/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-industry-pattern/ofuf_1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 18:44:46,336 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 18:44:46,341 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 18:44:46,399 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 18:44:46,400 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 18:44:46,404 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 18:44:46,408 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 18:44:46,416 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 18:44:46,419 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 18:44:46,426 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 18:44:46,428 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 18:44:46,429 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 18:44:46,430 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 18:44:46,433 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 18:44:46,436 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 18:44:46,438 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 18:44:46,440 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 18:44:46,443 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 18:44:46,456 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 18:44:46,464 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 18:44:46,466 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 18:44:46,470 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 18:44:46,471 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 18:44:46,472 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 18:44:46,477 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-23 18:44:46,487 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 18:44:46,488 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 18:44:46,489 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 18:44:46,490 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-23 18:44:46,517 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 18:44:46,517 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 18:44:46,519 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-23 18:44:46,519 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-23 18:44:46,519 INFO L138 SettingsManager]: * Use SBE=true [2020-10-23 18:44:46,520 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 18:44:46,520 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 18:44:46,520 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 18:44:46,520 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 18:44:46,521 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 18:44:46,521 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 18:44:46,521 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 18:44:46,521 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 18:44:46,522 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 18:44:46,522 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 18:44:46,522 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 18:44:46,522 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 18:44:46,523 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 18:44:46,523 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-23 18:44:46,523 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 18:44:46,524 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 18:44:46,524 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 18:44:46,524 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 18:44:46,524 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-23 18:44:46,524 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-23 18:44:46,525 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-23 18:44:46,525 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-23 18:44:46,525 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 18:44:46,525 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-23 18:44:46,525 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 18:44:46,944 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 18:44:46,976 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 18:44:46,980 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 18:44:46,982 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 18:44:46,983 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 18:44:46,984 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/ofuf_1.c [2020-10-23 18:44:47,060 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ffa9e4a23/dabe2fbf554b4ba49717eda9bb59ad44/FLAG1035dd4b9 [2020-10-23 18:44:47,730 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 18:44:47,731 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/ofuf_1.c [2020-10-23 18:44:47,742 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ffa9e4a23/dabe2fbf554b4ba49717eda9bb59ad44/FLAG1035dd4b9 [2020-10-23 18:44:48,042 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ffa9e4a23/dabe2fbf554b4ba49717eda9bb59ad44 [2020-10-23 18:44:48,046 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 18:44:48,054 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 18:44:48,058 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 18:44:48,059 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 18:44:48,063 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 