850 mSDsluCounter, 739 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 850 SdHoareTripleChecker+Valid, 970 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 14:55:59,715 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [850 Valid, 970 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 14:55:59,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14852 states. [2024-12-02 14:56:00,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14852 to 9610. [2024-12-02 14:56:00,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9610 states, 9609 states have (on average 1.4778853158497243) internal successors, (14201), 9609 states have internal predecessors, (14201), 0 states have call successors, (0), 0 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 14:56:00,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9610 states to 9610 states and 14201 transitions. [2024-12-02 14:56:00,141 INFO L78 Accepts]: Start accepts. Automaton has 9610 states and 14201 transitions. Word has length 94 [2024-12-02 14:56:00,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:56:00,141 INFO L471 AbstractCegarLoop]: Abstraction has 9610 states and 14201 transitions. [2024-12-02 14:56:00,141 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 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 14:56:00,142 INFO L276 IsEmpty]: Start isEmpty. Operand 9610 states and 14201 transitions. [2024-12-02 14:56:00,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-12-02 14:56:00,146 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:56:00,146 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:56:00,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 14:56:00,147 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:56:00,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:56:00,147 INFO L85 PathProgramCache]: Analyzing trace with hash -1054180145, now seen corresponding path program 1 times [2024-12-02 14:56:00,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:56:00,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595311536] [2024-12-02 14:56:00,147 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:56:00,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:56:00,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:56:00,380 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-02 14:56:00,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:56:00,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595311536] [2024-12-02 14:56:00,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595311536] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:56:00,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:56:00,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 14:56:00,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006568741] [2024-12-02 14:56:00,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:56:00,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 14:56:00,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:56:00,381 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 14:56:00,381 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 14:56:00,381 INFO L87 Difference]: Start difference. First operand 9610 states and 14201 transitions. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:56:00,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:56:00,735 INFO L93 Difference]: Finished difference Result 18710 states and 27871 transitions. [2024-12-02 14:56:00,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 14:56:00,736 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2024-12-02 14:56:00,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:56:00,770 INFO L225 Difference]: With dead ends: 18710 [2024-12-02 14:56:00,770 INFO L226 Difference]: Without dead ends: 16756 [2024-12-02 14:56:00,775 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 14:56:00,776 INFO L435 NwaCegarLoop]: 230 mSDtfsCounter, 875 mSDsluCounter, 814 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 875 SdHoareTripleChecker+Valid, 1044 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 14:56:00,776 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [875 Valid, 1044 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 14:56:00,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16756 states. [2024-12-02 14:56:01,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16756 to 11514. [2024-12-02 14:56:01,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11514 states, 11513 states have (on average 1.478068270650569) internal successors, (17017), 11513 states have internal predecessors, (17017), 0 states have call successors, (0), 0 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 14:56:01,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11514 states to 11514 states and 17017 transitions. [2024-12-02 14:56:01,080 INFO L78 Accepts]: Start accepts. Automaton has 11514 states and 17017 transitions. Word has length 94 [2024-12-02 14:56:01,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:56:01,081 INFO L471 AbstractCegarLoop]: Abstraction has 11514 states and 17017 transitions. [2024-12-02 14:56:01,081 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:56:01,081 INFO L276 IsEmpty]: Start isEmpty. Operand 11514 states and 17017 transitions. [2024-12-02 14:56:01,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-12-02 14:56:01,086 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:56:01,086 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:56:01,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 14:56:01,086 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:56:01,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:56:01,087 INFO L85 PathProgramCache]: Analyzing trace with hash -2064142835, now seen corresponding path program 1 times [2024-12-02 14:56:01,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:56:01,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814630734] [2024-12-02 14:56:01,087 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:56:01,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:56:01,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:56:01,213 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:56:01,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:56:01,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814630734] [2024-12-02 14:56:01,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814630734] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:56:01,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:56:01,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 14:56:01,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592141496] [2024-12-02 14:56:01,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:56:01,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:56:01,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:56:01,214 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:56:01,214 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 14:56:01,215 INFO