/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/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/ldv-regression/stateful_check.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 00:52:11,621 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 00:52:11,625 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 00:52:11,671 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-07 00:52:11,672 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-07 00:52:11,673 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-07 00:52:11,675 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-07 00:52:11,678 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-07 00:52:11,696 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-07 00:52:11,701 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-07 00:52:11,703 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-07 00:52:11,704 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-07 00:52:11,705 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 00:52:11,706 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 00:52:11,708 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 00:52:11,709 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 00:52:11,710 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 00:52:11,712 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 00:52:11,714 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 00:52:11,717 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 00:52:11,719 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 00:52:11,721 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 00:52:11,723 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 00:52:11,724 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 00:52:11,728 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-07 00:52:11,728 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-07 00:52:11,728 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-07 00:52:11,730 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-07 00:52:11,731 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-07 00:52:11,732 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-07 00:52:11,732 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-07 00:52:11,734 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-07 00:52:11,735 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-07 00:52:11,736 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-07 00:52:11,738 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-07 00:52:11,738 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-07 00:52:11,739 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-07 00:52:11,739 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-07 00:52:11,740 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 00:52:11,741 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 00:52:11,742 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 00:52:11,743 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-11-07 00:52:11,757 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 00:52:11,758 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 00:52:11,761 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 00:52:11,761 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 00:52:11,761 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 00:52:11,762 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 00:52:11,762 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 00:52:11,762 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 00:52:11,762 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 00:52:11,762 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 00:52:11,763 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 00:52:11,763 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 00:52:11,765 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 00:52:11,765 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 00:52:11,766 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 00:52:11,766 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 00:52:11,766 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 00:52:11,766 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 00:52:11,767 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 00:52:11,767 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 00:52:11,767 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 00:52:11,767 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 00:52:11,768 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-07 00:52:12,224 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 00:52:12,270 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 00:52:12,274 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 00:52:12,275 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 00:52:12,276 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 00:52:12,277 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/stateful_check.c [2020-11-07 00:52:12,367 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7cf759d9c/81e0db1846f8496b9cf628c7c0e2e0fd/FLAG9d3155b1c [2020-11-07 00:52:13,150 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 00:52:13,151 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/stateful_check.c [2020-11-07 00:52:13,162 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7cf759d9c/81e0db1846f8496b9cf628c7c0e2e0fd/FLAG9d3155b1c [2020-11-07 00:52:13,454 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7cf759d9c/81e0db1846f8496b9cf628c7c0e2e0fd [2020-11-07 00:52:13,459 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 00:52:13,470 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 00:52:13,475 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 00:52:13,475 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 00:52:13,480 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 00:52:13,481 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:52:13" (1/1) ... [2020-11-07 00:52:13,486 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72bc405d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:52:13, skipping insertion in model container [2020-11-07 00:52:13,486 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:52:13" (1/1) ... [2020-11-07 00:52:13,496 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 00:52:13,523 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 00:52:13,726 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:52:13,748 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 00:52:13,802 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:52:13,835 INFO L208 MainTranslator]: Completed translation [2020-11-07 00:52:13,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:52:13 WrapperNode [2020-11-07 00:52:13,836 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 00:52:13,841 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 00:52:13,841 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 00:52:13,842 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 00:52:13,857 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:52:13" (1/1) ... [2020-11-07 00:52:13,858 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:52:13" (1/1) ... [2020-11-07 00:52:13,871 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:52:13" (1/1) ... [2020-11-07 00:52:13,872 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:52:13" (1/1) ... [2020-11-07 00:52:13,895 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:52:13" (1/1) ... [2020-11-07 00:52:13,908 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:52:13" (1/1) ... [2020-11-07 00:52:13,914 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:52:13" (1/1) ... [2020-11-07 