./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.p+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea2a11c-0e7f-4b66-85b4-510d84f7580e/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea2a11c-0e7f-4b66-85b4-510d84f7580e/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea2a11c-0e7f-4b66-85b4-510d84f7580e/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea2a11c-0e7f-4b66-85b4-510d84f7580e/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.p+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea2a11c-0e7f-4b66-85b4-510d84f7580e/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea2a11c-0e7f-4b66-85b4-510d84f7580e/bin/uautomizer-verify-jihMAELWvX --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 38de1f601deff70f21f1ef1f0123eb0d7f517b820846e07815605162625b0305 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 17:42:00,726 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 17:42:00,857 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea2a11c-0e7f-4b66-85b4-510d84f7580e/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 17:42:00,866 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 17:42:00,867 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 17:42:00,910 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 17:42:00,910 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 17:42:00,911 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 17:42:00,912 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 17:42:00,913 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 17:42:00,914 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 17:42:00,914 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 17:42:00,915 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 17:42:00,918 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 17:42:00,919 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 17:42:00,920 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 17:42:00,920 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 17:42:00,920 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 17:42:00,921 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 17:42:00,921 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 17:42:00,921 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 17:42:00,922 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 17:42:00,925 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 17:42:00,925 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 17:42:00,925 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 17:42:00,926 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 17:42:00,926 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 17:42:00,927 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 17:42:00,927 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 17:42:00,931 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 17:42:00,931 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 17:42:00,931 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 17:42:00,932 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:42:00,932 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 17:42:00,932 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 17:42:00,933 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 17:42:00,933 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 17:42:00,933 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 17:42:00,933 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 17:42:00,934 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 17:42:00,934 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 17:42:00,936 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 17:42:00,936 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea2a11c-0e7f-4b66-85b4-510d84f7580e/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea2a11c-0e7f-4b66-85b4-510d84f7580e/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 38de1f601deff70f21f1ef1f0123eb0d7f517b820846e07815605162625b0305 [2024-11-08 17:42:01,352 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 17:42:01,390 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 17:42:01,394 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 17:42:01,396 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 17:42:01,396 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 17:42:01,398 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea2a11c-0e7f-4b66-85b4-510d84f7580e/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.p+lhb-reducer.c Unable to find full path for "g++" [2024-11-08 17:42:04,062 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 17:42:04,590 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 17:42:04,593 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea2a11c-0e7f-4b66-85b4-510d84f7580e/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.p+lhb-reducer.c [2024-11-08 17:42:04,640 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea2a11c-0e7f-4b66-85b4-510d84f7580e/bin/uautomizer-verify-jihMAELWvX/data/aa0893426/a7105a4cb1024d8e84dbab990a906a25/FLAGf7636350b [2024-11-08 17:42:04,664 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea2a11c-0e7f-4b66-85b4-510d84f7580e/bin/uautomizer-verify-jihMAELWvX/data/aa0893426/a7105a4cb1024d8e84dbab990a906a25 [2024-11-08 17:42:04,668 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 17:42:04,670 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 17:42:04,673 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 17:42:04,674 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 17:42:04,703 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 17:42:04,705 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:42:04" (1/1) ... [2024-11-08 17:42:04,706 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63b4e8c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:42:04, skipping insertion in model container [2024-11-08 17:42:04,713 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:42:04" (1/1) ... [2024-11-08 17:42:04,862 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 17:42:05,818 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_6ea2a11c-0e7f-4b66-85b4-510d84f7580e/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.p+lhb-reducer.c[30493,30506] [2024-11-08 17:42:05,938 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_6ea2a11c-0e7f-4b66-85b4-510d84f7580e/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.p+lhb-reducer.c[33882,33895] [2024-11-08 17:42:06,272 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:42:06,293 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 17:42:06,667 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_6ea2a11c-0e7f-4b66-85b4-510d84f7580e/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.p+lhb-reducer.c[30493,30506] [2024-11-08 17:42:06,759 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_6ea2a11c-0e7f-4b66-85b4-510d84f7580e/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.p+lhb-reducer.c[33882,33895] [2024-11-08 17:42:07,089 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:42:07,119 INFO L204 MainTranslator]: Completed translation [2024-11-08 17:42:07,120 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:42:07 WrapperNode [2024-11-08 17:42:07,120 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 17:42:07,122 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 17:42:07,122 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 17:42:07,122 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 17:42:07,133 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:42:07" (1/1) ... [2024-11-08 17:42:07,189 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:42:07" (1/1) ... [2024-11-08 17:42:07,322 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 3966 [2024-11-08 17:42:07,322 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 17:42:07,324 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 17:42:07,324 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 17:42:07,325 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 17:42:07,340 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:42:07" (1/1) ... [2024-11-08 17:42:07,340 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:42:07" (1/1) ... [2024-11-08 17:42:07,357 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:42:07" (1/1) ... [2024-11-08 17:42:07,428 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-08 17:42:07,432 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:42:07" (1/1) ... [2024-11-08 