18:44:48,065 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:44:48" (1/1) ... [2020-10-23 18:44:48,073 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32919b08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:44:48, skipping insertion in model container [2020-10-23 18:44:48,073 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:44:48" (1/1) ... [2020-10-23 18:44:48,082 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 18:44:48,147 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 18:44:48,462 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 18:44:48,473 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 18:44:48,579 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 18:44:48,603 INFO L208 MainTranslator]: Completed translation [2020-10-23 18:44:48,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:44:48 WrapperNode [2020-10-23 18:44:48,604 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 18:44:48,606 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 18:44:48,606 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 18:44:48,606 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 18:44:48,619 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:44:48" (1/1) ... [2020-10-23 18:44:48,620 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:44:48" (1/1) ... [2020-10-23 18:44:48,639 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:44:48" (1/1) ... [2020-10-23 18:44:48,640 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:44:48" (1/1) ... [2020-10-23 18:44:48,682 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:44:48" (1/1) ... [2020-10-23 18:44:48,692 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:44:48" (1/1) ... [2020-10-23 18:44:48,697 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:44:48" (1/1) ... [2020-10-23 18:44:48,708 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 18:44:48,709 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 18:44:48,709 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 18:44:48,709 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 18:44:48,710 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:44:48" (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 [2020-10-23 18:44:48,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 18:44:48,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 18:44:48,784 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 18:44:48,785 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-23 18:44:48,785 INFO L138 BoogieDeclarations]: Found implementation of procedure avoid_zero [2020-10-23 18:44:48,785 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_107 [2020-10-23 18:44:48,785 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_110 [2020-10-23 18:44:48,785 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_113 [2020-10-23 18:44:48,785 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_114 [2020-10-23 18:44:48,786 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_115 [2020-10-23 18:44:48,786 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_117 [2020-10-23 18:44:48,786 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_118 [2020-10-23 18:44:48,786 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 18:44:48,786 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-23 18:44:48,786 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 18:44:48,786 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 18:44:48,786 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 18:44:48,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 18:44:48,787 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-23 18:44:48,798 INFO L130 BoogieDeclarations]: Found specification of procedure avoid_zero [2020-10-23 18:44:48,806 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2020-10-23 18:44:48,816 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_107 [2020-10-23 18:44:48,816 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_110 [2020-10-23 18:44:48,817 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_113 [2020-10-23 18:44:48,817 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_114 [2020-10-23 18:44:48,817 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_115 [2020-10-23 18:44:48,817 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 18:44:48,817 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_117 [2020-10-23 18:44:48,817 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_118 [2020-10-23 18:44:48,817 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2020-10-23 18:44:48,818 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 18:44:48,818 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-23 18:44:48,818 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 18:44:48,818 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 18:44:48,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 18:44:48,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 18:44:48,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 18:44:48,819 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 18:44:48,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 18:44:48,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 18:44:48,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-23 18:44:48,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 18:44:49,789 