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/loops/linear_sea.ch.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 02:34:47,649 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 02:34:47,651 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 02:34:47,668 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 02:34:47,668 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 02:34:47,670 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 02:34:47,671 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 02:34:47,673 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 02:34:47,674 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 02:34:47,675 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 02:34:47,676 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 02:34:47,677 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 02:34:47,678 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 02:34:47,679 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 02:34:47,680 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 02:34:47,681 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 02:34:47,682 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 02:34:47,683 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 02:34:47,684 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 02:34:47,687 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 02:34:47,688 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 02:34:47,689 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 02:34:47,691 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 02:34:47,691 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 02:34:47,694 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-03 02:34:47,697 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 02:34:47,698 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 02:34:47,699 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 02:34:47,700 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 02:34:47,701 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 02:34:47,701 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 02:34:47,702 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 02:34:47,702 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 02:34:47,702 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 02:34:47,703 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 02:34:47,704 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 02:34:47,704 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 [2019-10-03 02:34:47,720 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 02:34:47,720 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 02:34:47,721 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 02:34:47,721 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 02:34:47,722 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 02:34:47,722 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 02:34:47,722 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 02:34:47,722 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 02:34:47,723 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 02:34:47,723 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 02:34:47,723 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 02:34:47,724 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 02:34:47,724 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 02:34:47,724 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 02:34:47,724 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 02:34:47,724 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 02:34:47,725 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 02:34:47,725 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 02:34:47,725 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 02:34:47,725 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 02:34:47,725 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 02:34:47,726 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 02:34:47,726 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 02:34:47,726 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:34:47,726 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 02:34:47,726 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 02:34:47,727 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 02:34:47,727 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 02:34:47,727 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 02:34:47,727 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 02:34:47,756 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 02:34:47,769 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 02:34:47,772 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 02:34:47,774 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 02:34:47,774 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 02:34:47,775 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/linear_sea.ch.c [2019-10-03 02:34:47,838 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85b5c8e69/07a70988839f4af8b77392806a6c38d8/FLAG7c8edf0db [2019-10-03 02:34:48,308 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 02:34:48,309 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/linear_sea.ch.c [2019-10-03 02:34:48,316 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85b5c8e69/07a70988839f4af8b77392806a6c38d8/FLAG7c8edf0db [2019-10-03 02:34:48,654 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85b5c8e69/07a70988839f4af8b77392806a6c38d8 [2019-10-03 02:34:48,664 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 02:34:48,666 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 02:34:48,667 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 02:34:48,667 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 02:34:48,671 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 02:34:48,672 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:34:48" (1/1) ... [2019-10-03 02:34:48,675 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e48f3f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:34:48, skipping insertion in model container [2019-10-03 02:34:48,675 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:34:48" (1/1) ... [2019-10-03 02:34:48,683 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 02:34:48,701 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 02:34:48,904 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:34:48,915 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 02:34:48,931 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:34:48,945 INFO L192 MainTranslator]: Completed translation [2019-10-03 02:34:48,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:34:48 WrapperNode [2019-10-03 02:34:48,946 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 02:34:48,947 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 02:34:48,947 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 02:34:48,947 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 02:34:49,054 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:34:48" (1/1) ... [2019-10-03 02:34:49,056 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:34:48" (1/1) ... [2019-10-03 02:34:49,063 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:34:48" (1/1) ... [2019-10-03 02:34:49,064 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:34:48" (1/1) ... [2019-10-03 02:34:49,070 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:34:48" (1/1) ... [2019-10-03 02:34:49,078 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:34:48" (1/1) ... [2019-10-03 02:34:49,079 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:34:48" (1/1) ... [2019-10-03 02:34:49,082 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 02:34:49,082 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 02:34:49,082 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 02:34:49,082 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 02:34:49,083 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:34:48" (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 [2019-10-03 02:34:49,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 02:34:49,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 02:34:49,147 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-03 02:34:49,147 INFO L138 BoogieDeclarations]: Found implementation of procedure linear_search [2019-10-03 02:34:49,147 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 02:34:49,147 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 02:34:49,147 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-03 02:34:49,148 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-03 02:34:49,148 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-03 02:34:49,148 INFO L130 BoogieDeclarations]: Found specification of procedure linear_search [2019-10-03 02:34:49,148 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-03 02:34:49,148 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 02:34:49,148 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-03 02:34:49,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-03 02:34:49,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 02:34:49,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 02:34:49,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-03 02:34:49,441 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 02:34:49,442 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-03 02:34:49,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:34:49 BoogieIcfgContainer [2019-10-03 02:34:49,444 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 02:34:49,450 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-03 02:34:49,450 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-03 02:34:49,459 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-03 02:34:49,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 02:34:48" (1/3) ... [2019-10-03 02:34:49,464 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4196a0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:34:49, skipping insertion in model container [2019-10-03 02:34:49,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:34:48" (2/3) ... [2019-10-03 02:34:49,465 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4196a0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:34:49, skipping insertion in model container [2019-10-03 02:34:49,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:34:49" (3/3) ... [2019-10-03 02:34:49,470 INFO L109 eAbstractionObserver]: Analyzing ICFG linear_sea.ch.c [2019-10-03 02:34:49,491 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-03 02:34:49,502 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-03 02:34:49,518 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-03 02:34:49,544 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-03 02:34:49,545 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-03 02:34:49,545 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-03 02:34:49,545 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-03 02:34:49,545 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-03 02:34:49,545 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-03 02:34:49,545 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-03 02:34:49,545 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-03 02:34:49,558 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2019-10-03 02:34:49,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-03 02:34:49,567 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:34:49,568 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:34:49,570 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:34:49,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:34:49,575 INFO L82 PathProgramCache]: Analyzing trace with hash -1860043698, now seen corresponding path program 1 times [2019-10-03 02:34:49,577 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:34:49,635 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:34:49,635 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:34:49,636 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:34:49,636 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:34:49,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:34:49,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:34:49,789 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:34:49,790 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-03 02:34:49,790 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:34:49,795 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:34:49,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:34:49,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:34:49,809 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 2 states. [2019-10-03 02:34:49,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:34:49,824 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2019-10-03 02:34:49,824 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:34:49,825 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-10-03 02:34:49,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:34:49,835 INFO L225 Difference]: With dead ends: 28 [2019-10-03 02:34:49,835 INFO L226 Difference]: Without dead ends: 21 [2019-10-03 02:34:49,837 INFO L640 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 [2019-10-03 02:34:49,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-10-03 02:34:49,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-10-03 02:34:49,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-10-03 02:34:49,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2019-10-03 02:34:49,874 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 18 [2019-10-03 02:34:49,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:34:49,875 INFO L475 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2019-10-03 02:34:49,875 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:34:49,875 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2019-10-03 02:34:49,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-10-03 02:34:49,876 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:34:49,877 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:34:49,877 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:34:49,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:34:49,877 INFO L82 PathProgramCache]: Analyzing trace with hash 916881159, now seen corresponding path program 1 times [2019-10-03 02:34:49,878 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:34:49,880 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:34:49,880 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:34:49,880 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:34:49,881 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:34:49,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:34:50,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:34:50,042 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:34:50,043 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-03 02:34:50,043 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:34:50,045 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-03 02:34:50,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-03 02:34:50,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-03 02:34:50,046 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand 6 states. [2019-10-03 02:34:50,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:34:50,119 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2019-10-03 02:34:50,120 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-03 02:34:50,120 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2019-10-03 02:34:50,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:34:50,122 INFO L225 Difference]: With dead ends: 27 [2019-10-03 02:34:50,122 INFO L226 Difference]: Without dead ends: 21 [2019-10-03 02:34:50,124 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:34:50,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-10-03 02:34:50,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-10-03 02:34:50,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-10-03 02:34:50,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2019-10-03 02:34:50,128 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 20 [2019-10-03 02:34:50,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:34:50,129 INFO L475 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2019-10-03 02:34:50,129 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-03 02:34:50,129 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2019-10-03 02:34:50,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-10-03 02:34:50,130 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:34:50,130 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:34:50,131 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:34:50,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:34:50,131 INFO L82 PathProgramCache]: Analyzing trace with hash -1635275802, now seen corresponding path program 1 times [2019-10-03 02:34:50,132 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:34:50,133 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:34:50,134 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:34:50,134 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:34:50,134 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:34:50,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:34:50,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:34:50,289 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:34:50,289 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-03 02:34:50,290 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:34:50,291 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-03 02:34:50,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-03 02:34:50,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-03 02:34:50,292 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 5 states. [2019-10-03 02:34:50,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:34:50,355 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions. [2019-10-03 02:34:50,355 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-03 02:34:50,356 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2019-10-03 02:34:50,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:34:50,357 INFO L225 Difference]: With dead ends: 25 [2019-10-03 02:34:50,357 INFO L226 Difference]: Without dead ends: 24 [2019-10-03 02:34:50,357 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-03 02:34:50,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-10-03 02:34:50,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2019-10-03 02:34:50,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-10-03 02:34:50,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2019-10-03 02:34:50,363 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 20 [2019-10-03 02:34:50,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:34:50,363 INFO L475 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2019-10-03 02:34:50,363 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-03 02:34:50,363 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2019-10-03 02:34:50,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-10-03 02:34:50,364 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:34:50,364 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:34:50,365 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:34:50,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:34:50,365 INFO L82 PathProgramCache]: Analyzing trace with hash 636491705, now seen corresponding path program 1 times [2019-10-03 02:34:50,365 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:34:50,367 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:34:50,367 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:34:50,367 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:34:50,367 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:34:50,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:34:50,571 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:34:50,571 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-03 02:34:50,572 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-10-03 02:34:50,573 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 24 with the following transitions: [2019-10-03 02:34:50,575 INFO L207 CegarAbsIntRunner]: [0], [5], [8], [14], [16], [23], [24], [25], [26], [30], [33], [35], [42], [45], [47], [53], [54], [55], [57], [58], [59] [2019-10-03 02:34:50,619 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-03 02:34:50,620 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-03 02:34:50,705 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-10-03 02:34:50,728 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-03 02:34:50,731 INFO L272 AbstractInterpreter]: Visited 7 different actions 7 times. Never merged. Never widened. Performed 23 root evaluator evaluations with a maximum evaluation depth of 9. Performed 23 inverse root evaluator evaluations with a maximum inverse evaluation depth of 9. Never found a fixpoint. Largest state had 22 variables. [2019-10-03 02:34:50,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:34:50,735 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-03 02:34:50,814 INFO L227 lantSequenceWeakener]: Weakened 5 states. On average, predicates are now at 77.5% of their original sizes. [2019-10-03 02:34:50,814 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-10-03 02:34:50,823 INFO L420 sIntCurrentIteration]: We unified 22 AI predicates to 22 [2019-10-03 02:34:50,823 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-03 02:34:50,825 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-03 02:34:50,825 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2019-10-03 02:34:50,826 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:34:50,826 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-03 02:34:50,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-03 02:34:50,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-03 02:34:50,827 INFO L87 Difference]: Start difference. First operand 24 states and 26 transitions. Second operand 4 states. [2019-10-03 02:34:50,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:34:50,844 INFO L93 Difference]: Finished difference Result 7 states and 6 transitions. [2019-10-03 02:34:50,845 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-03 02:34:50,846 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2019-10-03 02:34:50,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:34:50,846 INFO L225 Difference]: With dead ends: 7 [2019-10-03 02:34:50,846 INFO L226 Difference]: Without dead ends: 0 [2019-10-03 02:34:50,847 INFO L640 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 [2019-10-03 02:34:50,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-03 02:34:50,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-03 02:34:50,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-03 02:34:50,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-03 02:34:50,849 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2019-10-03 02:34:50,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:34:50,849 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-03 02:34:50,850 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-03 02:34:50,850 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-03 02:34:50,850 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-03 02:34:50,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 02:34:50 BoogieIcfgContainer [2019-10-03 02:34:50,860 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-03 02:34:50,864 INFO L168 Benchmark]: Toolchain (without parser) took 2196.14 ms. Allocated memory was 140.0 MB in the beginning and 200.3 MB in the end (delta: 60.3 MB). Free memory was 87.8 MB in the beginning and 87.4 MB in the end (delta: 403.5 kB). Peak memory consumption was 60.7 MB. Max. memory is 7.1 GB. [2019-10-03 02:34:50,866 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 140.0 MB. Free memory was 106.1 MB in the beginning and 105.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-03 02:34:50,868 INFO L168 Benchmark]: CACSL2BoogieTranslator took 279.14 ms. Allocated memory is still 140.0 MB. Free memory was 87.6 MB in the beginning and 77.5 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2019-10-03 02:34:50,870 INFO L168 Benchmark]: Boogie Preprocessor took 135.25 ms. Allocated memory was 140.0 MB in the beginning and 200.3 MB in the end (delta: 60.3 MB). Free memory was 77.5 MB in the beginning and 177.1 MB in the end (delta: -99.5 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. [2019-10-03 02:34:50,871 INFO L168 Benchmark]: RCFGBuilder took 361.61 ms. Allocated memory is still 200.3 MB. Free memory was 177.1 MB in the beginning and 161.4 MB in the end (delta: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 7.1 GB. [2019-10-03 02:34:50,873 INFO L168 Benchmark]: TraceAbstraction took 1409.87 ms. Allocated memory is still 200.3 MB. Free memory was 161.4 MB in the beginning and 87.4 MB in the end (delta: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. [2019-10-03 02:34:50,882 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 140.0 MB. Free memory was 106.1 MB in the beginning and 105.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 279.14 ms. Allocated memory is still 140.0 MB. Free memory was 87.6 MB in the beginning and 77.5 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 135.25 ms. Allocated memory was 140.0 MB in the beginning and 200.3 MB in the end (delta: 60.3 MB). Free memory was 77.5 MB in the beginning and 177.1 MB in the end (delta: -99.5 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 361.61 ms. Allocated memory is still 200.3 MB. Free memory was 177.1 MB in the beginning and 161.4 MB in the end (delta: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1409.87 ms. Allocated memory is still 200.3 MB. Free memory was 161.4 MB in the beginning and 87.4 MB in the end (delta: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: 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 5 procedures, 28 locations, 1 error locations. SAFE Result, 1.3s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 76 SDtfs, 25 SDslu, 110 SDs, 0 SdLazy, 35 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred 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, 0.9715909090909091 AbsIntWeakeningRatio, 1.3181818181818181 AbsIntAvgWeakeningVarsNumRemoved, 1.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 81 NumberOfCodeBlocks, 81 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 77 ConstructedInterpolants, 0 QuantifiedInterpolants, 3795 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 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...