./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M1-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f537cbac-ebe4-41b1-acd0-e4c7b7039141/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f537cbac-ebe4-41b1-acd0-e4c7b7039141/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_f537cbac-ebe4-41b1-acd0-e4c7b7039141/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f537cbac-ebe4-41b1-acd0-e4c7b7039141/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M1-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f537cbac-ebe4-41b1-acd0-e4c7b7039141/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_f537cbac-ebe4-41b1-acd0-e4c7b7039141/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 f077881e7f4fa96e31e8798f1b4a7ec1ee00f86778c2b79845cdeaf2537e700e --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 07:00:58,149 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 07:00:58,210 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f537cbac-ebe4-41b1-acd0-e4c7b7039141/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-29 07:00:58,215 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 07:00:58,216 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 07:00:58,239 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 07:00:58,240 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 07:00:58,240 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 07:00:58,241 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 07:00:58,241 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 07:00:58,242 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 07:00:58,242 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 07:00:58,243 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 07:00:58,243 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 07:00:58,244 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 07:00:58,244 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 07:00:58,245 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 07:00:58,245 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 07:00:58,246 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 07:00:58,246 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 07:00:58,247 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 07:00:58,248 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 07:00:58,249 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 07:00:58,249 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 07:00:58,250 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 07:00:58,250 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 07:00:58,250 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 07:00:58,251 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 07:00:58,251 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 07:00:58,252 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 07:00:58,252 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 07:00:58,252 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 07:00:58,253 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 07:00:58,253 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 07:00:58,253 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 07:00:58,253 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 07:00:58,254 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 07:00:58,254 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 07:00:58,254 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 07:00:58,254 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 07:00:58,254 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 07:00:58,255 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 07:00:58,255 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_f537cbac-ebe4-41b1-acd0-e4c7b7039141/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f537cbac-ebe4-41b1-acd0-e4c7b7039141/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f077881e7f4fa96e31e8798f1b4a7ec1ee00f86778c2b79845cdeaf2537e700e [2023-11-29 07:00:58,483 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 07:00:58,505 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 07:00:58,507 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 07:00:58,509 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 07:00:58,509 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 07:00:58,510 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f537cbac-ebe4-41b1-acd0-e4c7b7039141/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M1-1.c [2023-11-29 07:01:01,168 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 07:01:01,435 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 07:01:01,436 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f537cbac-ebe4-41b1-acd0-e4c7b7039141/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M1-1.c [2023-11-29 07:01:01,455 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f537cbac-ebe4-41b1-acd0-e4c7b7039141/bin/uautomizer-verify-BQ2R08f2Ya/data/28f022e15/cd33b1a728a74515bd23b33c0b4d03e6/FLAG6fd87d413 [2023-11-29 07:01:01,470 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f537cbac-ebe4-41b1-acd0-e4c7b7039141/bin/uautomizer-verify-BQ2R08f2Ya/data/28f022e15/cd33b1a728a74515bd23b33c0b4d03e6 [2023-11-29 07:01:01,472 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 07:01:01,474 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 07:01:01,475 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 07:01:01,475 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 07:01:01,479 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 07:01:01,480 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:01:01" (1/1) ... [2023-11-29 07:01:01,481 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27a953ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:01:01, skipping insertion in model container [2023-11-29 07:01:01,481 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:01:01" (1/1) ... [2023-11-29 07:01:01,540 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 07:01:01,671 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_f537cbac-ebe4-41b1-acd0-e4c7b7039141/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M1-1.c[1674,1687] [2023-11-29 07:01:01,931 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 07:01:01,946 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 07:01:01,954 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"/tmp/aaaa/nxt.bug1.i","-S") [42] [2023-11-29 07:01:01,959 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_f537cbac-ebe4-41b1-acd0-e4c7b7039141/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M1-1.c[1674,1687] [2023-11-29 07:01:02,095 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 07:01:02,116 INFO L206 MainTranslator]: Completed translation [2023-11-29 07:01:02,116 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:01:02 WrapperNode [2023-11-29 07:01:02,116 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 07:01:02,117 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 07:01:02,117 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 07:01:02,117 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 07:01:02,123 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:01:02" (1/1) ... [2023-11-29 07:01:02,173 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:01:02" (1/1) ... [2023-11-29 07:01:02,368 INFO L138 Inliner]: procedures = 57, calls = 1672, calls flagged for inlining = 24, calls inlined = 24, statements flattened = 3804 [2023-11-29 07:01:02,368 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 07:01:02,369 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 07:01:02,369 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 07:01:02,369 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 07:01:02,380 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:01:02" (1/1) ... [2023-11-29 07:01:02,380 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:01:02" (1/1) ... [2023-11-29 07:01:02,401 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:01:02" (1/1) ... [2023-11-29 07:01:02,449 INFO L175 MemorySlicer]: Split 1232 memory accesses to 17 slices as follows [2, 7, 241, 8, 4, 282, 156, 113, 79, 57, 57, 79, 2, 56, 79, 8, 2]. 23 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 2, 0, 0, 0, 0, 2, 2, 1, 1, 0, 0, 0, 0, 0, 0, 0]. The 181 writes are split as follows [0, 3, 25, 4, 0, 25, 2, 2, 1, 1, 29, 27, 1, 29, 27, 4, 1]. [2023-11-29 07:01:02,450 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:01:02" (1/1) ... [2023-11-29 07:01:02,450 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:01:02" (1/1) ... [2023-11-29 07:01:02,519 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:01:02" (1/1) ... [2023-11-29 07:01:02,533 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:01:02" (1/1) ... [2023-11-29 07:01:02,545 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:01:02" (1/1) ... [2023-11-29 07:01:02,557 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:01:02" (1/1) ... [2023-11-29 07:01:02,585 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 07:01:02,586 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 07:01:02,586 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 07:01:02,586 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 07:01:02,587 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:01:02" (1/1) ... [2023-11-29 07:01:02,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 07:01:02,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f537cbac-ebe4-41b1-acd0-e4c7b7039141/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:01:02,618 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f537cbac-ebe4-41b1-acd0-e4c7b7039141/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 07:01:02,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f537cbac-ebe4-41b1-acd0-e4c7b7039141/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 07:01:02,654 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 07:01:02,655 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2023-11-29 07:01:02,655 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2023-11-29 07:01:02,655 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2023-11-29 07:01:02,655 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2023-11-29 07:01:02,655 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 07:01:02,655 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2023-11-29 