./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cffbc31e-725b-428f-91d2-2404c68ebcf2/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cffbc31e-725b-428f-91d2-2404c68ebcf2/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cffbc31e-725b-428f-91d2-2404c68ebcf2/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cffbc31e-725b-428f-91d2-2404c68ebcf2/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cffbc31e-725b-428f-91d2-2404c68ebcf2/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cffbc31e-725b-428f-91d2-2404c68ebcf2/bin/uautomizer-verify-BQ2R08f2Ya --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 f1e7a931f8678a52ab26f5a1b74bb59e33ef4ed9c03430a4d28342e1a824b13d --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 06:48:03,573 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 06:48:03,641 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cffbc31e-725b-428f-91d2-2404c68ebcf2/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-29 06:48:03,646 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 06:48:03,646 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 06:48:03,671 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 06:48:03,672 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 06:48:03,672 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 06:48:03,673 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 06:48:03,674 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 06:48:03,674 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 06:48:03,675 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 06:48:03,675 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 06:48:03,676 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 06:48:03,677 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 06:48:03,677 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 06:48:03,678 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 06:48:03,678 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 06:48:03,678 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 06:48:03,679 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 06:48:03,679 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 06:48:03,680 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 06:48:03,680 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 06:48:03,681 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 06:48:03,681 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 06:48:03,682 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 06:48:03,682 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 06:48:03,683 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 06:48:03,683 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 06:48:03,684 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 06:48:03,684 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 06:48:03,684 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:48:03,693 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 06:48:03,694 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 06:48:03,694 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 06:48:03,695 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 06:48:03,695 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 06:48:03,695 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 06:48:03,696 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 06:48:03,696 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 06:48:03,696 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 06:48:03,697 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 06:48:03,697 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_cffbc31e-725b-428f-91d2-2404c68ebcf2/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cffbc31e-725b-428f-91d2-2404c68ebcf2/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f1e7a931f8678a52ab26f5a1b74bb59e33ef4ed9c03430a4d28342e1a824b13d [2023-11-29 06:48:03,920 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 06:48:03,943 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 06:48:03,946 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 06:48:03,947 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 06:48:03,948 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 06:48:03,949 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cffbc31e-725b-428f-91d2-2404c68ebcf2/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c [2023-11-29 06:48:06,812 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 06:48:07,179 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 06:48:07,180 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cffbc31e-725b-428f-91d2-2404c68ebcf2/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c [2023-11-29 06:48:07,208 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cffbc31e-725b-428f-91d2-2404c68ebcf2/bin/uautomizer-verify-BQ2R08f2Ya/data/e4e6601bc/636f9c9781ed4c02b80a1c7f6bdef5d9/FLAG69a6b3377 [2023-11-29 06:48:07,224 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cffbc31e-725b-428f-91d2-2404c68ebcf2/bin/uautomizer-verify-BQ2R08f2Ya/data/e4e6601bc/636f9c9781ed4c02b80a1c7f6bdef5d9 [2023-11-29 06:48:07,226 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 06:48:07,228 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 06:48:07,229 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 06:48:07,230 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 06:48:07,235 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 06:48:07,236 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:48:07" (1/1) ... [2023-11-29 06:48:07,237 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11c1ab8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:48:07, skipping insertion in model container [2023-11-29 06:48:07,237 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:48:07" (1/1) ... [2023-11-29 06:48:07,339 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 06:48:07,542 WARN L240 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_cffbc31e-725b-428f-91d2-2404c68ebcf2/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c[1870,1883] [2023-11-29 06:48:08,097 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:48:08,123 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 06:48:08,134 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"/tmp/aaaa/ctm.ok2.i","-S") [42] [2023-11-29 06:48:08,140 WARN L240 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_cffbc31e-725b-428f-91d2-2404c68ebcf2/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c[1870,1883] [2023-11-29 06:48:08,387 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:48:08,435 INFO L206 MainTranslator]: Completed translation [2023-11-29 06:48:08,435 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:48:08 WrapperNode [2023-11-29 06:48:08,436 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 06:48:08,437 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 06:48:08,437 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 06:48:08,437 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 06:48:08,446 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:48:08" (1/1) ... [2023-11-29 06:48:08,521 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:48:08" (1/1) ... [2023-11-29 06:48:08,754 INFO L138 Inliner]: procedures = 99, calls = 2725, calls flagged for inlining = 34, calls inlined = 34, statements flattened = 8386 [2023-11-29 06:48:08,754 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 06:48:08,755 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 06:48:08,755 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 06:48:08,755 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 06:48:08,768 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:48:08" (1/1) ... [2023-11-29 06:48:08,768 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:48:08" (1/1) ... [2023-11-29 06:48:08,810 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:48:08" (1/1) ... [2023-11-29 06:48:08,894 INFO L175 MemorySlicer]: Split 2332 memory accesses to 49 slices as follows [2, 80, 86, 37, 37, 49, 46, 49, 46, 49, 46, 49, 46, 49, 46, 49, 46, 49, 46, 49, 46, 49, 46, 49, 46, 49, 46, 49, 46, 49, 46, 49, 46, 49, 46, 49, 46, 49, 46, 49, 46, 49, 46, 49, 46, 49, 46, 49, 46]. 4 percent of accesses are in the largest equivalence class. The 338 initializations are split as follows [2, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7]. The 402 writes are split as follows [0, 7, 7, 7, 7, 11, 6, 11, 6, 11, 6, 11, 6, 11, 6, 11, 6, 11, 6, 11, 6, 11, 6, 11, 6, 11, 6, 11, 6, 11, 6, 11, 6, 11, 6, 11, 6, 11, 6, 11, 6, 11, 6, 11, 6, 11, 6, 11, 6]. [2023-11-29 06:48:08,894 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:48:08" (1/1) ... [2023-11-29 06:48:08,895 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:48:08" (1/1) ... [2023-11-29 06:48:09,061 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:48:08" (1/1) ... [2023-11-29 06:48:09,089 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:48:08" (1/1) ... [2023-11-29 06:48:09,112 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:48:08" (1/1) ... [2023-11-29 06:48:09,130 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:48:08" (1/1) ... [2023-11-29 06:48:09,207 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 06:48:09,208 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 06:48:09,208 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 06:48:09,209 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 06:48:09,209 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:48:08" (1/1) ... [2023-11-29 06:48:09,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:48:09,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cffbc31e-725b-428f-91d2-2404c68ebcf2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:48:09,241 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cffbc31e-725b-428f-91d2-2404c68ebcf2/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 06:48:09,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cffbc31e-725b-428f-91d2-2404c68ebcf2/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 06:48:09,282 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2023-11-29 06:48:09,282 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2023-11-29 06:48:09,282 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2023-11-29 06:48:09,282 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2023-11-29 06:48:09,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-29 06:48:09,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-29 06:48:09,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-29 06:48:09,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-29 06:48:09,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-29 06:48:09,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-29 06:48:09,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-29 06:48:09,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-29 06:48:09,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-11-29 06:48:09,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-11-29 06:48:09,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-11-29 06:48:09,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2023-11-29 06:48:09,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2023-11-29 06:48:09,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2023-11-29 06:48:09,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2023-11-29 06:48:09,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2023-11-29 06:48:09,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2023-11-29 06:48:09,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2023-11-29 06:48:09,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2023-11-29 06:48:09,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#19 [2023-11-29 06:48:09,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#20 [2023-11-29 06:48:09,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#21 [2023-11-29 06:48:09,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#22 [2023-11-29 06:48:09,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#23 [2023-11-29 06:48:09,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#24 [2023-11-29 06:48:09,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#25 [2023-11-29 06:48:09,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#26 [2023-11-29 06:48:09,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#27 [2023-11-29 06:48:09,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#28 [2023-11-29 06:48:09,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#29 [2023-11-29 06:48:09,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#30 [2023-11-29 06:48:09,287 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#31 [2023-11-29 06:48:09,287 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#32 [2023-11-29 06:48:09,287 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#33 [2023-11-29 06:48:09,287 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#34 [2023-11-29 06:48:09,287 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#35 [2023-11-29 06:48:09,287 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#36 [2023-11-29 06:48:09,287 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#37 [2023-11-29 06:48:09,287 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#38 [2023-11-29 06:48:09,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#39 [2023-11-29 06:48:09,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#40 [2023-11-29 06:48:09,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#41 [2023-11-29 06:48:09,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#42 [2023-11-29 06:48:09,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#43 [2023-11-29 06:48:09,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#44 [2023-11-29 06:48:09,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#45 [2023-11-29 06:48:09,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#46 [2023-11-29 06:48:09,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#47 [2023-11-29 06:48:09,289 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#48 [2023-11-29 06:48:09,289 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2023-11-29 06:48:09,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2023-11-29 06:48:09,289 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2023-11-29 06:48:09,289 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2023-11-29 06:48:09,289 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2023-11-29 06:48:09,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2023-11-29 06:48:09,289 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2023-11-29 06:48:09,290 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2023-11-29 06:48:09,290 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2023-11-29 06:48:09,290 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2023-11-29 06:48:09,290 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2023-11-29 06:48:09,290 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2023-11-29 06:48:09,290 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2023-11-29 06:48:09,290 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2023-11-29 06:48:09,290 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2023-11-29 06:48:09,291 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2023-11-29 06:48:09,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-29 06:48:09,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-29 06:48:09,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-29 06:48:09,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-29 06:48:09,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-29 06:48:09,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-29 06:48:09,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-29 06:48:09,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-29 06:48:09,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-11-29 06:48:09,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-11-29 06:48:09,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-11-29 06:48:09,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2023-11-29 06:48:09,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2023-11-29 06:48:09,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2023-11-29 06:48:09,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2023-11-29 06:48:09,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2023-11-29 06:48:09,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2023-11-29 06:48:09,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2023-11-29 06:48:09,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2023-11-29 06:48:09,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#19 [2023-11-29 06:48:09,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#20 [2023-11-29 06:48:09,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#21 [2023-11-29 06:48:09,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#22 [2023-11-29 06:48:09,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#23 [2023-11-29 06:48:09,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#24 [2023-11-29 06:48:09,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#25 [2023-11-29 06:48:09,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#26 [2023-11-29 06:48:09,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#27 [2023-11-29 06:48:09,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#28 [2023-11-29 06:48:09,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#29 [2023-11-29 06:48:09,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#30 [2023-11-29 06:48:09,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#31 [2023-11-29 06:48:09,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#32 [2023-11-29 06:48:09,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#33 [2023-11-29 06:48:09,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#34 [2023-11-29 06:48:09,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#35 [2023-11-29 06:48:09,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#36 [2023-11-29 06:48:09,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#37 [2023-11-29 06:48:09,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#38 [2023-11-29 06:48:09,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#39 [2023-11-29 06:48:09,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#40 [2023-11-29 06:48:09,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#41 [2023-11-29 06:48:09,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#42 [2023-11-29 06:48:09,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#43 [2023-11-29 06:48:09,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#44 [2023-11-29 06:48:09,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#45 [2023-11-29 06:48:09,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#46 [2023-11-29 06:48:09,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#47 [2023-11-29 06:48:09,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#48 [2023-11-29 06:48:09,297 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-11-29 06:48:09,297 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-11-29 06:48:09,297 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2023-11-29 06:48:09,297 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2023-11-29 06:48:09,297 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2023-11-29 06:48:09,297 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2023-11-29 06:48:09,297 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2023-11-29 06:48:09,297 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2023-11-29 06:48:09,298 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2023-11-29 06:48:09,298 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2023-11-29 06:48:09,298 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2023-11-29 06:48:09,298 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2023-11-29 06:48:09,298 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2023-11-29 06:48:09,298 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2023-11-29 06:48:09,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 06:48:09,298 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2023-11-29 06:48:09,298 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2023-11-29 06:48:09,299 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2023-11-29 06:48:09,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2023-11-29 06:48:09,299 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2023-11-29 06:48:09,299 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2023-11-29 06:48:09,299 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2023-11-29 06:48:09,299 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2023-11-29 06:48:09,299 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2023-11-29 06:48:09,299 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2023-11-29 06:48:09,300 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2023-11-29 06:48:09,300 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2023-11-29 06:48:09,300 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2023-11-29 06:48:09,300 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2023-11-29 06:48:09,300 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2023-11-29 06:48:09,300 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2023-11-29 06:48:09,300 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2023-11-29 06:48:09,300 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2023-11-29 06:48:09,300 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2023-11-29 06:48:09,301 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2023-11-29 06:48:09,301 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2023-11-29 06:48:09,301 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2023-11-29 06:48:09,301 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2023-11-29 06:48:09,301 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2023-11-29 06:48:09,301 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2023-11-29 06:48:09,301 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2023-11-29 06:48:09,301 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2023-11-29 06:48:09,302 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2023-11-29 06:48:09,302 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2023-11-29 06:48:09,302 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2023-11-29 06:48:09,302 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2023-11-29 06:48:09,302 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2023-11-29 06:48:09,302 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2023-11-29 06:48:09,302 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2023-11-29 06:48:09,302 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2023-11-29 06:48:09,302 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2023-11-29 06:48:09,303 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2023-11-29 06:48:09,303 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2023-11-29 06:48:09,303 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2023-11-29 06:48:09,303 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2023-11-29 06:48:09,303 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2023-11-29 06:48:09,303 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2023-11-29 06:48:09,303 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2023-11-29 06:48:09,303 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2023-11-29 06:48:09,303 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2023-11-29 06:48:09,303 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2023-11-29 06:48:09,304 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2023-11-29 06:48:09,304 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2023-11-29 06:48:09,304 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2023-11-29 06:48:09,304 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2023-11-29 06:48:09,304 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2023-11-29 06:48:09,304 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2023-11-29 06:48:09,304 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_nxtcolorsensor_mode [2023-11-29 06:48:09,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_nxtcolorsensor_mode [2023-11-29 06:48:09,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 06:48:09,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 06:48:09,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-29 06:48:09,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-29 06:48:09,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-29 06:48:09,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-29 06:48:09,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-29 06:48:09,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-29 06:48:09,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-11-29 06:48:09,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-11-29 06:48:09,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-11-29 06:48:09,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-11-29 06:48:09,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-11-29 06:48:09,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-11-29 06:48:09,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2023-11-29 06:48:09,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2023-11-29 06:48:09,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2023-11-29 06:48:09,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2023-11-29 06:48:09,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2023-11-29 06:48:09,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2023-11-29 06:48:09,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#20 [2023-11-29 06:48:09,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#21 [2023-11-29 06:48:09,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#22 [2023-11-29 06:48:09,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#23 [2023-11-29 06:48:09,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#24 [2023-11-29 06:48:09,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#25 [2023-11-29 06:48:09,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#26 [2023-11-29 06:48:09,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#27 [2023-11-29 06:48:09,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#28 [2023-11-29 06:48:09,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#29 [2023-11-29 06:48:09,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#30 [2023-11-29 06:48:09,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#31 [2023-11-29 06:48:09,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#32 [2023-11-29 06:48:09,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#33 [2023-11-29 06:48:09,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#34 [2023-11-29 06:48:09,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#35 [2023-11-29 06:48:09,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#36 [2023-11-29 06:48:09,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#37 [2023-11-29 06:48:09,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#38 [2023-11-29 06:48:09,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#39 [2023-11-29 06:48:09,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#40 [2023-11-29 06:48:09,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#41 [2023-11-29 06:48:09,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#42 [2023-11-29 06:48:09,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#43 [2023-11-29 06:48:09,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#44 [2023-11-29 06:48:09,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#45 [2023-11-29 06:48:09,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#46 [2023-11-29 06:48:09,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#47 [2023-11-29 06:48:09,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#48 [2023-11-29 06:48:09,309 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2023-11-29 06:48:09,309 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2023-11-29 06:48:09,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 06:48:09,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 06:48:09,888 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 06:48:09,891 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 06:48:19,374 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 06:48:19,632 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 06:48:19,632 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-29 06:48:19,634 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:48:19 BoogieIcfgContainer [2023-11-29 06:48:19,634 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 06:48:19,637 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 06:48:19,637 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 06:48:19,640 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 06:48:19,641 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 06:48:07" (1/3) ... [2023-11-29 06:48:19,641 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17c58204 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:48:19, skipping insertion in model container [2023-11-29 06:48:19,641 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:48:08" (2/3) ... [2023-11-29 06:48:19,642 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17c58204 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:48:19, skipping insertion in model container [2023-11-29 06:48:19,642 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:48:19" (3/3) ... [2023-11-29 06:48:19,643 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_ctm.2-2.c [2023-11-29 06:48:19,663 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 06:48:19,663 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 06:48:19,759 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 06:48:19,765 INFO L357 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, mHoare=true, 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;@a8cf6d2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 06:48:19,765 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 06:48:19,779 INFO L276 IsEmpty]: Start isEmpty. Operand has 2398 states, 2047 states have (on average 1.4948705422569615) internal successors, (3060), 2071 states have internal predecessors, (3060), 304 states have call successors, (304), 45 states have call predecessors, (304), 45 states have return successors, (304), 294 states have call predecessors, (304), 304 states have call successors, (304) [2023-11-29 06:48:19,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-11-29 06:48:19,802 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:48:19,802 INFO L195 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] [2023-11-29 06:48:19,803 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:48:19,807 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:48:19,807 INFO L85 PathProgramCache]: Analyzing trace with hash -2114174958, now seen corresponding path program 1 times [2023-11-29 06:48:19,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:48:19,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454365979] [2023-11-29 06:48:19,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:48:19,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:48:20,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:48:21,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-29 06:48:21,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:48:21,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 06:48:21,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:48:21,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:48:21,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:48:21,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454365979] [2023-11-29 06:48:21,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454365979] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:48:21,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:48:21,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 06:48:21,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025226910] [2023-11-29 06:48:21,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:48:21,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:48:21,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:48:21,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:48:21,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:48:21,324 INFO L87 Difference]: Start difference. First operand has 2398 states, 2047 states have (on average 1.4948705422569615) internal successors, (3060), 2071 states have internal predecessors, (3060), 304 states have call successors, (304), 45 states have call predecessors, (304), 45 states have return successors, (304), 294 states have call predecessors, (304), 304 states have call successors, (304) Second operand has 4 states, 4 states have (on average 34.25) internal successors, (137), 2 states have internal predecessors, (137), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 06:48:25,878 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:48:29,909 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:48:33,939 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:48:39,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:48:39,989 INFO L93 Difference]: Finished difference Result 5491 states and 9167 transitions. [2023-11-29 06:48:39,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:48:39,991 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 2 states have internal predecessors, (137), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 143 [2023-11-29 06:48:39,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:48:40,067 INFO L225 Difference]: With dead ends: 5491 [2023-11-29 06:48:40,067 INFO L226 Difference]: Without dead ends: 3085 [2023-11-29 06:48:40,104 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:48:40,108 INFO L413 NwaCegarLoop]: 2363 mSDtfsCounter, 1766 mSDsluCounter, 1761 mSDsCounter, 0 mSdLazyCounter, 2262 mSolverCounterSat, 1153 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1817 SdHoareTripleChecker+Valid, 4124 SdHoareTripleChecker+Invalid, 3418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1153 IncrementalHoareTripleChecker+Valid, 2262 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:48:40,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1817 Valid, 4124 Invalid, 3418 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1153 Valid, 2262 Invalid, 3 Unknown, 0 Unchecked, 18.2s Time] [2023-11-29 06:48:40,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3085 states. [2023-11-29 06:48:40,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3085 to 2388. [2023-11-29 06:48:40,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2388 states, 2038 states have (on average 1.1575073601570167) internal successors, (2359), 2062 states have internal predecessors, (2359), 304 states have call successors, (304), 45 states have call predecessors, (304), 45 states have return successors, (303), 293 states have call predecessors, (303), 303 states have call successors, (303) [2023-11-29 06:48:40,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2388 states to 2388 states and 2966 transitions. [2023-11-29 06:48:40,378 INFO L78 Accepts]: Start accepts. Automaton has 2388 states and 2966 transitions. Word has length 143 [2023-11-29 06:48:40,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:48:40,379 INFO L495 AbstractCegarLoop]: Abstraction has 2388 states and 2966 transitions. [2023-11-29 06:48:40,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 2 states have internal predecessors, (137), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 06:48:40,379 INFO L276 IsEmpty]: Start isEmpty. Operand 2388 states and 2966 transitions. [2023-11-29 06:48:40,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2023-11-29 06:48:40,391 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:48:40,392 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:48:40,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 06:48:40,392 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:48:40,393 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:48:40,393 INFO L85 PathProgramCache]: Analyzing trace with hash 463913856, now seen corresponding path program 1 times [2023-11-29 06:48:40,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:48:40,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517745150] [2023-11-29 06:48:40,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:48:40,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:48:41,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:48:41,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-29 06:48:41,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:48:41,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 06:48:41,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:48:41,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-29 06:48:41,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:48:41,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-29 06:48:41,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:48:41,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-29 06:48:41,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:48:41,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-29 