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/eca-rers2012/Problem01_label09.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-02 16:30:42,785 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-02 16:30:42,788 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-02 16:30:42,799 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-02 16:30:42,800 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-02 16:30:42,801 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-02 16:30:42,802 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-02 16:30:42,804 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-02 16:30:42,806 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-02 16:30:42,807 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-02 16:30:42,808 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-02 16:30:42,809 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-02 16:30:42,809 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-02 16:30:42,810 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-02 16:30:42,811 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-02 16:30:42,812 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-02 16:30:42,813 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-02 16:30:42,814 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-02 16:30:42,816 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-02 16:30:42,818 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-02 16:30:42,819 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-02 16:30:42,820 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-02 16:30:42,822 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-02 16:30:42,822 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-02 16:30:42,825 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-02 16:30:42,828 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-02 16:30:42,829 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-02 16:30:42,830 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-02 16:30:42,830 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-02 16:30:42,831 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-02 16:30:42,832 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-02 16:30:42,832 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-02 16:30:42,832 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-02 16:30:42,833 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-02 16:30:42,833 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-02 16:30:42,834 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-02 16:30:42,835 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 [2019-10-02 16:30:42,850 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-02 16:30:42,850 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-02 16:30:42,851 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-02 16:30:42,851 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-02 16:30:42,851 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-02 16:30:42,852 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-02 16:30:42,852 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-02 16:30:42,852 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-02 16:30:42,852 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-02 16:30:42,852 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-02 16:30:42,853 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-02 16:30:42,853 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-02 16:30:42,854 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-02 16:30:42,854 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-02 16:30:42,854 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-02 16:30:42,854 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-02 16:30:42,854 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-02 16:30:42,854 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-02 16:30:42,855 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-02 16:30:42,855 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-02 16:30:42,855 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-02 16:30:42,855 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-02 16:30:42,855 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-02 16:30:42,856 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-02 16:30:42,856 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-02 16:30:42,856 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-02 16:30:42,856 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-02 16:30:42,857 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-02 16:30:42,857 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-02 16:30:42,857 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-02 16:30:42,893 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-02 16:30:42,905 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-02 16:30:42,908 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-02 16:30:42,909 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-02 16:30:42,910 INFO L275 PluginConnector]: CDTParser initialized [2019-10-02 16:30:42,910 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label09.c [2019-10-02 16:30:42,968 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb60d8cc8/3d7b91734e0e479dbabe74337c1c1441/FLAG459ff94d1 [2019-10-02 16:30:43,466 INFO L306 CDTParser]: Found 1 translation units. [2019-10-02 16:30:43,467 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label09.c [2019-10-02 16:30:43,486 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb60d8cc8/3d7b91734e0e479dbabe74337c1c1441/FLAG459ff94d1 [2019-10-02 16:30:43,718 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb60d8cc8/3d7b91734e0e479dbabe74337c1c1441 [2019-10-02 16:30:43,730 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-02 16:30:43,732 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-02 16:30:43,733 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-02 16:30:43,734 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-02 16:30:43,739 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-02 16:30:43,740 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 04:30:43" (1/1) ... [2019-10-02 16:30:43,744 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b9f1ca3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:30:43, skipping insertion in model container [2019-10-02 16:30:43,744 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 04:30:43" (1/1) ... [2019-10-02 16:30:43,752 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-02 