07:01:02,655 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2023-11-29 07:01:02,656 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2023-11-29 07:01:02,656 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2023-11-29 07:01:02,656 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2023-11-29 07:01:02,656 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2023-11-29 07:01:02,692 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-29 07:01:02,692 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-29 07:01:02,692 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-29 07:01:02,693 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-29 07:01:02,693 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-29 07:01:02,693 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-29 07:01:02,693 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-29 07:01:02,693 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-29 07:01:02,693 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-11-29 07:01:02,693 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-11-29 07:01:02,693 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-11-29 07:01:02,694 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2023-11-29 07:01:02,694 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2023-11-29 07:01:02,694 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2023-11-29 07:01:02,694 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2023-11-29 07:01:02,694 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2023-11-29 07:01:02,694 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2023-11-29 07:01:02,694 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2023-11-29 07:01:02,694 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2023-11-29 07:01:02,695 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2023-11-29 07:01:02,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2023-11-29 07:01:02,695 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2023-11-29 07:01:02,695 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2023-11-29 07:01:02,695 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2023-11-29 07:01:02,695 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2023-11-29 07:01:02,695 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 07:01:02,695 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2023-11-29 07:01:02,696 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2023-11-29 07:01:02,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-29 07:01:02,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-29 07:01:02,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-29 07:01:02,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-29 07:01:02,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-29 07:01:02,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-29 07:01:02,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-29 07:01:02,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-29 07:01:02,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-11-29 07:01:02,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-11-29 07:01:02,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-11-29 07:01:02,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2023-11-29 07:01:02,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2023-11-29 07:01:02,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2023-11-29 07:01:02,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2023-11-29 07:01:02,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2023-11-29 07:01:02,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2023-11-29 07:01:02,698 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2023-11-29 07:01:02,698 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2023-11-29 07:01:02,698 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 07:01:02,698 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 07:01:02,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 07:01:02,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 07:01:02,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-29 07:01:02,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-29 07:01:02,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-29 07:01:02,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-29 07:01:02,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-29 07:01:02,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-29 07:01:02,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-11-29 07:01:02,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-11-29 07:01:02,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-11-29 07:01:02,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-11-29 07:01:02,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-11-29 07:01:02,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-11-29 07:01:02,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2023-11-29 07:01:02,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2023-11-29 07:01:02,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2023-11-29 07:01:02,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 07:01:02,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 07:01:02,701 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2023-11-29 07:01:02,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2023-11-29 07:01:02,701 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2023-11-29 07:01:02,701 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2023-11-29 07:01:02,701 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2023-11-29 07:01:02,701 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2023-11-29 07:01:03,029 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 07:01:03,032 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 07:01:10,414 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 07:01:10,507 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 07:01:10,507 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 07:01:10,508 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:01:10 BoogieIcfgContainer [2023-11-29 07:01:10,508 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 07:01:10,510 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 07:01:10,510 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 07:01:10,513 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 07:01:10,513 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 07:01:01" (1/3) ... [2023-11-29 07:01:10,514 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cf09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:01:10, skipping insertion in model container [2023-11-29 07:01:10,514 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:01:02" (2/3) ... [2023-11-29 07:01:10,514 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cf09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:01:10, skipping insertion in model container [2023-11-29 07:01:10,514 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:01:10" (3/3) ... [2023-11-29 07:01:10,515 INFO L112 eAbstractionObserver]: Analyzing ICFG rekcba_nxt.1.M1-1.c [2023-11-29 07:01:10,529 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 07:01:10,530 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 07:01:10,593 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 07:01:10,598 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;@26f22bba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 07:01:10,598 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 07:01:10,607 INFO L276 IsEmpty]: Start isEmpty. Operand has 1105 states, 696 states have (on average 1.3031609195402298) internal successors, (907), 728 states have internal predecessors, (907), 392 states have call successors, (392), 15 states have call predecessors, (392), 15 states have return successors, (392), 390 states have call predecessors, (392), 392 states have call successors, (392) [2023-11-29 07:01:10,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 717 [2023-11-29 07:01:10,657 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:01:10,658 INFO L195 NwaCegarLoop]: trace histogram [85, 85, 85, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:01:10,658 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 07:01:10,695 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:01:10,696 INFO L85 PathProgramCache]: Analyzing trace with hash 735321255, now seen corresponding path program 1 times [2023-11-29 07:01:10,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:01:10,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754202967] [2023-11-29 07:01:10,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:10,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:01:11,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:11,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 07:01:11,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:11,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 07:01:11,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:11,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 07:01:11,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:11,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-29 07:01:11,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:11,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-29 07:01:11,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:11,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-29 07:01:11,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:11,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-29 07:01:11,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:11,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-29 07:01:11,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:11,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-29 07:01:11,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:11,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-29 07:01:11,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:11,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-29 07:01:11,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:11,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-29 07:01:11,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:11,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-29 07:01:11,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:11,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-29 