00:52:13,921 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 00:52:13,925 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 00:52:13,926 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 00:52:13,926 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 00:52:13,927 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:52:13" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 00:52:14,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 00:52:14,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 00:52:14,010 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 00:52:14,010 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-11-07 00:52:14,010 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2020-11-07 00:52:14,011 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-11-07 00:52:14,011 INFO L138 BoogieDeclarations]: Found implementation of procedure check_final_state [2020-11-07 00:52:14,011 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_release [2020-11-07 00:52:14,011 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_llseek [2020-11-07 00:52:14,011 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_read [2020-11-07 00:52:14,011 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_open [2020-11-07 00:52:14,012 INFO L138 BoogieDeclarations]: Found implementation of procedure my_init [2020-11-07 00:52:14,012 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 00:52:14,012 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 00:52:14,012 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 00:52:14,012 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 00:52:14,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 00:52:14,013 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-11-07 00:52:14,013 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 00:52:14,013 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2020-11-07 00:52:14,013 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-11-07 00:52:14,013 INFO L130 BoogieDeclarations]: Found specification of procedure check_final_state [2020-11-07 00:52:14,014 INFO L130 BoogieDeclarations]: Found specification of procedure misc_release [2020-11-07 00:52:14,014 INFO L130 BoogieDeclarations]: Found specification of procedure misc_llseek [2020-11-07 00:52:14,014 INFO L130 BoogieDeclarations]: Found specification of procedure misc_read [2020-11-07 00:52:14,014 INFO L130 BoogieDeclarations]: Found specification of procedure misc_open [2020-11-07 00:52:14,014 INFO L130 BoogieDeclarations]: Found specification of procedure my_init [2020-11-07 00:52:14,014 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 00:52:14,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 00:52:14,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 00:52:14,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 00:52:14,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 00:52:14,015 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 00:52:14,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 00:52:14,531 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 00:52:14,531 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-11-07 00:52:14,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:52:14 BoogieIcfgContainer [2020-11-07 00:52:14,534 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 00:52:14,537 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 00:52:14,537 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 00:52:14,541 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 00:52:14,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:52:13" (1/3) ... [2020-11-07 00:52:14,543 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@da2d04a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:52:14, skipping insertion in model container [2020-11-07 00:52:14,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:52:13" (2/3) ... [2020-11-07 00:52:14,544 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@da2d04a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:52:14, skipping insertion in model container [2020-11-07 00:52:14,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:52:14" (3/3) ... [2020-11-07 00:52:14,546 INFO L111 eAbstractionObserver]: Analyzing ICFG stateful_check.c [2020-11-07 00:52:14,568 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 00:52:14,573 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-07 00:52:14,590 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-07 00:52:14,621 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 00:52:14,622 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 00:52:14,622 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-11-07 00:52:14,622 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 00:52:14,622 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 00:52:14,623 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 00:52:14,623 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 00:52:14,623 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 00:52:14,646 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states. [2020-11-07 00:52:14,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-07 00:52:14,659 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:52:14,660 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 00:52:14,661 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:52:14,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:52:14,670 INFO L82 PathProgramCache]: Analyzing trace with hash 1164333913, now seen corresponding path program 1 times [2020-11-07 00:52:14,683 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:52:14,684 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [508431478] [2020-11-07 00:52:14,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:52:14,793 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:52:14,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:52:15,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:52:15,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:52:15,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-11-07 00:52:15,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:52:15,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:52:15,057 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [508431478] [2020-11-07 00:52:15,060 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:52:15,060 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-07 00:52:15,061 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969662922] [2020-11-07 00:52:15,067 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-07 00:52:15,067 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:52:15,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-07 00:52:15,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-07 00:52:15,090 INFO L87 Difference]: Start difference. First operand 117 states. Second operand 4 states. [2020-11-07 00:52:15,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:52:15,631 INFO L93 Difference]: Finished difference Result 212 states and 258 transitions. [2020-11-07 00:52:15,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-07 00:52:15,634 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2020-11-07 00:52:15,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:52:15,669 INFO L225 Difference]: With dead ends: 212 [2020-11-07 00:52:15,669 INFO L226 Difference]: Without dead ends: 110 [2020-11-07 00:52:15,681 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-07 00:52:15,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-11-07 00:52:15,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 