16:30:43,805 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-02 16:30:44,467 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 16:30:44,475 INFO L188 MainTranslator]: Completed pre-run [2019-10-02 16:30:44,575 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 16:30:44,592 INFO L192 MainTranslator]: Completed translation [2019-10-02 16:30:44,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:30:44 WrapperNode [2019-10-02 16:30:44,593 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-02 16:30:44,594 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-02 16:30:44,594 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-02 16:30:44,594 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-02 16:30:44,609 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:30:44" (1/1) ... [2019-10-02 16:30:44,610 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:30:44" (1/1) ... [2019-10-02 16:30:44,641 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:30:44" (1/1) ... [2019-10-02 16:30:44,642 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:30:44" (1/1) ... [2019-10-02 16:30:44,691 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:30:44" (1/1) ... [2019-10-02 16:30:44,704 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:30:44" (1/1) ... [2019-10-02 16:30:44,709 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:30:44" (1/1) ... [2019-10-02 16:30:44,722 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-02 16:30:44,724 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-02 16:30:44,724 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-02 16:30:44,724 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-02 16:30:44,728 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:30:44" (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 [2019-10-02 16:30:44,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-02 16:30:44,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-02 16:30:44,819 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-10-02 16:30:44,820 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-02 16:30:44,820 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-10-02 16:30:44,820 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-02 16:30:44,820 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-02 16:30:44,821 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-02 16:30:44,821 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-02 16:30:44,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-02 16:30:44,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-02 16:30:46,199 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-02 16:30:46,200 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-02 16:30:46,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 04:30:46 BoogieIcfgContainer [2019-10-02 16:30:46,202 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-02 16:30:46,203 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-02 16:30:46,203 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-02 16:30:46,207 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-02 16:30:46,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.10 04:30:43" (1/3) ... [2019-10-02 16:30:46,208 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e014021 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 04:30:46, skipping insertion in model container [2019-10-02 16:30:46,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:30:44" (2/3) ... [2019-10-02 16:30:46,209 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e014021 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 04:30:46, skipping insertion in model container [2019-10-02 16:30:46,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 04:30:46" (3/3) ... [2019-10-02 16:30:46,211 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label09.c [2019-10-02 16:30:46,222 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-02 16:30:46,231 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-02 16:30:46,250 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-02 16:30:46,279 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-02 16:30:46,279 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-02 16:30:46,279 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-02 16:30:46,280 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-02 16:30:46,280 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-02 16:30:46,280 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-02 16:30:46,281 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-02 16:30:46,281 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-02 16:30:46,317 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2019-10-02 16:30:46,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2019-10-02 16:30:46,343 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 16:30:46,344 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2019-10-02 16:30:46,347 INFO L418 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 16:30:46,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 16:30:46,354 INFO L82 PathProgramCache]: Analyzing trace with hash 255640414, now seen corresponding path program 1 times [2019-10-02 16:30:46,356 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 16:30:46,420 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 16:30:46,420 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 16:30:46,420 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 16:30:46,420 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 16:30:46,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 16:30:47,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 16:30:47,066 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 16:30:47,067 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-02 16:30:47,067 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 16:30:47,075 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-02 16:30:47,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-02 16:30:47,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-02 16:30:47,094 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 4 states. [2019-10-02 16:30:48,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 16:30:48,122 INFO L93 Difference]: Finished difference Result 346 states and 505 transitions. [2019-10-02 16:30:48,123 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 16:30:48,125 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 124 [2019-10-02 16:30:48,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 16:30:48,154 INFO L225 Difference]: With dead ends: 346 [2019-10-02 16:30:48,154 INFO L226 Difference]: Without dead ends: 278 [2019-10-02 16:30:48,156 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-02 16:30:48,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2019-10-02 16:30:48,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2019-10-02 16:30:48,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2019-10-02 16:30:48,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 412 transitions. [2019-10-02 16:30:48,228 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 412 transitions. Word has length 124 [2019-10-02 16:30:48,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 16:30:48,230 INFO L475 AbstractCegarLoop]: Abstraction has 278 states and 412 transitions. [2019-10-02 16:30:48,230 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-02 16:30:48,230 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 412 transitions. [2019-10-02 16:30:48,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2019-10-02 16:30:48,234 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 16:30:48,235 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 16:30:48,235 INFO L418 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 16:30:48,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 16:30:48,236 INFO L82 PathProgramCache]: Analyzing trace with hash -495386507, now seen corresponding path program 1 times [2019-10-02 16:30:48,236 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 16:30:48,237 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 16:30:48,237 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 16:30:48,237 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 16:30:48,238 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 16:30:48,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 16:30:48,385 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 16:30:48,385 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 16:30:48,386 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-02 16:30:48,386 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 16:30:48,388 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-02 16:30:48,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-02 16:30:48,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-10-02 16:30:48,388 INFO L87 Difference]: Start difference. First operand 278 states and 412 transitions. Second operand 6 states. [2019-10-02 16:30:49,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 16:30:49,190 INFO L93 Difference]: Finished difference Result 431 states and 637 transitions. [2019-10-02 16:30:49,191 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-02 16:30:49,191 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 134 [2019-10-02 16:30:49,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 16:30:49,196 INFO L225 Difference]: With dead ends: 431 [2019-10-02 16:30:49,197 INFO L226 Difference]: Without dead ends: 431 [2019-10-02 16:30:49,198 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-10-02 16:30:49,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2019-10-02 16:30:49,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 417. [2019-10-02 16:30:49,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 417 states. [2019-10-02 16:30:49,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 609 transitions. [2019-10-02 16:30:49,229 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 609 transitions. Word has length 134 [2019-10-02 16:30:49,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 16:30:49,230 INFO L475 AbstractCegarLoop]: Abstraction has 417 states and 609 transitions. [2019-10-02 16:30:49,230 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-02 16:30:49,230 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 609 transitions. [2019-10-02 16:30:49,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2019-10-02 16:30:49,240 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 16:30:49,241 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 16:30:49,241 INFO L418 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 16:30:49,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 16:30:49,241 INFO L82 PathProgramCache]: Analyzing trace with hash -289661257, now seen corresponding path program 1 times [2019-10-02 16:30:49,242 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 16:30:49,243 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 16:30:49,243 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 16:30:49,243 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 16:30:49,243 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 16:30:49,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 16:30:49,559 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 16:30:49,559 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 16:30:49,559 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-02 16:30:49,559 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 16:30:49,560 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-02 16:30:49,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-02 16:30:49,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-02 16:30:49,561 INFO L87 Difference]: Start difference. First operand 417 states and 609 transitions. Second operand 5 states. [2019-10-02 16:30:50,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 16:30:50,234 INFO L93 Difference]: Finished difference Result 516 states and 709 transitions. [2019-10-02 16:30:50,235 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-02 16:30:50,235 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 135 [2019-10-02 16:30:50,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 16:30:50,239 INFO L225 Difference]: With dead ends: 516 [2019-10-02 16:30:50,240 INFO L226 Difference]: Without dead ends: 415 [2019-10-02 16:30:50,240 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-02 16:30:50,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2019-10-02 16:30:50,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 415. [2019-10-02 16:30:50,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 415 states. [2019-10-02 16:30:50,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 557 transitions. [2019-10-02 16:30:50,263 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 557 transitions. Word has length 135 [2019-10-02 16:30:50,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 16:30:50,263 INFO L475 AbstractCegarLoop]: Abstraction has 415 states and 557 transitions. [2019-10-02 