07:01:11,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:11,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-29 07:01:11,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:11,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-29 07:01:11,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:11,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-29 07:01:11,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:11,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-29 07:01:11,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:11,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-29 07:01:11,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:11,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-29 07:01:11,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:11,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-11-29 07:01:11,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:11,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-29 07:01:11,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:11,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-11-29 07:01:11,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:11,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-11-29 07:01:11,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:11,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-11-29 07:01:11,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:11,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-11-29 07:01:11,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:11,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-11-29 07:01:11,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:11,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-11-29 07:01:11,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:11,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-29 07:01:11,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:11,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-11-29 07:01:11,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:11,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-11-29 07:01:11,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:11,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-11-29 07:01:11,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:11,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-11-29 07:01:11,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:11,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 401 [2023-11-29 07:01:11,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:11,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2023-11-29 07:01:11,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:11,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 413 [2023-11-29 07:01:11,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:11,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 419 [2023-11-29 07:01:11,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:11,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2023-11-29 07:01:11,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:11,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2023-11-29 07:01:11,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:11,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 437 [2023-11-29 07:01:11,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:11,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 443 [2023-11-29 07:01:11,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:11,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 449 [2023-11-29 07:01:11,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:11,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2023-11-29 07:01:11,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:11,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 461 [2023-11-29 07:01:11,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:11,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 467 [2023-11-29 07:01:11,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:11,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 473 [2023-11-29 07:01:11,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:11,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2023-11-29 07:01:11,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:11,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 485 [2023-11-29 07:01:11,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:11,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 491 [2023-11-29 07:01:11,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:11,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 497 [2023-11-29 07:01:11,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:11,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2023-11-29 07:01:11,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:11,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 509 [2023-11-29 07:01:11,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:11,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 515 [2023-11-29 07:01:11,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:11,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 521 [2023-11-29 07:01:11,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:11,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2023-11-29 07:01:12,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:12,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 533 [2023-11-29 07:01:12,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:12,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 539 [2023-11-29 07:01:12,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:12,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 545 [2023-11-29 07:01:12,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:12,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 551 [2023-11-29 07:01:12,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:12,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 557 [2023-11-29 07:01:12,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:12,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 563 [2023-11-29 07:01:12,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:12,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 569 [2023-11-29 07:01:12,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:12,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 575 [2023-11-29 07:01:12,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:12,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 581 [2023-11-29 07:01:12,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:12,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 587 [2023-11-29 07:01:12,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:12,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 593 [2023-11-29 07:01:12,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:12,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2023-11-29 07:01:12,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:12,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 605 [2023-11-29 07:01:12,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:12,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 611 [2023-11-29 07:01:12,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:12,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 617 [2023-11-29 07:01:12,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:12,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 623 [2023-11-29 07:01:12,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:12,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 629 [2023-11-29 07:01:12,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:12,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 635 [2023-11-29 07:01:12,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:12,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 641 [2023-11-29 07:01:12,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:12,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 647 [2023-11-29 07:01:12,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:12,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 653 [2023-11-29 07:01:12,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:12,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 659 [2023-11-29 07:01:12,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:12,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 665 [2023-11-29 07:01:12,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:12,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 671 [2023-11-29 07:01:12,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:12,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 677 [2023-11-29 07:01:12,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:12,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 683 [2023-11-29 07:01:12,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:12,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 689 [2023-11-29 07:01:12,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:12,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 695 [2023-11-29 07:01:12,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:12,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 701 [2023-11-29 07:01:12,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:12,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 707 [2023-11-29 07:01:12,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:12,135 INFO L134 CoverageAnalysis]: Checked inductivity of 14280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14280 trivial. 