17:42:07,433 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:42:07" (1/1) ... [2024-11-08 17:42:07,483 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:42:07" (1/1) ... [2024-11-08 17:42:07,510 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:42:07" (1/1) ... [2024-11-08 17:42:07,540 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:42:07" (1/1) ... [2024-11-08 17:42:07,557 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:42:07" (1/1) ... [2024-11-08 17:42:07,596 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 17:42:07,598 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 17:42:07,598 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 17:42:07,599 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 17:42:07,601 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:42:07" (1/1) ... [2024-11-08 17:42:07,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:42:07,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea2a11c-0e7f-4b66-85b4-510d84f7580e/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:42:07,640 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea2a11c-0e7f-4b66-85b4-510d84f7580e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 17:42:07,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea2a11c-0e7f-4b66-85b4-510d84f7580e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 17:42:07,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 17:42:07,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 17:42:07,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 17:42:07,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 17:42:07,974 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 17:42:07,977 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 17:42:11,878 INFO L? ?]: Removed 221 outVars from TransFormulas that were not future-live. [2024-11-08 17:42:11,878 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 17:42:11,919 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 17:42:11,920 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 17:42:11,920 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:42:11 BoogieIcfgContainer [2024-11-08 17:42:11,920 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 17:42:11,923 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 17:42:11,923 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 17:42:11,927 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 17:42:11,927 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:42:04" (1/3) ... [2024-11-08 17:42:11,928 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5112575 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:42:11, skipping insertion in model container [2024-11-08 17:42:11,928 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:42:07" (2/3) ... [2024-11-08 17:42:11,929 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5112575 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:42:11, skipping insertion in model container [2024-11-08 17:42:11,929 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:42:11" (3/3) ... [2024-11-08 17:42:11,930 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_floodmax.4.ufo.UNBOUNDED.pals.c.p+lhb-reducer.c [2024-11-08 17:42:11,949 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 17:42:11,950 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-08 17:42:12,084 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:42:12,090 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;@5c3da5cf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:42:12,091 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-08 17:42:12,101 INFO L276 IsEmpty]: Start isEmpty. Operand has 1121 states, 1118 states have (on average 1.7361359570661896) internal successors, (1941), 1120 states have internal predecessors, (1941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:42:12,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-08 17:42:12,131 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:42:12,132 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:42:12,132 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:42:12,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:42:12,139 INFO L85 PathProgramCache]: Analyzing trace with hash 456360996, now seen corresponding path program 1 times [2024-11-08 17:42:12,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:42:12,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80568899] [2024-11-08 17:42:12,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:42:12,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:42:12,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:42:13,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:42:13,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:42:13,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80568899] [2024-11-08 17:42:13,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80568899] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:42:13,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:42:13,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 17:42:13,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128987581] [2024-11-08 17:42:13,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:42:13,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:42:13,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:42:13,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:42:13,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:42:13,209 INFO L87 Difference]: Start difference. First operand has 1121 states, 1118 states have (on average 1.7361359570661896) internal successors, (1941), 1120 states have internal predecessors, (1941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:42:13,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:42:13,501 INFO L93 Difference]: Finished difference Result 2054 states and 3532 transitions. [2024-11-08 17:42:13,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:42:13,504 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 0 states have call successors, (0), 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 150 [2024-11-08 17:42:13,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:42:13,530 INFO L225 Difference]: With dead ends: 2054 [2024-11-08 17:42:13,530 INFO L226 Difference]: Without dead ends: 1118 [2024-11-08 17:42:13,540 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:42:13,546 INFO L432 NwaCegarLoop]: 1937 mSDtfsCounter, 0 mSDsluCounter, 3826 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5763 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 17:42:13,548 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5763 Invalid, 53 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [41 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 17:42:13,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1118 states. [2024-11-08 17:42:13,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1118 to 1118. [2024-11-08 17:42:13,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1118 states, 1116 states have (on average 1.6926523297491038) internal successors, (1889), 1117 states have internal predecessors, (1889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:42:13,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1118 states to 1118 states and 1889 transitions. [2024-11-08 17:42:13,654 INFO L78 Accepts]: Start accepts. Automaton has 1118 states and 1889 transitions. Word has length 150 [2024-11-08 17:42:13,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:42:13,654 INFO L471 AbstractCegarLoop]: Abstraction has 1118 states and 1889 transitions. [2024-11-08 17:42:13,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:42:13,655 INFO L276 IsEmpty]: Start isEmpty. Operand 1118 states and 1889 transitions. [2024-11-08 17:42:13,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-11-08 17:42:13,663 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:42:13,664 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:42:13,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 17:42:13,664 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:42:13,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:42:13,665 INFO L85 PathProgramCache]: Analyzing trace with hash -1166050469, now seen corresponding path program 1 times [2024-11-08 17:42:13,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:42:13,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031333041] [2024-11-08 