06:48:41,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:48:41,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-29 06:48:41,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:48:41,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 06:48:41,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:48:41,940 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 06:48:41,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:48:41,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517745150] [2023-11-29 06:48:41,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517745150] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:48:41,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:48:41,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 06:48:41,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967216699] [2023-11-29 06:48:41,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:48:41,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 06:48:41,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:48:41,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 06:48:41,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:48:41,947 INFO L87 Difference]: Start difference. First operand 2388 states and 2966 transitions. Second operand has 9 states, 9 states have (on average 19.88888888888889) internal successors, (179), 6 states have internal predecessors, (179), 4 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 06:48:47,284 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:48:51,317 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:48:55,342 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:48:59,367 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:49:03,385 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:49:07,404 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:49:24,663 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:49:28,681 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:49:32,696 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:49:36,715 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:49:40,738 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:49:44,758 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:49:44,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:49:44,874 INFO L93 Difference]: Finished difference Result 6279 states and 8504 transitions. [2023-11-29 06:49:44,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 06:49:44,874 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 19.88888888888889) internal successors, (179), 6 states have internal predecessors, (179), 4 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 197 [2023-11-29 06:49:44,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:49:44,905 INFO L225 Difference]: With dead ends: 6279 [2023-11-29 06:49:44,905 INFO L226 Difference]: Without dead ends: 3893 [2023-11-29 06:49:44,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-11-29 06:49:44,926 INFO L413 NwaCegarLoop]: 2222 mSDtfsCounter, 8266 mSDsluCounter, 6326 mSDsCounter, 0 mSdLazyCounter, 7858 mSolverCounterSat, 2637 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 60.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8407 SdHoareTripleChecker+Valid, 8548 SdHoareTripleChecker+Invalid, 10507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2637 IncrementalHoareTripleChecker+Valid, 7858 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 62.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:49:44,927 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8407 Valid, 8548 Invalid, 10507 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2637 Valid, 7858 Invalid, 12 Unknown, 0 Unchecked, 62.0s Time] [2023-11-29 06:49:44,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3893 states. [2023-11-29 06:49:45,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3893 to 2883. [2023-11-29 06:49:45,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2883 states, 2385 states have (on average 1.1928721174004193) internal successors, (2845), 2415 states have internal predecessors, (2845), 419 states have call successors, (419), 78 states have call predecessors, (419), 78 states have return successors, (418), 404 states have call predecessors, (418), 418 states have call successors, (418) [2023-11-29 06:49:45,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2883 states to 2883 states and 3682 transitions. [2023-11-29 06:49:45,244 INFO L78 Accepts]: Start accepts. Automaton has 2883 states and 3682 transitions. Word has length 197 [2023-11-29 06:49:45,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:49:45,245 INFO L495 AbstractCegarLoop]: Abstraction has 2883 states and 3682 transitions. [2023-11-29 06:49:45,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 19.88888888888889) internal successors, (179), 6 states have internal predecessors, (179), 4 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 06:49:45,246 INFO L276 IsEmpty]: Start isEmpty. Operand 2883 states and 3682 transitions. [2023-11-29 06:49:45,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2023-11-29 06:49:45,253 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:49:45,253 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:49:45,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 06:49:45,253 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:49:45,254 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:49:45,254 INFO L85 PathProgramCache]: Analyzing trace with hash 1407625349, now seen corresponding path program 1 times [2023-11-29 06:49:45,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:49:45,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437006389] [2023-11-29 06:49:45,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:49:45,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:49:45,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:49:46,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-29 06:49:46,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:49:46,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 06:49:46,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:49:46,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-29 06:49:46,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:49:46,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-29 06:49:46,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:49:46,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-29 06:49:46,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:49:46,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-29 06:49:46,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:49:46,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-29 06:49:46,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:49:46,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 06:49:46,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:49:46,635 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 06:49:46,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:49:46,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437006389] [2023-11-29 06:49:46,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437006389] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:49:46,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:49:46,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 06:49:46,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853917350] [2023-11-29 06:49:46,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:49:46,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 06:49:46,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:49:46,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 06:49:46,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:49:46,639 INFO L87 Difference]: Start difference. First operand 2883 states and 3682 transitions. Second operand has 9 states, 9 states have (on average 19.88888888888889) internal successors, (179), 6 states have internal predecessors, (179), 4 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 06:49:51,805 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:49:55,822 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:49:59,843 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:50:03,963 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:50:07,980 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:50:12,000 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:50:27,313 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:50:31,337 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:50:35,373 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:50:39,396 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:50:43,410 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:50:47,444 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:50:47,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:50:47,558 INFO L93 Difference]: Finished difference Result 7368 states and 10160 transitions. [2023-11-29 06:50:47,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 06:50:47,559 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 19.88888888888889) internal successors, (179), 6 states have internal predecessors, (179), 4 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 198 [2023-11-29 06:50:47,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:50:47,581 INFO L225 Difference]: With dead ends: 7368 [2023-11-29 06:50:47,581 INFO L226 Difference]: Without dead ends: 4487 [2023-11-29 06:50:47,597 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-11-29 06:50:47,598 INFO L413 NwaCegarLoop]: 2232 mSDtfsCounter, 10466 mSDsluCounter, 5244 mSDsCounter, 0 mSdLazyCounter, 6071 mSolverCounterSat, 3951 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 58.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10617 SdHoareTripleChecker+Valid, 7476 SdHoareTripleChecker+Invalid, 10034 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3951 IncrementalHoareTripleChecker+Valid, 6071 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 60.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:50:47,598 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10617 Valid, 7476 Invalid, 10034 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3951 Valid, 6071 Invalid, 12 Unknown, 0 Unchecked, 60.0s Time] [2023-11-29 06:50:47,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4487 states. [2023-11-29 06:50:47,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4487 to 3238. [2023-11-29 06:50:47,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3238 states, 2642 states have (on average 1.2138531415594247) internal successors, (3207), 2681 states have internal predecessors, (3207), 496 states have call successors, (496), 99 states have call predecessors, (496), 99 states have return successors, (495), 477 states have call predecessors, (495), 495 states have call successors, (495) [2023-11-29 06:50:47,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3238 states to 3238 states and 4198 transitions. [2023-11-29 06:50:47,859 INFO L78 Accepts]: Start accepts. Automaton has 3238 states and 4198 transitions. Word has length 198 [2023-11-29 06:50:47,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:50:47,859 INFO L495 AbstractCegarLoop]: Abstraction has 3238 states and 4198 transitions. [2023-11-29 06:50:47,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 19.88888888888889) internal successors, (179), 6 states have internal predecessors, (179), 4 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 06:50:47,860 INFO L276 IsEmpty]: Start isEmpty. Operand 3238 states and 4198 transitions. [2023-11-29 06:50:47,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2023-11-29 06:50:47,864 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:50:47,864 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:50:47,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 06:50:47,865 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:50:47,865 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:50:47,865 INFO L85 PathProgramCache]: Analyzing trace with hash 1300956799, now seen corresponding path program 1 times [2023-11-29 06:50:47,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:50:47,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325012247] [2023-11-29 06:50:47,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:50:47,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:50:48,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:50:50,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-29 06:50:50,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:50:50,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 06:50:50,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:50:50,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-29 06:50:50,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:50:50,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-29 06:50:50,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:50:50,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-29 06:50:50,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:50:50,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-29 06:50:50,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:50:50,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-29 06:50:50,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:50:50,657 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-29 06:50:50,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:50:50,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325012247] [2023-11-29 06:50:50,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325012247] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:50:50,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:50:50,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-29 06:50:50,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021058618] [2023-11-29 06:50:50,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:50:50,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 06:50:50,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:50:50,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 06:50:50,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:50:50,660 INFO L87 Difference]: Start difference. First operand 3238 states and 4198 transitions. Second operand has 12 states, 11 states have (on average 15.636363636363637) internal successors, (172), 9 states have internal predecessors, (172), 4 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 06:50:56,807 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:51:00,837 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:51:04,855 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:51:08,884 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:51:12,901 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:51:16,925 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:51:20,949 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:51:39,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:51:39,798 INFO L93 Difference]: Finished difference Result 9449 states and 13330 transitions. [2023-11-29 06:51:39,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-29 06:51:39,799 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 15.636363636363637) internal successors, (172), 9 states have internal predecessors, (172), 4 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) Word has length 194 [2023-11-29 06:51:39,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:51:39,840 INFO L225 Difference]: With dead ends: 9449 [2023-11-29 06:51:39,840 INFO L226 Difference]: Without dead ends: 6213 [2023-11-29 06:51:39,857 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=166, Invalid=386, Unknown=0, NotChecked=0, Total=552 [2023-11-29 06:51:39,858 INFO L413 NwaCegarLoop]: 2298 mSDtfsCounter, 10016 mSDsluCounter, 10337 mSDsCounter, 0 mSdLazyCounter, 10731 mSolverCounterSat, 3842 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10155 SdHoareTripleChecker+Valid, 12635 SdHoareTripleChecker+Invalid, 14580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3842 IncrementalHoareTripleChecker+Valid, 10731 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 47.7s IncrementalHoareTripleChecker+Time [2023-11-29 06:51:39,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10155 Valid, 12635 Invalid, 14580 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3842 Valid, 10731 Invalid, 7 Unknown, 0 Unchecked, 47.7s Time] [2023-11-29 06:51:39,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6213 states. [2023-11-29 06:51:40,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6213 to 4166. [2023-11-29 06:51:40,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4166 states, 3298 states have (on average 1.2528805336567617) internal successors, (4132), 3354 states have internal predecessors, (4132), 718 states have call successors, (718), 148 states have call predecessors, (718), 149 states have return successors, (718), 693 states have call predecessors, (718), 717 states have call successors, (718) [2023-11-29 06:51:40,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4166 states to 4166 states and 5568 transitions. [2023-11-29 06:51:40,310 INFO L78 Accepts]: Start accepts. Automaton has 4166 states and 5568 transitions. Word has length 194 [2023-11-29 06:51:40,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:51:40,311 INFO L495 AbstractCegarLoop]: Abstraction has 4166 states and 5568 transitions. [2023-11-29 06:51:40,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 15.636363636363637) internal successors, (172), 9 states have internal predecessors, (172), 4 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 06:51:40,311 INFO L276 IsEmpty]: Start isEmpty. Operand 4166 states and 5568 transitions. [2023-11-29 06:51:40,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2023-11-29 06:51:40,317 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:51:40,317 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:51:40,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 06:51:40,317 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:51:40,318 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:51:40,318 INFO L85 PathProgramCache]: Analyzing trace with hash -645240932, now seen corresponding path program 1 times [2023-11-29 06:51:40,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:51:40,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83770621] [2023-11-29 06:51:40,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:40,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:51:40,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:51:41,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-29 