0 not checked. [2023-11-29 07:01:12,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:01:12,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754202967] [2023-11-29 07:01:12,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754202967] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:01:12,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:01:12,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 07:01:12,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323555834] [2023-11-29 07:01:12,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:01:12,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 07:01:12,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:01:12,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 07:01:12,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 07:01:12,179 INFO L87 Difference]: Start difference. First operand has 1105 states, 696 states have (on average 1.3031609195402298) internal successors, (907), 728 states have internal predecessors, (907), 392 states have call successors, (392), 15 states have call predecessors, (392), 15 states have return successors, (392), 390 states have call predecessors, (392), 392 states have call successors, (392) Second operand has 2 states, 2 states have (on average 147.0) internal successors, (294), 2 states have internal predecessors, (294), 2 states have call successors, (85), 1 states have call predecessors, (85), 1 states have return successors, (85), 1 states have call predecessors, (85), 2 states have call successors, (85) [2023-11-29 07:01:16,258 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 07:01:16,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:01:16,354 INFO L93 Difference]: Finished difference Result 2208 states and 3755 transitions. [2023-11-29 07:01:16,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 07:01:16,357 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 147.0) internal successors, (294), 2 states have internal predecessors, (294), 2 states have call successors, (85), 1 states have call predecessors, (85), 1 states have return successors, (85), 1 states have call predecessors, (85), 2 states have call successors, (85) Word has length 716 [2023-11-29 07:01:16,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:01:16,379 INFO L225 Difference]: With dead ends: 2208 [2023-11-29 07:01:16,379 INFO L226 Difference]: Without dead ends: 1102 [2023-11-29 07:01:16,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 257 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 07:01:16,395 INFO L413 NwaCegarLoop]: 1663 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1663 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-11-29 07:01:16,396 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1663 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2023-11-29 07:01:16,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1102 states. [2023-11-29 07:01:16,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1102 to 1102. [2023-11-29 07:01:16,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1102 states, 694 states have (on average 1.2968299711815563) internal successors, (900), 725 states have internal predecessors, (900), 392 states have call successors, (392), 15 states have call predecessors, (392), 15 states have return successors, (392), 390 states have call predecessors, (392), 392 states have call successors, (392) [2023-11-29 07:01:16,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1102 states to 1102 states and 1684 transitions. [2023-11-29 07:01:16,661 INFO L78 Accepts]: Start accepts. Automaton has 1102 states and 1684 transitions. Word has length 716 [2023-11-29 07:01:16,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:01:16,662 INFO L495 AbstractCegarLoop]: Abstraction has 1102 states and 1684 transitions. [2023-11-29 07:01:16,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 147.0) internal successors, (294), 2 states have internal predecessors, (294), 2 states have call successors, (85), 1 states have call predecessors, (85), 1 states have return successors, (85), 1 states have call predecessors, (85), 2 states have call successors, (85) [2023-11-29 07:01:16,663 INFO L276 IsEmpty]: Start isEmpty. Operand 1102 states and 1684 transitions. [2023-11-29 07:01:16,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 717 [2023-11-29 07:01:16,687 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:01:16,688 INFO L195 NwaCegarLoop]: trace histogram [85, 85, 85, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:01:16,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 07:01:16,688 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 07:01:16,689 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:01:16,689 INFO L85 PathProgramCache]: Analyzing trace with hash 1324394833, now seen corresponding path program 1 times [2023-11-29 07:01:16,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:01:16,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679174671] [2023-11-29 07:01:16,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:16,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:01:22,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 07:01:25,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 07:01:25,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 07:01:25,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-29 07:01:25,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-29 07:01:25,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-29 07:01:25,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-29 07:01:25,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-29 07:01:25,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-29 07:01:25,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-29 07:01:25,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-29 07:01:25,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-29 07:01:25,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-29 07:01:25,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-29 07:01:25,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-29 07:01:25,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-29 07:01:25,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-29 07:01:25,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-29 07:01:25,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-29 07:01:25,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-29 07:01:25,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-11-29 07:01:25,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-29 07:01:25,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-11-29 07:01:25,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-11-29 07:01:25,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-11-29 07:01:25,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-11-29 07:01:25,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-11-29 07:01:25,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-11-29 07:01:25,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-29 07:01:25,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-11-29 07:01:25,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-11-29 07:01:25,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-11-29 07:01:25,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-11-29 07:01:25,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 401 [2023-11-29 07:01:25,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2023-11-29 07:01:25,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 413 [2023-11-29 07:01:25,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 419 [2023-11-29 07:01:25,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2023-11-29 07:01:25,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2023-11-29 07:01:25,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 437 [2023-11-29 07:01:25,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 443 [2023-11-29 07:01:25,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 449 [2023-11-29 07:01:25,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2023-11-29 07:01:25,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 461 [2023-11-29 07:01:25,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 467 [2023-11-29 07:01:25,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 473 [2023-11-29 07:01:25,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2023-11-29 07:01:25,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 485 [2023-11-29 07:01:25,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 491 [2023-11-29 07:01:25,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 497 [2023-11-29 07:01:25,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2023-11-29 07:01:25,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 509 [2023-11-29 07:01:25,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 515 [2023-11-29 07:01:25,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 521 [2023-11-29 07:01:25,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2023-11-29 07:01:25,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 533 [2023-11-29 07:01:25,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 539 [2023-11-29 07:01:25,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 545 [2023-11-29 07:01:25,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 551 [2023-11-29 07:01:25,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 557 [2023-11-29 07:01:25,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 563 [2023-11-29 07:01:25,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 569 [2023-11-29 07:01:25,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 575 [2023-11-29 07:01:25,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 581 [2023-11-29 07:01:25,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 587 [2023-11-29 07:01:25,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 593 [2023-11-29 07:01:25,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2023-11-29 07:01:25,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 605 [2023-11-29 07:01:25,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 611 [2023-11-29 07:01:25,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 617 [2023-11-29 07:01:25,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 623 [2023-11-29 07:01:25,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 629 [2023-11-29 07:01:25,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 635 [2023-11-29 07:01:25,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 641 [2023-11-29 07:01:25,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 647 [2023-11-29 07:01:25,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 653 [2023-11-29 07:01:25,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 659 [2023-11-29 07:01:25,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 665 [2023-11-29 07:01:25,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 671 [2023-11-29 07:01:25,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 677 [2023-11-29 07:01:25,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 683 [2023-11-29 07:01:25,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 689 [2023-11-29 07:01:25,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 695 [2023-11-29 07:01:25,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 701 [2023-11-29 07:01:25,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 707 [2023-11-29 07:01:25,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:25,810 INFO L134 CoverageAnalysis]: Checked inductivity of 14280 backedges. 