L87 Difference]: Start difference. First operand 11514 states and 17017 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 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 14:56:01,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:56:01,424 INFO L93 Difference]: Finished difference Result 22990 states and 33995 transitions. [2024-12-02 14:56:01,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:56:01,425 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-12-02 14:56:01,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:56:01,448 INFO L225 Difference]: With dead ends: 22990 [2024-12-02 14:56:01,448 INFO L226 Difference]: Without dead ends: 11516 [2024-12-02 14:56:01,459 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 14:56:01,459 INFO L435 NwaCegarLoop]: 178 mSDtfsCounter, 66 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:56:01,460 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 300 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:56:01,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11516 states. [2024-12-02 14:56:01,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11516 to 11514. [2024-12-02 14:56:01,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11514 states, 11513 states have (on average 1.4655606705463389) internal successors, (16873), 11513 states have internal predecessors, (16873), 0 states have call successors, (0), 0 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 14:56:01,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11514 states to 11514 states and 16873 transitions. [2024-12-02 14:56:01,727 INFO L78 Accepts]: Start accepts. Automaton has 11514 states and 16873 transitions. Word has length 95 [2024-12-02 14:56:01,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:56:01,727 INFO L471 AbstractCegarLoop]: Abstraction has 11514 states and 16873 transitions. [2024-12-02 14:56:01,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 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 14:56:01,727 INFO L276 IsEmpty]: Start isEmpty. Operand 11514 states and 16873 transitions. [2024-12-02 14:56:01,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-12-02 14:56:01,730 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:56:01,730 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:56:01,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 14:56:01,730 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:56:01,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:56:01,731 INFO L85 PathProgramCache]: Analyzing trace with hash -1645701620, now seen corresponding path program 1 times [2024-12-02 14:56:01,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:56:01,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993511174] [2024-12-02 14:56:01,731 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:56:01,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:56:01,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:56:01,857 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:56:01,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:56:01,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993511174] [2024-12-02 14:56:01,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993511174] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:56:01,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:56:01,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 14:56:01,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818657775] [2024-12-02 14:56:01,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:56:01,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:56:01,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:56:01,859 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:56:01,859 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 14:56:01,859 INFO L87 Difference]: Start difference. First operand 11514 states and 16873 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 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 14:56:01,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:56:01,997 INFO L93 Difference]: Finished difference Result 17254 states and 25291 transitions. [2024-12-02 14:56:01,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:56:01,997 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-12-02 14:56:01,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:56:02,009 INFO L225 Difference]: With dead ends: 17254 [2024-12-02 14:56:02,009 INFO L226 Difference]: Without dead ends: 5780 [2024-12-02 14:56:02,016 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 14:56:02,017 INFO L435 NwaCegarLoop]: 166 mSDtfsCounter, 60 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:56:02,017 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 278 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:56:02,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5780 states. [2024-12-02 14:56:02,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5780 to 5778. [2024-12-02 14:56:02,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5778 states, 5777 states have (on average 1.451445386879003) internal successors, (8385), 5777 states have internal predecessors, (8385), 0 states have call successors, (0), 0 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 14:56:02,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5778 states to 5778 states and 8385 transitions. [2024-12-02 14:56:02,151 INFO L78 Accepts]: Start accepts. Automaton has 5778 states and 8385 transitions. Word has length 95 [2024-12-02 14:56:02,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:56:02,151 INFO L471 AbstractCegarLoop]: Abstraction has 5778 states and 8385 transitions. [2024-12-02 14:56:02,151 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 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 14:56:02,151 INFO L276 IsEmpty]: Start isEmpty. Operand 5778 states and 8385 transitions. [2024-12-02 14:56:02,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-12-02 14:56:02,153 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:56:02,153 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:56:02,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 14:56:02,154 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:56:02,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:56:02,154 INFO L85 PathProgramCache]: Analyzing trace with hash 1164242187, now seen corresponding path program 1 times [2024-12-02 14:56:02,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:56:02,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100831889] [2024-12-02 14:56:02,155 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:56:02,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:56:02,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:56:02,290 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 14:56:02,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:56:02,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100831889] [2024-12-02 