06:51:41,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:51:41,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 06:51:41,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:51:41,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 06:51:41,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:51:41,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 06:51:41,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:51:41,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-29 06:51:41,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:51:41,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 06:51:41,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:51:41,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-29 06:51:41,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:51:41,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-29 06:51:41,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:51:41,735 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 06:51:41,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:51:41,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83770621] [2023-11-29 06:51:41,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83770621] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:51:41,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [406937435] [2023-11-29 06:51:41,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:41,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:51:41,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cffbc31e-725b-428f-91d2-2404c68ebcf2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:51:41,741 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cffbc31e-725b-428f-91d2-2404c68ebcf2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:51:41,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cffbc31e-725b-428f-91d2-2404c68ebcf2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 06:51:43,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:51:43,156 INFO L262 TraceCheckSpWp]: Trace formula consists of 2805 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:51:43,172 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:51:43,326 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-29 06:51:43,327 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:51:43,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [406937435] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:51:43,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:51:43,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 11 [2023-11-29 06:51:43,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821886244] [2023-11-29 06:51:43,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:51:43,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:51:43,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:51:43,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:51:43,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:51:43,330 INFO L87 Difference]: Start difference. First operand 4166 states and 5568 transitions. Second operand has 5 states, 5 states have (on average 35.0) internal successors, (175), 5 states have internal predecessors, (175), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 06:51:48,096 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:51:52,123 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:51:56,152 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:52:00,175 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:52:06,650 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:52:10,685 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:52:14,707 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:52:18,732 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:52:18,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:52:18,740 INFO L93 Difference]: Finished difference Result 8563 states and 11420 transitions. [2023-11-29 06:52:18,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:52:18,759 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.0) internal successors, (175), 5 states have internal predecessors, (175), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) Word has length 197 [2023-11-29 06:52:18,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:52:18,783 INFO L225 Difference]: With dead ends: 8563 [2023-11-29 06:52:18,783 INFO L226 Difference]: Without dead ends: 4288 [2023-11-29 06:52:18,797 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 208 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:52:18,798 INFO L413 NwaCegarLoop]: 3419 mSDtfsCounter, 1427 mSDsluCounter, 5987 mSDsCounter, 0 mSdLazyCounter, 1662 mSolverCounterSat, 4 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1428 SdHoareTripleChecker+Valid, 9406 SdHoareTripleChecker+Invalid, 1674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1662 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:52:18,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1428 Valid, 9406 Invalid, 1674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1662 Invalid, 8 Unknown, 0 Unchecked, 35.0s Time] [2023-11-29 06:52:18,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4288 states. [2023-11-29 06:52:19,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4288 to 4153. [2023-11-29 06:52:19,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4153 states, 3290 states have (on average 1.2516717325227964) internal successors, (4118), 3346 states have internal predecessors, (4118), 713 states have call successors, (713), 148 states have call predecessors, (713), 149 states have return successors, (713), 688 states have call predecessors, (713), 712 states have call successors, (713) [2023-11-29 06:52:19,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4153 states to 4153 states and 5544 transitions. [2023-11-29 06:52:19,286 INFO L78 Accepts]: Start accepts. Automaton has 4153 states and 5544 transitions. Word has length 197 [2023-11-29 06:52:19,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:52:19,286 INFO L495 AbstractCegarLoop]: Abstraction has 4153 states and 5544 transitions. [2023-11-29 06:52:19,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.0) internal successors, (175), 5 states have internal predecessors, (175), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 06:52:19,286 INFO L276 IsEmpty]: Start isEmpty. Operand 4153 states and 5544 transitions. [2023-11-29 06:52:19,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2023-11-29 06:52:19,292 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:52:19,292 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:52:19,304 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cffbc31e-725b-428f-91d2-2404c68ebcf2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 06:52:19,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cffbc31e-725b-428f-91d2-2404c68ebcf2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:52:19,493 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:52:19,494 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:52:19,494 INFO L85 PathProgramCache]: Analyzing trace with hash 1547381555, now seen corresponding path program 1 times [2023-11-29 06:52:19,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:52:19,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826832511] [2023-11-29 06:52:19,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:52:19,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:52:19,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:20,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-29 06:52:20,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:20,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 06:52:20,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:20,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 06:52:20,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:20,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-29 06:52:20,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:20,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-29 06:52:20,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:20,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-29 06:52:20,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:20,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-29 06:52:20,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:20,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-29 06:52:20,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:20,752 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 06:52:20,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:52:20,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826832511] [2023-11-29 06:52:20,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826832511] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:52:20,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2025127023] [2023-11-29 06:52:20,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:52:20,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:52:20,753 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cffbc31e-725b-428f-91d2-2404c68ebcf2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:52:20,754 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cffbc31e-725b-428f-91d2-2404c68ebcf2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:52:20,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cffbc31e-725b-428f-91d2-2404c68ebcf2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 06:52:22,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:22,079 INFO L262 TraceCheckSpWp]: Trace formula consists of 2807 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 06:52:22,087 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:52:22,247 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 06:52:22,247 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:52:22,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2025127023] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:52:22,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:52:22,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 11 [2023-11-29 06:52:22,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745321927] [2023-11-29 06:52:22,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:52:22,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:52:22,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:52:22,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:52:22,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:52:22,250 INFO L87 Difference]: Start difference. First operand 4153 states and 5544 transitions. Second operand has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 06:52:27,025 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:52:31,060 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:52:35,083 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:52:39,104 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:52:45,064 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:52:49,089 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:52:53,107 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:52:57,127 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:52:57,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:52:57,181 INFO L93 Difference]: Finished difference Result 8495 states and 11316 transitions. [2023-11-29 06:52:57,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:52:57,182 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) Word has length 198 [2023-11-29 06:52:57,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:52:57,203 INFO L225 Difference]: With dead ends: 8495 [2023-11-29 06:52:57,203 INFO L226 Difference]: Without dead ends: 4280 [2023-11-29 06:52:57,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 211 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:52:57,236 INFO L413 NwaCegarLoop]: 3414 mSDtfsCounter, 1149 mSDsluCounter, 6137 mSDsCounter, 0 mSdLazyCounter, 1243 mSolverCounterSat, 4 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1150 SdHoareTripleChecker+Valid, 9551 SdHoareTripleChecker+Invalid, 1255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1243 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.5s IncrementalHoareTripleChecker+Time [2023-11-29 06:52:57,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1150 Valid, 9551 Invalid, 1255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1243 Invalid, 8 Unknown, 0 Unchecked, 34.5s Time] [2023-11-29 06:52:57,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4280 states. [2023-11-29 06:52:57,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4280 to 4143. [2023-11-29 06:52:57,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4143 states, 3284 states have (on average 1.2506090133982948) internal successors, (4107), 3340 states have internal predecessors, (4107), 709 states have call successors, (709), 148 states have call predecessors, (709), 149 states have return successors, (709), 684 states have call predecessors, (709), 708 states have call successors, (709) [2023-11-29 06:52:57,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4143 states to 4143 states and 5525 transitions. [2023-11-29 06:52:57,532 INFO L78 Accepts]: Start accepts. Automaton has 4143 states and 5525 transitions. Word has length 198 [2023-11-29 06:52:57,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:52:57,532 INFO L495 AbstractCegarLoop]: Abstraction has 4143 states and 5525 transitions. [2023-11-29 06:52:57,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 06:52:57,533 INFO L276 IsEmpty]: Start isEmpty. Operand 4143 states and 5525 transitions. [2023-11-29 06:52:57,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2023-11-29 06:52:57,539 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:52:57,539 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:52:57,550 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cffbc31e-725b-428f-91d2-2404c68ebcf2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 06:52:57,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cffbc31e-725b-428f-91d2-2404c68ebcf2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-29 06:52:57,740 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:52:57,740 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:52:57,740 INFO L85 PathProgramCache]: Analyzing trace with hash -948299006, now seen corresponding path program 1 times [2023-11-29 06:52:57,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:52:57,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611237311] [2023-11-29 06:52:57,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:52:57,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:52:58,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:58,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-29 06:52:58,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:58,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 06:52:58,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:58,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:52:58,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:58,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-29 06:52:58,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:58,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-29 06:52:58,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:58,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-29 06:52:58,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:58,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-29 06:52:58,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:58,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-29 06:52:58,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:58,878 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 06:52:58,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:52:58,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611237311] [2023-11-29 06:52:58,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611237311] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:52:58,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1363489462] [2023-11-29 06:52:58,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:52:58,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:52:58,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cffbc31e-725b-428f-91d2-2404c68ebcf2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:52:58,886 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cffbc31e-725b-428f-91d2-2404c68ebcf2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:52:58,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cffbc31e-725b-428f-91d2-2404c68ebcf2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 06:53:00,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:53:00,125 INFO L262 TraceCheckSpWp]: Trace formula consists of 2806 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 06:53:00,130 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:53:00,233 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 06:53:00,233 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:53:00,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1363489462] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:53:00,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:53:00,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 11 [2023-11-29 06:53:00,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165444713] [2023-11-29 06:53:00,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:53:00,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:53:00,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:53:00,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:53:00,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:53:00,235 INFO L87 Difference]: Start difference. First operand 4143 states and 5525 transitions. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 5 states have internal predecessors, (179), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 06:53:05,051 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:53:09,068 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:53:13,094 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:53:15,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:53:15,791 INFO L93 Difference]: Finished difference Result 9187 states and 12250 transitions. [2023-11-29 06:53:15,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:53:15,791 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 5 states have internal predecessors, (179), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) Word has length 198 [2023-11-29 06:53:15,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:53:15,810 INFO L225 Difference]: With dead ends: 9187 [2023-11-29 06:53:15,810 INFO L226 Difference]: Without dead ends: 5046 [2023-11-29 06:53:15,818 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 211 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:53:15,819 INFO L413 NwaCegarLoop]: 3434 mSDtfsCounter, 1714 mSDsluCounter, 6419 mSDsCounter, 0 mSdLazyCounter, 1689 mSolverCounterSat, 9 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1716 SdHoareTripleChecker+Valid, 9853 SdHoareTripleChecker+Invalid, 1701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1689 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:53:15,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1716 Valid, 9853 Invalid, 1701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1689 Invalid, 3 Unknown, 0 Unchecked, 15.0s Time] [2023-11-29 06:53:15,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5046 states. [2023-11-29 06:53:16,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5046 to 4717. [2023-11-29 06:53:16,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4717 states, 3683 states have (on average 1.267445017648656) internal successors, (4668), 3750 states have internal predecessors, (4668), 854 states have call successors, (854), 177 states have call predecessors, (854), 179 states have return successors, (855), 825 states have call predecessors, (855), 853 states have call successors, (855) [2023-11-29 06:53:16,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4717 states to 4717 states and 6377 transitions. [2023-11-29 06:53:16,234 INFO L78 Accepts]: Start accepts. Automaton has 4717 states and 6377 transitions. Word has length 198 [2023-11-29 06:53:16,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:53:16,235 INFO L495 AbstractCegarLoop]: Abstraction has 4717 states and 6377 transitions. [2023-11-29 06:53:16,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 5 states have internal predecessors, (179), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 06:53:16,235 INFO L276 IsEmpty]: Start isEmpty. Operand 4717 states and 6377 transitions. [2023-11-29 06:53:16,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2023-11-29 06:53:16,241 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:53:16,241 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:53:16,252 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cffbc31e-725b-428f-91d2-2404c68ebcf2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 06:53:16,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cffbc31e-725b-428f-91d2-2404c68ebcf2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:53:16,442 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:53:16,442 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:53:16,442 INFO L85 PathProgramCache]: Analyzing trace with hash 624332494, now seen corresponding path program 1 times [2023-11-29 06:53:16,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:53:16,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807982795] [2023-11-29 06:53:16,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:53:16,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:53:16,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:53:17,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-29 06:53:17,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:53:17,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 06:53:17,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:53:17,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:53:17,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:53:17,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-29 06:53:17,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:53:17,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:53:17,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:53:17,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 06:53:17,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:53:17,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-29 06:53:17,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:53:17,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-29 06:53:17,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:53:17,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-29 06:53:17,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:53:17,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-29 06:53:17,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:53:17,499 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 06:53:17,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:53:17,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807982795] [2023-11-29 06:53:17,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807982795] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:53:17,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:53:17,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 06:53:17,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846439977] [2023-11-29 06:53:17,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:53:17,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 06:53:17,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:53:17,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 06:53:17,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:53:17,502 INFO L87 Difference]: Start difference. First operand 4717 states and 6377 transitions. Second operand has 9 states, 9 states have (on average 20.0) internal successors, (180), 6 states have internal predecessors, (180), 3 states have call successors, (12), 5 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 06:53:22,953 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:53:26,974 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:53:30,994 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:53:35,017 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:53:39,058 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:53:43,075 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:53:56,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:53:56,416 INFO L93 Difference]: Finished difference Result 10564 states and 15109 transitions. [2023-11-29 06:53:56,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 06:53:56,417 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 20.0) internal successors, (180), 6 states have internal predecessors, (180), 3 states have call successors, (12), 5 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 207 [2023-11-29 06:53:56,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:53:56,439 INFO L225 Difference]: With dead ends: 10564 [2023-11-29 06:53:56,439 INFO L226 Difference]: Without dead ends: 5849 [2023-11-29 06:53:56,454 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-11-29 06:53:56,455 INFO L413 NwaCegarLoop]: 2156 mSDtfsCounter, 6623 mSDsluCounter, 7014 mSDsCounter, 0 mSdLazyCounter, 8246 mSolverCounterSat, 2448 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6772 SdHoareTripleChecker+Valid, 9170 SdHoareTripleChecker+Invalid, 10700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2448 IncrementalHoareTripleChecker+Valid, 8246 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.8s IncrementalHoareTripleChecker+Time [2023-11-29 06:53:56,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6772 Valid, 9170 Invalid, 10700 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2448 Valid, 8246 Invalid, 6 Unknown, 0 Unchecked, 37.8s Time] [2023-11-29 06:53:56,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5849 states. [2023-11-29 06:53:56,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5849 to 4141. [2023-11-29 06:53:56,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4141 states, 3283 states have (on average 1.2497715504112092) internal successors, (4103), 3339 states have internal predecessors, (4103), 708 states have call successors, (708), 148 states have call predecessors, (708), 149 states have return successors, (708), 683 states have call predecessors, (708), 707 states have call successors, (708) [2023-11-29 06:53:56,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4141 states to 4141 states and 5519 transitions. [2023-11-29 06:53:56,891 INFO L78 Accepts]: Start accepts. Automaton has 4141 states and 5519 transitions. Word has length 207 [2023-11-29 06:53:56,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:53:56,891 INFO L495 AbstractCegarLoop]: Abstraction has 4141 states and 5519 transitions. [2023-11-29 06:53:56,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 20.0) internal successors, (180), 6 states have internal predecessors, (180), 3 states have call successors, (12), 5 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 06:53:56,891 INFO L276 IsEmpty]: Start isEmpty. Operand 4141 states and 5519 transitions. [2023-11-29 06:53:56,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2023-11-29 06:53:56,896 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:53:56,896 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:53:56,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-29 06:53:56,896 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:53:56,897 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:53:56,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1460713833, now seen corresponding path program 1 times [2023-11-29 06:53:56,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:53:56,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990274011] [2023-11-29 06:53:56,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:53:56,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:53:57,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:53:57,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-29 06:53:57,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:53:57,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 06:53:57,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:53:58,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:53:58,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:53:58,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-29 06:53:58,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:53:58,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:53:58,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:53:58,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 06:53:58,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:53:58,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 06:53:58,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:53:58,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-29 06:53:58,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:53:58,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-29 06:53:58,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:53:58,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-29 06:53:58,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:53:58,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-29 06:53:58,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:53:58,112 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 06:53:58,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:53:58,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990274011] [2023-11-29 06:53:58,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990274011] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:53:58,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:53:58,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 06:53:58,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409764592] [2023-11-29 06:53:58,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:53:58,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 06:53:58,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:53:58,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 06:53:58,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:53:58,115 INFO L87 Difference]: Start difference. First operand 4141 states and 5519 transitions. Second operand has 9 states, 9 states have (on average 20.11111111111111) internal successors, (181), 6 states have internal predecessors, (181), 4 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2023-11-29 06:54:03,786 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:54:07,808 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:54:11,846 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:54:15,870 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:54:19,990 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:54:24,013 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:54:43,097 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:54:47,116 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:54:51,142 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:54:55,161 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:54:59,182 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:55:03,203 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:55:03,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:55:03,337 INFO L93 Difference]: Finished difference Result 10118 states and 14391 transitions. [2023-11-29 06:55:03,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 06:55:03,337 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 20.11111111111111) internal successors, (181), 6 states have internal predecessors, (181), 4 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 210 [2023-11-29 06:55:03,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:55:03,357 INFO L225 Difference]: With dead ends: 10118 [2023-11-29 06:55:03,357 INFO L226 Difference]: Without dead ends: 5979 [2023-11-29 06:55:03,366 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-11-29 06:55:03,367 INFO L413 NwaCegarLoop]: 2246 mSDtfsCounter, 8376 mSDsluCounter, 5884 mSDsCounter, 0 mSdLazyCounter, 6962 mSolverCounterSat, 3111 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 62.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8522 SdHoareTripleChecker+Valid, 8130 SdHoareTripleChecker+Invalid, 10085 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3111 IncrementalHoareTripleChecker+Valid, 6962 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 63.9s IncrementalHoareTripleChecker+Time [2023-11-29 06:55:03,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8522 Valid, 8130 Invalid, 10085 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3111 Valid, 6962 Invalid, 12 Unknown, 0 Unchecked, 63.9s Time] [2023-11-29 06:55:03,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5979 states. [2023-11-29 06:55:03,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5979 to 4139. [2023-11-29 06:55:03,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4139 states, 3282 states have (on average 1.2495429616087752) internal successors, (4101), 3338 states have internal predecessors, (4101), 707 states have call successors, (707), 148 states have call predecessors, (707), 149 states have return successors, (707), 682 states have call predecessors, (707), 706 states have call successors, (707) [2023-11-29 06:55:03,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4139 states to 4139 states and 5515 transitions. [2023-11-29 06:55:03,740 INFO L78 Accepts]: Start accepts. Automaton has 4139 states and 5515 transitions. Word has length 210 [2023-11-29 06:55:03,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:55:03,741 INFO L495 AbstractCegarLoop]: Abstraction has 4139 states and 5515 transitions. [2023-11-29 06:55:03,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 20.11111111111111) internal successors, (181), 6 states have internal predecessors, (181), 4 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2023-11-29 06:55:03,741 INFO L276 IsEmpty]: Start isEmpty. Operand 4139 states and 5515 transitions. [2023-11-29 06:55:03,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2023-11-29 06:55:03,745 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:55:03,745 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:55:03,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-29 06:55:03,746 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:55:03,746 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:55:03,746 INFO L85 PathProgramCache]: Analyzing trace with hash 164137888, now seen corresponding path program 1 times [2023-11-29 06:55:03,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:55:03,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419450221] [2023-11-29 06:55:03,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:55:03,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:55:04,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:55:04,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-29 06:55:04,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:55:04,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 06:55:04,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:55:04,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:55:04,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:55:04,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-29 06:55:04,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:55:04,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:55:04,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:55:04,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 06:55:04,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:55:04,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:55:04,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:55:04,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-29 06:55:04,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:55:04,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-29 06:55:04,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:55:04,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-29 06:55:04,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:55:04,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-29 06:55:04,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:55:04,895 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 06:55:04,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:55:04,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419450221] [2023-11-29 06:55:04,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419450221] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:55:04,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:55:04,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 06:55:04,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509523628] [2023-11-29 06:55:04,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:55:04,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 