27 proven. 225 refuted. 0 times theorem prover too weak. 14028 trivial. 0 not checked. [2023-11-29 07:01:25,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:01:25,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679174671] [2023-11-29 07:01:25,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679174671] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:01:25,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1484695592] [2023-11-29 07:01:25,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:01:25,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:01:25,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f537cbac-ebe4-41b1-acd0-e4c7b7039141/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:01:25,819 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f537cbac-ebe4-41b1-acd0-e4c7b7039141/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:01:25,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f537cbac-ebe4-41b1-acd0-e4c7b7039141/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 07:01:30,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:01:30,628 INFO L262 TraceCheckSpWp]: Trace formula consists of 2223 conjuncts, 346 conjunts are in the unsatisfiable core [2023-11-29 07:01:30,688 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:01:30,749 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2023-11-29 07:01:33,970 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 200 treesize of output 195 [2023-11-29 07:01:35,409 INFO L224 Elim1Store]: Index analysis took 1410 ms [2023-11-29 07:01:35,904 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 325 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 190 treesize of output 111 [2023-11-29 07:05:48,390 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 07:05:48,390 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 26 select indices, 26 select index equivalence classes, 325 disjoint index pairs (out of 325 index pairs), introduced 26 new quantified variables, introduced 325 case distinctions, treesize of input 684 treesize of output 476 [2023-11-29 07:06:30,810 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 747 treesize of output 595 [2023-11-29 07:06:33,926 INFO L134 CoverageAnalysis]: Checked inductivity of 14280 backedges. 3774 proven. 7068 refuted. 0 times theorem prover too weak. 3438 trivial. 0 not checked. [2023-11-29 07:06:33,926 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:12:04,080 WARN L249 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f537cbac-ebe4-41b1-acd0-e4c7b7039141/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) stderr output: (error "out of memory") [2023-11-29 07:12:04,080 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f537cbac-ebe4-41b1-acd0-e4c7b7039141/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 101 [2023-11-29 07:12:04,081 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2023-11-29 07:12:04,094 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f537cbac-ebe4-41b1-acd0-e4c7b7039141/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-29 07:12:04,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f537cbac-ebe4-41b1-acd0-e4c7b7039141/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-11-29 07:12:04,282 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f537cbac-ebe4-41b1-acd0-e4c7b7039141/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:281) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.checkSat(ManagedScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:85) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:950) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:789) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:377) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:326) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp$UnifyPostprocessor.postprocess(TraceCheckSpWp.java:579) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:399) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:271) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:341) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:184) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:110) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258) ... 46 more [2023-11-29 07:12:04,284 INFO L158 Benchmark]: Toolchain (without parser) took 662810.71ms. Allocated memory was 176.2MB in the beginning and 505.4MB in the end (delta: 329.3MB). Free memory was 142.8MB in the beginning and 266.9MB in the end (delta: -124.1MB). Peak memory consumption was 208.0MB. Max. memory is 16.1GB. [2023-11-29 07:12:04,285 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 176.2MB. Free memory is still 148.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 07:12:04,285 INFO L158 Benchmark]: CACSL2BoogieTranslator took 641.83ms. Allocated memory is still 176.2MB. Free memory was 142.8MB in the beginning and 79.9MB in the end (delta: 62.9MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. [2023-11-29 07:12:04,286 INFO L158 Benchmark]: Boogie Procedure Inliner took 250.88ms. Allocated memory is still 176.2MB. Free memory was 79.9MB in the beginning and 118.0MB in the end (delta: -38.2MB). Peak memory consumption was 40.5MB. Max. memory is 16.1GB. [2023-11-29 07:12:04,286 INFO L158 Benchmark]: Boogie Preprocessor took 216.29ms. Allocated memory is still 176.2MB. Free memory was 118.0MB in the beginning and 90.9MB in the end (delta: 27.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-11-29 07:12:04,287 INFO L158 Benchmark]: RCFGBuilder took 7923.03ms. Allocated memory was 176.2MB in the beginning and 237.0MB in the end (delta: 60.8MB). Free memory was 90.9MB in the beginning and 109.1MB in the end (delta: -18.2MB). Peak memory consumption was 69.6MB. Max. memory is 16.1GB. [2023-11-29 07:12:04,288 INFO L158 Benchmark]: TraceAbstraction took 653773.53ms. Allocated memory was 237.0MB in the beginning and 505.4MB in the end (delta: 268.4MB). Free memory was 109.1MB in the beginning and 266.9MB in the end (delta: -157.7MB). Peak memory consumption was 110.4MB. Max. memory is 16.1GB. [2023-11-29 07:12:04,290 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 176.2MB. Free memory is still 148.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 641.83ms. Allocated memory is still 176.2MB. Free memory was 142.8MB in the beginning and 79.9MB in the end (delta: 62.9MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 250.88ms. Allocated memory is still 176.2MB. Free memory was 79.9MB in the beginning and 118.0MB in the end (delta: -38.2MB). Peak memory consumption was 40.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 216.29ms. Allocated memory is still 176.2MB. Free memory was 118.0MB in the beginning and 90.9MB in the end (delta: 27.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * RCFGBuilder took 7923.03ms. Allocated memory was 176.2MB in the beginning and 237.0MB in the end (delta: 60.8MB). Free memory was 90.9MB in the beginning and 109.1MB in the end (delta: -18.2MB). Peak memory consumption was 69.6MB. Max. memory is 16.1GB. * TraceAbstraction took 653773.53ms. Allocated memory was 237.0MB in the beginning and 505.4MB in the end (delta: 268.4MB). Free memory was 109.1MB in the beginning and 266.9MB in the end (delta: -157.7MB). Peak memory consumption was 110.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 42]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"/tmp/aaaa/nxt.bug1.i","-S") [42] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f537cbac-ebe4-41b1-acd0-e4c7b7039141/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f537cbac-ebe4-41b1-acd0-e4c7b7039141/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f537cbac-ebe4-41b1-acd0-e4c7b7039141/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f537cbac-ebe4-41b1-acd0-e4c7b7039141/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_f537cbac-ebe4-41b1-acd0-e4c7b7039141/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f537cbac-ebe4-41b1-acd0-e4c7b7039141/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M1-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f537cbac-ebe4-41b1-acd0-e4c7b7039141/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f537cbac-ebe4-41b1-acd0-e4c7b7039141/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 f077881e7f4fa96e31e8798f1b4a7ec1ee00f86778c2b79845cdeaf2537e700e --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 07:12:05,967 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 07:12:06,036 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f537cbac-ebe4-41b1-acd0-e4c7b7039141/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-29 07:12:06,041 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 07:12:06,042 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 07:12:06,086 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 07:12:06,087 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 07:12:06,087 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 07:12:06,088 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 07:12:06,089 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 07:12:06,089 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 07:12:06,090 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 07:12:06,090 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 07:12:06,091 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 07:12:06,091 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 07:12:06,092 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 07:12:06,093 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 07:12:06,093 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 07:12:06,094 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 07:12:06,094 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 07:12:06,095 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 07:12:06,095 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 07:12:06,096 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 