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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/array-examples/standard_init4_ground-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 19:53:17,969 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 19:53:17,972 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 19:53:17,990 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 19:53:17,990 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 19:53:17,992 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 19:53:17,994 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 19:53:18,004 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 19:53:18,008 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 19:53:18,012 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 19:53:18,013 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 19:53:18,015 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 19:53:18,015 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 19:53:18,016 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 19:53:18,019 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 19:53:18,020 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 19:53:18,022 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 19:53:18,023 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 19:53:18,024 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 19:53:18,029 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 19:53:18,030 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 19:53:18,031 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 19:53:18,032 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 19:53:18,032 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 19:53:18,035 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-13 19:53:18,040 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 19:53:18,041 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 19:53:18,042 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 19:53:18,043 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 19:53:18,045 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 19:53:18,045 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 19:53:18,045 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 19:53:18,046 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 19:53:18,046 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 19:53:18,047 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 19:53:18,048 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 19:53:18,049 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 19:53:18,066 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 19:53:18,066 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 19:53:18,067 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 19:53:18,068 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 19:53:18,068 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 19:53:18,068 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 19:53:18,068 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 19:53:18,069 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 19:53:18,069 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 19:53:18,069 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 19:53:18,069 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 19:53:18,069 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 19:53:18,069 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 19:53:18,070 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 19:53:18,070 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 19:53:18,070 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 19:53:18,070 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 19:53:18,070 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 19:53:18,071 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 19:53:18,071 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 19:53:18,071 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 19:53:18,071 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:53:18,071 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 19:53:18,072 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 19:53:18,072 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 19:53:18,072 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 19:53:18,072 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 19:53:18,072 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 19:53:18,073 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-13 19:53:18,361 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 19:53:18,376 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 19:53:18,380 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 19:53:18,382 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 19:53:18,382 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 19:53:18,383 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/standard_init4_ground-2.i [2019-10-13 19:53:18,463 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07481a74a/5e9a0e6a1b504047829235092ff7b3f1/FLAGf523d5ba0 [2019-10-13 19:53:18,933 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 19:53:18,934 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-examples/standard_init4_ground-2.i [2019-10-13 19:53:18,939 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07481a74a/5e9a0e6a1b504047829235092ff7b3f1/FLAGf523d5ba0 [2019-10-13 19:53:19,373 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07481a74a/5e9a0e6a1b504047829235092ff7b3f1 [2019-10-13 19:53:19,385 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 19:53:19,386 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 19:53:19,387 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 19:53:19,388 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 19:53:19,390 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 19:53:19,391 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:53:19" (1/1) ... [2019-10-13 19:53:19,393 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27e14b79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:19, skipping insertion in model container [2019-10-13 19:53:19,394 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:53:19" (1/1) ... [2019-10-13 19:53:19,401 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 19:53:19,415 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 19:53:19,628 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:53:19,632 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 19:53:19,657 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:53:19,674 INFO L192 MainTranslator]: Completed translation [2019-10-13 19:53:19,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:19 WrapperNode [2019-10-13 19:53:19,674 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 19:53:19,675 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 19:53:19,675 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 19:53:19,675 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 