17:42:13,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:42:13,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:42:13,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:42:14,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:42:14,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:42:14,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031333041] [2024-11-08 17:42:14,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031333041] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:42:14,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:42:14,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:42:14,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918634467] [2024-11-08 17:42:14,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:42:14,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:42:14,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:42:14,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:42:14,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:42:14,087 INFO L87 Difference]: Start difference. First operand 1118 states and 1889 transitions. Second operand has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:42:14,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:42:14,478 INFO L93 Difference]: Finished difference Result 2859 states and 4838 transitions. [2024-11-08 17:42:14,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:42:14,479 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 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 191 [2024-11-08 17:42:14,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:42:14,488 INFO L225 Difference]: With dead ends: 2859 [2024-11-08 17:42:14,488 INFO L226 Difference]: Without dead ends: 1949 [2024-11-08 17:42:14,491 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:42:14,492 INFO L432 NwaCegarLoop]: 3002 mSDtfsCounter, 1382 mSDsluCounter, 1721 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1382 SdHoareTripleChecker+Valid, 4723 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 17:42:14,493 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1382 Valid, 4723 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 17:42:14,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1949 states. [2024-11-08 17:42:14,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1949 to 1939. [2024-11-08 17:42:14,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1939 states, 1937 states have (on average 1.6721734641197727) internal successors, (3239), 1938 states have internal predecessors, (3239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:42:14,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1939 states to 1939 states and 3239 transitions. [2024-11-08 17:42:14,606 INFO L78 Accepts]: Start accepts. Automaton has 1939 states and 3239 transitions. Word has length 191 [2024-11-08 17:42:14,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:42:14,607 INFO L471 AbstractCegarLoop]: Abstraction has 1939 states and 3239 transitions. [2024-11-08 17:42:14,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:42:14,609 INFO L276 IsEmpty]: Start isEmpty. Operand 1939 states and 3239 transitions. [2024-11-08 17:42:14,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-11-08 17:42:14,615 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:42:14,615 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:42:14,616 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 17:42:14,616 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:42:14,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:42:14,616 INFO L85 PathProgramCache]: Analyzing trace with hash 955874818, now seen corresponding path program 1 times [2024-11-08 17:42:14,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:42:14,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932067631] [2024-11-08 17:42:14,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:42:14,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:42:14,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:42:14,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:42:14,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:42:14,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932067631] [2024-11-08 17:42:14,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932067631] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:42:14,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:42:14,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:42:14,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058189052] [2024-11-08 17:42:14,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:42:14,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:42:14,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:42:14,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:42:14,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:42:14,877 INFO L87 Difference]: Start difference. First operand 1939 states and 3239 transitions. Second operand has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:42:15,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:42:15,036 INFO L93 Difference]: Finished difference Result 3238 states and 5452 transitions. [2024-11-08 17:42:15,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:42:15,037 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 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 196 [2024-11-08 17:42:15,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:42:15,048 INFO L225 Difference]: With dead ends: 3238 [2024-11-08 17:42:15,049 INFO L226 Difference]: Without dead ends: 2328 [2024-11-08 17:42:15,053 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:42:15,054 INFO L432 NwaCegarLoop]: 2907 mSDtfsCounter, 1241 mSDsluCounter, 1634 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1241 SdHoareTripleChecker+Valid, 4541 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:42:15,056 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1241 Valid, 4541 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 17:42:15,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2328 states. [2024-11-08 17:42:15,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2328 to 2324. [2024-11-08 17:42:15,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2324 states, 2322 states have (on average 1.677433247200689) internal successors, (3895), 2323 states have internal predecessors, (3895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:42:15,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2324 states to 2324 states and 3895 transitions. [2024-11-08 17:42:15,125 INFO L78 Accepts]: Start accepts. Automaton has 2324 states and 3895 transitions. Word has length 196 [2024-11-08 17:42:15,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:42:15,130 INFO L471 AbstractCegarLoop]: Abstraction has 2324 states and 3895 transitions. [2024-11-08 17:42:15,130 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:42:15,130 INFO L276 IsEmpty]: Start isEmpty. Operand 2324 states and 3895 transitions. [2024-11-08 17:42:15,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-11-08 17:42:15,137 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:42:15,137 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:42:15,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 17:42:15,137 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:42:15,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:42:15,138 INFO L85 PathProgramCache]: Analyzing trace with hash 339194995, now seen corresponding path program 1 times [2024-11-08 17:42:15,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:42:15,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249116707] [2024-11-08 17:42:15,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:42:15,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:42:15,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:42:15,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:42:15,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:42:15,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249116707] [2024-11-08 17:42:15,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249116707] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:42:15,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:42:15,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:42:15,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535898836] [2024-11-08 17:42:15,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:42:15,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:42:15,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:42:15,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:42:15,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:42:15,423 INFO L87 Difference]: Start difference. First operand 2324 states and 3895 transitions. Second operand has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:42:15,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:42:15,630 INFO L93 Difference]: Finished difference Result 6356 states and 10643 transitions. [2024-11-08 17:42:15,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:42:15,631 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 0 states have call successors, (0), 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 199 [2024-11-08 17:42:15,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:42:15,647 INFO L225 Difference]: With dead ends: 6356 [2024-11-08 17:42:15,647 INFO L226 Difference]: Without dead ends: 4258 [2024-11-08 17:42:15,652 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:42:15,653 INFO L432 NwaCegarLoop]: 2994 mSDtfsCounter, 1399 mSDsluCounter, 1718 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1399 SdHoareTripleChecker+Valid, 4712 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:42:15,655 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1399 Valid, 4712 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 17:42:15,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4258 states. [2024-11-08 17:42:15,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4258 to 4237. [2024-11-08 17:42:15,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4237 states, 4235 states have (on average 1.667060212514758) internal successors, (7060), 4236 states have internal predecessors, (7060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:42:15,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4237 states to 4237 states and 7060 transitions. [2024-11-08 17:42:15,768 INFO L78 Accepts]: Start accepts. Automaton has 4237 states and 7060 transitions. Word has length 199 [2024-11-08 17:42:15,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:42:15,768 INFO L471 AbstractCegarLoop]: Abstraction has 4237 states and 7060 transitions. [2024-11-08 17:42:15,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:42:15,770 INFO L276 IsEmpty]: Start isEmpty. Operand 4237 states and 7060 transitions. [2024-11-08 17:42:15,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-08 17:42:15,778 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:42:15,779 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:42:15,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 17:42:15,779 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:42:15,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:42:15,781 INFO L85 PathProgramCache]: Analyzing trace with hash 62690234, now seen corresponding path program 1 times [2024-11-08 17:42:15,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:42:15,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144914742] [2024-11-08 17:42:15,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:42:15,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:42:15,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:42:16,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:42:16,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:42:16,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144914742] [2024-11-08 17:42:16,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144914742] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:42:16,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:42:16,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:42:16,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264988155] [2024-11-08 17:42:16,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:42:16,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:42:16,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:42:16,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:42:16,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:42:16,071 INFO L87 Difference]: Start difference. First operand 4237 states and 7060 transitions. Second operand has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:42:16,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:42:16,288 INFO L93 Difference]: Finished difference Result 7494 states and 12548 transitions. [2024-11-08 17:42:16,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:42:16,289 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 0 states have call successors, (0), 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 204 [2024-11-08 17:42:16,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:42:16,307 INFO L225 Difference]: With dead ends: 7494 [2024-11-08 17:42:16,308 INFO L226 Difference]: Without dead ends: 5396 [2024-11-08 17:42:16,312 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:42:16,315 INFO L432 NwaCegarLoop]: 2840 mSDtfsCounter, 1212 mSDsluCounter, 1591 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1212 SdHoareTripleChecker+Valid, 4431 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:42:16,316 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1212 Valid, 4431 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 17:42:16,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5396 states. [2024-11-08 17:42:16,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5396 to 5392. [2024-11-08 17:42:16,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5392 states, 5390 states have (on average 1.6701298701298701) internal successors, (9002), 5391 states have internal predecessors, (9002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:42:16,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5392 states to 5392 states and 9002 transitions. [2024-11-08 17:42:16,446 INFO L78 Accepts]: Start accepts. Automaton has 5392 states and 9002 transitions. Word has length 204 [2024-11-08 17:42:16,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:42:16,446 INFO L471 AbstractCegarLoop]: Abstraction has 5392 states and 9002 transitions. [2024-11-08 17:42:16,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:42:16,447 INFO L276 IsEmpty]: Start isEmpty. Operand 5392 states and 9002 transitions. [2024-11-08 17:42:16,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2024-11-08 17:42:16,457 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:42:16,458 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:42:16,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 17:42:16,458 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:42:16,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:42:16,459 INFO L85 PathProgramCache]: Analyzing trace with hash 1975423087, now seen corresponding path program 1 times [2024-11-08 17:42:16,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:42:16,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059714565] [2024-11-08 17:42:16,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:42:16,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:42:16,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:42:16,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:42:16,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:42:16,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059714565] [2024-11-08 17:42:16,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059714565] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:42:16,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:42:16,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:42:16,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166780043] [2024-11-08 17:42:16,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:42:16,755 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:42:16,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:42:16,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:42:16,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:42:16,757 INFO L87 Difference]: Start difference. First operand 5392 states and 9002 transitions. Second operand has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:42:17,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:42:17,092 INFO L93 Difference]: Finished difference Result 15236 states and 25366 transitions. [2024-11-08 17:42:17,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:42:17,093 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 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 207 [2024-11-08 17:42:17,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:42:17,132 INFO L225 Difference]: With dead ends: 15236 [2024-11-08 17:42:17,132 INFO L226 Difference]: Without dead ends: 10088 [2024-11-08 17:42:17,140 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:42:17,141 INFO L432 NwaCegarLoop]: 2919 mSDtfsCounter, 1368 mSDsluCounter, 1667 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1368 SdHoareTripleChecker+Valid, 4586 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 17:42:17,142 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1368 Valid, 4586 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 17:42:17,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10088 states. [2024-11-08 17:42:17,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10088 to 10035. [2024-11-08 17:42:17,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10035 states, 10033 states have (on average 1.6552377155387221) internal successors, (16607), 10034 states have internal predecessors, (16607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:42:17,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10035 states to 10035 states and 16607 transitions. [2024-11-08 17:42:17,455 INFO L78 Accepts]: Start accepts. Automaton has 10035 states and 16607 transitions. Word has length 207 [2024-11-08 17:42:17,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:42:17,456 INFO L471 AbstractCegarLoop]: Abstraction has 10035 states and 16607 transitions. [2024-11-08 17:42:17,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:42:17,457 INFO L276 IsEmpty]: Start isEmpty. Operand 10035 states and 16607 transitions. [2024-11-08 17:42:17,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2024-11-08 17:42:17,474 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:42:17,475 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:42:17,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 17:42:17,475 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:42:17,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:42:17,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1745832106, now seen corresponding path program 1 times [2024-11-08 17:42:17,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:42:17,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100615021] [2024-11-08 17:42:17,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:42:17,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:42:17,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:42:17,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:42:17,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:42:17,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100615021] [2024-11-08 17:42:17,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100615021] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:42:17,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:42:17,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:42:17,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389504649] [2024-11-08 17:42:17,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:42:17,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:42:17,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:42:17,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:42:17,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:42:17,776 INFO L87 Difference]: Start difference. First operand 10035 states and 16607 transitions. Second operand has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:42:18,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:42:18,042 INFO L93 Difference]: Finished difference Result 18168 states and 30221 transitions. [2024-11-08 17:42:18,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:42:18,043 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 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 212 [2024-11-08 17:42:18,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:42:18,074 INFO L225 Difference]: With dead ends: 18168 [2024-11-08 17:42:18,074 INFO L226 Difference]: Without dead ends: 13020 [2024-11-08 17:42:18,084 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:42:18,085 INFO L432 NwaCegarLoop]: 2765 mSDtfsCounter, 1183 mSDsluCounter, 1540 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1183 SdHoareTripleChecker+Valid, 4305 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:42:18,085 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1183 Valid, 4305 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 17:42:18,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13020 states. [2024-11-08 17:42:18,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13020 to 13016. [2024-11-08 17:42:18,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13016 states, 13014 states have (on average 1.657061625941294) internal successors, (21565), 13015 states have internal predecessors, (21565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:42:18,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13016 states to 13016 states and 21565 transitions. [2024-11-08 17:42:18,410 INFO L78 Accepts]: Start accepts. Automaton has 13016 states and 21565 transitions. Word has length 212 [2024-11-08 17:42:18,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:42:18,411 INFO L471 AbstractCegarLoop]: Abstraction has 13016 states and 21565 transitions. [2024-11-08 17:42:18,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:42:18,412 INFO L276 IsEmpty]: Start isEmpty. Operand 13016 states and 21565 transitions. [2024-11-08 17:42:18,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2024-11-08 17:42:18,489 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:42:18,490 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:42:18,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 17:42:18,490 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:42:18,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:42:18,491 INFO L85 PathProgramCache]: Analyzing trace with hash -1067466193, now seen corresponding path program 1 times [2024-11-08 17:42:18,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:42:18,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286218031] [2024-11-08 17:42:18,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:42:18,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:42:18,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:42:18,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:42:18,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:42:18,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286218031] [2024-11-08 17:42:18,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286218031] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:42:18,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:42:18,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:42:18,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349023816] [2024-11-08 17:42:18,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:42:18,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:42:18,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:42:18,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:42:18,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:42:18,821 INFO L87 Difference]: Start difference. First operand 13016 states and 21565 transitions. Second operand has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:42:19,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:42:19,318 INFO L93 Difference]: Finished difference Result 37226 states and 61403 transitions. [2024-11-08 17:42:19,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:42:19,319 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 0 states have call successors, (0), 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 215 [2024-11-08 17:42:19,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:42:19,382 INFO L225 Difference]: With dead ends: 37226 [2024-11-08 17:42:19,382 INFO L226 Difference]: Without dead ends: 24472 [2024-11-08 17:42:19,400 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:42:19,401 INFO L432 NwaCegarLoop]: 2844 mSDtfsCounter, 1337 mSDsluCounter, 1616 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1337 SdHoareTripleChecker+Valid, 4460 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 17:42:19,401 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1337 Valid, 4460 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 