07:12:06,096 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 07:12:06,097 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-29 07:12:06,097 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-29 07:12:06,097 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 07:12:06,098 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 07:12:06,098 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 07:12:06,099 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 07:12:06,099 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 07:12:06,100 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 07:12:06,100 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 07:12:06,100 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 07:12:06,101 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 07:12:06,101 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 07:12:06,101 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 07:12:06,101 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-29 07:12:06,102 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-29 07:12:06,102 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 07:12:06,102 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 07:12:06,102 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 07:12:06,103 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 07:12:06,103 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 07:12:06,103 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-29 07:12:06,103 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_f537cbac-ebe4-41b1-acd0-e4c7b7039141/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f537cbac-ebe4-41b1-acd0-e4c7b7039141/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f077881e7f4fa96e31e8798f1b4a7ec1ee00f86778c2b79845cdeaf2537e700e [2023-11-29 07:12:06,376 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 07:12:06,397 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 07:12:06,400 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 07:12:06,401 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 07:12:06,401 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 07:12:06,403 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f537cbac-ebe4-41b1-acd0-e4c7b7039141/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M1-1.c [2023-11-29 07:12:09,159 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 07:12:09,442 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 07:12:09,442 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f537cbac-ebe4-41b1-acd0-e4c7b7039141/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M1-1.c [2023-11-29 07:12:09,463 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f537cbac-ebe4-41b1-acd0-e4c7b7039141/bin/uautomizer-verify-BQ2R08f2Ya/data/46538965e/125b62a815e247a286be9d09e7768ec2/FLAG892820be6 [2023-11-29 07:12:09,477 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f537cbac-ebe4-41b1-acd0-e4c7b7039141/bin/uautomizer-verify-BQ2R08f2Ya/data/46538965e/125b62a815e247a286be9d09e7768ec2 [2023-11-29 07:12:09,479 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 07:12:09,481 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 07:12:09,482 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 07:12:09,482 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 07:12:09,487 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 07:12:09,488 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:12:09" (1/1) ... [2023-11-29 07:12:09,489 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c931554 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:12:09, skipping insertion in model container [2023-11-29 07:12:09,489 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:12:09" (1/1) ... [2023-11-29 07:12:09,546 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 07:12:09,714 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_f537cbac-ebe4-41b1-acd0-e4c7b7039141/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M1-1.c[1674,1687] [2023-11-29 07:12:09,983 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 07:12:10,000 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 07:12:10,010 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"/tmp/aaaa/nxt.bug1.i","-S") [42] [2023-11-29 07:12:10,016 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_f537cbac-ebe4-41b1-acd0-e4c7b7039141/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M1-1.c[1674,1687] [2023-11-29 07:12:10,183 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 07:12:10,204 INFO L206 MainTranslator]: Completed translation [2023-11-29 07:12:10,205 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:12:10 WrapperNode [2023-11-29 07:12:10,205 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 07:12:10,206 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 07:12:10,206 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 07:12:10,206 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 07:12:10,211 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:12:10" (1/1) ... [2023-11-29 07:12:10,265 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:12:10" (1/1) ... [2023-11-29 07:12:10,376 INFO L138 Inliner]: procedures = 60, calls = 1672, calls flagged for inlining = 24, calls inlined = 24, statements flattened = 3801 [2023-11-29 07:12:10,376 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 07:12:10,377 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 07:12:10,378 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 07:12:10,378 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 07:12:10,386 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:12:10" (1/1) ... [2023-11-29 07:12:10,386 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:12:10" (1/1) ... [2023-11-29 07:12:10,403 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:12:10" (1/1) ... [2023-11-29 07:12:10,486 INFO L175 MemorySlicer]: Split 1232 memory accesses to 17 slices as follows [2, 241, 282, 156, 113, 79, 2, 57, 57, 79, 56, 79, 8, 2, 8, 7, 4]. 23 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 0, 0, 2, 2, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 2, 0]. The 181 writes are split as follows [0, 25, 25, 2, 2, 1, 1, 1, 29, 27, 29, 27, 4, 1, 4, 3, 0]. [2023-11-29 07:12:10,487 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:12:10" (1/1) ... [2023-11-29 07:12:10,487 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:12:10" (1/1) ... [2023-11-29 07:12:10,558 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:12:10" (1/1) ... [2023-11-29 07:12:10,573 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:12:10" (1/1) ... [2023-11-29 07:12:10,587 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:12:10" (1/1) ... [2023-11-29 07:12:10,598 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:12:10" (1/1) ... [2023-11-29 07:12:10,617 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 07:12:10,618 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 07:12:10,618 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 07:12:10,618 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 07:12:10,619 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:12:10" (1/1) ... [2023-11-29 07:12:10,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 07:12:10,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f537cbac-ebe4-41b1-acd0-e4c7b7039141/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:12:10,650 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f537cbac-ebe4-41b1-acd0-e4c7b7039141/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 07:12:10,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f537cbac-ebe4-41b1-acd0-e4c7b7039141/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 07:12:10,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 07:12:10,679 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2023-11-29 07:12:10,680 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2023-11-29 07:12:10,680 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2023-11-29 07:12:10,680 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2023-11-29 07:12:10,680 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2023-11-29 07:12:10,680 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2023-11-29 07:12:10,681 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4 [2023-11-29 07:12:10,681 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#5 [2023-11-29 07:12:10,681 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#6 [2023-11-29 07:12:10,681 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#7 [2023-11-29 07:12:10,681 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#8 [2023-11-29 07:12:10,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#9 [2023-11-29 07:12:10,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#10 [2023-11-29 07:12:10,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#11 [2023-11-29 07:12:10,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#12 [2023-11-29 07:12:10,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#13 [2023-11-29 07:12:10,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#14 [2023-11-29 07:12:10,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#15 [2023-11-29 07:12:10,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#16 [2023-11-29 07:12:10,683 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2023-11-29 07:12:10,683 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2023-11-29 07:12:10,683 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 07:12:10,683 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2023-11-29 07:12:10,683 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2023-11-29 07:12:10,683 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2023-11-29 07:12:10,684 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2023-11-29 07:12:10,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-29 07:12:10,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-29 07:12:10,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-11-29 07:12:10,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-11-29 07:12:10,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2023-11-29 07:12:10,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2023-11-29 07:12:10,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2023-11-29 07:12:10,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2023-11-29 