19:53:19,783 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:19" (1/1) ... [2019-10-13 19:53:19,783 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:19" (1/1) ... [2019-10-13 19:53:19,793 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:19" (1/1) ... [2019-10-13 19:53:19,794 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:19" (1/1) ... [2019-10-13 19:53:19,801 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:19" (1/1) ... [2019-10-13 19:53:19,808 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:19" (1/1) ... [2019-10-13 19:53:19,813 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:19" (1/1) ... [2019-10-13 19:53:19,815 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 19:53:19,815 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 19:53:19,815 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 19:53:19,815 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 19:53:19,816 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:19" (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 [2019-10-13 19:53:19,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 19:53:19,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 19:53:19,875 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-13 19:53:19,876 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 19:53:19,876 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 19:53:19,876 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-13 19:53:19,876 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 19:53:19,876 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 19:53:19,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 19:53:19,877 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 19:53:19,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 19:53:19,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 19:53:19,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 19:53:20,107 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 19:53:20,107 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-13 19:53:20,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:53:20 BoogieIcfgContainer [2019-10-13 19:53:20,109 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 19:53:20,110 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 19:53:20,111 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 19:53:20,114 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 19:53:20,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:53:19" (1/3) ... [2019-10-13 19:53:20,115 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29d21ba3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:53:20, skipping insertion in model container [2019-10-13 19:53:20,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:19" (2/3) ... [2019-10-13 19:53:20,116 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29d21ba3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:53:20, skipping insertion in model container [2019-10-13 19:53:20,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:53:20" (3/3) ... [2019-10-13 19:53:20,118 INFO L109 eAbstractionObserver]: Analyzing ICFG standard_init4_ground-2.i [2019-10-13 19:53:20,129 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 19:53:20,138 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 19:53:20,150 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 19:53:20,198 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 19:53:20,198 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 19:53:20,198 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 19:53:20,199 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 19:53:20,199 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 19:53:20,199 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 19:53:20,199 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 19:53:20,200 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 19:53:20,225 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2019-10-13 19:53:20,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-13 19:53:20,232 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:53:20,233 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:53:20,236 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:53:20,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:53:20,242 INFO L82 PathProgramCache]: Analyzing trace with hash -1568614638, now seen corresponding path program 1 times [2019-10-13 19:53:20,254 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 19:53:20,254 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704829098] [2019-10-13 19:53:20,255 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:20,255 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:20,255 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:53:20,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:53:20,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:53:20,388 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704829098] [2019-10-13 19:53:20,389 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:53:20,389 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 19:53:20,389 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339055822] [2019-10-13 19:53:20,394 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 19:53:20,396 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 19:53:20,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 19:53:20,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 19:53:20,415 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 2 states. [2019-10-13 19:53:20,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:53:20,441 INFO L93 Difference]: Finished difference Result 51 states and 70 transitions. [2019-10-13 19:53:20,442 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 19:53:20,443 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2019-10-13 19:53:20,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:53:20,450 INFO L225 Difference]: With dead ends: 51 [2019-10-13 19:53:20,450 INFO L226 Difference]: Without dead ends: 24 [2019-10-13 19:53:20,453 INFO L600 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 [2019-10-13 19:53:20,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-10-13 19:53:20,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2019-10-13 19:53:20,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-10-13 19:53:20,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2019-10-13 19:53:20,490 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 19 [2019-10-13 19:53:20,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:53:20,490 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2019-10-13 19:53:20,491 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 19:53:20,491 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2019-10-13 19:53:20,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-13 19:53:20,492 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:53:20,492 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:53:20,493 