java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/loop-industry-pattern/aiob_4.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 02:13:07,780 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 02:13:07,783 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 02:13:07,800 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 02:13:07,800 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 02:13:07,801 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 02:13:07,803 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 02:13:07,807 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 02:13:07,809 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 02:13:07,809 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 02:13:07,814 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 02:13:07,815 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 02:13:07,815 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 02:13:07,818 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 02:13:07,819 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 02:13:07,820 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 02:13:07,821 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 02:13:07,822 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 02:13:07,824 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 02:13:07,825 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 02:13:07,827 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 02:13:07,829 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 02:13:07,830 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 02:13:07,831 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 02:13:07,833 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 02:13:07,834 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 02:13:07,834 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 02:13:07,838 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 02:13:07,839 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 02:13:07,840 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 02:13:07,840 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 02:13:07,841 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 02:13:07,842 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 02:13:07,844 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 02:13:07,845 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 02:13:07,845 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 02:13:07,846 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 02:13:07,846 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 02:13:07,846 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 02:13:07,847 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 02:13:07,848 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 02:13:07,848 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-10 02:13:07,862 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 02:13:07,863 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 02:13:07,865 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 02:13:07,865 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 02:13:07,867 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 02:13:07,867 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 02:13:07,867 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 02:13:07,867 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 02:13:07,868 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 02:13:07,868 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 02:13:07,868 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 02:13:07,869 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 02:13:07,869 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 02:13:07,870 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 02:13:07,870 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 02:13:07,870 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 02:13:07,871 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 02:13:07,871 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 02:13:07,871 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 02:13:07,871 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 02:13:07,871 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 02:13:07,871 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 02:13:07,872 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 02:13:07,872 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:13:07,872 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 02:13:07,872 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 02:13:07,872 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 02:13:07,873 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 02:13:07,873 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 02:13:07,873 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 02:13:07,901 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 02:13:07,915 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 02:13:07,918 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 02:13:07,920 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 02:13:07,920 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 02:13:07,921 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/aiob_4.c.v+lhb-reducer.c [2019-09-10 02:13:07,981 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/376913b47/651ef7c7476945b4b3c30768812c1abe/FLAGe9fcfb21c [2019-09-10 02:13:08,477 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 02:13:08,483 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/aiob_4.c.v+lhb-reducer.c [2019-09-10 02:13:08,497 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/376913b47/651ef7c7476945b4b3c30768812c1abe/FLAGe9fcfb21c [2019-09-10 02:13:08,834 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/376913b47/651ef7c7476945b4b3c30768812c1abe [2019-09-10 02:13:08,845 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 02:13:08,847 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 02:13:08,847 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 02:13:08,848 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 02:13:08,851 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 02:13:08,852 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:13:08" (1/1) ... [2019-09-10 02:13:08,854 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c4c0642 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:13:08, skipping insertion in model container [2019-09-10 02:13:08,855 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:13:08" (1/1) ... [2019-09-10 02:13:08,862 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 02:13:08,911 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 02:13:09,327 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:13:09,338 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 02:13:09,496 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:13:09,515 INFO L192 MainTranslator]: Completed translation [2019-09-10 02:13:09,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:13:09 WrapperNode [2019-09-10 02:13:09,515 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 02:13:09,516 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 02:13:09,516 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 02:13:09,516 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 02:13:09,526 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:13:09" (1/1) ... [2019-09-10 02:13:09,527 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:13:09" (1/1) ... [2019-09-10 02:13:09,549 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:13:09" (1/1) ... [2019-09-10 02:13:09,549 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:13:09" (1/1) ... [2019-09-10 02:13:09,593 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:13:09" (1/1) ... [2019-09-10 02:13:09,601 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:13:09" (1/1) ... [2019-09-10 02:13:09,606 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:13:09" (1/1) ... [2019-09-10 02:13:09,615 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 02:13:09,617 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 02:13:09,617 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 02:13:09,618 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 02:13:09,621 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:13:09" (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 [2019-09-10 02:13:09,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 02:13:09,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 02:13:09,686 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 02:13:09,686 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 02:13:09,687 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_89 [2019-09-10 02:13:09,687 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2019-09-10 02:13:09,687 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 02:13:09,687 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-10 02:13:09,687 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 02:13:09,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 02:13:09,688 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 02:13:09,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-10 02:13:09,688 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 02:13:09,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 02:13:09,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 02:13:09,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 02:13:09,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 02:13:10,718 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 02:13:10,719 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-10 02:13:10,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:13:10 BoogieIcfgContainer [2019-09-10 02:13:10,720 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 02:13:10,722 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 02:13:10,722 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 02:13:10,725 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 02:13:10,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 02:13:08" (1/3) ... [2019-09-10 02:13:10,726 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fe0f91a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:13:10, skipping insertion in model container [2019-09-10 02:13:10,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:13:09" (2/3) ... [2019-09-10 02:13:10,728 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fe0f91a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:13:10, skipping insertion in model container [2019-09-10 02:13:10,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:13:10" (3/3) ... [2019-09-10 02:13:10,731 INFO L109 eAbstractionObserver]: Analyzing ICFG aiob_4.c.v+lhb-reducer.c [2019-09-10 02:13:10,741 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 02:13:10,749 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 02:13:10,765 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 02:13:10,797 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 02:13:10,798 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 02:13:10,798 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 02:13:10,798 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 02:13:10,799 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 02:13:10,799 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 02:13:10,799 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 02:13:10,799 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 02:13:10,821 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states. [2019-09-10 02:13:10,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2019-09-10 02:13:10,834 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:13:10,835 INFO L399 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, 1] [2019-09-10 02:13:10,837 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:13:10,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:13:10,842 INFO L82 PathProgramCache]: Analyzing trace with hash 377540282, now seen corresponding path program 1 times [2019-09-10 02:13:10,844 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:13:10,890 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:13:10,890 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:13:10,890 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:13:10,890 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:13:11,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:13:11,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:13:11,863 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:13:11,863 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-09-10 02:13:11,864 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:13:11,870 INFO L454 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-09-10 02:13:11,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-09-10 02:13:11,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2019-09-10 02:13:11,890 INFO L87 Difference]: Start difference. First operand 55 states. Second operand 19 states. [2019-09-10 02:13:13,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:13:13,002 INFO L93 Difference]: Finished difference Result 85 states and 107 transitions. [2019-09-10 02:13:13,003 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-09-10 02:13:13,004 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 48 [2019-09-10 02:13:13,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:13:13,014 INFO L225 Difference]: With dead ends: 85 [2019-09-10 02:13:13,014 INFO L226 Difference]: Without dead ends: 57 [2019-09-10 02:13:13,016 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=63, Invalid=443, Unknown=0, NotChecked=0, Total=506 [2019-09-10 02:13:13,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2019-09-10 02:13:13,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 54. [2019-09-10 02:13:13,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2019-09-10 02:13:13,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 54 transitions. [2019-09-10 02:13:13,059 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 54 transitions. Word has length 48 [2019-09-10 02:13:13,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:13:13,060 INFO L475 AbstractCegarLoop]: Abstraction has 54 states and 54 transitions. [2019-09-10 02:13:13,060 INFO L476 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-09-10 02:13:13,060 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 54 transitions. [2019-09-10 02:13:13,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-09-10 02:13:13,062 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:13:13,062 INFO L399 BasicCegarLoop]: trace histogram [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] [2019-09-10 02:13:13,062 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:13:13,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:13:13,063 INFO L82 PathProgramCache]: Analyzing trace with hash -849330057, now seen corresponding path program 1 times [2019-09-10 02:13:13,063 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:13:13,064 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:13:13,064 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:13:13,064 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:13:13,064 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:13:13,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:13:13,616 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:13:13,616 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:13:13,616 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 02:13:13,617 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 54 with the following transitions: [2019-09-10 02:13:13,620 INFO L207 CegarAbsIntRunner]: [0], [4], [7], [10], [14], [17], [20], [23], [27], [30], [33], [36], [40], [43], [46], [49], [53], [56], [59], [62], [66], [69], [72], [75], [79], [82], [85], [88], [92], [95], [98], [101], [105], [108], [111], [114], [118], [121], [123], [126], [129], [133], [136], [139], [142], [143], [175], [176], [180], [181], [182] [2019-09-10 02:13:13,706 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 02:13:13,706 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 02:13:13,772 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-10 02:13:13,774 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 47 root evaluator evaluations with a maximum evaluation depth of 0. Performed 47 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 76 variables. [2019-09-10 02:13:13,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:13:13,778 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-10 02:13:13,832 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-10 02:13:13,832 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-10 02:13:13,836 INFO L420 sIntCurrentIteration]: We unified 52 AI predicates to 52 [2019-09-10 02:13:13,836 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-10 02:13:13,839 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-10 02:13:13,840 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [20] total 20 [2019-09-10 02:13:13,840 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:13:13,843 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:13:13,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:13:13,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:13:13,844 INFO L87 Difference]: Start difference. First operand 54 states and 54 transitions. Second operand 2 states. [2019-09-10 02:13:13,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:13:13,845 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-10 02:13:13,845 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:13:13,845 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 53 [2019-09-10 02:13:13,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:13:13,846 INFO L225 Difference]: With dead ends: 2 [2019-09-10 02:13:13,847 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 02:13:13,848 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:13:13,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 02:13:13,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 02:13:13,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 02:13:13,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 02:13:13,850 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 53 [2019-09-10 02:13:13,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:13:13,850 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 02:13:13,850 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:13:13,850 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 02:13:13,851 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 02:13:13,856 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 02:13:13 BoogieIcfgContainer [2019-09-10 02:13:13,857 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 02:13:13,860 INFO L168 Benchmark]: Toolchain (without parser) took 5011.95 ms. Allocated memory was 133.7 MB in the beginning and 258.5 MB in the end (delta: 124.8 MB). Free memory was 88.1 MB in the beginning and 213.7 MB in the end (delta: -125.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-10 02:13:13,861 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 133.7 MB. Free memory was 108.2 MB in the beginning and 108.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 02:13:13,863 INFO L168 Benchmark]: CACSL2BoogieTranslator took 668.08 ms. Allocated memory was 133.7 MB in the beginning and 199.8 MB in the end (delta: 66.1 MB). Free memory was 87.9 MB in the beginning and 165.1 MB in the end (delta: -77.2 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. [2019-09-10 02:13:13,865 INFO L168 Benchmark]: Boogie Preprocessor took 98.98 ms. Allocated memory is still 199.8 MB. Free memory was 165.1 MB in the beginning and 160.1 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2019-09-10 02:13:13,866 INFO L168 Benchmark]: RCFGBuilder took 1103.36 ms. Allocated memory was 199.8 MB in the beginning and 226.0 MB in the end (delta: 26.2 MB). Free memory was 160.1 MB in the beginning and 178.8 MB in the end (delta: -18.7 MB). Peak memory consumption was 87.7 MB. Max. memory is 7.1 GB. [2019-09-10 02:13:13,868 INFO L168 Benchmark]: TraceAbstraction took 3135.11 ms. Allocated memory was 226.0 MB in the beginning and 258.5 MB in the end (delta: 32.5 MB). Free memory was 177.4 MB in the beginning and 213.7 MB in the end (delta: -36.2 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-10 02:13:13,881 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 133.7 MB. Free memory was 108.2 MB in the beginning and 108.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 668.08 ms. Allocated memory was 133.7 MB in the beginning and 199.8 MB in the end (delta: 66.1 MB). Free memory was 87.9 MB in the beginning and 165.1 MB in the end (delta: -77.2 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 98.98 ms. Allocated memory is still 199.8 MB. Free memory was 165.1 MB in the beginning and 160.1 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1103.36 ms. Allocated memory was 199.8 MB in the beginning and 226.0 MB in the end (delta: 26.2 MB). Free memory was 160.1 MB in the beginning and 178.8 MB in the end (delta: -18.7 MB). Peak memory consumption was 87.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3135.11 ms. Allocated memory was 226.0 MB in the beginning and 258.5 MB in the end (delta: 32.5 MB). Free memory was 177.4 MB in the beginning and 213.7 MB in the end (delta: -36.2 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 465]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 55 locations, 1 error locations. SAFE Result, 3.0s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 1.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 56 SDtfs, 93 SDslu, 737 SDs, 0 SdLazy, 743 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 76 GetRequests, 54 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=55occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 6.211538461538462 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 101 NumberOfCodeBlocks, 101 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 99 ConstructedInterpolants, 0 QuantifiedInterpolants, 34886 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 0/3 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...