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 18:44:49,789 INFO L298 CfgBuilder]: Removed 7 assume(true) statements. [2020-10-23 18:44:49,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:44:49 BoogieIcfgContainer [2020-10-23 18:44:49,791 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 18:44:49,793 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 18:44:49,793 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 18:44:49,797 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 18:44:49,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 06:44:48" (1/3) ... [2020-10-23 18:44:49,798 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@741475ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:44:49, skipping insertion in model container [2020-10-23 18:44:49,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:44:48" (2/3) ... [2020-10-23 18:44:49,799 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@741475ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:44:49, skipping insertion in model container [2020-10-23 18:44:49,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:44:49" (3/3) ... [2020-10-23 18:44:49,801 INFO L111 eAbstractionObserver]: Analyzing ICFG ofuf_1.c [2020-10-23 18:44:49,813 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-23 18:44:49,818 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-23 18:44:49,829 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-23 18:44:49,856 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 18:44:49,856 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 18:44:49,856 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-23 18:44:49,856 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 18:44:49,857 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 18:44:49,857 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 18:44:49,857 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 18:44:49,857 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 18:44:49,877 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states. [2020-10-23 18:44:49,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-10-23 18:44:49,887 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:44:49,888 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] [2020-10-23 18:44:49,889 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:44:49,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:44:49,895 INFO L82 PathProgramCache]: Analyzing trace with hash 636648653, now seen corresponding path program 1 times [2020-10-23 18:44:49,906 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:44:49,907 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764774076] [2020-10-23 18:44:49,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:44:50,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:44:50,531 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-23 18:44:50,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:44:50,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:44:50,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-23 18:44:50,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:44:50,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-23 18:44:50,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:44:50,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:44:50,613 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764774076] [2020-10-23 18:44:50,613 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:44:50,614 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 18:44:50,615 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520605707] [2020-10-23 18:44:50,621 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 18:44:50,621 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:44:50,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 18:44:50,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 18:44:50,644 INFO L87 Difference]: Start difference. First operand 131 states. Second operand 4 states. [2020-10-23 18:44:50,855 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-10-23 18:44:52,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:44:52,488 INFO L93 Difference]: Finished difference Result 246 states and 367 transitions. [2020-10-23 18:44:52,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 18:44:52,491 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 39 [2020-10-23 18:44:52,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:44:52,509 INFO L225 Difference]: With dead ends: 246 [2020-10-23 18:44:52,509 INFO L226 Difference]: Without dead ends: 119 [2020-10-23 18:44:52,519 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-23 18:44:52,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-10-23 18:44:52,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2020-10-23 18:44:52,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2020-10-23 18:44:52,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 165 transitions. [2020-10-23 18:44:52,609 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 165 transitions. Word has length 39 [2020-10-23 18:44:52,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:44:52,610 INFO L481 AbstractCegarLoop]: Abstraction has 119 states and 165 transitions. [2020-10-23 18:44:52,610 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 18:44:52,611 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 