14:56:02,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100831889] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:56:02,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:56:02,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 14:56:02,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577077530] [2024-12-02 14:56:02,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:56:02,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:56:02,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:56:02,291 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:56:02,292 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 14:56:02,292 INFO L87 Difference]: Start difference. First operand 5778 states and 8385 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 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 14:56:02,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:56:02,358 INFO L93 Difference]: Finished difference Result 8650 states and 12559 transitions. [2024-12-02 14:56:02,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:56:02,359 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-12-02 14:56:02,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:56:02,367 INFO L225 Difference]: With dead ends: 8650 [2024-12-02 14:56:02,367 INFO L226 Difference]: Without dead ends: 2912 [2024-12-02 14:56:02,371 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 14:56:02,372 INFO L435 NwaCegarLoop]: 157 mSDtfsCounter, 54 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:56:02,372 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 259 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:56:02,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2912 states. [2024-12-02 14:56:02,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2912 to 2910. [2024-12-02 14:56:02,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2910 states, 2909 states have (on average 1.4358886215194224) internal successors, (4177), 2909 states have internal predecessors, (4177), 0 states have call successors, (0), 0 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 14:56:02,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2910 states to 2910 states and 4177 transitions. [2024-12-02 14:56:02,439 INFO L78 Accepts]: Start accepts. Automaton has 2910 states and 4177 transitions. Word has length 95 [2024-12-02 14:56:02,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:56:02,440 INFO L471 AbstractCegarLoop]: Abstraction has 2910 states and 4177 transitions. [2024-12-02 14:56:02,440 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 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 14:56:02,440 INFO L276 IsEmpty]: Start isEmpty. Operand 2910 states and 4177 transitions. [2024-12-02 14:56:02,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-12-02 14:56:02,441 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:56:02,442 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, 1, 1, 1] [2024-12-02 14:56:02,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 14:56:02,442 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:56:02,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:56:02,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1550490506, now seen corresponding path program 1 times [2024-12-02 14:56:02,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:56:02,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93148929] [2024-12-02 14:56:02,442 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:56:02,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:56:02,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:56:03,066 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:56:03,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:56:03,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93148929] [2024-12-02 14:56:03,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93148929] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:56:03,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1245066856] [2024-12-02 14:56:03,066 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:56:03,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:56:03,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e078e23e-824e-4693-8905-56fd7c1e822e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:56:03,069 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e078e23e-824e-4693-8905-56fd7c1e822e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:56:03,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e078e23e-824e-4693-8905-56fd7c1e822e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 14:56:03,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:56:03,254 INFO L256 TraceCheckSpWp]: Trace formula consists of 427 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-12-02 14:56:03,262 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:56:04,412 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:56:04,412 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 14:56:05,166 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:56:05,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1245066856] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 14:56:05,167 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 14:56:05,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 9] total 25 [2024-12-02 14:56:05,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984031978] [2024-12-02 14:56:05,167 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 14:56:05,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-12-02 14:56:05,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:56:05,168 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-12-02 14:56:05,168 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=482, Unknown=0, NotChecked=0, Total=600 [2024-12-02 14:56:05,169 INFO L87 Difference]: Start difference. First operand 2910 states and 4177 transitions. Second operand has 25 states, 25 states have (on average 10.96) internal successors, (274), 25 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:56:14,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:56:14,090 INFO L93 Difference]: Finished difference Result 37703 states and 53628 transitions. [2024-12-02 14:56:14,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2024-12-02 14:56:14,091 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 10.96) internal successors, (274), 25 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-12-02 14:56:14,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:56:14,126 INFO L225 Difference]: With dead ends: 37703 [2024-12-02 14:56:14,126 INFO L226 Difference]: Without dead ends: 34833 [2024-12-02 14:56:14,134 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 132 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6530 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=3649, Invalid=14173, Unknown=0, NotChecked=0, Total=17822 [2024-12-02 14:56:14,134 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 8597 mSDsluCounter, 1844 mSDsCounter, 0 