06:55:04,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:55:04,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 06:55:04,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:55:04,898 INFO L87 Difference]: Start difference. First operand 4139 states and 5515 transitions. Second operand has 9 states, 9 states have (on average 20.11111111111111) internal successors, (181), 6 states have internal predecessors, (181), 3 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-29 06:55:09,929 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:55:13,943 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:55:17,967 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:55:21,993 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:55:26,014 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:55:30,037 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:55:44,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:55:44,847 INFO L93 Difference]: Finished difference Result 9983 states and 14236 transitions. [2023-11-29 06:55:44,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 06:55:44,847 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 20.11111111111111) internal successors, (181), 6 states have internal predecessors, (181), 3 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 211 [2023-11-29 06:55:44,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:55:44,867 INFO L225 Difference]: With dead ends: 9983 [2023-11-29 06:55:44,868 INFO L226 Difference]: Without dead ends: 5846 [2023-11-29 06:55:44,878 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-11-29 06:55:44,879 INFO L413 NwaCegarLoop]: 2104 mSDtfsCounter, 10262 mSDsluCounter, 3857 mSDsCounter, 0 mSdLazyCounter, 5569 mSolverCounterSat, 4070 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10415 SdHoareTripleChecker+Valid, 5961 SdHoareTripleChecker+Invalid, 9645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4070 IncrementalHoareTripleChecker+Valid, 5569 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.6s IncrementalHoareTripleChecker+Time [2023-11-29 06:55:44,879 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10415 Valid, 5961 Invalid, 9645 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4070 Valid, 5569 Invalid, 6 Unknown, 0 Unchecked, 38.6s Time] [2023-11-29 06:55:44,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5846 states. [2023-11-29 06:55:45,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5846 to 4139. [2023-11-29 06:55:45,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4139 states, 3282 states have (on average 1.2492382693479585) internal successors, (4100), 3338 states have internal predecessors, (4100), 707 states have call successors, (707), 148 states have call predecessors, (707), 149 states have return successors, (707), 682 states have call predecessors, (707), 706 states have call successors, (707) [2023-11-29 06:55:45,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4139 states to 4139 states and 5514 transitions. [2023-11-29 06:55:45,306 INFO L78 Accepts]: Start accepts. Automaton has 4139 states and 5514 transitions. Word has length 211 [2023-11-29 06:55:45,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:55:45,306 INFO L495 AbstractCegarLoop]: Abstraction has 4139 states and 5514 transitions. [2023-11-29 06:55:45,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 20.11111111111111) internal successors, (181), 6 states have internal predecessors, (181), 3 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-29 06:55:45,307 INFO L276 IsEmpty]: Start isEmpty. Operand 4139 states and 5514 transitions. [2023-11-29 06:55:45,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2023-11-29 06:55:45,311 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:55:45,311 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:55:45,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-29 06:55:45,311 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:55:45,311 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:55:45,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1378831103, now seen corresponding path program 1 times [2023-11-29 06:55:45,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:55:45,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978867083] [2023-11-29 06:55:45,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:55:45,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:55:45,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:55:46,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-29 06:55:46,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:55:46,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 06:55:46,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:55:46,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:55:46,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:55:46,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-29 06:55:46,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:55:46,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:55:46,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:55:46,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 06:55:46,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:55:46,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:55:46,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:55:46,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-29 06:55:46,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:55:46,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 06:55:46,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:55:46,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-29 06:55:46,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:55:46,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-29 06:55:46,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:55:46,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-29 06:55:46,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:55:46,442 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 06:55:46,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:55:46,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978867083] [2023-11-29 06:55:46,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978867083] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:55:46,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:55:46,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 06:55:46,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642395828] [2023-11-29 06:55:46,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:55:46,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 06:55:46,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:55:46,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 06:55:46,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:55:46,444 INFO L87 Difference]: Start difference. First operand 4139 states and 5514 transitions. Second operand has 9 states, 9 states have (on average 20.22222222222222) internal successors, (182), 6 states have internal predecessors, (182), 4 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 06:55:51,976 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:55:56,006 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:56:00,027 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:56:04,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:56:08,083 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:56:12,104 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:56:30,964 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:56:34,984 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:56:39,008 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:56:43,058 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:56:47,090 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:56:51,110 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:56:51,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:56:51,240 INFO L93 Difference]: Finished difference Result 10113 states and 14379 transitions. [2023-11-29 06:56:51,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 06:56:51,241 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 20.22222222222222) internal successors, (182), 6 states have internal predecessors, (182), 4 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 214 [2023-11-29 06:56:51,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:56:51,261 INFO L225 Difference]: With dead ends: 10113 [2023-11-29 06:56:51,262 INFO L226 Difference]: Without dead ends: 5976 [2023-11-29 06:56:51,272 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-11-29 06:56:51,272 INFO L413 NwaCegarLoop]: 2274 mSDtfsCounter, 10590 mSDsluCounter, 5261 mSDsCounter, 0 mSdLazyCounter, 6158 mSolverCounterSat, 3918 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 61.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10736 SdHoareTripleChecker+Valid, 7535 SdHoareTripleChecker+Invalid, 10088 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3918 IncrementalHoareTripleChecker+Valid, 6158 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 63.5s IncrementalHoareTripleChecker+Time [2023-11-29 06:56:51,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10736 Valid, 7535 Invalid, 10088 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3918 Valid, 6158 Invalid, 12 Unknown, 0 Unchecked, 63.5s Time] [2023-11-29 06:56:51,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5976 states. [2023-11-29 06:56:51,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5976 to 4137. [2023-11-29 06:56:51,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4137 states, 3281 states have (on average 1.2490094483389211) internal successors, (4098), 3337 states have internal predecessors, (4098), 706 states have call successors, (706), 148 states have call predecessors, (706), 149 states have return successors, (706), 681 states have call predecessors, (706), 705 states have call successors, (706) [2023-11-29 06:56:51,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4137 states to 4137 states and 5510 transitions. [2023-11-29 06:56:51,801 INFO L78 Accepts]: Start accepts. Automaton has 4137 states and 5510 transitions. Word has length 214 [2023-11-29 06:56:51,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:56:51,802 INFO L495 AbstractCegarLoop]: Abstraction has 4137 states and 5510 transitions. [2023-11-29 06:56:51,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 20.22222222222222) internal successors, (182), 6 states have internal predecessors, (182), 4 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 06:56:51,802 INFO L276 IsEmpty]: Start isEmpty. Operand 4137 states and 5510 transitions. [2023-11-29 06:56:51,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2023-11-29 06:56:51,806 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:56:51,807 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:56:51,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-29 06:56:51,807 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:56:51,807 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:56:51,807 INFO L85 PathProgramCache]: Analyzing trace with hash 781851231, now seen corresponding path program 1 times [2023-11-29 06:56:51,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:56:51,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503910608] [2023-11-29 06:56:51,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:56:51,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:56:52,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:52,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-29 06:56:52,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:52,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 06:56:52,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:52,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:56:52,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:52,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-29 06:56:52,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:52,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:56:52,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:52,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 06:56:52,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:52,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:56:52,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:52,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-29 06:56:52,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:52,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 06:56:52,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:52,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-29 06:56:52,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:52,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-29 06:56:52,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:52,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-29 06:56:52,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:56:52,871 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 06:56:52,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:56:52,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503910608] [2023-11-29 06:56:52,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503910608] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:56:52,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:56:52,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 06:56:52,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316099432] [2023-11-29 06:56:52,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:56:52,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 06:56:52,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:56:52,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 06:56:52,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:56:52,873 INFO L87 Difference]: Start difference. First operand 4137 states and 5510 transitions. Second operand has 9 states, 9 states have (on average 20.333333333333332) internal successors, (183), 6 states have internal predecessors, (183), 4 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 06:56:58,544 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:57:02,583 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:57:06,617 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:57:10,632 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:57:14,654 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:57:18,677 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:57:40,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:57:44,498 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:57:48,527 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:57:52,569 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:57:56,594 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:58:00,614 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:58:00,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:58:00,738 INFO L93 Difference]: Finished difference Result 10108 states and 14369 transitions. [2023-11-29 06:58:00,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 06:58:00,739 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 20.333333333333332) internal successors, (183), 6 states have internal predecessors, (183), 4 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 215 [2023-11-29 06:58:00,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:58:00,756 INFO L225 Difference]: With dead ends: 10108 [2023-11-29 06:58:00,756 INFO L226 Difference]: Without dead ends: 5973 [2023-11-29 06:58:00,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-11-29 06:58:00,766 INFO L413 NwaCegarLoop]: 2331 mSDtfsCounter, 5936 mSDsluCounter, 7049 mSDsCounter, 0 mSdLazyCounter, 8722 mSolverCounterSat, 1653 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 64.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6086 SdHoareTripleChecker+Valid, 9380 SdHoareTripleChecker+Invalid, 10387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1653 IncrementalHoareTripleChecker+Valid, 8722 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 66.5s IncrementalHoareTripleChecker+Time [2023-11-29 06:58:00,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6086 Valid, 9380 Invalid, 10387 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1653 Valid, 8722 Invalid, 12 Unknown, 0 Unchecked, 66.5s Time] [2023-11-29 06:58:00,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5973 states. [2023-11-29 06:58:01,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5973 to 4133. [2023-11-29 06:58:01,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4133 states, 3279 states have (on average 1.2485513876181762) internal successors, (4094), 3335 states have internal predecessors, (4094), 704 states have call successors, (704), 148 states have call predecessors, (704), 149 states have return successors, (704), 679 states have call predecessors, (704), 703 states have call successors, (704) [2023-11-29 06:58:01,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4133 states to 4133 states and 5502 transitions. [2023-11-29 06:58:01,188 INFO L78 Accepts]: Start accepts. Automaton has 4133 states and 5502 transitions. Word has length 215 [2023-11-29 06:58:01,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:58:01,188 INFO L495 AbstractCegarLoop]: Abstraction has 4133 states and 5502 transitions. [2023-11-29 06:58:01,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 20.333333333333332) internal successors, (183), 6 states have internal predecessors, (183), 4 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 06:58:01,189 INFO L276 IsEmpty]: Start isEmpty. Operand 4133 states and 5502 transitions. [2023-11-29 06:58:01,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2023-11-29 06:58:01,193 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:58:01,193 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:58:01,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-29 06:58:01,193 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:58:01,193 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:58:01,194 INFO L85 PathProgramCache]: Analyzing trace with hash 780360846, now seen corresponding path program 1 times [2023-11-29 06:58:01,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:58:01,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464462368] [2023-11-29 06:58:01,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:58:01,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:58:01,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:58:02,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-29 06:58:02,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:58:02,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 