07:12:10,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#8 [2023-11-29 07:12:10,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#9 [2023-11-29 07:12:10,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#10 [2023-11-29 07:12:10,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#11 [2023-11-29 07:12:10,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#12 [2023-11-29 07:12:10,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#13 [2023-11-29 07:12:10,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#14 [2023-11-29 07:12:10,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#15 [2023-11-29 07:12:10,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#16 [2023-11-29 07:12:10,686 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2023-11-29 07:12:10,686 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2023-11-29 07:12:10,686 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2023-11-29 07:12:10,686 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2023-11-29 07:12:10,686 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2023-11-29 07:12:10,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2023-11-29 07:12:10,687 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2023-11-29 07:12:10,687 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2023-11-29 07:12:10,687 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2023-11-29 07:12:10,687 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2023-11-29 07:12:10,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2023-11-29 07:12:10,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2023-11-29 07:12:10,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2 [2023-11-29 07:12:10,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#3 [2023-11-29 07:12:10,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#4 [2023-11-29 07:12:10,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#5 [2023-11-29 07:12:10,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#6 [2023-11-29 07:12:10,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#7 [2023-11-29 07:12:10,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#8 [2023-11-29 07:12:10,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#9 [2023-11-29 07:12:10,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#10 [2023-11-29 07:12:10,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#11 [2023-11-29 07:12:10,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#12 [2023-11-29 07:12:10,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#13 [2023-11-29 07:12:10,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#14 [2023-11-29 07:12:10,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#15 [2023-11-29 07:12:10,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#16 [2023-11-29 07:12:10,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 07:12:10,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-29 07:12:10,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-29 07:12:10,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-11-29 07:12:10,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-11-29 07:12:10,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2023-11-29 07:12:10,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2023-11-29 07:12:10,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2023-11-29 07:12:10,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#7 [2023-11-29 07:12:10,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#8 [2023-11-29 07:12:10,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#9 [2023-11-29 07:12:10,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#10 [2023-11-29 07:12:10,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#11 [2023-11-29 07:12:10,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#12 [2023-11-29 07:12:10,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#13 [2023-11-29 07:12:10,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#14 [2023-11-29 07:12:10,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#15 [2023-11-29 07:12:10,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#16 [2023-11-29 07:12:10,716 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2023-11-29 07:12:10,716 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2023-11-29 07:12:10,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-29 07:12:10,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-29 07:12:10,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-11-29 07:12:10,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-11-29 07:12:10,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-11-29 07:12:10,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2023-11-29 07:12:10,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2023-11-29 07:12:10,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2023-11-29 07:12:10,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2023-11-29 07:12:10,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2023-11-29 07:12:10,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2023-11-29 07:12:10,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11 [2023-11-29 07:12:10,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#12 [2023-11-29 07:12:10,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#13 [2023-11-29 07:12:10,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#14 [2023-11-29 07:12:10,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#15 [2023-11-29 07:12:10,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#16 [2023-11-29 07:12:10,719 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2023-11-29 07:12:10,719 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2023-11-29 07:12:10,719 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 07:12:10,719 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 07:12:10,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 07:12:10,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 07:12:10,719 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2023-11-29 07:12:10,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2023-11-29 07:12:10,720 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2023-11-29 07:12:10,720 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2023-11-29 07:12:10,720 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2023-11-29 07:12:10,720 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2023-11-29 07:12:11,091 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 07:12:11,094 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 07:12:30,733 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 07:12:30,870 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 07:12:30,870 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 07:12:30,871 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:12:30 BoogieIcfgContainer [2023-11-29 07:12:30,871 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 07:12:30,874 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 07:12:30,874 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 07:12:30,877 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 07:12:30,877 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 07:12:09" (1/3) ... [2023-11-29 07:12:30,878 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26ac9e26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:12:30, skipping insertion in model container [2023-11-29 07:12:30,878 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:12:10" (2/3) ... [2023-11-29 07:12:30,878 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26ac9e26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:12:30, skipping insertion in model container [2023-11-29 07:12:30,878 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:12:30" (3/3) ... [2023-11-29 07:12:30,880 INFO L112 eAbstractionObserver]: Analyzing ICFG rekcba_nxt.1.M1-1.c [2023-11-29 07:12:30,898 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 07:12:30,898 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 07:12:30,982 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 07:12:30,988 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;@180a20b1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 07:12:30,988 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 07:12:30,998 INFO L276 IsEmpty]: Start isEmpty. Operand has 1105 states, 696 states have (on average 1.3031609195402298) internal successors, (907), 728 states have internal predecessors, (907), 392 states have call successors, (392), 15 states have call predecessors, (392), 15 states have return successors, (392), 390 states have call predecessors, (392), 392 states have call successors, (392) [2023-11-29 07:12:31,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 717 [2023-11-29 07:12:31,058 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:12:31,060 INFO L195 NwaCegarLoop]: trace histogram [85, 85, 85, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:12:31,060 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 07:12:31,065 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:12:31,066 INFO L85 PathProgramCache]: Analyzing trace with hash -2126939357, now seen corresponding path program 1 times [2023-11-29 07:12:31,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:12:31,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1789733124] [2023-11-29 07:12:31,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:12:31,086 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:12:31,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f537cbac-ebe4-41b1-acd0-e4c7b7039141/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:12:31,104 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f537cbac-ebe4-41b1-acd0-e4c7b7039141/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 07:12:31,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f537cbac-ebe4-41b1-acd0-e4c7b7039141/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-29 07:12:32,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:12:32,791 INFO L262 TraceCheckSpWp]: Trace formula consists of 1394 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 07:12:32,826 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:12:32,925 INFO L134 CoverageAnalysis]: Checked inductivity of 14280 backedges. 7080 proven. 0 refuted. 0 times theorem prover too weak. 7200 trivial. 