mSdLazyCounter, 1876 mSolverCounterSat, 168 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8597 SdHoareTripleChecker+Valid, 1997 SdHoareTripleChecker+Invalid, 2044 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 1876 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:56:14,134 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8597 Valid, 1997 Invalid, 2044 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [168 Valid, 1876 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-12-02 14:56:14,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34833 states. [2024-12-02 14:56:14,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34833 to 29371. [2024-12-02 14:56:14,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29371 states, 29370 states have (on average 1.4029281579843378) internal successors, (41204), 29370 states have internal predecessors, (41204), 0 states have call successors, (0), 0 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 14:56:14,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29371 states to 29371 states and 41204 transitions. [2024-12-02 14:56:14,800 INFO L78 Accepts]: Start accepts. Automaton has 29371 states and 41204 transitions. Word has length 95 [2024-12-02 14:56:14,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:56:14,800 INFO L471 AbstractCegarLoop]: Abstraction has 29371 states and 41204 transitions. [2024-12-02 14:56:14,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 10.96) internal successors, (274), 25 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:56:14,800 INFO L276 IsEmpty]: Start isEmpty. Operand 29371 states and 41204 transitions. [2024-12-02 14:56:14,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-12-02 14:56:14,802 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:56:14,802 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:56:14,808 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e078e23e-824e-4693-8905-56fd7c1e822e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 14:56:15,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e078e23e-824e-4693-8905-56fd7c1e822e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-12-02 14:56:15,002 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:56:15,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:56:15,003 INFO L85 PathProgramCache]: Analyzing trace with hash 570191537, now seen corresponding path program 1 times [2024-12-02 14:56:15,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:56:15,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876732809] [2024-12-02 14:56:15,003 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:56:15,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:56:15,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:56:15,154 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-02 14:56:15,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:56:15,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876732809] [2024-12-02 14:56:15,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876732809] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:56:15,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:56:15,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 14:56:15,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405216359] [2024-12-02 14:56:15,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:56:15,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 14:56:15,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:56:15,155 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 14:56:15,155 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 14:56:15,155 INFO L87 Difference]: Start difference. First operand 29371 states and 41204 transitions. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 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 14:56:16,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:56:16,176 INFO L93 Difference]: Finished difference Result 54650 states and 77228 transitions. [2024-12-02 14:56:16,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 14:56:16,177 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 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 96 [2024-12-02 14:56:16,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:56:16,222 INFO L225 Difference]: With dead ends: 54650 [2024-12-02 14:56:16,222 INFO L226 Difference]: Without dead ends: 49568 [2024-12-02 14:56:16,231 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 14:56:16,232 INFO L435 NwaCegarLoop]: 246 mSDtfsCounter, 769 mSDsluCounter, 1086 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 769 SdHoareTripleChecker+Valid, 1332 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 14:56:16,232 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [769 Valid, 1332 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 14:56:16,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49568 states. [2024-12-02 14:56:17,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49568 to 34258. [2024-12-02 14:56:17,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34258 states, 34257 states have (on average 1.4023411273608313) internal successors, (48040), 34257 states have internal predecessors, (48040), 0 states have call successors, (0), 0 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 14:56:17,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34258 states to 34258 states and 48040 transitions. [2024-12-02 14:56:17,126 INFO L78 Accepts]: Start accepts. Automaton has 34258 states and 48040 transitions. Word has length 96 [2024-12-02 14:56:17,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:56:17,126 INFO L471 AbstractCegarLoop]: Abstraction has 34258 states and 48040 transitions. [2024-12-02 14:56:17,126 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 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 14:56:17,126 INFO L276 IsEmpty]: Start isEmpty. Operand 34258 states and 48040 transitions. [2024-12-02 14:56:17,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-12-02 14:56:17,127 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:56:17,127 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:56:17,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 14:56:17,128 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:56:17,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:56:17,128 INFO L85 PathProgramCache]: Analyzing trace with hash -1289334993, now seen corresponding path program 1 times [2024-12-02 14:56:17,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:56:17,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157766533] [2024-12-02 14:56:17,128 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:56:17,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:56:17,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:56:17,497 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:56:17,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:56:17,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157766533] [2024-12-02 