06:58:02,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:58:02,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:58:02,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:58:02,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-29 06:58:02,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:58:02,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:58:02,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:58:02,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 06:58:02,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:58:02,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:58:02,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:58:02,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-29 06:58:02,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:58:02,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:58:02,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:58:02,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-29 06:58:02,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:58:02,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-29 06:58:02,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:58:02,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-29 06:58:02,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:58:02,241 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-29 06:58:02,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:58:02,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464462368] [2023-11-29 06:58:02,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464462368] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:58:02,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:58:02,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 06:58:02,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730425954] [2023-11-29 06:58:02,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:58:02,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:58:02,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:58:02,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:58:02,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:58:02,244 INFO L87 Difference]: Start difference. First operand 4133 states and 5502 transitions. Second operand has 8 states, 8 states have (on average 22.75) internal successors, (182), 5 states have internal predecessors, (182), 3 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-29 06:58:07,727 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:58:11,743 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:58:15,766 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:58:19,894 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:58:23,916 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:58:35,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:58:35,332 INFO L93 Difference]: Finished difference Result 9968 states and 14202 transitions. [2023-11-29 06:58:35,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 06:58:35,333 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 22.75) internal successors, (182), 5 states have internal predecessors, (182), 3 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 215 [2023-11-29 06:58:35,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:58:35,350 INFO L225 Difference]: With dead ends: 9968 [2023-11-29 06:58:35,350 INFO L226 Difference]: Without dead ends: 5837 [2023-11-29 06:58:35,359 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2023-11-29 06:58:35,360 INFO L413 NwaCegarLoop]: 2162 mSDtfsCounter, 3841 mSDsluCounter, 7370 mSDsCounter, 0 mSdLazyCounter, 6113 mSolverCounterSat, 1966 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3913 SdHoareTripleChecker+Valid, 9532 SdHoareTripleChecker+Invalid, 8084 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1966 IncrementalHoareTripleChecker+Valid, 6113 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:58:35,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3913 Valid, 9532 Invalid, 8084 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1966 Valid, 6113 Invalid, 5 Unknown, 0 Unchecked, 32.1s Time] [2023-11-29 06:58:35,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5837 states. [2023-11-29 06:58:35,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5837 to 4133. [2023-11-29 06:58:35,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4133 states, 3279 states have (on average 1.248246416590424) internal successors, (4093), 3335 states have internal predecessors, (4093), 704 states have call successors, (704), 148 states have call predecessors, (704), 149 states have return successors, (704), 679 states have call predecessors, (704), 703 states have call successors, (704) [2023-11-29 06:58:35,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4133 states to 4133 states and 5501 transitions. [2023-11-29 06:58:35,781 INFO L78 Accepts]: Start accepts. Automaton has 4133 states and 5501 transitions. Word has length 215 [2023-11-29 06:58:35,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:58:35,782 INFO L495 AbstractCegarLoop]: Abstraction has 4133 states and 5501 transitions. [2023-11-29 06:58:35,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 22.75) internal successors, (182), 5 states have internal predecessors, (182), 3 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-29 06:58:35,782 INFO L276 IsEmpty]: Start isEmpty. Operand 4133 states and 5501 transitions. [2023-11-29 06:58:35,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2023-11-29 06:58:35,787 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:58:35,787 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:58:35,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-29 06:58:35,788 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:58:35,788 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:58:35,788 INFO L85 PathProgramCache]: Analyzing trace with hash -499171975, now seen corresponding path program 1 times [2023-11-29 06:58:35,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:58:35,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980431292] [2023-11-29 06:58:35,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:58:35,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:58:36,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:58:36,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-29 06:58:36,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:58:36,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 06:58:36,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:58:36,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:58:36,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:58:36,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-29 06:58:36,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:58:36,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:58:36,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:58:36,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 06:58:36,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:58:36,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:58:36,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:58:36,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-29 06:58:36,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:58:36,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:58:36,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:58:36,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-29 06:58:36,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:58:36,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-29 06:58:36,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:58:36,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-29 06:58:36,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:58:36,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-29 06:58:36,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:58:36,793 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-29 06:58:36,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:58:36,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980431292] [2023-11-29 06:58:36,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980431292] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:58:36,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:58:36,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 06:58:36,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786132165] [2023-11-29 06:58:36,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:58:36,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:58:36,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:58:36,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:58:36,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:58:36,794 INFO L87 Difference]: Start difference. First operand 4133 states and 5501 transitions. Second operand has 8 states, 8 states have (on average 22.875) internal successors, (183), 5 states have internal predecessors, (183), 3 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-29 06:58:41,842 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:58:45,859 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:58:49,886 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:58:53,909 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:58:57,951 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:59:12,258 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:59:16,286 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:59:20,312 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:59:24,332 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:59:28,350 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:59:28,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:59:28,487 INFO L93 Difference]: Finished difference Result 10097 states and 14341 transitions. [2023-11-29 06:59:28,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 06:59:28,488 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 22.875) internal successors, (183), 5 states have internal predecessors, (183), 3 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 218 [2023-11-29 06:59:28,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:59:28,502 INFO L225 Difference]: With dead ends: 10097 [2023-11-29 06:59:28,502 INFO L226 Difference]: Without dead ends: 5966 [2023-11-29 06:59:28,510 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2023-11-29 06:59:28,511 INFO L413 NwaCegarLoop]: 2326 mSDtfsCounter, 8569 mSDsluCounter, 4923 mSDsCounter, 0 mSdLazyCounter, 4249 mSolverCounterSat, 3662 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 49.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8685 SdHoareTripleChecker+Valid, 7249 SdHoareTripleChecker+Invalid, 7921 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3662 IncrementalHoareTripleChecker+Valid, 4249 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 50.6s IncrementalHoareTripleChecker+Time [2023-11-29 06:59:28,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8685 Valid, 7249 Invalid, 7921 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3662 Valid, 4249 Invalid, 10 Unknown, 0 Unchecked, 50.6s Time] [2023-11-29 06:59:28,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5966 states. [2023-11-29 06:59:28,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5966 to 4131. [2023-11-29 06:59:28,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4131 states, 3278 states have (on average 1.2480170835875535) internal successors, (4091), 3334 states have internal predecessors, (4091), 703 states have call successors, (703), 148 states have call predecessors, (703), 149 states have return successors, (703), 678 states have call predecessors, (703), 702 states have call successors, (703) [2023-11-29 06:59:28,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4131 states to 4131 states and 5497 transitions. [2023-11-29 06:59:28,917 INFO L78 Accepts]: Start accepts. Automaton has 4131 states and 5497 transitions. Word has length 218 [2023-11-29 06:59:28,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:59:28,918 INFO L495 AbstractCegarLoop]: Abstraction has 4131 states and 5497 transitions. [2023-11-29 06:59:28,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 22.875) internal successors, (183), 5 states have internal predecessors, (183), 3 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-29 06:59:28,918 INFO L276 IsEmpty]: Start isEmpty. Operand 4131 states and 5497 transitions. [2023-11-29 06:59:28,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2023-11-29 06:59:28,920 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:59:28,921 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:59:28,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-29 06:59:28,921 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:59:28,921 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:59:28,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1685178917, now seen corresponding path program 1 times [2023-11-29 06:59:28,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:59:28,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938162797] [2023-11-29 06:59:28,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:59:28,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:59:29,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:59:29,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-29 06:59:29,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:59:29,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 06:59:29,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:59:29,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:59:29,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:59:29,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-29 06:59:29,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:59:29,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:59:29,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:59:29,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 06:59:29,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:59:29,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:59:29,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:59:29,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-29 06:59:29,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:59:29,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:59:29,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:59:29,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-29 06:59:29,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:59:29,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-29 06:59:29,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:59:29,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-29 06:59:29,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:59:29,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-29 06:59:29,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:59:29,834 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-29 06:59:29,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:59:29,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938162797] [2023-11-29 06:59:29,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938162797] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:59:29,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:59:29,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 06:59:29,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590112749] [2023-11-29 06:59:29,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:59:29,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:59:29,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:59:29,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:59:29,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:59:29,837 INFO L87 Difference]: Start difference. First operand 4131 states and 5497 transitions. Second operand has 8 states, 8 states have (on average 23.0) internal successors, (184), 5 states have internal predecessors, (184), 3 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-29 06:59:34,644 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:59:38,665 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:59:42,690 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:59:46,718 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:59:50,737 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:00:04,817 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:00:08,861 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:00:12,872 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:00:16,892 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:00:20,913 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:00:20,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:00:20,952 INFO L93 Difference]: Finished difference Result 10093 states and 14328 transitions. [2023-11-29 07:00:20,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 07:00:20,952 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 23.0) internal successors, (184), 5 states have internal predecessors, (184), 3 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 219 [2023-11-29 07:00:20,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:00:20,973 INFO L225 Difference]: With dead ends: 10093 [2023-11-29 07:00:20,973 INFO L226 Difference]: Without dead ends: 5964 [2023-11-29 07:00:20,983 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2023-11-29 07:00:20,983 INFO L413 NwaCegarLoop]: 2151 mSDtfsCounter, 6670 mSDsluCounter, 5300 mSDsCounter, 0 mSdLazyCounter, 4779 mSolverCounterSat, 2757 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 49.