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:53:20,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:53:20,493 INFO L82 PathProgramCache]: Analyzing trace with hash -395002610, now seen corresponding path program 1 times [2019-10-13 19:53:20,494 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 19:53:20,494 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735238968] [2019-10-13 19:53:20,494 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:20,494 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:20,494 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:53:20,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:53:20,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:53:20,550 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735238968] [2019-10-13 19:53:20,550 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:53:20,550 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 19:53:20,551 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879842805] [2019-10-13 19:53:20,552 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 19:53:20,553 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 19:53:20,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 19:53:20,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 19:53:20,554 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand 3 states. [2019-10-13 19:53:20,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:53:20,622 INFO L93 Difference]: Finished difference Result 45 states and 56 transitions. [2019-10-13 19:53:20,622 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 19:53:20,622 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-10-13 19:53:20,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:53:20,623 INFO L225 Difference]: With dead ends: 45 [2019-10-13 19:53:20,623 INFO L226 Difference]: Without dead ends: 28 [2019-10-13 19:53:20,625 INFO L600 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 [2019-10-13 19:53:20,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-10-13 19:53:20,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-10-13 19:53:20,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-10-13 19:53:20,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2019-10-13 19:53:20,632 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 19 [2019-10-13 19:53:20,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:53:20,633 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2019-10-13 19:53:20,633 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 19:53:20,633 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2019-10-13 19:53:20,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-10-13 19:53:20,634 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:53:20,635 INFO L380 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] [2019-10-13 19:53:20,635 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:53:20,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:53:20,635 INFO L82 PathProgramCache]: Analyzing trace with hash 47445068, now seen corresponding path program 1 times [2019-10-13 19:53:20,636 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 19:53:20,636 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355274702] [2019-10-13 19:53:20,636 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:20,637 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:20,637 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:53:20,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:53:20,724 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 19:53:20,724 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355274702] [2019-10-13 19:53:20,725 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1138164171] [2019-10-13 19:53:20,725 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 19:53:20,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:53:20,784 INFO L256 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 19:53:20,791 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 19:53:20,824 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 19:53:20,824 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 19:53:20,861 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 19:53:20,862 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [709887602] [2019-10-13 19:53:20,868 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 24 [2019-10-13 19:53:20,908 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-13 19:53:20,908 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-13 19:53:20,975 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-13 19:53:20,976 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Performed 15 root evaluator evaluations with a maximum evaluation depth of 0. Performed 15 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 17 variables. [2019-10-13 19:53:20,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:53:20,980 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-13 19:53:21,017 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-10-13 19:53:21,017 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-13 19:53:21,019 INFO L553 sIntCurrentIteration]: We unified 22 AI predicates to 22 [2019-10-13 19:53:21,020 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-13 19:53:21,020 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-13 19:53:21,021 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4, 4, 4] total 7 [2019-10-13 19:53:21,021 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105367507] [2019-10-13 19:53:21,022 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 19:53:21,022 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-13 19:53:21,023 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-13 19:53:21,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 19:53:21,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 19:53:21,025 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 2 states. [2019-10-13 19:53:21,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:53:21,028 INFO L93 Difference]: Finished difference Result 28 states and 32 transitions. [2019-10-13 19:53:21,028 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 19:53:21,028 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2019-10-13 19:53:21,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:53:21,029 INFO L225 Difference]: With dead ends: 28 [2019-10-13 19:53:21,029 INFO L226 Difference]: Without dead ends: 0 [2019-10-13 19:53:21,031 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 19:53:21,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-13 19:53:21,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-13 19:53:21,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-13 19:53:21,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-13 19:53:21,032 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2019-10-13 19:53:21,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:53:21,032 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-13 19:53:21,034 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 