14:56:17,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157766533] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:56:17,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1874678206] [2024-12-02 14:56:17,497 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:56:17,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:56:17,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e078e23e-824e-4693-8905-56fd7c1e822e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:56:17,499 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e078e23e-824e-4693-8905-56fd7c1e822e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:56:17,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e078e23e-824e-4693-8905-56fd7c1e822e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 14:56:17,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:56:17,649 INFO L256 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 14:56:17,651 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:56:18,168 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:56:18,168 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 14:56:19,101 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:56:19,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1874678206] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 14:56:19,101 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 14:56:19,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 20 [2024-12-02 14:56:19,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733573216] [2024-12-02 14:56:19,101 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 14:56:19,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-12-02 14:56:19,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:56:19,102 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-12-02 14:56:19,102 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=343, Unknown=0, NotChecked=0, Total=420 [2024-12-02 14:56:19,102 INFO L87 Difference]: Start difference. First operand 34258 states and 48040 transitions. Second operand has 21 states, 21 states have (on average 10.666666666666666) internal successors, (224), 20 states have internal predecessors, (224), 0 states have call successors, (0), 0 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 14:56:21,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:56:21,289 INFO L93 Difference]: Finished difference Result 128725 states and 181697 transitions. [2024-12-02 14:56:21,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-12-02 14:56:21,290 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 10.666666666666666) internal successors, (224), 20 states have internal predecessors, (224), 0 states have call successors, (0), 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 99 [2024-12-02 14:56:21,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:56:21,381 INFO L225 Difference]: With dead ends: 128725 [2024-12-02 14:56:21,381 INFO L226 Difference]: Without dead ends: 94724 [2024-12-02 14:56:21,410 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=329, Invalid=931, Unknown=0, NotChecked=0, Total=1260 [2024-12-02 14:56:21,410 INFO L435 NwaCegarLoop]: 139 mSDtfsCounter, 1417 mSDsluCounter, 773 mSDsCounter, 0 mSdLazyCounter, 606 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1417 SdHoareTripleChecker+Valid, 912 SdHoareTripleChecker+Invalid, 624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 606 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 14:56:21,411 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1417 Valid, 912 Invalid, 624 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 606 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 14:56:21,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94724 states. [2024-12-02 14:56:23,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94724 to 74778. [2024-12-02 14:56:23,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74778 states, 74777 states have (on average 1.3954157026893297) internal successors, (104345), 74777 states have internal predecessors, (104345), 0 states have call successors, (0), 0 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 14:56:23,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74778 states to 74778 states and 104345 transitions. [2024-12-02 14:56:23,296 INFO L78 Accepts]: Start accepts. Automaton has 74778 states and 104345 transitions. Word has length 99 [2024-12-02 14:56:23,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:56:23,297 INFO L471 AbstractCegarLoop]: Abstraction has 74778 states and 104345 transitions. [2024-12-02 14:56:23,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 10.666666666666666) internal successors, (224), 20 states have internal predecessors, (224), 0 states have call successors, (0), 0 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 14:56:23,297 INFO L276 IsEmpty]: Start isEmpty. Operand 74778 states and 104345 transitions. [2024-12-02 14:56:23,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-12-02 14:56:23,298 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:56:23,298 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:56:23,307 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e078e23e-824e-4693-8905-56fd7c1e822e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 14:56:23,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e078e23e-824e-4693-8905-56fd7c1e822e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:56:23,498 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:56:23,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:56:23,499 INFO L85 PathProgramCache]: Analyzing trace with hash 365622195, now seen corresponding path program 1 times [2024-12-02 14:56:23,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:56:23,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678072580] [2024-12-02 14:56:23,499 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:56:23,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:56:23,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:56:24,573 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:56:24,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:56:24,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678072580] [2024-12-02 14:56:24,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678072580] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:56:24,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [454072783] [2024-12-02 14:56:24,574 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:56:24,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:56:24,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e078e23e-824e-4693-8905-56fd7c1e822e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:56:24,575 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e078e23e-824e-4693-8905-56fd7c1e822e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:56:24,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e078e23e-824e-4693-8905-56fd7c1e822e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 