/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/seq-mthreaded/rekcba_aso.1.M4-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 15:29:42,332 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 15:29:42,337 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 15:29:42,413 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 15:29:42,414 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 15:29:42,415 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 15:29:42,417 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 15:29:42,419 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 15:29:42,422 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 15:29:42,423 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 15:29:42,424 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 15:29:42,426 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 15:29:42,426 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 15:29:42,428 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 15:29:42,429 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 15:29:42,430 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 15:29:42,432 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 15:29:42,433 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 15:29:42,435 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 15:29:42,437 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 15:29:42,439 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 15:29:42,441 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 15:29:42,443 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 15:29:42,444 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 15:29:42,449 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 15:29:42,449 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 15:29:42,449 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 15:29:42,451 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 15:29:42,451 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 15:29:42,453 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 15:29:42,453 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 15:29:42,454 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 15:29:42,455 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 15:29:42,456 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 15:29:42,457 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 15:29:42,458 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 15:29:42,459 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 15:29:42,459 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 15:29:42,459 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 15:29:42,461 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 15:29:42,461 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 15:29:42,463 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 15:29:42,492 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 15:29:42,493 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 15:29:42,493 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 15:29:42,494 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 15:29:42,495 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 15:29:42,495 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 15:29:42,496 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 15:29:42,496 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 15:29:42,496 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 15:29:42,497 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 15:29:42,497 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 15:29:42,497 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 15:29:42,497 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 15:29:42,498 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 15:29:42,498 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 15:29:42,498 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 15:29:42,498 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 15:29:42,499 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 15:29:42,499 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 15:29:42,499 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 15:29:42,499 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 15:29:42,500 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 15:29:42,500 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 15:29:42,500 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 15:29:42,501 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 15:29:42,501 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 15:29:42,501 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 15:29:42,501 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 15:29:42,502 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 15:29:42,502 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 15:29:42,502 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 15:29:42,502 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 15:29:42,502 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 15:29:42,503 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 15:29:42,927 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 15:29:42,961 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 15:29:42,965 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 15:29:42,966 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 15:29:42,968 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 15:29:42,971 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekcba_aso.1.M4-2.c [2022-10-16 15:29:43,058 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04d87ec06/adf7abee9f4346aba15493a80fd7ca28/FLAG47e4adb92 [2022-10-16 15:29:44,088 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 15:29:44,089 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekcba_aso.1.M4-2.c [2022-10-16 15:29:44,153 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04d87ec06/adf7abee9f4346aba15493a80fd7ca28/FLAG47e4adb92 [2022-10-16 15:29:44,497 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04d87ec06/adf7abee9f4346aba15493a80fd7ca28 [2022-10-16 15:29:44,501 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 15:29:44,507 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 15:29:44,508 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 15:29:44,509 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 15:29:44,513 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 15:29:44,514 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:29:44" (1/1) ... [2022-10-16 15:29:44,515 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33794fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:29:44, skipping insertion in model container [2022-10-16 15:29:44,516 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:29:44" (1/1) ... [2022-10-16 15:29:44,525 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 15:29:44,828 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 15:29:45,153 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekcba_aso.1.M4-2.c[2232,2245] [2022-10-16 15:29:46,718 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 15:29:46,751 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 15:29:46,782 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekcba_aso.1.M4-2.c[2232,2245] [2022-10-16 15:29:47,915 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 