165 transitions. [2020-10-23 18:44:52,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-10-23 18:44:52,623 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:44:52,623 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] [2020-10-23 18:44:52,623 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 18:44:52,624 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:44:52,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:44:52,626 INFO L82 PathProgramCache]: Analyzing trace with hash -358816815, now seen corresponding path program 1 times [2020-10-23 18:44:52,627 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:44:52,627 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74775155] [2020-10-23 18:44:52,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:44:52,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:44:53,017 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-23 18:44:53,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:44:53,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:44:53,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-23 18:44:53,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:44:53,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-23 18:44:53,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:44:53,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:44:53,079 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74775155] [2020-10-23 18:44:53,080 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:44:53,080 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 18:44:53,080 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301138955] [2020-10-23 18:44:53,082 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-23 18:44:53,082 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:44:53,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-23 18:44:53,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-23 18:44:53,083 INFO L87 Difference]: Start difference. First operand 119 states and 165 transitions. Second operand 6 states. [2020-10-23 18:44:53,255 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-10-23 18:44:54,008 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-23 18:44:54,236 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-10-23 18:44:54,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:44:54,584 INFO L93 Difference]: Finished difference Result 119 states and 165 transitions. [2020-10-23 18:44:54,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 18:44:54,585 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 39 [2020-10-23 18:44:54,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:44:54,586 INFO L225 Difference]: With dead ends: 119 [2020-10-23 18:44:54,586 INFO L226 Difference]: Without dead ends: 0 [2020-10-23 18:44:54,588 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-23 18:44:54,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-23 18:44:54,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-23 18:44:54,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-23 18:44:54,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-23 18:44:54,589 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 39 [2020-10-23 18:44:54,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:44:54,589 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-23 18:44:54,589 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-23 18:44:54,589 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-23 18:44:54,589 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-23 18:44:54,589 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 18:44:54,591 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-23 18:44:55,215 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 19 [2020-10-23 18:44:55,350 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 19 [2020-10-23 18:44:55,509 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 16 [2020-10-23 18:44:55,863 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 127 [2020-10-23 18:44:56,020 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 19 [2020-10-23 18:44:56,151 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 19 [2020-10-23 18:44:56,366 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 19 [2020-10-23 18:44:56,371 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2020-10-23 18:44:56,371 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 3) the Hoare annotation is: true [2020-10-23 18:44:56,372 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2020-10-23 18:44:56,372 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-23 18:44:56,372 INFO L277 CegarLoopResult]: At program point L321(line 321) the Hoare annotation is: true [2020-10-23 18:44:56,372 INFO L274 CegarLoopResult]: For program point L322-1(line 322) no Hoare annotation was computed. [2020-10-23 18:44:56,372 INFO L274 CegarLoopResult]: For program point L321-1(line 321) no Hoare annotation was computed. [2020-10-23 18:44:56,372 INFO L274 CegarLoopResult]: For program point Id_MCDC_113EXIT(lines 305 324) no Hoare annotation was computed. [2020-10-23 18:44:56,373 INFO L277 CegarLoopResult]: At program point Id_MCDC_113ENTRY(lines 305 324) the Hoare annotation is: true [2020-10-23 18:44:56,373 INFO L274 CegarLoopResult]: For program point Id_MCDC_113FINAL(lines 305 324) no Hoare annotation was computed. [2020-10-23 