17:42:19,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24472 states. [2024-11-08 17:42:19,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24472 to 24325. [2024-11-08 17:42:20,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24325 states, 24323 states have (on average 1.637380257369568) internal successors, (39826), 24324 states have internal predecessors, (39826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:42:20,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24325 states to 24325 states and 39826 transitions. [2024-11-08 17:42:20,167 INFO L78 Accepts]: Start accepts. Automaton has 24325 states and 39826 transitions. Word has length 215 [2024-11-08 17:42:20,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:42:20,167 INFO L471 AbstractCegarLoop]: Abstraction has 24325 states and 39826 transitions. [2024-11-08 17:42:20,168 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:42:20,168 INFO L276 IsEmpty]: Start isEmpty. Operand 24325 states and 39826 transitions. [2024-11-08 17:42:20,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2024-11-08 17:42:20,206 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:42:20,206 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:42:20,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 17:42:20,207 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:42:20,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:42:20,208 INFO L85 PathProgramCache]: Analyzing trace with hash -518054986, now seen corresponding path program 1 times [2024-11-08 17:42:20,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:42:20,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668225495] [2024-11-08 17:42:20,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:42:20,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:42:20,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:42:20,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:42:20,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:42:20,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668225495] [2024-11-08 17:42:20,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668225495] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:42:20,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:42:20,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:42:20,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042809408] [2024-11-08 17:42:20,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:42:20,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:42:20,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:42:20,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:42:20,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:42:20,577 INFO L87 Difference]: Start difference. First operand 24325 states and 39826 transitions. Second operand has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 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) [2024-11-08 17:42:20,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:42:20,872 INFO L93 Difference]: Finished difference Result 44146 states and 72658 transitions. [2024-11-08 17:42:20,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:42:20,873 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 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) Word has length 220 [2024-11-08 17:42:20,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:42:20,949 INFO L225 Difference]: With dead ends: 44146 [2024-11-08 17:42:20,949 INFO L226 Difference]: Without dead ends: 31392 [2024-11-08 17:42:20,973 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:42:20,974 INFO L432 NwaCegarLoop]: 2690 mSDtfsCounter, 1154 mSDsluCounter, 1489 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1154 SdHoareTripleChecker+Valid, 4179 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:42:20,974 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1154 Valid, 4179 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 17:42:21,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31392 states. [2024-11-08 17:42:21,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31392 to 31388. [2024-11-08 17:42:21,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31388 states, 31386 states have (on average 1.636908175619703) internal successors, (51376), 31387 states have internal predecessors, (51376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:42:21,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31388 states to 31388 states and 51376 transitions. [2024-11-08 17:42:21,898 INFO L78 Accepts]: Start accepts. Automaton has 31388 states and 51376 transitions. Word has length 220 [2024-11-08 17:42:21,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:42:21,899 INFO L471 AbstractCegarLoop]: Abstraction has 31388 states and 51376 transitions. [2024-11-08 17:42:21,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 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) [2024-11-08 17:42:21,900 INFO L276 IsEmpty]: Start isEmpty. Operand 31388 states and 51376 transitions. [2024-11-08 17:42:22,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2024-11-08 17:42:22,073 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:42:22,074 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:42:22,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 17:42:22,074 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:42:22,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:42:22,085 INFO L85 PathProgramCache]: Analyzing trace with hash 855859059, now seen corresponding path program 1 times [2024-11-08 17:42:22,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:42:22,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076600012] [2024-11-08 17:42:22,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:42:22,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:42:22,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:42:22,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:42:22,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:42:22,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076600012] [2024-11-08 17:42:22,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076600012] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:42:22,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:42:22,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 17:42:22,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819091199] [2024-11-08 17:42:22,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:42:22,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:42:22,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:42:22,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:42:22,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 17:42:22,685 INFO L87 Difference]: Start difference. First operand 31388 states and 51376 transitions. Second operand has 6 states, 6 states have (on average 37.166666666666664) internal successors, (223), 6 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:42:25,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:42:25,650 INFO L93 Difference]: Finished difference Result 198225 states and 327011 transitions. [2024-11-08 17:42:25,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 17:42:25,651 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 37.166666666666664) internal successors, (223), 6 states have internal predecessors, (223), 0 states have call successors, (0), 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 223 [2024-11-08 17:42:25,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:42:26,373 INFO L225 Difference]: With dead ends: 198225 [2024-11-08 17:42:26,374 INFO L226 Difference]: Without dead ends: 167111 [2024-11-08 17:42:26,445 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-08 17:42:26,446 INFO L432 NwaCegarLoop]: 3517 mSDtfsCounter, 10966 mSDsluCounter, 10451 mSDsCounter, 0 mSdLazyCounter, 854 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10966 SdHoareTripleChecker+Valid, 13968 SdHoareTripleChecker+Invalid, 916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 854 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-08 17:42:26,447 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10966 Valid, 13968 Invalid, 916 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [62 Valid, 854 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-08 17:42:26,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167111 states. [2024-11-08 17:42:28,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167111 