14:56:24,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:56:24,703 INFO L256 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-12-02 14:56:24,706 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:56:25,123 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:56:25,123 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 14:56:25,962 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:56:25,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [454072783] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 14:56:25,963 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 14:56:25,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 27 [2024-12-02 14:56:25,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266656453] [2024-12-02 14:56:25,963 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 14:56:25,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-12-02 14:56:25,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:56:25,964 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-12-02 14:56:25,964 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=661, Unknown=0, NotChecked=0, Total=756 [2024-12-02 14:56:25,964 INFO L87 Difference]: Start difference. First operand 74778 states and 104345 transitions. Second operand has 28 states, 28 states have (on average 9.678571428571429) internal successors, (271), 27 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:56:39,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:56:39,497 INFO L93 Difference]: Finished difference Result 636721 states and 885993 transitions. [2024-12-02 14:56:39,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2024-12-02 14:56:39,498 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 9.678571428571429) internal successors, (271), 27 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2024-12-02 14:56:39,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:56:40,060 INFO L225 Difference]: With dead ends: 636721 [2024-12-02 14:56:40,060 INFO L226 Difference]: Without dead ends: 562504 [2024-12-02 14:56:40,137 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1603 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1144, Invalid=5176, Unknown=0, NotChecked=0, Total=6320 [2024-12-02 14:56:40,138 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 4627 mSDsluCounter, 2040 mSDsCounter, 0 mSdLazyCounter, 1935 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4627 SdHoareTripleChecker+Valid, 2161 SdHoareTripleChecker+Invalid, 2004 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 1935 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-12-02 14:56:40,138 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4627 Valid, 2161 Invalid, 2004 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 1935 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-12-02 14:56:40,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562504 states. [2024-12-02 14:56:53,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562504 to 461917. [2024-12-02 14:56:53,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 461917 states, 461916 states have (on average 1.364923492583067) internal successors, (630480), 461916 states have internal predecessors, (630480), 0 states have call successors, (0), 0 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 14:56:54,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461917 states to 461917 states and 630480 transitions. [2024-12-02 14:56:54,430 INFO L78 Accepts]: Start accepts. Automaton has 461917 states and 630480 transitions. Word has length 99 [2024-12-02 14:56:54,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:56:54,430 INFO L471 AbstractCegarLoop]: Abstraction has 461917 states and 630480 transitions. [2024-12-02 14:56:54,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 9.678571428571429) internal successors, (271), 27 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:56:54,431 INFO L276 IsEmpty]: Start isEmpty. Operand 461917 states and 630480 transitions. [2024-12-02 14:56:54,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-12-02 14:56:54,433 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:56:54,434 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, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:56:54,440 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e078e23e-824e-4693-8905-56fd7c1e822e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 14:56:54,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e078e23e-824e-4693-8905-56fd7c1e822e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:56:54,634 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:56:54,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:56:54,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1860018678, now seen corresponding path program 1 times [2024-12-02 14:56:54,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:56:54,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108800485] [2024-12-02 14:56:54,635 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:56:54,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:56:54,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:56:54,676 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:56:54,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:56:54,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108800485] [2024-12-02 14:56:54,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108800485] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:56:54,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:56:54,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 14:56:54,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854137045] [2024-12-02 14:56:54,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:56:54,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:56:54,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:56:54,677 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:56:54,677 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 14:56:54,677 INFO L87 Difference]: Start difference. First operand 461917 states and 630480 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 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 14:57:08,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:57:08,644 INFO L93 Difference]: Finished difference Result 1143286 states and 1561533 transitions. [2024-12-02 14:57:08,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:57:08,645 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 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 100 [2024-12-02 14:57:08,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:57:09,332 INFO L225 Difference]: With dead ends: 1143286 [2024-12-02 14:57:09,332 INFO L226 Difference]: Without dead ends: 681981 [2024-12-02 14:57:09,490 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 14:57:09,491 INFO L435 NwaCegarLoop]: 224 mSDtfsCounter, 56 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:57:09,492 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 352 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:57:09,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 681981 states. [2024-12-02 14:57:24,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 681981 to 628051. [2024-12-02 14:57:25,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 628051 states, 628050 states have (on average 1.3567502587373617) internal successors, (852107), 628050 states have internal predecessors, (852107), 0 states have call successors, (0), 0 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 14:57:26,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628051 states to 628051 states and 852107 transitions. [2024-12-02 14:57:26,357 INFO L78 Accepts]: Start accepts. Automaton has 628051 states and 852107 transitions. Word has length 100 [2024-12-02 14:57:26,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:57:26,358 INFO L471 AbstractCegarLoop]: Abstraction has 628051 states and 852107 transitions. [2024-12-02 14:57:26,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 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 14:57:26,358 INFO L276 IsEmpty]: Start isEmpty. Operand 628051 states and 852107 transitions. [2024-12-02 14:57:26,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-12-02 14:57:26,363 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:57:26,363 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:57:26,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 14:57:26,363 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:57:26,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:57:26,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1800850634, now seen corresponding path program 1 times [2024-12-02 14:57:26,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:57:26,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840089977] [2024-12-02 14:57:26,364 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:57:26,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:57:26,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:57:26,418 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:57:26,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:57:26,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840089977] [2024-12-02 14:57:26,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840089977] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:57:26,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:57:26,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 14:57:26,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106934692] [2024-12-02 14:57:26,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:57:26,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:57:26,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:57:26,419 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:57:26,419 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 14:57:26,420 INFO L87 Difference]: Start difference. First operand 628051 states and 852107 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 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 14:57:44,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:57:44,850 INFO L93 Difference]: Finished difference Result 1537759 states and 2079223 transitions. [2024-12-02 14:57:44,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:57:44,850 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 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 100 [2024-12-02 14:57:44,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:57:45,881 INFO L225 Difference]: With dead ends: 1537759 [2024-12-02 14:57:45,881 INFO L226 Difference]: Without dead ends: 911632 [2024-12-02 14:57:46,343 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 14:57:46,344 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 67 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:57:46,344 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 264 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:57:46,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 911632 states. [2024-12-02 14:58:08,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 911632 to 911630. [2024-12-02 14:58:08,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 911630 states, 911629 states have (on average 1.3359349033433556) internal successors, (1217877), 911629 states have internal predecessors, (1217877), 0 states have call successors, (0), 0 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 14:58:10,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 911630 states to 911630 states and 1217877 transitions. [2024-12-02 14:58:11,000 INFO L78 Accepts]: Start accepts. Automaton has 911630 states and 1217877 transitions. Word has length 100 [2024-12-02 14:58:11,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:58:11,000 INFO L471 AbstractCegarLoop]: Abstraction has 911630 states and 1217877 transitions. [2024-12-02 14:58:11,000 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 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 14:58:11,000 INFO L276 IsEmpty]: Start isEmpty. Operand 911630 states and 1217877 transitions. [2024-12-02 14:58:11,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-12-02 14:58:11,006 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:58:11,006 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:58:11,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-02 14:58:11,006 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:58:11,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:58:11,007 INFO L85 PathProgramCache]: Analyzing trace with hash -1434540994, now seen corresponding path program 1 times [2024-12-02 14:58:11,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:58:11,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299653737] [2024-12-02 14:58:11,007 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:58:11,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:58:11,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:58:11,055 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:58:11,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:58:11,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299653737] [2024-12-02 14:58:11,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299653737] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:58:11,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:58:11,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 14:58:11,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392756197] [2024-12-02 14:58:11,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:58:11,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:58:11,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:58:11,056 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:58:11,056 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 14:58:11,057 INFO L87 Difference]: Start difference. First operand 911630 states and 1217877 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)