18:44:56,373 INFO L277 CegarLoopResult]: At program point L315(line 315) the Hoare annotation is: true [2020-10-23 18:44:56,373 INFO L274 CegarLoopResult]: For program point L315-1(line 315) no Hoare annotation was computed. [2020-10-23 18:44:56,373 INFO L274 CegarLoopResult]: For program point L313(lines 313 320) no Hoare annotation was computed. [2020-10-23 18:44:56,373 INFO L274 CegarLoopResult]: For program point L313-2(lines 313 320) no Hoare annotation was computed. [2020-10-23 18:44:56,373 INFO L274 CegarLoopResult]: For program point L309(lines 309 312) no Hoare annotation was computed. [2020-10-23 18:44:56,373 INFO L277 CegarLoopResult]: At program point L322(line 322) the Hoare annotation is: true [2020-10-23 18:44:56,374 INFO L274 CegarLoopResult]: For program point L386-1(lines 386 389) no Hoare annotation was computed. [2020-10-23 18:44:56,374 INFO L270 CegarLoopResult]: At program point Id_MCDC_115ENTRY(lines 356 424) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2020-10-23 18:44:56,374 INFO L274 CegarLoopResult]: For program point Id_MCDC_115FINAL(lines 356 424) no Hoare annotation was computed. [2020-10-23 18:44:56,374 INFO L277 CegarLoopResult]: At program point L403(line 403) the Hoare annotation is: true [2020-10-23 18:44:56,374 INFO L274 CegarLoopResult]: For program point L403-1(lines 403 406) no Hoare annotation was computed. [2020-10-23 18:44:56,374 INFO L274 CegarLoopResult]: For program point L383-2(lines 383 421) no Hoare annotation was computed. [2020-10-23 18:44:56,374 INFO L277 CegarLoopResult]: At program point L383-3(lines 383 421) the Hoare annotation is: true [2020-10-23 18:44:56,375 INFO L277 CegarLoopResult]: At program point L396(line 396) the Hoare annotation is: true [2020-10-23 18:44:56,375 INFO L274 CegarLoopResult]: For program point L396-1(lines 396 399) no Hoare annotation was computed. [2020-10-23 18:44:56,375 INFO L277 CegarLoopResult]: At program point L413(line 413) the Hoare annotation is: true [2020-10-23 18:44:56,375 INFO L274 CegarLoopResult]: For program point L413-1(line 413) no Hoare annotation was computed. [2020-10-23 18:44:56,376 INFO L274 CegarLoopResult]: For program point L401-2(lines 401 418) no Hoare annotation was computed. [2020-10-23 18:44:56,376 INFO L277 CegarLoopResult]: At program point L401-3(lines 401 418) the Hoare annotation is: true [2020-10-23 18:44:56,376 INFO L274 CegarLoopResult]: For program point L401-4(lines 401 418) no Hoare annotation was computed. [2020-10-23 18:44:56,376 INFO L274 CegarLoopResult]: For program point Id_MCDC_115EXIT(lines 356 424) no Hoare annotation was computed. [2020-10-23 18:44:56,376 INFO L274 CegarLoopResult]: For program point L414(lines 414 417) no Hoare annotation was computed. [2020-10-23 18:44:56,377 INFO L274 CegarLoopResult]: For program point L381(lines 381 422) no Hoare annotation was computed. [2020-10-23 18:44:56,377 INFO L274 CegarLoopResult]: For program point L377-2(lines 377 380) no Hoare annotation was computed. [2020-10-23 18:44:56,377 INFO L277 CegarLoopResult]: At program point L377-3(lines 377 380) the Hoare annotation is: true [2020-10-23 18:44:56,378 INFO L274 CegarLoopResult]: For program point L377-4(lines 357 424) no Hoare annotation was computed. [2020-10-23 18:44:56,378 INFO L277 CegarLoopResult]: At program point L390(line 390) the Hoare annotation is: true [2020-10-23 18:44:56,378 INFO L274 CegarLoopResult]: For program point L390-1(lines 390 393) no Hoare annotation was computed. [2020-10-23 18:44:56,378 INFO L277 CegarLoopResult]: At program point L386(line 386) the Hoare annotation is: true [2020-10-23 18:44:56,378 INFO L274 CegarLoopResult]: For program point Id_MCDC_114EXIT(lines 325 355) no Hoare annotation was computed. [2020-10-23 18:44:56,379 INFO L274 CegarLoopResult]: For program point L343(lines 343 348) no Hoare annotation was computed. [2020-10-23 18:44:56,379 INFO L274 CegarLoopResult]: For program point L343-1(lines 341 353) no Hoare annotation was computed. [2020-10-23 18:44:56,379 INFO L274 CegarLoopResult]: For program point L341(line 341) no Hoare annotation was computed. [2020-10-23 18:44:56,379 INFO L274 CegarLoopResult]: For program point L341-2(line 341) no Hoare annotation was computed. [2020-10-23 18:44:56,379 INFO L274 CegarLoopResult]: For program point L341-3(line 341) no Hoare annotation was computed. [2020-10-23 18:44:56,379 INFO L274 CegarLoopResult]: For program point L341-5(lines 341 353) no Hoare annotation was computed. [2020-10-23 18:44:56,380 INFO L274 CegarLoopResult]: For program point L333-1(lines 333 340) no Hoare annotation was computed. [2020-10-23 18:44:56,380 INFO L277 CegarLoopResult]: At program point L333-3(lines 333 340) the Hoare annotation is: true [2020-10-23 18:44:56,380 INFO L274 CegarLoopResult]: For program point L329(lines 329 332) no Hoare annotation was computed. [2020-10-23 18:44:56,380 INFO L274 CegarLoopResult]: For program point L333-4(lines 333 340) no Hoare annotation was computed. [2020-10-23 18:44:56,380 INFO L277 CegarLoopResult]: At program point Id_MCDC_114ENTRY(lines 325 355) the Hoare annotation is: true [2020-10-23 18:44:56,380 INFO L274 CegarLoopResult]: For program point Id_MCDC_114FINAL(lines 325 355) no Hoare annotation was computed. [2020-10-23 18:44:56,380 INFO L274 CegarLoopResult]: For program point L336(lines 336 339) no Hoare annotation was computed. [2020-10-23 18:44:56,380 INFO L274 CegarLoopResult]: For program point L286(lines 286 294) no Hoare annotation was computed. [2020-10-23 18:44:56,381 INFO L274 CegarLoopResult]: For program point Id_MCDC_110FINAL(lines 274 304) no Hoare annotation was computed. [2020-10-23 18:44:56,381 INFO L274 CegarLoopResult]: For program point Id_MCDC_110EXIT(lines 274 304) no Hoare annotation was computed. [2020-10-23 18:44:56,381 INFO L274 CegarLoopResult]: For program point L280(lines 280 294) no Hoare annotation was computed. [2020-10-23 18:44:56,382 INFO L277 CegarLoopResult]: At program point Id_MCDC_110ENTRY(lines 274 304) the Hoare annotation is: true [2020-10-23 18:44:56,382 INFO L274 CegarLoopResult]: For program point L298(line 298) no Hoare annotation was computed. [2020-10-23 18:44:56,383 INFO L277 CegarLoopResult]: At program point L297(line 297) the Hoare annotation is: true [2020-10-23 18:44:56,384 INFO L277 CegarLoopResult]: At program point L297-1(line 297) the Hoare annotation is: true [2020-10-23 18:44:56,384 INFO L274 CegarLoopResult]: For program point L295-1(lines 275 304) no Hoare annotation was computed. [2020-10-23 18:44:56,385 INFO L274 CegarLoopResult]: For program point L295-2(lines 295 302) no Hoare annotation was computed. [2020-10-23 18:44:56,385 INFO L274 CegarLoopResult]: For program point L478(lines 478 481) no Hoare annotation was computed. [2020-10-23 18:44:56,386 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 452 484) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|) (= |old(~Id_MCDC_132~0)| ~Id_MCDC_132~0)) [2020-10-23 18:44:56,387 INFO L274 CegarLoopResult]: For program point mainFINAL(lines 452 484) no Hoare annotation was computed. [2020-10-23 18:44:56,387 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 452 484) no Hoare annotation was computed. [2020-10-23 18:44:56,387 INFO L270 CegarLoopResult]: At program point L483(line 483) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|) (= |old(~Id_MCDC_132~0)| ~Id_MCDC_132~0)) [2020-10-23 18:44:56,387 INFO L274 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 5 7) no Hoare annotation was computed. [2020-10-23 18:44:56,387 INFO L274 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed. [2020-10-23 18:44:56,388 INFO L274 CegarLoopResult]: For program point L6-2(lines 5 7) no Hoare annotation was computed. [2020-10-23 18:44:56,388 INFO L274 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 5 7) no Hoare annotation was computed. [2020-10-23 18:44:56,388 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-23 18:44:56,389 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#t~string23.base)| |#t~string23.base|) (= |old(~Id_MCDC_128~0.offset)| ~Id_MCDC_128~0.offset) (= |old(~#Id_MCDC_130~0.base)| |~#Id_MCDC_130~0.base|) (= |old(~Id_MCDC_122~0)| ~Id_MCDC_122~0) (= |old(#length)| |#length|) (= |old(~Id_MCDC_127~0.base)| ~Id_MCDC_127~0.base) (= |#t~string6.base| |old(#t~string6.base)|) (= ~Id_MCDC_127~0.offset |old(~Id_MCDC_127~0.offset)|) (= |old(#valid)| |#valid|) (= |old(#NULL.base)| |#NULL.base|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~Id_MCDC_125~0.base |old(~Id_MCDC_125~0.base)|) (= |old(#t~string70.base)| |#t~string70.base|) (= |old(~Id_MCDC_126~0.offset)| ~Id_MCDC_126~0.offset) (= |#t~string4.base| |old(#t~string4.base)|) (= |#t~string69.base| |old(#t~string69.base)|) (= |old(#t~string42.base)| |#t~string42.base|) (= |#t~string21.base| |old(#t~string21.base)|) (= |old(~Id_MCDC_125~0.offset)| ~Id_MCDC_125~0.offset) (= |#t~string42.offset| |old(#t~string42.offset)|) (= |#t~string37.offset| |old(#t~string37.offset)|) (= |old(~Id_MCDC_123~0)| ~Id_MCDC_123~0) (= |old(#t~string37.base)| |#t~string37.base|) (= |old(#t~string4.offset)| |#t~string4.offset|) (= |#t~string21.offset| |old(#t~string21.offset)|) (= |~#Id_MCDC_131~0.base| |old(~#Id_MCDC_131~0.base)|) (= |old(#t~string70.offset)| |#t~string70.offset|) (= |old(#t~string16.base)| |#t~string16.base|) (= |old(#t~string16.offset)| |#t~string16.offset|) (= |old(#t~string69.offset)| |#t~string69.offset|) (= |old(#t~string6.offset)| |#t~string6.offset|) (= |old(~Id_MCDC_129~0.base)| ~Id_MCDC_129~0.base) (= ~Id_MCDC_128~0.base |old(~Id_MCDC_128~0.base)|) (= |old(~Id_MCDC_124~0)| ~Id_MCDC_124~0) (= |#t~string23.offset| |old(#t~string23.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(~Id_MCDC_126~0.base)| ~Id_MCDC_126~0.base) (= ~Id_MCDC_129~0.offset |old(~Id_MCDC_129~0.offset)|) (= |~#Id_MCDC_130~0.offset| |old(~#Id_MCDC_130~0.offset)|) (= |old(~Id_MCDC_132~0)| ~Id_MCDC_132~0) (= |~#Id_MCDC_131~0.offset| |old(~#Id_MCDC_131~0.offset)|)) [2020-10-23 18:44:56,389 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-23 18:44:56,389 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-23 18:44:56,389 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-23 18:44:56,389 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-23 18:44:56,389 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-23 18:44:56,389 INFO L274 CegarLoopResult]: For program point avoid_zeroEXIT(lines 9 15) no Hoare annotation was computed. [2020-10-23 18:44:56,390 INFO L274 CegarLoopResult]: For program point L11(lines 11 14) no Hoare annotation was computed. [2020-10-23 18:44:56,390 INFO L274 CegarLoopResult]: For program point L11-2(lines 9 15) no Hoare annotation was computed. [2020-10-23 18:44:56,390 INFO L277 CegarLoopResult]: At program point avoid_zeroENTRY(lines 9 15) the Hoare annotation is: true [2020-10-23 18:44:56,390 INFO L277 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 485 492) the Hoare annotation is: true [2020-10-23 18:44:56,390 INFO L274 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 485 492) no Hoare annotation was computed. [2020-10-23 18:44:56,390 INFO L270 CegarLoopResult]: At program point L489(line 489) the Hoare annotation is: (not (= |__VERIFIER_assert_#in~Id_MCDC_121| 1)) [2020-10-23 18:44:56,390 INFO L274 CegarLoopResult]: For program point L489-1(line 489) no Hoare annotation was computed. [2020-10-23 18:44:56,390 INFO L274 CegarLoopResult]: For program point L487(lines 487 490) no Hoare annotation was computed. [2020-10-23 18:44:56,391 INFO L274 CegarLoopResult]: For program point L487-2(lines 485 492) no Hoare annotation was computed. [2020-10-23 18:44:56,391 INFO L270 CegarLoopResult]: At program point Id_MCDC_117ENTRY(lines 425 444) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|) (= |old(~Id_MCDC_132~0)| ~Id_MCDC_132~0)) [2020-10-23 18:44:56,391 INFO L274 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-10-23 18:44:56,391 INFO L274 CegarLoopResult]: For program point Id_MCDC_117FINAL(lines 425 444) no Hoare annotation was computed. [2020-10-23 18:44:56,391 INFO L277 CegarLoopResult]: At program point L430(line 430) the Hoare annotation is: true [2020-10-23 18:44:56,391 INFO L274 CegarLoopResult]: For program point L430-1(line 430) no Hoare annotation was computed. [2020-10-23 18:44:56,391 INFO L274 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-10-23 18:44:56,391 INFO L274 CegarLoopResult]: For program point L433-2(lines 433 440) no Hoare annotation was computed. [2020-10-23 18:44:56,392 INFO L274 CegarLoopResult]: For program point L431-2(lines 431 441) no Hoare annotation was computed. [2020-10-23 18:44:56,396 INFO L277 CegarLoopResult]: At program point L431-3(lines 431 441) the Hoare annotation is: true [2020-10-23 18:44:56,397 INFO L277 CegarLoopResult]: At program point L431-4(lines 431 441) the Hoare annotation is: true [2020-10-23 18:44:56,397 INFO L274 CegarLoopResult]: For program point Id_MCDC_117EXIT(lines 425 444) no Hoare annotation was computed. [2020-10-23 18:44:56,398 INFO L270 CegarLoopResult]: At program point L449(line 449) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|) (= |old(~Id_MCDC_132~0)| ~Id_MCDC_132~0)) [2020-10-23 18:44:56,402 INFO L270 CegarLoopResult]: At program point Id_MCDC_118ENTRY(lines 445 451) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|) (= |old(~Id_MCDC_132~0)| ~Id_MCDC_132~0)) [2020-10-23 18:44:56,402 INFO L274 CegarLoopResult]: For program point Id_MCDC_118FINAL(lines 445 451) no Hoare annotation was computed. [2020-10-23 18:44:56,403 INFO L274 CegarLoopResult]: For program point Id_MCDC_118EXIT(lines 445 451) no Hoare annotation was computed. [2020-10-23 18:44:56,403 INFO L277 CegarLoopResult]: At program point Id_MCDC_107ENTRY(lines 218 273) the Hoare annotation is: true [2020-10-23 18:44:56,403 INFO L274 CegarLoopResult]: For program point L254(lines 254 257) no Hoare annotation was computed. [2020-10-23 18:44:56,403 INFO L274 CegarLoopResult]: For program point L246(line 246) no Hoare annotation was computed. [2020-10-23 18:44:56,403 INFO L274 CegarLoopResult]: For program point Id_MCDC_107FINAL(lines 218 273) no Hoare annotation was computed. [2020-10-23 18:44:56,403 INFO L274 CegarLoopResult]: For program point L242(line 242) no Hoare annotation was computed. [2020-10-23 18:44:56,403 INFO L274 CegarLoopResult]: For program point L242-2(line 242) no Hoare annotation was computed. [2020-10-23 18:44:56,403 INFO L277 CegarLoopResult]: At program point L234(lines 234 250) the Hoare annotation is: true [2020-10-23 18:44:56,404 INFO L274 CegarLoopResult]: For program point L259(line 259) no Hoare annotation was computed. [2020-10-23 18:44:56,404 INFO L274 CegarLoopResult]: For program point L259-2(line 259) no Hoare annotation was computed. [2020-10-23 18:44:56,404 INFO L274 CegarLoopResult]: For program point L259-3(line 259) no Hoare annotation was computed. [2020-10-23 18:44:56,407 INFO L274 CegarLoopResult]: For program point L259-5(lines 259 271) no Hoare annotation was computed. [2020-10-23 18:44:56,407 INFO L274 CegarLoopResult]: For program point L251-1(lines 251 258) no Hoare annotation was computed. [2020-10-23 18:44:56,407 INFO L277 CegarLoopResult]: At program point L251-3(lines 251 258) the Hoare annotation is: true [2020-10-23 18:44:56,407 INFO L274 CegarLoopResult]: For program point L251-4(lines 251 258) no Hoare annotation was computed. [2020-10-23 18:44:56,407 INFO L274 CegarLoopResult]: For program point L243(line 243) no Hoare annotation was computed. [2020-10-23 18:44:56,407 INFO L274 CegarLoopResult]: For program point L239(line 239) no Hoare annotation was computed. [2020-10-23 18:44:56,408 INFO L274 CegarLoopResult]: For program point L239-2(line 239) no Hoare annotation was computed. [2020-10-23 18:44:56,408 INFO L274 CegarLoopResult]: For program point L227(lines 227 233) no Hoare annotation was computed. [2020-10-23 18:44:56,408 INFO L274 CegarLoopResult]: For program point L227-2(lines 227 233) no Hoare annotation was computed. [2020-10-23 18:44:56,408 INFO L274 CegarLoopResult]: For program point