105. [2020-11-07 00:52:15,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-11-07 00:52:15,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 120 transitions. [2020-11-07 00:52:15,799 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 120 transitions. Word has length 28 [2020-11-07 00:52:15,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:52:15,800 INFO L481 AbstractCegarLoop]: Abstraction has 105 states and 120 transitions. [2020-11-07 00:52:15,800 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-07 00:52:15,800 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 120 transitions. [2020-11-07 00:52:15,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-07 00:52:15,802 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:52:15,802 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 00:52:15,802 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 00:52:15,803 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:52:15,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:52:15,804 INFO L82 PathProgramCache]: Analyzing trace with hash 1140018033, now seen corresponding path program 1 times [2020-11-07 00:52:15,804 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:52:15,804 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [810532105] [2020-11-07 00:52:15,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:52:15,808 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:52:15,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:52:15,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:52:15,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:52:15,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-11-07 00:52:15,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:52:15,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:52:15,967 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [810532105] [2020-11-07 00:52:15,967 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:52:15,967 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-07 00:52:15,968 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277519431] [2020-11-07 00:52:15,969 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-07 00:52:15,969 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:52:15,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-07 00:52:15,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-07 00:52:15,971 INFO L87 Difference]: Start difference. First operand 105 states and 120 transitions. Second operand 5 states. [2020-11-07 00:52:16,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:52:16,503 INFO L93 Difference]: Finished difference Result 181 states and 212 transitions. [2020-11-07 00:52:16,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-07 00:52:16,504 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-11-07 00:52:16,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:52:16,508 INFO L225 Difference]: With dead ends: 181 [2020-11-07 00:52:16,509 INFO L226 Difference]: Without dead ends: 173 [2020-11-07 00:52:16,511 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-07 00:52:16,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2020-11-07 00:52:16,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 169. [2020-11-07 00:52:16,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2020-11-07 00:52:16,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 199 transitions. [2020-11-07 00:52:16,553 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 199 transitions. Word has length 30 [2020-11-07 00:52:16,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:52:16,553 INFO L481 AbstractCegarLoop]: Abstraction has 169 states and 199 transitions. [2020-11-07 00:52:16,554 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-07 00:52:16,554 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 199 transitions. [2020-11-07 00:52:16,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-11-07 00:52:16,556 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:52:16,557 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 00:52:16,557 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 00:52:16,557 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:52:16,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:52:16,558 INFO L82 PathProgramCache]: Analyzing trace with hash -555133441, now seen corresponding path program 1 times [2020-11-07 00:52:16,559 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:52:16,559 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [253135344] [2020-11-07 00:52:16,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:52:16,563 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:52:16,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:52:16,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:52:16,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:52:16,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-11-07 00:52:16,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:52:16,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-11-07 00:52:16,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:52:16,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:52:16,786 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [253135344] [2020-11-07 00:52:16,786 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:52:16,787 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-07 00:52:16,787 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831638332] [2020-11-07 00:52:16,788 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-07 00:52:16,788 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:52:16,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-07 00:52:16,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-07 00:52:16,790 INFO L87 Difference]: Start difference. First operand 169 states and 199 transitions. Second operand 6 states. [2020-11-07 00:52:17,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:52:17,228 INFO L93 Difference]: Finished difference Result 421 states and 524 transitions. [2020-11-07 00:52:17,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-07 00:52:17,229 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 47 [2020-11-07 00:52:17,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:52:17,232 INFO L225 Difference]: With dead ends: 421 [2020-11-07 00:52:17,233 INFO L226 Difference]: Without dead ends: 274 [2020-11-07 00:52:17,235 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-11-07 00:52:17,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2020-11-07 00:52:17,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 209. [2020-11-07 00:52:17,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2020-11-07 00:52:17,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 250 transitions. [2020-11-07 00:52:17,272 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 250 transitions. Word has length 47 [2020-11-07 00:52:17,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:52:17,272 INFO L481 AbstractCegarLoop]: Abstraction has 209 states and 250 transitions. [2020-11-07 00:52:17,272 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-07 00:52:17,273 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 250 transitions. [2020-11-07 00:52:17,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-11-07 00:52:17,275 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:52:17,276 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 00:52:17,276 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 00:52:17,276 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:52:17,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:52:17,277 INFO L82 PathProgramCache]: Analyzing