15:29:47,963 INFO L208 MainTranslator]: Completed translation [2022-10-16 15:29:47,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:29:47 WrapperNode [2022-10-16 15:29:47,964 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 15:29:47,965 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 15:29:47,966 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 15:29:47,966 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 15:29:47,975 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:29:47" (1/1) ... [2022-10-16 15:29:48,544 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:29:47" (1/1) ... [2022-10-16 15:29:50,748 INFO L138 Inliner]: procedures = 60, calls = 19341, calls flagged for inlining = 21, calls inlined = 21, statements flattened = 42179 [2022-10-16 15:29:50,749 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 15:29:50,750 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 15:29:50,750 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 15:29:50,750 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 15:29:50,763 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:29:47" (1/1) ... [2022-10-16 15:29:50,763 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:29:47" (1/1) ... [2022-10-16 15:29:51,283 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:29:47" (1/1) ... [2022-10-16 15:29:51,287 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:29:47" (1/1) ... [2022-10-16 15:29:52,332 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:29:47" (1/1) ... [2022-10-16 15:29:52,533 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:29:47" (1/1) ... [2022-10-16 15:29:52,622 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:29:47" (1/1) ... [2022-10-16 15:29:52,686 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:29:47" (1/1) ... [2022-10-16 15:29:52,917 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 15:29:52,918 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 15:29:52,919 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 15:29:52,919 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 15:29:52,920 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:29:47" (1/1) ... [2022-10-16 15:29:52,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 15:29:52,941 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 15:29:52,964 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 15:29:52,989 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 15:29:53,036 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 15:29:53,036 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2022-10-16 15:29:53,037 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2022-10-16 15:29:53,037 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-10-16 15:29:53,037 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-10-16 15:29:53,037 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2022-10-16 15:29:53,037 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2022-10-16 15:29:53,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 15:29:53,038 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-10-16 15:29:53,038 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-10-16 15:29:53,038 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-10-16 15:29:53,038 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-10-16 15:29:53,038 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2022-10-16 15:29:53,038 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2022-10-16 15:29:53,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 15:29:53,039 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-10-16 15:29:53,039 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-10-16 15:29:53,039 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2022-10-16 15:29:53,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2022-10-16 15:29:53,039 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2022-10-16 15:29:53,039 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2022-10-16 15:29:53,039 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-10-16 15:29:53,040 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-10-16 15:29:53,040 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-10-16 15:29:53,040 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-10-16 15:29:53,040 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-10-16 15:29:53,040 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-10-16 15:29:53,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 15:29:53,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 15:29:53,041 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-10-16 15:29:53,041 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-10-16 15:29:53,041 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2022-10-16 15:29:53,041 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2022-10-16 15:29:53,041 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2022-10-16 15:29:53,041 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2022-10-16 15:29:53,041 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2022-10-16 15:29:53,042 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2022-10-16 15:29:53,042 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-16 15:29:53,042 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-16 15:29:53,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 15:29:53,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 15:29:53,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 15:29:53,042 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2022-10-16 15:29:53,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2022-10-16 15:29:53,043 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-10-16 15:29:53,043 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-10-16 15:29:53,043 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2022-10-16 15:29:53,043 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2022-10-16 15:29:53,043 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2022-10-16 15:29:53,043 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2022-10-16 15:29:54,831 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 15:29:54,834 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 15:32:05,547 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 15:32:05,722 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 15:32:05,723 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-16 15:32:05,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:32:05 BoogieIcfgContainer [2022-10-16 15:32:05,738 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 15:32:05,740 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 15:32:05,740 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 15:32:05,744 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 15:32:05,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 03:29:44" (1/3) ... [2022-10-16 15:32:05,745 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42d46d83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:32:05, skipping insertion in model container [2022-10-16 15:32:05,746 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:29:47" (2/3) ... [2022-10-16 15:32:05,746 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42d46d83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:32:05, skipping insertion in model container [2022-10-16 15:32:05,746 