to 61336. [2024-11-08 17:42:28,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61336 states, 61334 states have (on average 1.6298627188834904) internal successors, (99966), 61335 states have internal predecessors, (99966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:42:29,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61336 states to 61336 states and 99966 transitions. [2024-11-08 17:42:29,506 INFO L78 Accepts]: Start accepts. Automaton has 61336 states and 99966 transitions. Word has length 223 [2024-11-08 17:42:29,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:42:29,507 INFO L471 AbstractCegarLoop]: Abstraction has 61336 states and 99966 transitions. [2024-11-08 17:42:29,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 37.166666666666664) internal successors, (223), 6 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:42:29,508 INFO L276 IsEmpty]: Start isEmpty. Operand 61336 states and 99966 transitions. [2024-11-08 17:42:29,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2024-11-08 17:42:29,687 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:42:29,687 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:42:29,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 17:42:29,688 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:42:29,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:42:29,689 INFO L85 PathProgramCache]: Analyzing trace with hash -1539236947, now seen corresponding path program 1 times [2024-11-08 17:42:29,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:42:29,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850905316] [2024-11-08 17:42:29,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:42:29,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:42:29,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:42:30,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:42:30,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:42:30,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850905316] [2024-11-08 17:42:30,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850905316] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:42:30,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:42:30,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 17:42:30,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218730648] [2024-11-08 17:42:30,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:42:30,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:42:30,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:42:30,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:42:30,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:42:30,171 INFO L87 Difference]: Start difference. First operand 61336 states and 99966 transitions. Second operand has 4 states, 4 states have (on average 56.25) internal successors, (225), 4 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:42:31,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:42:31,822 INFO L93 Difference]: Finished difference Result 200629 states and 328993 transitions. [2024-11-08 17:42:31,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:42:31,823 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 56.25) internal successors, (225), 4 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 225 [2024-11-08 17:42:31,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:42:32,065 INFO L225 Difference]: With dead ends: 200629 [2024-11-08 17:42:32,065 INFO L226 Difference]: Without dead ends: 139567 [2024-11-08 17:42:32,127 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:42:32,128 INFO L432 NwaCegarLoop]: 1755 mSDtfsCounter, 4165 mSDsluCounter, 4052 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4165 SdHoareTripleChecker+Valid, 5807 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 17:42:32,129 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4165 Valid, 5807 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 17:42:32,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139567 states. [2024-11-08 17:42:34,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139567 to 100928. [2024-11-08 17:42:34,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100928 states, 100926 states have (on average 1.6307888948338387) internal successors, (164589), 100927 states have internal predecessors, (164589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:42:34,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100928 states to 100928 states and 164589 transitions. [2024-11-08 17:42:34,799 INFO L78 Accepts]: Start accepts. Automaton has 100928 states and 164589 transitions. Word has length 225 [2024-11-08 17:42:34,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:42:34,800 INFO L471 AbstractCegarLoop]: Abstraction has 100928 states and 164589 transitions. [2024-11-08 17:42:34,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.25) internal successors, (225), 4 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:42:34,800 INFO L276 IsEmpty]: Start isEmpty. Operand 100928 states and 164589 transitions. [2024-11-08 17:42:34,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2024-11-08 17:42:34,935 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:42:34,936 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:42:34,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 17:42:34,936 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:42:34,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:42:34,937 INFO L85 PathProgramCache]: Analyzing trace with hash -2146001833, now seen corresponding path program 1 times [2024-11-08 17:42:34,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:42:34,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054067468] [2024-11-08 17:42:34,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:42:34,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:42:35,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:42:35,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:42:35,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:42:35,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054067468] [2024-11-08 17:42:35,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054067468] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:42:35,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:42:35,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 17:42:35,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698376011] [2024-11-08 17:42:35,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:42:35,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:42:35,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:42:35,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:42:35,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:42:35,369 INFO L87 Difference]: Start difference. First operand 100928 states and 164589 transitions. Second operand has 4 states, 4 states have (on average 56.5) internal successors, (226), 4 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:42:37,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:42:37,459 INFO L93 Difference]: Finished difference Result 326563 states and 533826 transitions. [2024-11-08 17:42:37,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:42:37,460 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 56.5) internal successors, (226), 4 states have internal predecessors, (226), 0 states have call successors, (0), 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 226 [2024-11-08 17:42:37,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:42:38,565 INFO L225 Difference]: With dead ends: 326563 [2024-11-08 17:42:38,565 INFO L226 Difference]: Without dead ends: 225909 [2024-11-08 17:42:38,636 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:42:38,640 INFO L432 NwaCegarLoop]: 1754 mSDtfsCounter, 4114 mSDsluCounter, 4070 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4114 SdHoareTripleChecker+Valid, 5824 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:42:38,640 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4114 Valid, 5824 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-08 17:42:38,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225909 states. [2024-11-08 17:42:41,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225909 to 164024. [2024-11-08 17:42:41,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164024 states, 164022 states have (on average 1.6255014571216055) internal