16:30:50,263 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-02 16:30:50,263 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 557 transitions. [2019-10-02 16:30:50,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2019-10-02 16:30:50,266 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 16:30:50,266 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 16:30:50,266 INFO L418 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 16:30:50,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 16:30:50,267 INFO L82 PathProgramCache]: Analyzing trace with hash 509679649, now seen corresponding path program 1 times [2019-10-02 16:30:50,267 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 16:30:50,268 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 16:30:50,268 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 16:30:50,269 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 16:30:50,269 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 16:30:50,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 16:30:50,351 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 16:30:50,351 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 16:30:50,351 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-02 16:30:50,352 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 16:30:50,352 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-02 16:30:50,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-02 16:30:50,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-10-02 16:30:50,353 INFO L87 Difference]: Start difference. First operand 415 states and 557 transitions. Second operand 6 states. [2019-10-02 16:30:51,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 16:30:51,227 INFO L93 Difference]: Finished difference Result 707 states and 917 transitions. [2019-10-02 16:30:51,230 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-02 16:30:51,230 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 144 [2019-10-02 16:30:51,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 16:30:51,231 INFO L225 Difference]: With dead ends: 707 [2019-10-02 16:30:51,231 INFO L226 Difference]: Without dead ends: 0 [2019-10-02 16:30:51,231 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-10-02 16:30:51,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-02 16:30:51,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-02 16:30:51,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-02 16:30:51,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-02 16:30:51,232 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 144 [2019-10-02 16:30:51,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 16:30:51,233 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-02 16:30:51,233 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-02 16:30:51,233 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-02 16:30:51,233 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-02 16:30:51,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.10 04:30:51 BoogieIcfgContainer [2019-10-02 16:30:51,238 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-02 16:30:51,241 INFO L168 Benchmark]: Toolchain (without parser) took 7508.31 ms. Allocated memory was 138.9 MB in the beginning and 332.4 MB in the end (delta: 193.5 MB). Free memory was 85.3 MB in the beginning and 251.3 MB in the end (delta: -166.0 MB). Peak memory consumption was 27.5 MB. Max. memory is 7.1 GB. [2019-10-02 16:30:51,242 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 138.9 MB. Free memory was 105.0 MB in the beginning and 104.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-02 16:30:51,243 INFO L168 Benchmark]: CACSL2BoogieTranslator took 859.77 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 85.1 MB in the beginning and 167.4 MB in the end (delta: -82.4 MB). Peak memory consumption was 31.9 MB. Max. memory is 7.1 GB. [2019-10-02 16:30:51,244 INFO L168 Benchmark]: Boogie Preprocessor took 130.05 ms. Allocated memory is still 202.9 MB. Free memory was 167.4 MB in the beginning and 162.6 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2019-10-02 16:30:51,245 INFO L168 Benchmark]: RCFGBuilder took 1477.74 ms. Allocated memory was 202.9 MB in the beginning and 225.4 MB in the end (delta: 22.5 MB). Free memory was 162.6 MB in the beginning and 178.8 MB in the end (delta: -16.2 MB). Peak memory consumption was 92.4 MB. Max. memory is 7.1 GB. [2019-10-02 16:30:51,246 INFO L168 Benchmark]: TraceAbstraction took 5035.59 ms. Allocated memory was 225.4 MB in the beginning and 332.4 MB in the end (delta: 107.0 MB). Free memory was 177.4 MB in the beginning and 251.3 MB in the end (delta: -73.9 MB). Peak memory consumption was 33.1 MB. Max. memory is 7.1 GB. [2019-10-02 16:30:51,250 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 138.9 MB. Free memory was 105.0 MB in the beginning and 104.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 859.77 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 85.1 MB in the beginning and 167.4 MB in the end (delta: -82.4 MB). Peak memory consumption was 31.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 130.05 ms. Allocated memory is still 202.9 MB. Free memory was 167.4 MB in the beginning and 162.6 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1477.74 ms. Allocated memory was 202.9 MB in the beginning and 225.4 MB in the end (delta: 22.5 MB). Free memory was 162.6 MB in the beginning and 178.8 MB in the end (delta: -16.2 MB). Peak memory consumption was 92.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5035.59 ms. Allocated memory was 225.4 MB in the beginning and 332.4 MB in the end (delta: 107.0 MB). Free memory was 177.4 MB in the beginning and 251.3 MB in the end (delta: -73.9 MB). Peak memory consumption was 33.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 530]: 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, 207 locations, 1 error locations. SAFE Result, 4.9s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 3.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 116 SDtfs, 1421 SDslu, 119 SDs, 0 SdLazy, 2150 SolverSat, 417 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=417occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 14 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 537 NumberOfCodeBlocks, 537 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 533 ConstructedInterpolants, 0 QuantifiedInterpolants, 487181 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 32/32 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...