0 not checked. [2023-11-29 07:12:32,925 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:12:32,926 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:12:32,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1789733124] [2023-11-29 07:12:32,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1789733124] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:12:32,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:12:32,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 07:12:32,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47629248] [2023-11-29 07:12:32,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:12:32,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 07:12:32,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:12:32,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 07:12:32,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 07:12:32,966 INFO L87 Difference]: Start difference. First operand has 1105 states, 696 states have (on average 1.3031609195402298) internal successors, (907), 728 states have internal predecessors, (907), 392 states have call successors, (392), 15 states have call predecessors, (392), 15 states have return successors, (392), 390 states have call predecessors, (392), 392 states have call successors, (392) Second operand has 2 states, 2 states have (on average 149.0) internal successors, (298), 2 states have internal predecessors, (298), 2 states have call successors, (85), 2 states have call predecessors, (85), 2 states have return successors, (85), 2 states have call predecessors, (85), 2 states have call successors, (85) [2023-11-29 07:12:36,034 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:12:40,439 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 07:12:40,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:12:40,537 INFO L93 Difference]: Finished difference Result 2208 states and 3755 transitions. [2023-11-29 07:12:40,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 07:12:40,539 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 149.0) internal successors, (298), 2 states have internal predecessors, (298), 2 states have call successors, (85), 2 states have call predecessors, (85), 2 states have return successors, (85), 2 states have call predecessors, (85), 2 states have call successors, (85) Word has length 716 [2023-11-29 07:12:40,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:12:40,562 INFO L225 Difference]: With dead ends: 2208 [2023-11-29 07:12:40,562 INFO L226 Difference]: Without dead ends: 1102 [2023-11-29 07:12:40,574 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 715 GetRequests, 715 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 07:12:40,578 INFO L413 NwaCegarLoop]: 1663 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1663 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2023-11-29 07:12:40,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1663 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 1 Unknown, 0 Unchecked, 7.4s Time] [2023-11-29 07:12:40,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1102 states. [2023-11-29 07:12:40,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1102 to 1102. [2023-11-29 07:12:40,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1102 states, 694 states have (on average 1.2968299711815563) internal successors, (900), 725 states have internal predecessors, (900), 392 states have call successors, (392), 15 states have call predecessors, (392), 15 states have return successors, (392), 390 states have call predecessors, (392), 392 states have call successors, (392) [2023-11-29 07:12:40,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1102 states to 1102 states and 1684 transitions. [2023-11-29 07:12:40,849 INFO L78 Accepts]: Start accepts. Automaton has 1102 states and 1684 transitions. Word has length 716 [2023-11-29 07:12:40,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:12:40,850 INFO L495 AbstractCegarLoop]: Abstraction has 1102 states and 1684 transitions. [2023-11-29 07:12:40,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 149.0) internal successors, (298), 2 states have internal predecessors, (298), 2 states have call successors, (85), 2 states have call predecessors, (85), 2 states have return successors, (85), 2 states have call predecessors, (85), 2 states have call successors, (85) [2023-11-29 07:12:40,851 INFO L276 IsEmpty]: Start isEmpty. Operand 1102 states and 1684 transitions. [2023-11-29 07:12:40,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 717 [2023-11-29 07:12:40,894 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:12:40,895 INFO L195 NwaCegarLoop]: trace histogram [85, 85, 85, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:12:40,922 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f537cbac-ebe4-41b1-acd0-e4c7b7039141/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-29 07:12:41,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f537cbac-ebe4-41b1-acd0-e4c7b7039141/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:12:41,112 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 07:12:41,112 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:12:41,113 INFO L85 PathProgramCache]: Analyzing trace with hash -1537865779, now seen corresponding path program 1 times [2023-11-29 07:12:41,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:12:41,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1316954031] [2023-11-29 07:12:41,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:12:41,115 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:12:41,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f537cbac-ebe4-41b1-acd0-e4c7b7039141/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:12:41,118 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f537cbac-ebe4-41b1-acd0-e4c7b7039141/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 07:12:41,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f537cbac-ebe4-41b1-acd0-e4c7b7039141/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-29 07:12:42,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:12:42,460 INFO L262 TraceCheckSpWp]: Trace formula consists of 1394 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 07:12:42,489 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:12:43,435 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 233 treesize of output 172 [2023-11-29 07:12:45,458 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 07:12:45,459 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 14 select indices, 14 select index equivalence classes, 0 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 91 case distinctions, treesize of input 182 treesize of output 94 [2023-11-29 07:12:54,348 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2023-11-29 07:12:54,550 INFO L134 CoverageAnalysis]: Checked inductivity of 14280 backedges. 7679 proven. 165 refuted. 0 times theorem prover too weak. 6436 trivial. 0 not checked. [2023-11-29 07:12:54,550 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:12:58,659 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2023-11-29 07:12:59,102 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:12:59,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1316954031] [2023-11-29 07:12:59,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1316954031] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:12:59,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [865410178] [2023-11-29 07:12:59,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:12:59,103 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-29 07:12:59,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f537cbac-ebe4-41b1-acd0-e4c7b7039141/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-29 07:12:59,105 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f537cbac-ebe4-41b1-acd0-e4c7b7039141/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-29 07:12:59,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f537cbac-ebe4-41b1-acd0-e4c7b7039141/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-29 07:13:00,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:13:00,819 INFO L262 TraceCheckSpWp]: Trace formula consists of 1394 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 07:13:00,833 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:13:01,430 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2023-11-29 07:13:13,848 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2023-11-29 07:13:14,068 INFO L134 CoverageAnalysis]: Checked inductivity of 14280 backedges. 7050 proven. 180 refuted. 0 times theorem prover too weak. 7050 trivial. 0 not checked. [2023-11-29 07:13:14,068 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:13:17,495 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2023-11-29 07:13:18,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [865410178] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:13:18,059 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:13:18,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 12 [2023-11-29 07:13:18,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897931341] [2023-11-29 07:13:18,061 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:13:18,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 07:13:18,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:13:18,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 07:13:18,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=548, Unknown=0, NotChecked=0, Total=650 [2023-11-29 07:13:18,067 INFO L87 Difference]: Start difference. First operand 1102 states and 1684 transitions. Second operand has 13 states, 10 states have (on average 54.3) internal successors, (543), 11 states have internal predecessors, (543), 8 states have call successors, (117), 5 states have call predecessors, (117), 6 states have return successors, (117), 6 states have call predecessors, (117), 8 states have call successors, (117) [2023-11-29 07:13:56,393 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 07:13:57,567 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 07:13:59,316 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 07:14:02,300 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 07:14:04,352 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 07:14:06,532 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 07:15:08,072 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]