trace with hash -255317781, now seen corresponding path program 1 times [2020-11-07 00:52:17,277 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:52:17,278 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1352903736] [2020-11-07 00:52:17,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:52:17,752 INFO L316 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-11-07 00:52:17,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:52:17,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:52:17,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:52:17,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-11-07 00:52:17,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:52:17,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-11-07 00:52:17,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:52:17,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:52:18,331 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1352903736] [2020-11-07 00:52:18,331 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:52:18,331 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2020-11-07 00:52:18,332 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381922893] [2020-11-07 00:52:18,332 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-11-07 00:52:18,332 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:52:18,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-11-07 00:52:18,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=461, Unknown=0, NotChecked=0, Total=552 [2020-11-07 00:52:18,334 INFO L87 Difference]: Start difference. First operand 209 states and 250 transitions. Second operand 24 states. [2020-11-07 00:52:21,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:52:21,505 INFO L93 Difference]: Finished difference Result 623 states and 784 transitions. [2020-11-07 00:52:21,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2020-11-07 00:52:21,506 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 68 [2020-11-07 00:52:21,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:52:21,507 INFO L225 Difference]: With dead ends: 623 [2020-11-07 00:52:21,507 INFO L226 Difference]: Without dead ends: 0 [2020-11-07 00:52:21,513 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 17 SyntacticMatches, 3 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1921 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1006, Invalid=4846, Unknown=0, NotChecked=0, Total=5852 [2020-11-07 00:52:21,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-07 00:52:21,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-07 00:52:21,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-07 00:52:21,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-07 00:52:21,515 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 68 [2020-11-07 00:52:21,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:52:21,515 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-07 00:52:21,515 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-11-07 00:52:21,515 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-07 00:52:21,516 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-07 00:52:21,516 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-07 00:52:21,519 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-07 00:52:24,310 WARN L194 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 27 [2020-11-07 00:52:25,589 INFO L262 CegarLoopResult]: At program point reach_errorEXIT(line 3) the Hoare annotation is: (= 2 ~ldv_mutex~0) [2020-11-07 00:52:25,589 INFO L269 CegarLoopResult]: At program point reach_errorENTRY(line 3) the Hoare annotation is: true [2020-11-07 00:52:25,589 INFO L262 CegarLoopResult]: At program point reach_errorFINAL(line 3) the Hoare annotation is: (= 2 ~ldv_mutex~0) [2020-11-07 00:52:25,590 INFO L262 CegarLoopResult]: At program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) the Hoare annotation is: (= 2 ~ldv_mutex~0) [2020-11-07 00:52:25,590 INFO L262 CegarLoopResult]: At program point misc_releaseFINAL(lines 33 47) the Hoare annotation is: (or (= 2 |old(~ldv_mutex~0)|) (not (= |old(~open_called~0)| 0)) (and (= |old(~ldv_mutex~0)| ~ldv_mutex~0) (= ~open_called~0 |old(~open_called~0)|))) [2020-11-07 00:52:25,590 INFO L262 CegarLoopResult]: At program point L44(lines 36 45) the Hoare annotation is: (or (= 2 |old(~ldv_mutex~0)|) (not (= |old(~open_called~0)| 0)) (and (= |old(~ldv_mutex~0)| ~ldv_mutex~0) (= ~open_called~0 |old(~open_called~0)|))) [2020-11-07 00:52:25,590 INFO L262 CegarLoopResult]: At program point L43(line 43) the Hoare annotation is: (or (= 2 |old(~ldv_mutex~0)|) (not (= |old(~open_called~0)| 0)) (and (= |old(~ldv_mutex~0)| ~ldv_mutex~0) (= ~open_called~0 |old(~open_called~0)|))) [2020-11-07 00:52:25,591 INFO L262 CegarLoopResult]: At program point L43-1(line 43) the Hoare annotation is: (or (= 2 |old(~ldv_mutex~0)|) (not (= |old(~open_called~0)| 0)) (and (= |old(~ldv_mutex~0)| ~ldv_mutex~0) (= ~open_called~0 |old(~open_called~0)|))) [2020-11-07 00:52:25,591 INFO L262 CegarLoopResult]: At program point misc_releaseEXIT(lines 33 47) the Hoare annotation is: (or (= 2 |old(~ldv_mutex~0)|) (not (= |old(~open_called~0)| 0)) (and (= |old(~ldv_mutex~0)| ~ldv_mutex~0) (= ~open_called~0 |old(~open_called~0)|))) [2020-11-07 00:52:25,591 INFO L262 CegarLoopResult]: At program point L39(line 39) the Hoare annotation is: (or (= 2 |old(~ldv_mutex~0)|) (not (= |old(~open_called~0)| 0))) [2020-11-07 00:52:25,591 INFO L262 CegarLoopResult]: At program point L38(line 38) the Hoare annotation is: (or (= 2 |old(~ldv_mutex~0)|) (not (= |old(~open_called~0)| 0))) [2020-11-07 00:52:25,591 INFO L262 CegarLoopResult]: At program point misc_releaseENTRY(lines 33 47) the Hoare annotation is: (or (= 2 |old(~ldv_mutex~0)|) (not (= |old(~open_called~0)| 0)) (and (= |old(~ldv_mutex~0)| ~ldv_mutex~0) (= ~open_called~0 |old(~open_called~0)|))) [2020-11-07 00:52:25,591 INFO L262 CegarLoopResult]: At program point L38-1(line 38) the Hoare annotation is: (or (= 2 |old(~ldv_mutex~0)|) (not (= |old(~open_called~0)| 0))) [2020-11-07 00:52:25,592 INFO L269 CegarLoopResult]: At program point misc_readENTRY(lines 53 55) the Hoare annotation is: true [2020-11-07 00:52:25,592 INFO L269 CegarLoopResult]: At program point misc_readFINAL(lines 53 55) the Hoare annotation is: true [2020-11-07 00:52:25,592 INFO L269 CegarLoopResult]: At program point misc_readEXIT(lines 53 55) the Hoare annotation is: true [2020-11-07 00:52:25,592 INFO L262 CegarLoopResult]: At program point L30-1(line 30) the Hoare annotation is: (not (= ~ldv_mutex~0 1)) [2020-11-07 00:52:25,592 INFO L269 CegarLoopResult]: At program point L30-2(lines 28 31) the Hoare annotation is: true [2020-11-07 00:52:25,592 INFO L269 CegarLoopResult]: At program point check_final_stateENTRY(lines 28 31) the Hoare annotation is: true [2020-11-07 00:52:25,593 INFO L269 CegarLoopResult]: At program point check_final_stateEXIT(lines 28 31) the Hoare annotation is: true [2020-11-07 00:52:25,593 INFO L262 CegarLoopResult]: At program point __blast_assertEXIT(lines 5 7) the Hoare annotation is: (= 2 ~ldv_mutex~0) [2020-11-07 00:52:25,593 INFO L262 CegarLoopResult]: At program point L6(line 6) the Hoare annotation is: (= 2 ~ldv_mutex~0) [2020-11-07 00:52:25,593 INFO L262 CegarLoopResult]: At program point __blast_assertFINAL(lines 5 7) the Hoare annotation is: (= 2 ~ldv_mutex~0) [2020-11-07 00:52:25,593 INFO L269 CegarLoopResult]: At program point __blast_assertENTRY(lines 5 7) the Hoare annotation is: true [2020-11-07 00:52:25,593 INFO L262 CegarLoopResult]: At program point L93(line 93) the Hoare annotation is: (or (not (= |old(~open_called~0)| 0)) (not (= |old(~ldv_mutex~0)| 1)) (and (= |old(~ldv_mutex~0)| ~ldv_mutex~0) (= ~open_called~0 0) (<= 0 (+ |main_#t~nondet10| 2147483648)) (<= |main_#t~nondet10| 2147483647) (= main_~ldv_s_misc_fops_file_operations~0 1))) [2020-11-07 00:52:25,594 INFO L262 CegarLoopResult]: At program point L93-1(line 93) the Hoare annotation is: (or (not (= |old(~open_called~0)| 0)) (not (= |old(~ldv_mutex~0)| 1)) (and (= |old(~ldv_mutex~0)| ~ldv_mutex~0) (= ~open_called~0 0) (<= 0 (+ |main_#t~nondet10| 2147483648)) (<= |main_#t~nondet10| 2147483647) (= main_~ldv_s_misc_fops_file_operations~0 1))) [2020-11-07 00:52:25,594 INFO L262 CegarLoopResult]: At program point L93-2(line 93) the Hoare annotation is: (or (not (= |old(~open_called~0)| 0)) (not (= |old(~ldv_mutex~0)| 1)) (and (= |old(~ldv_mutex~0)| ~ldv_mutex~0) (= ~open_called~0 0) (<= 0 (+ |main_#t~nondet10| 2147483648)) (<= |main_#t~nondet10| 2147483647))) [2020-11-07 00:52:25,594 INFO L269 CegarLoopResult]: At program point mainEXIT(lines 75 119) the Hoare annotation is: true [2020-11-07 00:52:25,594 INFO L262 CegarLoopResult]: At program point L85(line 85) the Hoare annotation is: (or (not (= |old(~open_called~0)| 0)) (not (= |old(~ldv_mutex~0)| 1)) (and (= |old(~ldv_mutex~0)| ~ldv_mutex~0) (= |main_#t~nondet10| 0) (= main_~ldv_s_misc_fops_file_operations~0 0) |main_#t~switch11|)) [2020-11-07 00:52:25,594 INFO L262 CegarLoopResult]: At program point L85-1(line 85) the Hoare annotation is: (or (not (= |old(~open_called~0)| 0)) (not (= |old(~ldv_mutex~0)| 1)) (and (= |old(~ldv_mutex~0)| ~ldv_mutex~0) (= main_~ldv_s_misc_fops_file_operations~0 |main_#t~post13|) (= |main_#t~nondet10| 0) (= main_~ldv_s_misc_fops_file_operations~0 0) |main_#t~switch11|)) [2020-11-07 00:52:25,595 INFO L262 CegarLoopResult]: At program point L85-2(line 85) the Hoare annotation is: (or (not (= |old(~open_called~0)| 0)) (not (= |old(~ldv_mutex~0)| 1)) (and (= |old(~ldv_mutex~0)| ~ldv_mutex~0) (= |main_#t~nondet10| 0) (= 0 |main_#t~post13|) (= (+ |main_#t~post13| 1) main_~ldv_s_misc_fops_file_operations~0) |main_#t~switch11|)) [2020-11-07 00:52:25,595 INFO L262 CegarLoopResult]: At program point L114(line 114) the Hoare annotation is: (or (not (= |old(~open_called~0)| 0)) (not (= |old(~ldv_mutex~0)| 1)) (and (= |old(~ldv_mutex~0)| ~ldv_mutex~0) (= ~open_called~0 0) (<= 0 (+ |main_#t~nondet10| 2147483648)) (<= |main_#t~nondet10| 2147483647))) [2020-11-07 00:52:25,595 INFO L262 CegarLoopResult]: At program point L114-1(line 114) the Hoare annotation is: (or (not (= |old(~open_called~0)| 0)) (not (= |old(~ldv_mutex~0)| 1)) (and (= |old(~ldv_mutex~0)| ~ldv_mutex~0) (= ~open_called~0 0) (<= 0 (+ |main_#t~nondet10| 2147483648)) (<= |main_#t~nondet10| 2147483647))) [2020-11-07 00:52:25,595 INFO L262 CegarLoopResult]: At program point L77(line 77) the Hoare annotation is: (or (not (= |old(~open_called~0)| 0)) (not (= |old(~ldv_mutex~0)| 1)) (and (= ~ldv_mutex~0 1) (= main_~ldv_s_misc_fops_file_operations~0 0) (= ~open_called~0 |old(~open_called~0)|))) [2020-11-07 00:52:25,596 INFO L262 CegarLoopResult]: At program point L77-1(line 77) the Hoare annotation is: (or (not (= |old(~open_called~0)| 0)) (not (= |old(~ldv_mutex~0)| 1)) (and (= ~ldv_mutex~0 1) (= main_~ldv_s_misc_fops_file_operations~0 0) (= ~open_called~0 |old(~open_called~0)|))) [2020-11-07 00:52:25,596 INFO L262 CegarLoopResult]: At program point L77-2(line 77) the Hoare annotation is: (or (not (= |old(~open_called~0)| 0)) (not (= |old(~ldv_mutex~0)| 1)) (and (= ~ldv_mutex~0 1) (= main_~ldv_s_misc_fops_file_operations~0 0) (= ~open_called~0 |old(~open_called~0)|))) [2020-11-07 00:52:25,596 INFO L262 CegarLoopResult]: At program point L106(line 106) the Hoare annotation is: (or (not (= |old(~open_called~0)| 0)) (not (= |old(~ldv_mutex~0)| 1)) (and (= |old(~ldv_mutex~0)| ~ldv_mutex~0) (= ~open_called~0 0) (<= 0 (+ |main_#t~nondet10| 2147483648)) (<= |main_#t~nondet10| 2147483647))) [2020-11-07 00:52:25,596 INFO L262 CegarLoopResult]: At program point L106-1(line 106) the Hoare annotation is: (or (not (= |old(~open_called~0)| 0)) (not (= |old(~ldv_mutex~0)| 1)) (and (= |old(~ldv_mutex~0)| ~ldv_mutex~0) (= ~open_called~0 0) (<= 0 (+ |main_#t~nondet10| 2147483648)) (<= |main_#t~nondet10| 2147483647))) [2020-11-07 00:52:25,596 INFO L262 CegarLoopResult]: At program point L98(line 98) the Hoare annotation is: (or (not (= |old(~open_called~0)| 0)) (not (= |old(~ldv_mutex~0)| 1)) (and (= |old(~ldv_mutex~0)| ~ldv_mutex~0) (= ~open_called~0 0) (<= 0 (+ |main_#t~nondet10| 2147483648)) (<= |main_#t~nondet10| 2147483647))) [2020-11-07 00:52:25,597 INFO L262 CegarLoopResult]: At program point L98-1(line 98) the Hoare annotation is: (or (not (= |old(~open_called~0)| 0)) (not (= |old(~ldv_mutex~0)| 1)) (and (= |old(~ldv_mutex~0)| ~ldv_mutex~0) (= ~open_called~0 0) (<= 0 (+ |main_#t~nondet10| 2147483648)) (<= |main_#t~nondet10| 2147483647))) [2020-11-07 00:52:25,597 INFO L262 CegarLoopResult]: At program point L90(line 90) the Hoare annotation is: (or (and (= ~open_called~0 0) (let ((.cse0 (= |main_#t~nondet10| 0))) (or (and (not |main_#t~switch11|) (not .cse0)) (and .cse0 |main_#t~switch11|))) (= ~ldv_mutex~0 1) (<= 0 (+ |main_#t~nondet10| 2147483648)) (<= |main_#t~nondet10| 2147483647)) (not (= |old(~open_called~0)| 0)) (not (= |old(~ldv_mutex~0)| 1))) [2020-11-07 00:52:25,597 INFO L262 CegarLoopResult]: At program point L90-1(line 90) the Hoare annotation is: (or (not (= |old(~open_called~0)| 0)) (not (= |old(~ldv_mutex~0)| 1)) (and (= |old(~ldv_mutex~0)| ~ldv_mutex~0) (= ~open_called~0 0) (<= 0 (+ |main_#t~nondet10| 2147483648)) (<= |main_#t~nondet10| 2147483647))) [2020-11-07 00:52:25,597 INFO L262 CegarLoopResult]: At program point L82(line 82) the Hoare annotation is: (or (not (= |old(~open_called~0)| 0)) (not (= |old(~ldv_mutex~0)| 1)) (and (= |old(~ldv_mutex~0)| ~ldv_mutex~0) (= ~open_called~0 0) (<= 0 (+ |main_#t~nondet10| 2147483648)) (<= |main_#t~nondet10| 2147483647))) [2020-11-07 00:52:25,597 INFO L262 CegarLoopResult]: At program point L82-1(line 82) the Hoare annotation is: (or (and (= ~open_called~0 0) (let ((.cse0 (= |main_#t~nondet10| 0))) (or (and (not |main_#t~switch11|) (not .cse0)) (and .cse0 |main_#t~switch11|))) (= ~ldv_mutex~0 1) (<= 0 (+ |main_#t~nondet10| 2147483648)) (<= |main_#t~nondet10| 2147483647)) (not (= |old(~open_called~0)| 0)) (not (= |old(~ldv_mutex~0)| 1))) [2020-11-07 00:52:25,598 INFO L262 CegarLoopResult]: At program point L78-1(lines 78 116) the Hoare annotation is: (let ((.cse0 (<= |main_#t~nondet9| 2147483647)) (.cse1 (<= 0 (+ |main_#t~nondet9| 2147483648))) (.cse2 (= |old(~ldv_mutex~0)| ~ldv_mutex~0))) (or (and .cse0 .cse1 .cse2 (= main_~ldv_s_misc_fops_file_operations~0 1)) (not (= |old(~open_called~0)| 0)) (not (= |old(~ldv_mutex~0)| 1)) (and .cse0 .cse1 .cse2 (= ~open_called~0 0)))) [2020-11-07 00:52:25,598 INFO L262 CegarLoopResult]: At program point L78-2(line 78) the Hoare annotation is: (or (not (= |old(~open_called~0)| 0)) (not (= |old(~ldv_mutex~0)| 1)) (= ~ldv_mutex~0 1)) [2020-11-07 00:52:25,598 INFO L262 CegarLoopResult]: At program point L107(lines 107 110) the Hoare annotation is: (or (not (= |old(~open_called~0)| 0)) (not (= |old(~ldv_mutex~0)| 1)) (and (= |old(~ldv_mutex~0)| ~ldv_mutex~0) (= ~open_called~0 0) (<= 0 (+ |main_#t~nondet10| 2147483648)) (<= |main_#t~nondet10| 2147483647))) [2020-11-07 00:52:25,598 INFO L262 CegarLoopResult]: At program point L78-4(line 78) the Hoare annotation is: (or (not (= |old(~open_called~0)| 0)) (not (= |old(~ldv_mutex~0)| 1)) (and (<= |main_#t~nondet9| 2147483647) (<= 0 (+ |main_#t~nondet9| 2147483648)) (= |old(~ldv_mutex~0)| ~ldv_mutex~0) (= ~open_called~0 0) (not (= |main_#t~nondet9| 0)))) [2020-11-07 00:52:25,598 INFO L262 CegarLoopResult]: At program point L78-5(lines 78 116) the Hoare annotation is: (let ((.cse0 (= |old(~ldv_mutex~0)| ~ldv_mutex~0))) (or (not (= |old(~open_called~0)| 0)) (not (= |old(~ldv_mutex~0)| 1)) (and .cse0 (= main_~ldv_s_misc_fops_file_operations~0 1)) (and .cse0 (= ~open_called~0 0)))) [2020-11-07 00:52:25,599 INFO L262 CegarLoopResult]: At program point L78-6(lines 78 116) the Hoare annotation is: (or (not (= |old(~open_called~0)| 0)) (not (= |old(~ldv_mutex~0)| 1)) (= ~ldv_mutex~0 1)) [2020-11-07 00:52:25,599 INFO L262 CegarLoopResult]: At program point L99(lines 99 102) the Hoare annotation is: (or (not (= |old(~open_called~0)| 0)) (not (= |old(~ldv_mutex~0)| 1)) (and (= |old(~ldv_mutex~0)| ~ldv_mutex~0) (= ~open_called~0 0) (<= 0 (+ |main_#t~nondet10| 2147483648)) (<= |main_#t~nondet10| 2147483647))) [2020-11-07 00:52:25,599 INFO L262 CegarLoopResult]: At program point L91(lines 91 94) the Hoare annotation is: (or (not (= |old(~open_called~0)| 0)) (not (= |old(~ldv_mutex~0)| 1)) (and (= |old(~ldv_mutex~0)| ~ldv_mutex~0) (= ~open_called~0 0) (<= 0 (+ |main_#t~nondet10| 2147483648)) (<= |main_#t~nondet10| 2147483647))) [2020-11-07 00:52:25,599 INFO L262 CegarLoopResult]: At program point L83(lines 83 86) the Hoare annotation is: (or (not (= |old(~open_called~0)| 0)) (not (= |old(~ldv_mutex~0)| 1)) (and (= |old(~ldv_mutex~0)| ~ldv_mutex~0) (= ~open_called~0 0) (= |main_#t~nondet10| 0) |main_#t~switch11|)) [2020-11-07 00:52:25,600 INFO L269 CegarLoopResult]: At program point mainFINAL(lines 75 119) the Hoare annotation is: true [2020-11-07 00:52:25,600 INFO L262 CegarLoopResult]: At program point L108(line 108) the Hoare annotation is: (or (not (= |old(~open_called~0)| 0)) (not (= |old(~ldv_mutex~0)| 1)) (and (= |old(~ldv_mutex~0)| ~ldv_mutex~0) (= ~open_called~0 0) (<= 0 (+ |main_#t~nondet10| 2147483648)) (<= |main_#t~nondet10| 2147483647))) [2020-11-07 00:52:25,600 INFO L262 CegarLoopResult]: At program point L108-1(line 108) the Hoare annotation is: (or (not (= |old(~open_called~0)| 0)) (not (= |old(~ldv_mutex~0)| 1)) (and (= |old(~ldv_mutex~0)| ~ldv_mutex~0) (= ~open_called~0 0) (<= 0 (+ |main_#t~nondet10| 2147483648)) (<= |main_#t~nondet10| 2147483647))) [2020-11-07 00:52:25,600 INFO L262 CegarLoopResult]: At program point L108-2(line 108) the Hoare annotation is: (or (not (= |old(~open_called~0)| 0)) (not (= |old(~ldv_mutex~0)| 1)) (and (= |old(~ldv_mutex~0)| ~ldv_mutex~0) (= ~open_called~0 0) (<= 0 (+ |main_#t~nondet10| 2147483648)) (<= |main_#t~nondet10| 2147483647))) [2020-11-07 00:52:25,600 INFO L262 CegarLoopResult]: At program point L100(line 100) the Hoare annotation is: (or (not (= |old(~open_called~0)| 0)) (not (= |old(~ldv_mutex~0)| 1)) (and (= |old(~ldv_mutex~0)| ~ldv_mutex~0) (= ~open_called~0 0) (<= 0 (+ |main_#t~nondet10| 2147483648)) (<= |main_#t~nondet10| 2147483647))) [2020-11-07 00:52:25,601 INFO L262 CegarLoopResult]: At program point L100-1(line 100) the Hoare annotation is: (or (not (= |old(~open_called~0)| 0)) (not (= |old(~ldv_mutex~0)| 1)) (and (= |old(~ldv_mutex~0)| ~ldv_mutex~0) (= ~open_called~0 0) (<= 0 (+ |main_#t~nondet10| 2147483648)) (<= |main_#t~nondet10| 2147483647))) [2020-11-07 00:52:25,601 INFO L262 CegarLoopResult]: At program point L100-2(line 100) the Hoare annotation is: (or (not (= |old(~open_called~0)| 0)) (not (= |old(~ldv_mutex~0)| 1)) (and (= |old(~ldv_mutex~0)| ~ldv_mutex~0) (= ~open_called~0 0) (<= 0 (+ |main_#t~nondet10| 2147483648)) (<= |main_#t~nondet10| 2147483647))) [2020-11-07 00:52:25,601 INFO L262 CegarLoopResult]: At program point mainENTRY(lines 75 119) the Hoare annotation is: (or (and (= ~ldv_mutex~0 1) (= ~open_called~0 |old(~open_called~0)|)) (not (= |old(~open_called~0)| 0)) (not (= |old(~ldv_mutex~0)| 1))) [2020-11-07 00:52:25,601 INFO L262 CegarLoopResult]: At program point L92(line 92) the Hoare annotation is: (or (not (= |old(~open_called~0)| 0)) (not (= |old(~ldv_mutex~0)| 1)) (and (= |old(~ldv_mutex~0)| ~ldv_mutex~0) (= ~open_called~0 0) (<= 0 (+ |main_#t~nondet10| 2147483648)) (<= |main_#t~nondet10| 2147483647) (= main_~ldv_s_misc_fops_file_operations~0 1))) [2020-11-07 00:52:25,601 INFO L262 CegarLoopResult]: At program point L92-1(line 92) the Hoare annotation is: (or (not (= |old(~open_called~0)| 0)) (not (= |old(~ldv_mutex~0)| 1)) (and (= |old(~ldv_mutex~0)| ~ldv_mutex~0) (= ~open_called~0 0) (<= 0 (+ |main_#t~nondet10| 2147483648)) (<= |main_#t~nondet10| 2147483647) (= main_~ldv_s_misc_fops_file_operations~0 1))) [2020-11-07 00:52:25,602 INFO L262 CegarLoopResult]: At program point L92-2(line 92) the Hoare annotation is: (or (not (= |old(~open_called~0)| 0)) (not (= |old(~ldv_mutex~0)| 1)) (and (= |old(~ldv_mutex~0)| ~ldv_mutex~0) (= ~open_called~0 0) (<= 0 (+ |main_#t~nondet10| 2147483648)) (<= |main_#t~nondet10| 2147483647) (= main_~ldv_s_misc_fops_file_operations~0 1))) [2020-11-07 00:52:25,602 INFO L269 CegarLoopResult]: At program point L117(line 117) the Hoare annotation is: true [2020-11-07 00:52:25,602 INFO L262 CegarLoopResult]: At program point L84(line 84) the Hoare annotation is: (or (not (= |old(~open_called~0)| 0)) (not (= |old(~ldv_mutex~0)| 1)) (and (= |old(~ldv_mutex~0)| ~ldv_mutex~0) (= ~open_called~0 0) (= |main_#t~nondet10| 0) (= main_~ldv_s_misc_fops_file_operations~0 0) |main_#t~switch11|)) [2020-11-07 00:52:25,602 INFO L262 CegarLoopResult]: At program point L84-1(line 84) the Hoare annotation is: (or (not (= |old(~open_called~0)| 0)) (not (= |old(~ldv_mutex~0)| 1)) (and (= |old(~ldv_mutex~0)| ~ldv_mutex~0) (= |main_#t~nondet10| 0) (= main_~ldv_s_misc_fops_file_operations~0 0) |main_#t~switch11|)) [2020-11-07 00:52:25,602 INFO L262 CegarLoopResult]: At program point L84-2(line 84) the Hoare annotation is: (or (not (= |old(~open_called~0)| 0)) (not (= |old(~ldv_mutex~0)| 1)) (and (= |old(~ldv_mutex~0)| ~ldv_mutex~0) (= |main_#t~nondet10| 0) (= main_~ldv_s_misc_fops_file_operations~0 0) |main_#t~switch11|)) [2020-11-07 00:52:25,603 INFO L262 CegarLoopResult]: At program point L80(line 80) the Hoare annotation is: (or (not (= |old(~open_called~0)| 0)) (not (= |old(~ldv_mutex~0)| 1)) (and (= |old(~ldv_mutex~0)| ~ldv_mutex~0) (= ~open_called~0 0))) [2020-11-07 00:52:25,603 INFO L262 CegarLoopResult]: At program point L80-1(lines 80 115) the Hoare annotation is: (let ((.cse0 (= |old(~ldv_mutex~0)| ~ldv_mutex~0))) (or (not (= |old(~open_called~0)| 0)) (not (= |old(~ldv_mutex~0)| 1)) (and .cse0 (= |main_#t~nondet10| 0) |main_#t~switch11| (= main_~ldv_s_misc_fops_file_operations~0 1)) (and .cse0 (= ~open_called~0 0) (<= 0 (+ |main_#t~nondet10| 2147483648)) (<= |main_#t~nondet10| 2147483647)))) [2020-11-07 00:52:25,603 INFO L262 CegarLoopResult]: At program point L80-2(lines 80 115) the Hoare annotation is: (let ((.cse0 (= |old(~ldv_mutex~0)| ~ldv_mutex~0))) (or (not (= |old(~open_called~0)| 0)) (and .cse0 |main_#t~switch11| (= main_~ldv_s_misc_fops_file_operations~0 1)) (not (= |old(~ldv_mutex~0)| 1)) (and .cse0 (= ~open_called~0 0)))) [2020-11-07 00:52:25,603 INFO L262 CegarLoopResult]: At program point L109(line 109) the Hoare annotation is: (or (not (= |old(~open_called~0)| 0)) (not (= |old(~ldv_mutex~0)| 1)) (and (= |old(~ldv_mutex~0)| ~ldv_mutex~0) (= ~open_called~0 0) (<= 0 (+ |main_#t~nondet10| 2147483648)) (<= |main_#t~nondet10| 2147483647))) [2020-11-07 00:52:25,603 INFO L262 CegarLoopResult]: At program point L101(line 101) the Hoare annotation is: (or (not (= |old(~open_called~0)| 0)) (not (= |old(~ldv_mutex~0)| 1)) (and (= |old(~ldv_mutex~0)| ~ldv_mutex~0) (= ~open_called~0 0) (<= 0 (+ |main_#t~nondet10| 2147483648)) (<= |main_#t~nondet10| 