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:32:05" (3/3) ... [2022-10-16 15:32:05,748 INFO L112 eAbstractionObserver]: Analyzing ICFG rekcba_aso.1.M4-2.c [2022-10-16 15:32:05,769 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 15:32:05,769 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 222 error locations. [2022-10-16 15:32:06,076 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 15:32:06,085 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@6c6eee06, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 15:32:06,086 INFO L358 AbstractCegarLoop]: Starting to check reachability of 222 error locations. [2022-10-16 15:32:06,134 INFO L276 IsEmpty]: Start isEmpty. Operand has 13081 states, 8429 states have (on average 1.3279155297188279) internal successors, (11193), 8763 states have internal predecessors, (11193), 4408 states have call successors, (4408), 21 states have call predecessors, (4408), 21 states have return successors, (4408), 4406 states have call predecessors, (4408), 4408 states have call successors, (4408) [2022-10-16 15:32:06,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-10-16 15:32:06,145 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:32:06,145 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 15:32:06,146 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [__startrek_entry_pt_OSEK_Task_ts1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, __startrek_entry_pt_OSEK_Task_ts1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 220 more)] === [2022-10-16 15:32:06,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:32:06,152 INFO L85 PathProgramCache]: Analyzing trace with hash -2037644322, now seen corresponding path program 1 times [2022-10-16 15:32:06,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:32:06,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521018089] [2022-10-16 15:32:06,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:32:06,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 15:32:06,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:32:07,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 15:32:07,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:32:07,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 15:32:07,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:32:07,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 15:32:07,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:32:07,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-16 15:32:07,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:32:07,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-10-16 15:32:07,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:32:07,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 15:32:07,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:32:07,101 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-10-16 15:32:07,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 15:32:07,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521018089] [2022-10-16 15:32:07,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521018089] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 15:32:07,104 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 15:32:07,104 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 15:32:07,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89431770] [2022-10-16 15:32:07,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 15:32:07,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-16 15:32:07,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 15:32:07,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-16 15:32:07,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 15:32:07,206 INFO L87 Difference]: Start difference. First operand has 13081 states, 8429 states have (on average 1.3279155297188279) internal successors, (11193), 8763 states have internal predecessors, (11193), 4408 states have call successors, (4408), 21 states have call predecessors, (4408), 21 states have return successors, (4408), 4406 states have call predecessors, (4408), 4408 states have call successors, (4408) Second operand has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2022-10-16 15:32:08,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 15:32:08,068 INFO L93 Difference]: Finished difference Result 25945 states and 44400 transitions. [2022-10-16 15:32:08,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-16 15:32:08,073 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) Word has length 41 [2022-10-16 15:32:08,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 15:32:08,216 INFO L225 Difference]: With dead ends: 25945 [2022-10-16 15:32:08,217 INFO L226 Difference]: Without dead ends: 11781 [2022-10-16 15:32:08,334 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 15:32:08,339 INFO L413 NwaCegarLoop]: 19794 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19794 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 15:32:08,342 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19794 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 15:32:08,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11781 states. [2022-10-16 15:32:16,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11781 to 11781. [2022-10-16 15:32:16,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11781 states, 7880 states have (on average 1.323223350253807) internal successors, (10427), 8001 states have internal predecessors, (10427), 3871 states have call successors, (3871), 20 states have call predecessors, (3871), 20 states have return successors, (3870), 3868 states have call predecessors, (3870), 3870 states have call successors, (3870) [2022-10-16 15:32:16,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11781 states to 11781 states and 18168 transitions. [2022-10-16 15:32:16,971 INFO L78 Accepts]: Start accepts. Automaton has 11781 states and 18168 transitions. Word has length 41 [2022-10-16 15:32:16,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 15:32:16,976 INFO L495 AbstractCegarLoop]: Abstraction has 11781 states and 18168 transitions. [2022-10-16 15:32:16,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2022-10-16 15:32:16,984 INFO L276 IsEmpty]: Start isEmpty. Operand 11781 states and 18168 transitions. [2022-10-16 15:32:17,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3341 [2022-10-16 15:32:17,379 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:32:17,382 INFO L195 NwaCegarLoop]: trace histogram [123, 123, 123, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 15:32:17,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 15:32:17,382 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __startrek_entry_pt_OSEK_Task_ts3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [__startrek_entry_pt_OSEK_Task_ts1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, __startrek_entry_pt_OSEK_Task_ts1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 220 more)] === [2022-10-16 15:32:17,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:32:17,384 INFO L85 PathProgramCache]: Analyzing trace with hash 1288905843, now seen corresponding path program 1 times [2022-10-16 15:32:17,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:32:17,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233738424] [2022-10-16 15:32:17,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:32:17,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms