/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded/rekh_nxt.1.M4-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 01:22:51,727 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 01:22:51,728 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 01:22:51,776 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-10 01:22:51,807 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 01:22:51,809 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 01:22:51,810 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 01:22:51,812 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 01:22:51,813 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 01:22:51,813 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 01:22:51,815 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 01:22:51,819 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 01:22:51,820 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 01:22:51,821 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 01:22:51,822 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 01:22:51,822 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 01:22:51,827 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-10 01:22:51,849 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 01:22:51,850 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 01:22:51,850 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 01:22:51,851 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Default.epf [2022-01-10 01:22:51,887 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 01:22:51,887 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 01:22:51,888 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 01:22:51,888 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 01:22:51,888 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-10 01:22:51,889 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-10 01:22:51,889 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 01:22:51,889 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 01:22:51,889 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 01:22:51,889 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 01:22:51,890 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 01:22:51,890 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 01:22:51,890 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 01:22:51,890 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 01:22:51,890 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 01:22:51,890 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 01:22:51,890 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 01:22:51,890 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 01:22:51,891 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 01:22:51,891 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 01:22:51,891 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 01:22:51,891 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 01:22:51,891 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 01:22:51,891 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 01:22:51,892 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 01:22:51,892 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 01:22:51,892 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 01:22:51,892 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 01:22:51,892 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 01:22:51,892 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 01:22:51,892 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 01:22:52,190 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 01:22:52,220 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 01:22:52,222 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 01:22:52,223 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 01:22:52,232 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 01:22:52,233 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/rekh_nxt.1.M4-1.c [2022-01-10 01:22:52,340 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/327a8ce22/9dd1585eee524e2aa68a6841c856a40b/FLAG56dd2ded8 [2022-01-10 01:22:52,860 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 01:22:52,860 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/rekh_nxt.1.M4-1.c [2022-01-10 01:22:52,873 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/327a8ce22/9dd1585eee524e2aa68a6841c856a40b/FLAG56dd2ded8 [2022-01-10 01:22:53,283 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/327a8ce22/9dd1585eee524e2aa68a6841c856a40b [2022-01-10 01:22:53,287 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 01:22:53,289 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-10 01:22:53,290 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 01:22:53,290 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 01:22:53,293 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 01:22:53,293 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 01:22:53" (1/1) ... [2022-01-10 01:22:53,294 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c62a583 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:22:53, skipping insertion in model container [2022-01-10 01:22:53,294 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 01:22:53" (1/1) ... [2022-01-10 01:22:53,298 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 01:22:53,369 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 01:22:53,510 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/rekh_nxt.1.M4-1.c[1510,1523] [2022-01-10 01:22:53,776 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 01:22:53,797 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 01:22:53,820 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/rekh_nxt.1.M4-1.c[1510,1523] [2022-01-10 01:22:53,972 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 01:22:53,996 INFO L208 MainTranslator]: Completed translation [2022-01-10 01:22:53,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:22:53 WrapperNode [2022-01-10 01:22:53,997 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 01:22:53,998 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 01:22:53,999 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 01:22:53,999 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 01:22:54,004 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:22:53" (1/1) ... [2022-01-10 01:22:54,052 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:22:53" (1/1) ... [2022-01-10 01:22:54,186 INFO L137 Inliner]: procedures = 55, calls = 2262, calls flagged for inlining = 21, calls inlined = 21, statements flattened = 4176 [2022-01-10 01:22:54,186 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 01:22:54,187 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 01:22:54,187 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 01:22:54,187 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 01:22:54,193 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:22:53" (1/1) ... [2022-01-10 01:22:54,193 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:22:53" (1/1) ... [2022-01-10 01:22:54,208 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:22:53" (1/1) ... [2022-01-10 01:22:54,208 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:22:53" (1/1) ... [2022-01-10 01:22:54,266 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:22:53" (1/1) ... [2022-01-10 01:22:54,275 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:22:53" (1/1) ... [2022-01-10 01:22:54,282 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:22:53" (1/1) ... [2022-01-10 01:22:54,294 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 01:22:54,295 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 01:22:54,295 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 01:22:54,295 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 01:22:54,295 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:22:53" (1/1) ... [2022-01-10 01:22:54,300 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 01:22:54,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 01:22:54,322 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) [2022-01-10 01:22:54,328 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 [2022-01-10 01:22:54,357 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 01:22:54,358 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-01-10 01:22:54,358 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-01-10 01:22:54,358 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2022-01-10 01:22:54,359 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2022-01-10 01:22:54,359 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-10 01:22:54,359 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-01-10 01:22:54,359 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-01-10 01:22:54,359 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-01-10 01:22:54,359 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-01-10 01:22:54,359 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2022-01-10 01:22:54,359 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2022-01-10 01:22:54,359 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-10 01:22:54,359 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-01-10 01:22:54,359 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-01-10 01:22:54,359 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2022-01-10 01:22:54,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2022-01-10 01:22:54,359 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-01-10 01:22:54,360 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-01-10 01:22:54,360 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-01-10 01:22:54,360 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-01-10 01:22:54,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-10 01:22:54,360 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2022-01-10 01:22:54,360 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2022-01-10 01:22:54,360 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2022-01-10 01:22:54,360 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2022-01-10 01:22:54,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-10 01:22:54,360 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2022-01-10 01:22:54,360 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2022-01-10 01:22:54,360 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-01-10 01:22:54,360 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-01-10 01:22:54,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-10 01:22:54,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 01:22:54,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 01:22:54,361 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2022-01-10 01:22:54,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2022-01-10 01:22:54,361 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-01-10 01:22:54,361 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-01-10 01:22:54,361 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2022-01-10 01:22:54,361 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2022-01-10 01:22:54,806 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 01:22:54,807 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 01:23:01,173 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 01:23:01,225 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 01:23:01,226 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 01:23:01,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:23:01 BoogieIcfgContainer [2022-01-10 01:23:01,243 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 01:23:01,244 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 01:23:01,244 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 01:23:01,247 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 01:23:01,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 01:22:53" (1/3) ... [2022-01-10 01:23:01,248 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c16fa36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 01:23:01, skipping insertion in model container [2022-01-10 01:23:01,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:22:53" (2/3) ... [2022-01-10 01:23:01,248 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c16fa36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 01:23:01, skipping insertion in model container [2022-01-10 01:23:01,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:23:01" (3/3) ... [2022-01-10 01:23:01,249 INFO L111 eAbstractionObserver]: Analyzing ICFG rekh_nxt.1.M4-1.c [2022-01-10 01:23:01,252 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 01:23:01,252 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 01:23:01,287 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 01:23:01,295 INFO L339 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=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, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 01:23:01,295 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 01:23:01,345 INFO L276 IsEmpty]: Start isEmpty. Operand has 1603 states, 972 states have (on average 1.228395061728395) internal successors, (1194), 977 states have internal predecessors, (1194), 613 states have call successors, (613), 16 states have call predecessors, (613), 16 states have return successors, (613), 611 states have call predecessors, (613), 613 states have call successors, (613) [2022-01-10 01:23:01,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8483 [2022-01-10 01:23:01,797 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:23:01,800 INFO L514 BasicCegarLoop]: trace histogram [964, 964, 964, 108, 108, 108, 108, 108, 108, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 01:23:01,801 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 01:23:01,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:23:01,806 INFO L85 PathProgramCache]: Analyzing trace with hash -767459317, now seen corresponding path program 1 times [2022-01-10 01:23:01,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:23:01,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175671796] [2022-01-10 01:23:01,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:23:01,814 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms