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/array-tiling/skipped.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-09 05:34:28,610 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-09 05:34:28,613 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-09 05:34:28,631 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-09 05:34:28,631 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-09 05:34:28,633 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-09 05:34:28,635 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-09 05:34:28,639 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-09 05:34:28,644 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-09 05:34:28,647 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-09 05:34:28,650 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-09 05:34:28,651 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-09 05:34:28,651 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-09 05:34:28,655 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-09 05:34:28,656 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-09 05:34:28,657 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-09 05:34:28,658 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-09 05:34:28,659 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-09 05:34:28,664 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-09 05:34:28,668 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-09 05:34:28,673 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-09 05:34:28,675 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-09 05:34:28,676 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-09 05:34:28,677 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-09 05:34:28,681 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-09 05:34:28,681 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-09 05:34:28,681 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-09 05:34:28,684 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-09 05:34:28,685 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-09 05:34:28,687 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-09 05:34:28,687 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-09 05:34:28,690 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-09 05:34:28,691 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-09 05:34:28,691 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-09 05:34:28,694 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-09 05:34:28,694 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-09 05:34:28,695 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-09 05:34:28,695 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-09 05:34:28,695 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-09 05:34:28,697 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-09 05:34:28,698 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-09 05:34:28,700 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 [2019-09-09 05:34:28,716 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-09 05:34:28,716 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-09 05:34:28,717 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-09 05:34:28,717 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-09 05:34:28,718 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-09 05:34:28,718 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-09 05:34:28,718 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-09 05:34:28,718 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-09 05:34:28,719 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-09 05:34:28,719 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-09 05:34:28,720 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-09 05:34:28,720 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-09 05:34:28,720 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-09 05:34:28,720 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-09 05:34:28,721 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-09 05:34:28,721 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-09 05:34:28,721 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-09 05:34:28,721 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-09 05:34:28,721 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-09 05:34:28,722 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-09 05:34:28,722 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-09 05:34:28,722 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-09 05:34:28,722 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-09 05:34:28,723 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-09 05:34:28,723 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-09 05:34:28,723 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-09 05:34:28,723 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-09 05:34:28,724 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-09 05:34:28,724 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-09 05:34:28,724 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-09 05:34:28,755 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-09 05:34:28,769 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-09 05:34:28,773 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-09 05:34:28,774 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-09 05:34:28,775 INFO L275 PluginConnector]: CDTParser initialized [2019-09-09 05:34:28,776 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-tiling/skipped.c [2019-09-09 05:34:28,862 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4f9fde69/00b8e85308d14cf9982d0ceda9403973/FLAGb238916ca [2019-09-09 05:34:29,374 INFO L306 CDTParser]: Found 1 translation units. [2019-09-09 05:34:29,377 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-tiling/skipped.c [2019-09-09 05:34:29,385 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4f9fde69/00b8e85308d14cf9982d0ceda9403973/FLAGb238916ca [2019-09-09 05:34:29,700 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4f9fde69/00b8e85308d14cf9982d0ceda9403973 [2019-09-09 05:34:29,710 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-09 05:34:29,711 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-09 05:34:29,712 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-09 05:34:29,712 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-09 05:34:29,716 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-09 05:34:29,717 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.09 05:34:29" (1/1) ... [2019-09-09 05:34:29,721 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46c86bba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:34:29, skipping insertion in model container [2019-09-09 05:34:29,721 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.09 05:34:29" (1/1) ... [2019-09-09 05:34:29,729 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-09 05:34:29,756 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-09 05:34:29,938 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-09 05:34:29,951 INFO L188 MainTranslator]: Completed pre-run [2019-09-09 05:34:29,972 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-09 05:34:30,087 INFO L192 MainTranslator]: Completed translation [2019-09-09 05:34:30,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:34:30 WrapperNode [2019-09-09 05:34:30,089 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-09 05:34:30,089 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-09 05:34:30,090 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-09 05:34:30,090 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-09 05:34:30,101 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:34:30" (1/1) ... [2019-09-09 05:34:30,101 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:34:30" (1/1) ... [2019-09-09 05:34:30,111 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:34:30" (1/1) ... [2019-09-09 05:34:30,111 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:34:30" (1/1) ... [2019-09-09 05:34:30,120 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:34:30" (1/1) ... [2019-09-09 05:34:30,126 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:34:30" (1/1) ... [2019-09-09 05:34:30,128 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:34:30" (1/1) ... [2019-09-09 05:34:30,130 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-09 05:34:30,131 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-09 05:34:30,131 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-09 05:34:30,131 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-09 05:34:30,139 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:34:30" (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 [2019-09-09 05:34:30,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-09 05:34:30,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-09 05:34:30,200 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-09 05:34:30,200 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-09 05:34:30,200 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-09 05:34:30,200 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-09 05:34:30,200 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-09 05:34:30,200 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-09 05:34:30,200 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-09 05:34:30,200 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-09 05:34:30,201 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-09 05:34:30,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-09 05:34:30,201 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-09 05:34:30,201 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-09 05:34:30,201 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-09 05:34:30,201 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-09 05:34:30,566 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-09 05:34:30,567 INFO L283 CfgBuilder]: Removed 3 assume(true) statements. [2019-09-09 05:34:30,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.09 05:34:30 BoogieIcfgContainer [2019-09-09 05:34:30,568 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-09 05:34:30,569 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-09 05:34:30,569 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-09 05:34:30,573 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-09 05:34:30,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.09 05:34:29" (1/3) ... [2019-09-09 05:34:30,574 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@386b229 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.09 05:34:30, skipping insertion in model container [2019-09-09 05:34:30,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:34:30" (2/3) ... [2019-09-09 05:34:30,575 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@386b229 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.09 05:34:30, skipping insertion in model container [2019-09-09 05:34:30,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.09 05:34:30" (3/3) ... [2019-09-09 05:34:30,577 INFO L109 eAbstractionObserver]: Analyzing ICFG skipped.c [2019-09-09 05:34:30,587 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-09 05:34:30,595 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-09 05:34:30,613 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-09 05:34:30,644 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-09 05:34:30,644 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-09 05:34:30,644 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-09 05:34:30,644 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-09 05:34:30,645 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-09 05:34:30,645 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-09 05:34:30,645 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-09 05:34:30,646 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-09 05:34:30,663 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2019-09-09 05:34:30,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-09-09 05:34:30,674 INFO L391 BasicCegarLoop]: Found error trace [2019-09-09 05:34:30,675 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-09 05:34:30,678 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-09 05:34:30,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-09 05:34:30,684 INFO L82 PathProgramCache]: Analyzing trace with hash -446282704, now seen corresponding path program 1 times [2019-09-09 05:34:30,686 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-09 05:34:30,729 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 05:34:30,729 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-09 05:34:30,729 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 05:34:30,729 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-09 05:34:30,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-09 05:34:30,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-09 05:34:30,828 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-09 05:34:30,828 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-09 05:34:30,829 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-09 05:34:30,834 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-09 05:34:30,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-09 05:34:30,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-09 05:34:30,850 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 2 states. [2019-09-09 05:34:30,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-09 05:34:30,870 INFO L93 Difference]: Finished difference Result 31 states and 37 transitions. [2019-09-09 05:34:30,870 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-09 05:34:30,872 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-09-09 05:34:30,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-09 05:34:30,883 INFO L225 Difference]: With dead ends: 31 [2019-09-09 05:34:30,884 INFO L226 Difference]: Without dead ends: 26 [2019-09-09 05:34:30,886 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-09 05:34:30,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-09-09 05:34:30,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2019-09-09 05:34:30,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-09-09 05:34:30,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2019-09-09 05:34:30,930 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 16 [2019-09-09 05:34:30,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-09 05:34:30,930 INFO L475 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions. [2019-09-09 05:34:30,930 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-09 05:34:30,931 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2019-09-09 05:34:30,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-09-09 05:34:30,932 INFO L391 BasicCegarLoop]: Found error trace [2019-09-09 05:34:30,932 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-09 05:34:30,932 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-09 05:34:30,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-09 05:34:30,933 INFO L82 PathProgramCache]: Analyzing trace with hash -1281654888, now seen corresponding path program 1 times [2019-09-09 05:34:30,933 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-09 05:34:30,934 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 05:34:30,935 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-09 05:34:30,935 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 05:34:30,935 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-09 05:34:30,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-09 05:34:31,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-09 05:34:31,050 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-09 05:34:31,050 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-09 05:34:31,050 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-09 05:34:31,052 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-09 05:34:31,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-09 05:34:31,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-09 05:34:31,054 INFO L87 Difference]: Start difference. First operand 26 states and 30 transitions. Second operand 3 states. [2019-09-09 05:34:31,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-09 05:34:31,120 INFO L93 Difference]: Finished difference Result 28 states and 32 transitions. [2019-09-09 05:34:31,121 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-09 05:34:31,122 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2019-09-09 05:34:31,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-09 05:34:31,123 INFO L225 Difference]: With dead ends: 28 [2019-09-09 05:34:31,123 INFO L226 Difference]: Without dead ends: 28 [2019-09-09 05:34:31,125 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-09 05:34:31,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-09-09 05:34:31,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 27. [2019-09-09 05:34:31,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-09-09 05:34:31,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2019-09-09 05:34:31,132 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 16 [2019-09-09 05:34:31,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-09 05:34:31,132 INFO L475 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2019-09-09 05:34:31,133 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-09 05:34:31,133 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2019-09-09 05:34:31,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-09-09 05:34:31,134 INFO L391 BasicCegarLoop]: Found error trace [2019-09-09 05:34:31,134 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-09 05:34:31,134 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-09 05:34:31,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-09 05:34:31,135 INFO L82 PathProgramCache]: Analyzing trace with hash 1237885334, now seen corresponding path program 1 times [2019-09-09 05:34:31,135 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-09 05:34:31,137 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 05:34:31,137 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-09 05:34:31,137 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 05:34:31,137 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-09 05:34:31,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-09 05:34:31,219 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-09-09 05:34:31,219 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-09 05:34:31,220 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-09 05:34:31,220 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-09 05:34:31,221 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-09 05:34:31,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-09 05:34:31,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-09-09 05:34:31,222 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand 4 states. [2019-09-09 05:34:31,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-09 05:34:31,368 INFO L93 Difference]: Finished difference Result 32 states and 38 transitions. [2019-09-09 05:34:31,369 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-09 05:34:31,369 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2019-09-09 05:34:31,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-09 05:34:31,372 INFO L225 Difference]: With dead ends: 32 [2019-09-09 05:34:31,373 INFO L226 Difference]: Without dead ends: 32 [2019-09-09 05:34:31,375 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-09-09 05:34:31,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-09-09 05:34:31,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 28. [2019-09-09 05:34:31,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-09-09 05:34:31,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2019-09-09 05:34:31,384 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 18 [2019-09-09 05:34:31,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-09 05:34:31,385 INFO L475 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2019-09-09 05:34:31,385 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-09 05:34:31,386 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2019-09-09 05:34:31,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-09-09 05:34:31,387 INFO L391 BasicCegarLoop]: Found error trace [2019-09-09 05:34:31,387 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] [2019-09-09 05:34:31,388 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-09 05:34:31,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-09 05:34:31,388 INFO L82 PathProgramCache]: Analyzing trace with hash -1565802059, now seen corresponding path program 1 times [2019-09-09 05:34:31,388 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-09 05:34:31,391 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 05:34:31,392 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-09 05:34:31,392 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 05:34:31,392 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-09 05:34:31,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-09 05:34:31,474 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-09-09 05:34:31,475 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-09 05:34:31,475 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-09 05:34:31,477 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 24 with the following transitions: [2019-09-09 05:34:31,480 INFO L207 CegarAbsIntRunner]: [0], [1], [5], [8], [14], [16], [18], [25], [31], [33], [36], [40], [43], [47], [51], [59], [72], [75], [77], [83], [84], [85], [87] [2019-09-09 05:34:31,528 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-09 05:34:31,529 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-09 05:34:31,607 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-09 05:34:31,609 INFO L272 AbstractInterpreter]: Visited 7 different actions 7 times. Never merged. Never widened. Performed 24 root evaluator evaluations with a maximum evaluation depth of 3. Performed 24 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 28 variables. [2019-09-09 05:34:31,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-09 05:34:31,613 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-09 05:34:31,656 INFO L227 lantSequenceWeakener]: Weakened 5 states. On average, predicates are now at 77.5% of their original sizes. [2019-09-09 05:34:31,656 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-09 05:34:31,674 INFO L420 sIntCurrentIteration]: We unified 22 AI predicates to 22 [2019-09-09 05:34:31,675 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-09 05:34:31,676 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-09 05:34:31,676 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2019-09-09 05:34:31,676 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-09 05:34:31,677 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-09 05:34:31,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-09 05:34:31,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-09-09 05:34:31,678 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 4 states. [2019-09-09 05:34:31,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-09 05:34:31,680 INFO L93 Difference]: Finished difference Result 7 states and 6 transitions. [2019-09-09 05:34:31,680 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-09 05:34:31,681 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2019-09-09 05:34:31,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-09 05:34:31,681 INFO L225 Difference]: With dead ends: 7 [2019-09-09 05:34:31,682 INFO L226 Difference]: Without dead ends: 0 [2019-09-09 05:34:31,682 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-09-09 05:34:31,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-09 05:34:31,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-09 05:34:31,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-09 05:34:31,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-09 05:34:31,684 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2019-09-09 05:34:31,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-09 05:34:31,684 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-09 05:34:31,684 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-09 05:34:31,684 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-09 05:34:31,685 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-09 05:34:31,690 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.09 05:34:31 BoogieIcfgContainer [2019-09-09 05:34:31,690 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-09 05:34:31,694 INFO L168 Benchmark]: Toolchain (without parser) took 1981.24 ms. Allocated memory was 134.7 MB in the beginning and 202.4 MB in the end (delta: 67.6 MB). Free memory was 89.3 MB in the beginning and 102.1 MB in the end (delta: -12.8 MB). Peak memory consumption was 54.9 MB. Max. memory is 7.1 GB. [2019-09-09 05:34:31,695 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 134.7 MB. Free memory is still 107.6 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-09-09 05:34:31,696 INFO L168 Benchmark]: CACSL2BoogieTranslator took 376.96 ms. Allocated memory was 134.7 MB in the beginning and 202.4 MB in the end (delta: 67.6 MB). Free memory was 89.3 MB in the beginning and 179.6 MB in the end (delta: -90.3 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. [2019-09-09 05:34:31,697 INFO L168 Benchmark]: Boogie Preprocessor took 41.13 ms. Allocated memory is still 202.4 MB. Free memory was 179.6 MB in the beginning and 177.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-09-09 05:34:31,698 INFO L168 Benchmark]: RCFGBuilder took 437.19 ms. Allocated memory is still 202.4 MB. Free memory was 177.5 MB in the beginning and 161.0 MB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 7.1 GB. [2019-09-09 05:34:31,699 INFO L168 Benchmark]: TraceAbstraction took 1121.54 ms. Allocated memory is still 202.4 MB. Free memory was 160.2 MB in the beginning and 102.1 MB in the end (delta: 58.1 MB). Peak memory consumption was 58.1 MB. Max. memory is 7.1 GB. [2019-09-09 05:34:31,703 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 134.7 MB. Free memory is still 107.6 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 376.96 ms. Allocated memory was 134.7 MB in the beginning and 202.4 MB in the end (delta: 67.6 MB). Free memory was 89.3 MB in the beginning and 179.6 MB in the end (delta: -90.3 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 41.13 ms. Allocated memory is still 202.4 MB. Free memory was 179.6 MB in the beginning and 177.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 437.19 ms. Allocated memory is still 202.4 MB. Free memory was 177.5 MB in the beginning and 161.0 MB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1121.54 ms. Allocated memory is still 202.4 MB. Free memory was 160.2 MB in the beginning and 102.1 MB in the end (delta: 58.1 MB). Peak memory consumption was 58.1 MB. Max. memory is 7.1 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 31 locations, 1 error locations. SAFE Result, 1.0s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 89 SDtfs, 37 SDslu, 23 SDs, 0 SdLazy, 50 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred 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, 0.9659090909090909 AbsIntWeakeningRatio, 0.8636363636363636 AbsIntAvgWeakeningVarsNumRemoved, 1.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 73 NumberOfCodeBlocks, 73 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 69 ConstructedInterpolants, 0 QuantifiedInterpolants, 1937 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 2/3 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...