successors, (266618), 164023 states have internal predecessors, (266618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:42:42,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164024 states to 164024 states and 266618 transitions. [2024-11-08 17:42:42,265 INFO L78 Accepts]: Start accepts. Automaton has 164024 states and 266618 transitions. Word has length 226 [2024-11-08 17:42:42,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:42:42,266 INFO L471 AbstractCegarLoop]: Abstraction has 164024 states and 266618 transitions. [2024-11-08 17:42:42,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.5) internal successors, (226), 4 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:42:42,267 INFO L276 IsEmpty]: Start isEmpty. Operand 164024 states and 266618 transitions. [2024-11-08 17:42:43,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2024-11-08 17:42:43,230 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:42:43,230 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:42:43,230 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 17:42:43,230 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:42:43,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:42:43,231 INFO L85 PathProgramCache]: Analyzing trace with hash 989961350, now seen corresponding path program 1 times [2024-11-08 17:42:43,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:42:43,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377063599] [2024-11-08 17:42:43,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:42:43,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:42:43,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:42:43,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:42:43,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:42:43,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377063599] [2024-11-08 17:42:43,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377063599] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:42:43,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:42:43,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 17:42:43,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846053083] [2024-11-08 17:42:43,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:42:43,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:42:43,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:42:43,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:42:43,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:42:43,798 INFO L87 Difference]: Start difference. First operand 164024 states and 266618 transitions. Second operand has 4 states, 4 states have (on average 56.75) internal successors, (227), 4 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:42:46,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:42:46,862 INFO L93 Difference]: Finished difference Result 526603 states and 858078 transitions. [2024-11-08 17:42:46,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:42:46,863 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 56.75) internal successors, (227), 4 states have internal predecessors, (227), 0 states have call successors, (0), 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 227 [2024-11-08 17:42:46,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:42:47,406 INFO L225 Difference]: With dead ends: 526603 [2024-11-08 17:42:47,406 INFO L226 Difference]: Without dead ends: 362853 [2024-11-08 17:42:47,530 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:42:47,531 INFO L432 NwaCegarLoop]: 2672 mSDtfsCounter, 4063 mSDsluCounter, 3864 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4063 SdHoareTripleChecker+Valid, 6536 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 17:42:47,531 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4063 Valid, 6536 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 17:42:47,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362853 states. [2024-11-08 17:42:54,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362853 to 263990. [2024-11-08 17:42:54,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263990 states, 263988 states have (on average 1.6201797051381124) internal successors, (427708), 263989 states have internal predecessors, (427708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:42:56,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263990 states to 263990 states and 427708 transitions. [2024-11-08 17:42:56,305 INFO L78 Accepts]: Start accepts. Automaton has 263990 states and 427708 transitions. Word has length 227 [2024-11-08 17:42:56,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:42:56,305 INFO L471 AbstractCegarLoop]: Abstraction has 263990 states and 427708 transitions. [2024-11-08 17:42:56,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.75) internal successors, (227), 4 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:42:56,306 INFO L276 IsEmpty]: Start isEmpty. Operand 263990 states and 427708 transitions. [2024-11-08 17:42:56,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2024-11-08 17:42:56,500 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:42:56,500 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:42:56,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 17:42:56,500 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:42:56,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:42:56,501 INFO L85 PathProgramCache]: Analyzing trace with hash -108589616, now seen corresponding path program 1 times [2024-11-08 17:42:56,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:42:56,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604295053] [2024-11-08 17:42:56,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:42:56,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:42:56,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:42:56,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:42:56,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:42:56,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604295053] [2024-11-08 17:42:56,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604295053] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:42:56,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:42:56,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 17:42:56,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145490726] [2024-11-08 17:42:56,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:42:56,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:42:56,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:42:56,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:42:56,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:42:56,758 INFO L87 Difference]: Start difference. First operand 263990 states and 427708 transitions. Second operand has 4 states, 4 states have (on average 57.0) internal successors, (228), 4 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:43:01,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:43:01,645 INFO L93 Difference]: Finished difference Result 835862 states and 1357536 transitions. [2024-11-08 17:43:01,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:43:01,646 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 57.0) internal successors, (228), 4 states have internal predecessors, (228), 0 states have call successors, (0), 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 228 [2024-11-08 17:43:01,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:43:02,654 INFO L225 Difference]: With dead ends: 835862 [2024-11-08 17:43:02,655 INFO L226 Difference]: Without dead ends: 572146 [2024-11-08 17:43:02,869 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:43:02,872 INFO L432 NwaCegarLoop]: 1753 mSDtfsCounter, 4012 mSDsluCounter, 3792 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4012 SdHoareTripleChecker+Valid, 5545 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 17:43:02,872 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4012 Valid, 5545 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 17:43:03,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572146 states. [2024-11-08 17:43:15,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572146 to 417856. [2024-11-08 17:43:15,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417856 states, 417854 states have (on average 1.6147841111967338) internal successors, (674744), 417855 states have internal predecessors, (674744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)