L223(lines 223 226) no Hoare annotation was computed. [2020-10-23 18:44:56,408 INFO L274 CegarLoopResult]: For program point L248(line 248) no Hoare annotation was computed. [2020-10-23 18:44:56,408 INFO L274 CegarLoopResult]: For program point L240(line 240) no Hoare annotation was computed. [2020-10-23 18:44:56,408 INFO L274 CegarLoopResult]: For program point L236(line 236) no Hoare annotation was computed. [2020-10-23 18:44:56,408 INFO L274 CegarLoopResult]: For program point L236-2(line 236) no Hoare annotation was computed. [2020-10-23 18:44:56,408 INFO L274 CegarLoopResult]: For program point L261(lines 261 266) no Hoare annotation was computed. [2020-10-23 18:44:56,409 INFO L274 CegarLoopResult]: For program point L261-1(lines 259 271) no Hoare annotation was computed. [2020-10-23 18:44:56,409 INFO L274 CegarLoopResult]: For program point L245(line 245) no Hoare annotation was computed. [2020-10-23 18:44:56,409 INFO L274 CegarLoopResult]: For program point L245-2(line 245) no Hoare annotation was computed. [2020-10-23 18:44:56,409 INFO L274 CegarLoopResult]: For program point L237(line 237) no Hoare annotation was computed. [2020-10-23 18:44:56,409 INFO L274 CegarLoopResult]: For program point L229(lines 229 232) no Hoare annotation was computed. [2020-10-23 18:44:56,409 INFO L274 CegarLoopResult]: For program point Id_MCDC_107EXIT(lines 218 273) no Hoare annotation was computed. [2020-10-23 18:44:56,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 06:44:56 BoogieIcfgContainer [2020-10-23 18:44:56,425 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 18:44:56,427 INFO L168 Benchmark]: Toolchain (without parser) took 8377.80 ms. Allocated memory was 151.0 MB in the beginning and 231.7 MB in the end (delta: 80.7 MB). Free memory was 125.2 MB in the beginning and 80.0 MB in the end (delta: 45.2 MB). Peak memory consumption was 129.0 MB. Max. memory is 8.0 GB. [2020-10-23 18:44:56,428 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory is still 123.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 18:44:56,429 INFO L168 Benchmark]: CACSL2BoogieTranslator took 546.27 ms. Allocated memory is still 151.0 MB. Free memory was 124.5 MB in the beginning and 107.3 MB in the end (delta: 17.2 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. [2020-10-23 18:44:56,430 INFO L168 Benchmark]: Boogie Preprocessor took 102.17 ms. Allocated memory is still 151.0 MB. Free memory was 107.3 MB in the beginning and 103.5 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-23 18:44:56,432 INFO L168 Benchmark]: RCFGBuilder took 1082.96 ms. Allocated memory is still 151.0 MB. Free memory was 103.5 MB in the beginning and 75.1 MB in the end (delta: 28.4 MB). Peak memory consumption was 28.5 MB. Max. memory is 8.0 GB. [2020-10-23 18:44:56,433 INFO L168 Benchmark]: TraceAbstraction took 6631.33 ms. Allocated memory was 151.0 MB in the beginning and 231.7 MB in the end (delta: 80.7 MB). Free memory was 74.6 MB in the beginning and 80.0 MB in the end (delta: -5.3 MB). Peak memory consumption was 78.5 MB. Max. memory is 8.0 GB. [2020-10-23 18:44:56,447 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory is still 123.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 546.27 ms. Allocated memory is still 151.0 MB. Free memory was 124.5 MB in the beginning and 107.3 MB in the end (delta: 17.2 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 102.17 ms. Allocated memory is still 151.0 MB. Free memory was 107.3 MB in the beginning and 103.5 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1082.96 ms. Allocated memory is still 151.0 MB. Free memory was 103.5 MB in the beginning and 75.1 MB in the end (delta: 28.4 MB). Peak memory consumption was 28.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 6631.33 ms. Allocated memory was 151.0 MB in the beginning and 231.7 MB in the end (delta: 80.7 MB). Free memory was 74.6 MB in the beginning and 80.0 MB in the end (delta: -5.3 MB). Peak memory consumption was 78.5 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: 401]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 431]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 251]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 234]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 377]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 383]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 333]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 14 procedures, 135 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.7s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 3.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 275 SDtfs, 401 SDslu, 166 SDs, 0 SdLazy, 407 SolverSat, 82 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=131occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 36 LocationsWithAnnotation, 80 PreInvPairs, 95 NumberOfFragments, 270 HoareAnnotationTreeSize, 80 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 36 FomulaSimplificationsInter, 2612 FormulaSimplificationTreeSizeReductionInter, 1.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 78 NumberOfCodeBlocks, 78 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 76 ConstructedInterpolants, 0 QuantifiedInterpolants, 13756 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, 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...