19:53:21,035 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-13 19:53:21,036 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-13 19:53:21,237 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 19:53:21,243 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-13 19:53:21,276 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-13 19:53:21,276 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-13 19:53:21,277 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-13 19:53:21,277 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-13 19:53:21,277 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-13 19:53:21,277 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-13 19:53:21,277 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-13 19:53:21,278 INFO L439 ceAbstractionStarter]: At program point L27(line 27) the Hoare annotation is: false [2019-10-13 19:53:21,278 INFO L443 ceAbstractionStarter]: For program point L27-1(line 27) no Hoare annotation was computed. [2019-10-13 19:53:21,278 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 3 30) no Hoare annotation was computed. [2019-10-13 19:53:21,278 INFO L439 ceAbstractionStarter]: At program point L11-2(lines 11 14) the Hoare annotation is: false [2019-10-13 19:53:21,278 INFO L443 ceAbstractionStarter]: For program point L11-3(lines 11 14) no Hoare annotation was computed. [2019-10-13 19:53:21,279 INFO L439 ceAbstractionStarter]: At program point L16-2(lines 16 19) the Hoare annotation is: false [2019-10-13 19:53:21,279 INFO L443 ceAbstractionStarter]: For program point L16-3(lines 16 19) no Hoare annotation was computed. [2019-10-13 19:53:21,279 INFO L439 ceAbstractionStarter]: At program point L21-2(lines 21 24) the Hoare annotation is: false [2019-10-13 19:53:21,279 INFO L443 ceAbstractionStarter]: For program point L21-3(lines 21 24) no Hoare annotation was computed. [2019-10-13 19:53:21,279 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 3 30) no Hoare annotation was computed. [2019-10-13 19:53:21,280 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 3 30) the Hoare annotation is: true [2019-10-13 19:53:21,280 INFO L443 ceAbstractionStarter]: For program point L26-2(lines 26 28) no Hoare annotation was computed. [2019-10-13 19:53:21,280 INFO L439 ceAbstractionStarter]: At program point L26-3(lines 26 28) the Hoare annotation is: false [2019-10-13 19:53:21,280 INFO L443 ceAbstractionStarter]: For program point L26-4(lines 26 28) no Hoare annotation was computed. [2019-10-13 19:53:21,280 INFO L439 ceAbstractionStarter]: At program point L6-2(lines 6 9) the Hoare annotation is: false [2019-10-13 19:53:21,281 INFO L443 ceAbstractionStarter]: For program point L6-3(lines 6 9) no Hoare annotation was computed. [2019-10-13 19:53:21,281 INFO L443 ceAbstractionStarter]: For program point L2-1(line 2) no Hoare annotation was computed. [2019-10-13 19:53:21,281 INFO L443 ceAbstractionStarter]: For program point L2-3(line 2) no Hoare annotation was computed. [2019-10-13 19:53:21,281 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 2) the Hoare annotation is: true [2019-10-13 19:53:21,281 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 2) no Hoare annotation was computed. [2019-10-13 19:53:21,282 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 2) no Hoare annotation was computed. [2019-10-13 19:53:21,282 INFO L443 ceAbstractionStarter]: For program point L2(line 2) no Hoare annotation was computed. [2019-10-13 19:53:21,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:53:21 BoogieIcfgContainer [2019-10-13 19:53:21,291 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-13 19:53:21,295 INFO L168 Benchmark]: Toolchain (without parser) took 1906.16 ms. Allocated memory was 135.8 MB in the beginning and 200.3 MB in the end (delta: 64.5 MB). Free memory was 100.8 MB in the beginning and 102.7 MB in the end (delta: -1.9 MB). Peak memory consumption was 62.6 MB. Max. memory is 7.1 GB. [2019-10-13 19:53:21,298 INFO L168 Benchmark]: CDTParser took 1.11 ms. Allocated memory is still 135.8 MB. Free memory was 119.0 MB in the beginning and 118.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-10-13 19:53:21,300 INFO L168 Benchmark]: CACSL2BoogieTranslator took 287.44 ms. Allocated memory is still 135.8 MB. Free memory was 100.6 MB in the beginning and 90.3 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2019-10-13 19:53:21,301 INFO L168 Benchmark]: Boogie Preprocessor took 139.63 ms. Allocated memory was 135.8 MB in the beginning and 200.3 MB in the end (delta: 64.5 MB). Free memory was 90.3 MB in the beginning and 177.7 MB in the end (delta: -87.5 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. [2019-10-13 19:53:21,303 INFO L168 Benchmark]: RCFGBuilder took 294.25 ms. Allocated memory is still 200.3 MB. Free memory was 177.7 MB in the beginning and 163.4 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. [2019-10-13 19:53:21,309 INFO L168 Benchmark]: TraceAbstraction took 1180.58 ms. Allocated memory is still 200.3 MB. Free memory was 162.7 MB in the beginning and 102.7 MB in the end (delta: 60.0 MB). Peak memory consumption was 60.0 MB. Max. memory is 7.1 GB. [2019-10-13 19:53:21,317 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.11 ms. Allocated memory is still 135.8 MB. Free memory was 119.0 MB in the beginning and 118.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 287.44 ms. Allocated memory is still 135.8 MB. Free memory was 100.6 MB in the beginning and 90.3 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 139.63 ms. Allocated memory was 135.8 MB in the beginning and 200.3 MB in the end (delta: 64.5 MB). Free memory was 90.3 MB in the beginning and 177.7 MB in the end (delta: -87.5 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 294.25 ms. Allocated memory is still 200.3 MB. Free memory was 177.7 MB in the beginning and 163.4 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1180.58 ms. Allocated memory is still 200.3 MB. Free memory was 162.7 MB in the beginning and 102.7 MB in the end (delta: 60.0 MB). Peak memory consumption was 60.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 2]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 29 locations, 1 error locations. Result: SAFE, OverallTime: 1.0s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 62 SDtfs, 0 SDslu, 16 SDs, 0 SdLazy, 12 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 13 PreInvPairs, 13 NumberOfFragments, 11 HoareAnnotationTreeSize, 13 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 102 ConstructedInterpolants, 0 QuantifiedInterpolants, 2400 SizeOfPredicates, 1 NumberOfNonLiveVariables, 77 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 9/12 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 112, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.9659090909090909, AVG_VARS_REMOVED_DURING_WEAKENING: 0.5454545454545454, AVG_WEAKENED_CONJUNCTS: 0.2727272727272727, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...