2147483647))) [2020-11-07 00:52:25,604 INFO L262 CegarLoopResult]: At program point L101-1(line 101) the Hoare annotation is: (or (not (= |old(~open_called~0)| 0)) (not (= |old(~ldv_mutex~0)| 1)) (and (= |old(~ldv_mutex~0)| ~ldv_mutex~0) (= ~open_called~0 0) (<= 0 (+ |main_#t~nondet10| 2147483648)) (<= |main_#t~nondet10| 2147483647))) [2020-11-07 00:52:25,604 INFO L262 CegarLoopResult]: At program point L101-2(line 101) the Hoare annotation is: (or (not (= |old(~open_called~0)| 0)) (not (= |old(~ldv_mutex~0)| 1)) (and (= |old(~ldv_mutex~0)| ~ldv_mutex~0) (= ~open_called~0 0) (<= 0 (+ |main_#t~nondet10| 2147483648)) (<= |main_#t~nondet10| 2147483647))) [2020-11-07 00:52:25,604 INFO L262 CegarLoopResult]: At program point my_initFINAL(lines 68 73) the Hoare annotation is: (or (not (= |old(~open_called~0)| 0)) (not (= ~ldv_mutex~0 1)) (= ~open_called~0 |old(~open_called~0)|)) [2020-11-07 00:52:25,604 INFO L262 CegarLoopResult]: At program point my_initEXIT(lines 68 73) the Hoare annotation is: (or (not (= |old(~open_called~0)| 0)) (not (= ~ldv_mutex~0 1)) (= ~open_called~0 |old(~open_called~0)|)) [2020-11-07 00:52:25,604 INFO L262 CegarLoopResult]: At program point L72(line 72) the Hoare annotation is: (or (not (= |old(~open_called~0)| 0)) (not (= ~ldv_mutex~0 1)) (= ~open_called~0 |old(~open_called~0)|)) [2020-11-07 00:52:25,604 INFO L262 CegarLoopResult]: At program point my_initENTRY(lines 68 73) the Hoare annotation is: (or (not (= |old(~open_called~0)| 0)) (not (= ~ldv_mutex~0 1)) (= ~open_called~0 |old(~open_called~0)|)) [2020-11-07 00:52:25,605 INFO L269 CegarLoopResult]: At program point mutex_unlockENTRY(lines 22 26) the Hoare annotation is: true [2020-11-07 00:52:25,605 INFO L269 CegarLoopResult]: At program point mutex_unlockEXIT(lines 22 26) the Hoare annotation is: true [2020-11-07 00:52:25,605 INFO L269 CegarLoopResult]: At program point L24-1(line 24) the Hoare annotation is: true [2020-11-07 00:52:25,605 INFO L269 CegarLoopResult]: At program point mutex_unlockFINAL(lines 22 26) the Hoare annotation is: true [2020-11-07 00:52:25,605 INFO L269 CegarLoopResult]: At program point L24-2(line 24) the Hoare annotation is: true [2020-11-07 00:52:25,605 INFO L262 CegarLoopResult]: At program point L3-2(line 3) the Hoare annotation is: (and (= ~ldv_mutex~0 |old(~ldv_mutex~0)|) (= ~open_called~0 |old(~open_called~0)|)) [2020-11-07 00:52:25,606 INFO L262 CegarLoopResult]: At program point L3-3(line 3) the Hoare annotation is: (and (= ~ldv_mutex~0 |old(~ldv_mutex~0)|) (= ~open_called~0 |old(~open_called~0)|)) [2020-11-07 00:52:25,606 INFO L262 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~ldv_mutex~0 |old(~ldv_mutex~0)|) (= ~open_called~0 |old(~open_called~0)|)) [2020-11-07 00:52:25,606 INFO L262 CegarLoopResult]: At program point L3-4(line 3) the Hoare annotation is: (and (= ~ldv_mutex~0 |old(~ldv_mutex~0)|) (= ~open_called~0 |old(~open_called~0)|)) [2020-11-07 00:52:25,606 INFO L262 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: (and (= ~ldv_mutex~0 |old(~ldv_mutex~0)|) (= ~open_called~0 |old(~open_called~0)|)) [2020-11-07 00:52:25,606 INFO L262 CegarLoopResult]: At program point L3-5(line 3) the Hoare annotation is: (and (= ~ldv_mutex~0 |old(~ldv_mutex~0)|) (= ~open_called~0 |old(~open_called~0)|)) [2020-11-07 00:52:25,606 INFO L262 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: (and (= ~open_called~0 0) (= ~ldv_mutex~0 1)) [2020-11-07 00:52:25,607 INFO L262 CegarLoopResult]: At program point L13(line 13) the Hoare annotation is: (and (= ~ldv_mutex~0 1) (= ~open_called~0 |old(~open_called~0)|)) [2020-11-07 00:52:25,607 INFO L262 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.base| |old(#t~string5.base)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= ~ldv_mutex~0 |old(~ldv_mutex~0)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~open_called~0 |old(~open_called~0)|) (= |old(#valid)| |#valid|)) [2020-11-07 00:52:25,607 INFO L262 CegarLoopResult]: At program point L3(line 3) the Hoare annotation is: (and (= ~ldv_mutex~0 |old(~ldv_mutex~0)|) (= ~open_called~0 |old(~open_called~0)|)) [2020-11-07 00:52:25,607 INFO L262 CegarLoopResult]: At program point L3-1(line 3) the Hoare annotation is: (and (= ~ldv_mutex~0 |old(~ldv_mutex~0)|) (= ~open_called~0 |old(~open_called~0)|)) [2020-11-07 00:52:25,607 INFO L262 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: (and (= ~open_called~0 0) (= ~ldv_mutex~0 1)) [2020-11-07 00:52:25,607 INFO L269 CegarLoopResult]: At program point L64(line 64) the Hoare annotation is: true [2020-11-07 00:52:25,608 INFO L262 CegarLoopResult]: At program point misc_openENTRY(lines 57 66) the Hoare annotation is: (or (not |main_#t~switch11|) (= 2 ~ldv_mutex~0) (not (= |old(~open_called~0)| 0)) (not (= main_~ldv_s_misc_fops_file_operations~0 0)) (not (= |main_#t~nondet10| 0)) (= ~open_called~0 |old(~open_called~0)|)) [2020-11-07 00:52:25,608 INFO L262 CegarLoopResult]: At program point L63(line 63) the Hoare annotation is: (or (not |main_#t~switch11|) (= 2 ~ldv_mutex~0) (not (= |old(~open_called~0)| 0)) (not (= main_~ldv_s_misc_fops_file_operations~0 0)) (not (= |main_#t~nondet10| 0)) (= ~open_called~0 |old(~open_called~0)|)) [2020-11-07 00:52:25,608 INFO L262 CegarLoopResult]: At program point L61(line 61) the Hoare annotation is: (or (not |main_#t~switch11|) (= 2 ~ldv_mutex~0) (not (= |old(~open_called~0)| 0)) (not (= main_~ldv_s_misc_fops_file_operations~0 0)) (not (= |main_#t~nondet10| 0)) (= ~open_called~0 |old(~open_called~0)|)) [2020-11-07 00:52:25,608 INFO L262 CegarLoopResult]: At program point L59(lines 59 65) the Hoare annotation is: (or (not |main_#t~switch11|) (= 2 ~ldv_mutex~0) (not (= |old(~open_called~0)| 0)) (not (= main_~ldv_s_misc_fops_file_operations~0 0)) (and (<= 0 (+ |misc_open_#t~nondet7| 2147483648)) (<= |misc_open_#t~nondet7| 2147483647) (= ~open_called~0 |old(~open_called~0)|)) (not (= |main_#t~nondet10| 0))) [2020-11-07 00:52:25,608 INFO L269 CegarLoopResult]: At program point misc_openEXIT(lines 57 66) the Hoare annotation is: true [2020-11-07 00:52:25,609 INFO L262 CegarLoopResult]: At program point L59-1(line 59) the Hoare annotation is: (or (not |main_#t~switch11|) (= 2 ~ldv_mutex~0) (not (= |old(~open_called~0)| 0)) (not (= main_~ldv_s_misc_fops_file_operations~0 0)) (and (<= 0 (+ |misc_open_#t~nondet7| 2147483648)) (<= |misc_open_#t~nondet7| 2147483647) (not (= |misc_open_#t~nondet7| 0)) (= ~open_called~0 |old(~open_called~0)|)) (not (= |main_#t~nondet10| 0))) [2020-11-07 00:52:25,609 INFO L262 CegarLoopResult]: At program point L59-2(line 59) the Hoare annotation is: (or (not |main_#t~switch11|) (= 2 ~ldv_mutex~0) (not (= |old(~open_called~0)| 0)) (not (= main_~ldv_s_misc_fops_file_operations~0 0)) (and (<= 0 (+ |misc_open_#t~nondet7| 2147483648)) (<= |misc_open_#t~nondet7| 2147483647) (= ~open_called~0 |old(~open_called~0)|)) (not (= |main_#t~nondet10| 0))) [2020-11-07 00:52:25,609 INFO L269 CegarLoopResult]: At program point misc_openFINAL(lines 57 66) the Hoare annotation is: true [2020-11-07 00:52:25,609 INFO L262 CegarLoopResult]: At program point mutex_lockENTRY(lines 16 20) the Hoare annotation is: (or (= 2 |old(~ldv_mutex~0)|) (= |old(~ldv_mutex~0)| ~ldv_mutex~0) (not (= ~open_called~0 0))) [2020-11-07 00:52:25,609 INFO L262 CegarLoopResult]: At program point L18-1(line 18) the Hoare annotation is: (let ((.cse0 (not (= ~open_called~0 0)))) (and (or (= 2 |old(~ldv_mutex~0)|) (= |old(~ldv_mutex~0)| ~ldv_mutex~0) .cse0) (or (not (= |old(~ldv_mutex~0)| 1)) .cse0))) [2020-11-07 00:52:25,610 INFO L262 CegarLoopResult]: At program point L18-2(line 18) the Hoare annotation is: (or (and (= |old(~ldv_mutex~0)| ~ldv_mutex~0) (= ~ldv_mutex~0 1)) (= 2 |old(~ldv_mutex~0)|) (not (= ~open_called~0 0))) [2020-11-07 00:52:25,610 INFO L262 CegarLoopResult]: At program point mutex_lockFINAL(lines 16 20) the Hoare annotation is: (or (= 2 |old(~ldv_mutex~0)|) (= |old(~ldv_mutex~0)| ~ldv_mutex~0) (not (= ~open_called~0 0))) [2020-11-07 00:52:25,610 INFO L262 CegarLoopResult]: At program point mutex_lockEXIT(lines 16 20) the Hoare annotation is: (or (= 2 |old(~ldv_mutex~0)|) (= |old(~ldv_mutex~0)| ~ldv_mutex~0) (not (= ~open_called~0 0))) [2020-11-07 00:52:25,610 INFO L269 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-11-07 00:52:25,610 INFO L262 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~open_called~0 0) (= ~ldv_mutex~0 1)) [2020-11-07 00:52:25,610 INFO L269 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-11-07 00:52:25,610 INFO L269 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-11-07 00:52:25,611 INFO L269 CegarLoopResult]: At program point misc_llseekEXIT(lines 49 51) the Hoare annotation is: true [2020-11-07 00:52:25,611 INFO L269 CegarLoopResult]: At program point misc_llseekENTRY(lines 49 51) the Hoare annotation is: true [2020-11-07 00:52:25,611 INFO L269 CegarLoopResult]: At program point misc_llseekFINAL(lines 49 51) the Hoare annotation is: true [2020-11-07 00:52:25,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:52:25 BoogieIcfgContainer [2020-11-07 00:52:25,638 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 00:52:25,640 INFO L168 Benchmark]: Toolchain (without parser) took 12177.99 ms. Allocated memory was 151.0 MB in the beginning and 268.4 MB in the end (delta: 117.4 MB). Free memory was 127.8 MB in the beginning and 189.5 MB in the end (delta: -61.7 MB). Peak memory consumption was 151.5 MB. Max. memory is 8.0 GB. [2020-11-07 00:52:25,641 INFO L168 Benchmark]: CDTParser took 1.22 ms. Allocated memory is still 151.0 MB. Free memory is still 124.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 00:52:25,642 INFO L168 Benchmark]: CACSL2BoogieTranslator took 361.95 ms. Allocated memory is still 151.0 MB. Free memory was 127.2 MB in the beginning and 117.3 MB in the end (delta: 9.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-11-07 00:52:25,643 INFO L168 Benchmark]: Boogie Preprocessor took 80.12 ms. Allocated memory is still 151.0 MB. Free memory was 117.1 MB in the beginning and 115.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-07 00:52:25,644 INFO L168 Benchmark]: RCFGBuilder took 609.18 ms. Allocated memory is still 151.0 MB. Free memory was 115.4 MB in the beginning and 125.6 MB in the end (delta: -10.1 MB). Peak memory consumption was 17.3 MB. Max. memory is 8.0 GB. [2020-11-07 00:52:25,645 INFO L168 Benchmark]: TraceAbstraction took 11101.34 ms. Allocated memory was 151.0 MB in the beginning and 268.4 MB in the end (delta: 117.4 MB). Free memory was 125.1 MB in the beginning and 189.5 MB in the end (delta: -64.5 MB). Peak memory consumption was 147.8 MB. Max. memory is 8.0 GB. [2020-11-07 00:52:25,648 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.22 ms. Allocated memory is still 151.0 MB. Free memory is still 124.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 361.95 ms. Allocated memory is still 151.0 MB. Free memory was 127.2 MB in the beginning and 117.3 MB in the end (delta: 9.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 80.12 ms. Allocated memory is still 151.0 MB. Free memory was 117.1 MB in the beginning and 115.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 609.18 ms. Allocated memory is still 151.0 MB. Free memory was 115.4 MB in the beginning and 125.6 MB in the end (delta: -10.1 MB). Peak memory consumption was 17.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 11101.34 ms. Allocated memory was 151.0 MB in the beginning and 268.4 MB in the end (delta: 117.4 MB). Free memory was 125.1 MB in the beginning and 189.5 MB in the end (delta: -64.5 MB). Peak memory consumption was 147.8 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 78]: Loop Invariant Derived loop invariant: ((!(\old(open_called) == 0) || !(\old(ldv_mutex) == 1)) || (\old(ldv_mutex) == ldv_mutex && ldv_s_misc_fops_file_operations == 1)) || (\old(ldv_mutex) == ldv_mutex && open_called == 0) - InvariantResult [Line: 80]: Loop Invariant Derived loop invariant: ((!(\old(open_called) == 0) || !(\old(ldv_mutex) == 1)) || (((\old(ldv_mutex) == ldv_mutex && aux-__VERIFIER_nondet_int()-aux == 0) && aux-switch(__VERIFIER_nondet_int()) { case 0: { if(ldv_s_misc_fops_file_operations==0) { misc_open(); ldv_s_misc_fops_file_operations++; } } break; case 1: { if(ldv_s_misc_fops_file_operations==1) { misc_read(); ldv_s_misc_fops_file_operations++; } } break; case 2: { if(ldv_s_misc_fops_file_operations==2) { misc_llseek(); ldv_s_misc_fops_file_operations++; } } break; case 3: { if(ldv_s_misc_fops_file_operations==3) { misc_release(); ldv_s_misc_fops_file_operations=0; } } break; default: break; }-aux) && ldv_s_misc_fops_file_operations == 1)) || (((\old(ldv_mutex) == ldv_mutex && open_called == 0) && 0 <= aux-__VERIFIER_nondet_int()-aux + 2147483648) && aux-__VERIFIER_nondet_int()-aux <= 2147483647) - ProcedureContractResult [Line: 3]: Procedure Contract for reach_error Derived contract for procedure reach_error: 2 == ldv_mutex - ProcedureContractResult [Line: 33]: Procedure Contract for misc_release Derived contract for procedure misc_release: (2 == \old(ldv_mutex) || !(\old(open_called) == 0)) || (\old(ldv_mutex) == ldv_mutex && open_called == \old(open_called)) - ProcedureContractResult [Line: 53]: Procedure Contract for misc_read Derived contract for procedure misc_read: 1 - ProcedureContractResult [Line: 28]: Procedure Contract for check_final_state Derived contract for procedure check_final_state: 1 - ProcedureContractResult [Line: 5]: Procedure Contract for __blast_assert Derived contract for procedure __blast_assert: 2 == ldv_mutex - ProcedureContractResult [Line: 75]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 68]: Procedure Contract for my_init Derived contract for procedure my_init: (!(\old(open_called) == 0) || !(ldv_mutex == 1)) || open_called == \old(open_called) - ProcedureContractResult [Line: 22]: Procedure Contract for mutex_unlock Derived contract for procedure mutex_unlock: 1 - ProcedureContractResult [Line: 57]: Procedure Contract for misc_open Derived contract for procedure misc_open: 1 - ProcedureContractResult [Line: 16]: Procedure Contract for mutex_lock Derived contract for procedure mutex_lock: (2 == \old(ldv_mutex) || \old(ldv_mutex) == ldv_mutex) || !(open_called == 0) - ProcedureContractResult [Line: 49]: Procedure Contract for misc_llseek Derived contract for procedure misc_llseek: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 13 procedures, 117 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.8s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 4.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 453 SDtfs, 999 SDslu, 645 SDs, 0 SdLazy, 1280 SolverSat, 291 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 123 GetRequests, 31 SyntacticMatches, 3 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1923 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=209occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 74 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 117 LocationsWithAnnotation, 510 PreInvPairs, 924 NumberOfFragments, 1706 HoareAnnotationTreeSize, 510 FomulaSimplifications, 14976 FormulaSimplificationTreeSizeReduction, 1.0s HoareSimplificationTime, 117 FomulaSimplificationsInter, 5245 FormulaSimplificationTreeSizeReductionInter, 2.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...