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6803 SdHoareTripleChecker+Valid, 7451 SdHoareTripleChecker+Invalid, 7546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2757 IncrementalHoareTripleChecker+Valid, 4779 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 50.1s IncrementalHoareTripleChecker+Time [2023-11-29 07:00:20,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6803 Valid, 7451 Invalid, 7546 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2757 Valid, 4779 Invalid, 10 Unknown, 0 Unchecked, 50.1s Time] [2023-11-29 07:00:20,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5964 states. [2023-11-29 07:00:21,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5964 to 4129. [2023-11-29 07:00:21,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4129 states, 3277 states have (on average 1.247787610619469) internal successors, (4089), 3333 states have internal predecessors, (4089), 702 states have call successors, (702), 148 states have call predecessors, (702), 149 states have return successors, (702), 677 states have call predecessors, (702), 701 states have call successors, (702) [2023-11-29 07:00:21,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4129 states to 4129 states and 5493 transitions. [2023-11-29 07:00:21,399 INFO L78 Accepts]: Start accepts. Automaton has 4129 states and 5493 transitions. Word has length 219 [2023-11-29 07:00:21,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:00:21,400 INFO L495 AbstractCegarLoop]: Abstraction has 4129 states and 5493 transitions. [2023-11-29 07:00:21,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 23.0) internal successors, (184), 5 states have internal predecessors, (184), 3 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-29 07:00:21,400 INFO L276 IsEmpty]: Start isEmpty. Operand 4129 states and 5493 transitions. [2023-11-29 07:00:21,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2023-11-29 07:00:21,402 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:00:21,402 INFO L195 NwaCegarLoop]: trace histogram [5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:00:21,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-29 07:00:21,403 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 07:00:21,403 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:00:21,403 INFO L85 PathProgramCache]: Analyzing trace with hash -2107606836, now seen corresponding path program 1 times [2023-11-29 07:00:21,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:00:21,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327955987] [2023-11-29 07:00:21,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:00:21,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:00:21,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:00:22,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-29 07:00:22,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:00:22,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 07:00:22,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:00:22,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 07:00:22,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:00:22,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-29 07:00:22,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:00:22,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 07:00:22,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:00:22,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 07:00:22,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:00:22,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 07:00:22,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:00:22,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-29 07:00:22,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:00:22,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 07:00:22,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:00:22,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-29 07:00:22,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:00:22,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-29 07:00:22,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:00:22,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-29 07:00:22,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:00:22,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-29 07:00:22,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:00:22,324 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-29 07:00:22,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:00:22,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327955987] [2023-11-29 07:00:22,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327955987] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:00:22,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:00:22,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 07:00:22,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550103658] [2023-11-29 07:00:22,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:00:22,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 07:00:22,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:00:22,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 07:00:22,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-29 07:00:22,326 INFO L87 Difference]: Start difference. First operand 4129 states and 5493 transitions. Second operand has 8 states, 8 states have (on average 22.875) internal successors, (183), 5 states have internal predecessors, (183), 3 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-29 07:00:28,475 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:00:32,511 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:00:36,535 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:00:40,558 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:00:44,576 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:00:59,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:00:59,118 INFO L93 Difference]: Finished difference Result 9956 states and 14171 transitions. [2023-11-29 07:00:59,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 07:00:59,119 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 22.875) internal successors, (183), 5 states have internal predecessors, (183), 3 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 219 [2023-11-29 07:00:59,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:00:59,135 INFO L225 Difference]: With dead ends: 9956 [2023-11-29 07:00:59,135 INFO L226 Difference]: Without dead ends: 5829 [2023-11-29 07:00:59,144 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2023-11-29 07:00:59,144 INFO L413 NwaCegarLoop]: 2208 mSDtfsCounter, 2678 mSDsluCounter, 9795 mSDsCounter, 0 mSdLazyCounter, 7655 mSolverCounterSat, 1155 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2750 SdHoareTripleChecker+Valid, 12003 SdHoareTripleChecker+Invalid, 8815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1155 IncrementalHoareTripleChecker+Valid, 7655 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.6s IncrementalHoareTripleChecker+Time [2023-11-29 07:00:59,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2750 Valid, 12003 Invalid, 8815 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1155 Valid, 7655 Invalid, 5 Unknown, 0 Unchecked, 35.6s Time] [2023-11-29 07:00:59,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5829 states. [2023-11-29 07:00:59,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5829 to 4129. [2023-11-29 07:00:59,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4129 states, 3277 states have (on average 1.2474824534635338) internal successors, (4088), 3333 states have internal predecessors, (4088), 702 states have call successors, (702), 148 states have call predecessors, (702), 149 states have return successors, (702), 677 states have call predecessors, (702), 701 states have call successors, (702) [2023-11-29 07:00:59,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4129 states to 4129 states and 5492 transitions. [2023-11-29 07:00:59,533 INFO L78 Accepts]: Start accepts. Automaton has 4129 states and 5492 transitions. Word has length 219 [2023-11-29 07:00:59,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:00:59,534 INFO L495 AbstractCegarLoop]: Abstraction has 4129 states and 5492 transitions. [2023-11-29 07:00:59,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 22.875) internal successors, (183), 5 states have internal predecessors, (183), 3 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-29 07:00:59,534 INFO L276 IsEmpty]: Start isEmpty. Operand 4129 states and 5492 transitions. [2023-11-29 07:00:59,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2023-11-29 07:00:59,536 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:00:59,537 INFO L195 NwaCegarLoop]: trace histogram [5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:00:59,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-29 07:00:59,537 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 07:00:59,537 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:00:59,537 INFO L85 PathProgramCache]: Analyzing trace with hash -423539687, now seen corresponding path program 1 times [2023-11-29 07:00:59,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:00:59,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524777868] [2023-11-29 07:00:59,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:00:59,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:01:00,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:00,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-29 07:01:00,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:00,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 07:01:00,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:00,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 07:01:00,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:00,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-29 07:01:00,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:00,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 07:01:00,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:00,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 07:01:00,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:00,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 07:01:00,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:00,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-29 07:01:00,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:00,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 07:01:00,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:00,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-29 07:01:00,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:00,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-29 07:01:00,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:00,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-29 07:01:00,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:00,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-29 07:01:00,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:00,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-29 07:01:00,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:00,481 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-29 07:01:00,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:01:00,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524777868] [2023-11-29 07:01:00,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524777868] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:01:00,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:01:00,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 07:01:00,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390955679] [2023-11-29 07:01:00,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:01:00,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 07:01:00,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:01:00,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 07:01:00,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-29 07:01:00,483 INFO L87 Difference]: Start difference. First operand 4129 states and 5492 transitions. Second operand has 8 states, 8 states have (on average 23.0) internal successors, (184), 5 states have internal predecessors, (184), 3 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-29 07:01:06,236 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:01:10,282 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:01:14,300 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:01:18,321 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:01:22,340 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:01:40,396 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:01:44,439 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:01:48,461 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:01:52,483 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:01:56,508 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:01:56,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:01:56,623 INFO L93 Difference]: Finished difference Result 10085 states and 14310 transitions. [2023-11-29 07:01:56,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 07:01:56,623 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 23.0) internal successors, (184), 5 states have internal predecessors, (184), 3 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 222 [2023-11-29 07:01:56,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:01:56,639 INFO L225 Difference]: With dead ends: 10085 [2023-11-29 07:01:56,639 INFO L226 Difference]: Without dead ends: 5958 [2023-11-29 07:01:56,649 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2023-11-29 07:01:56,649 INFO L413 NwaCegarLoop]: 2234 mSDtfsCounter, 6380 mSDsluCounter, 5784 mSDsCounter, 0 mSdLazyCounter, 5447 mSolverCounterSat, 2146 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 53.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6493 SdHoareTripleChecker+Valid, 8018 SdHoareTripleChecker+Invalid, 7603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2146 IncrementalHoareTripleChecker+Valid, 5447 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 54.9s IncrementalHoareTripleChecker+Time [2023-11-29 07:01:56,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6493 Valid, 8018 Invalid, 7603 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2146 Valid, 5447 Invalid, 10 Unknown, 0 Unchecked, 54.9s Time] [2023-11-29 07:01:56,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5958 states. [2023-11-29 07:01:57,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5958 to 4127. [2023-11-29 07:01:57,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4127 states, 3276 states have (on average 1.2472527472527473) internal successors, (4086), 3332 states have internal predecessors, (4086), 701 states have call successors, (701), 148 states have call predecessors, (701), 149 states have return successors, (701), 676 states have call predecessors, (701), 700 states have call successors, (701) [2023-11-29 07:01:57,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4127 states to 4127 states and 5488 transitions. [2023-11-29 07:01:57,064 INFO L78 Accepts]: Start accepts. Automaton has 4127 states and 5488 transitions. Word has length 222 [2023-11-29 07:01:57,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:01:57,065 INFO L495 AbstractCegarLoop]: Abstraction has 4127 states and 5488 transitions. [2023-11-29 07:01:57,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 23.0) internal successors, (184), 5 states have internal predecessors, (184), 3 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-29 07:01:57,065 INFO L276 IsEmpty]: Start isEmpty. Operand 4127 states and 5488 transitions. [2023-11-29 07:01:57,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2023-11-29 07:01:57,067 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:01:57,067 INFO L195 NwaCegarLoop]: trace histogram [5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:01:57,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-29 07:01:57,068 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 07:01:57,068 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:01:57,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1882344783, now seen corresponding path program 1 times [2023-11-29 07:01:57,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:01:57,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359468145] [2023-11-29 07:01:57,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:57,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:01:57,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:57,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-29 07:01:57,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:57,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 07:01:57,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:57,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 07:01:57,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:57,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-29 07:01:58,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:58,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 07:01:58,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:58,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 07:01:58,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:58,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 07:01:58,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:58,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-29 07:01:58,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:58,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 07:01:58,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:58,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-29 07:01:58,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:58,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-29 07:01:58,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:58,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-29 07:01:58,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:58,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-29 07:01:58,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:58,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-29 07:01:58,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:58,023 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-29 07:01:58,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:01:58,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359468145] [2023-11-29 07:01:58,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359468145] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:01:58,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:01:58,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 07:01:58,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418834241] [2023-11-29 07:01:58,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:01:58,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 07:01:58,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:01:58,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 07:01:58,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-29 07:01:58,025 INFO L87 Difference]: Start difference. First operand 4127 states and 5488 transitions. Second operand has 8 states, 8 states have (on average 23.125) internal successors, (185), 5 states have internal predecessors, (185), 3 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-29 07:02:02,932 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:02:06,952 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:02:10,972 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []