/usr/bin/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_init8_ground-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-06 22:26:54,537 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-06 22:26:54,540 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-06 22:26:54,558 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-06 22:26:54,558 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-06 22:26:54,560 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-06 22:26:54,562 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-06 22:26:54,574 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-06 22:26:54,576 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-06 22:26:54,577 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-06 22:26:54,578 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-06 22:26:54,579 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-06 22:26:54,579 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-06 22:26:54,580 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-06 22:26:54,581 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-06 22:26:54,582 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-06 22:26:54,584 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-06 22:26:54,586 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-06 22:26:54,587 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-06 22:26:54,591 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-06 22:26:54,593 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-06 22:26:54,595 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-06 22:26:54,596 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-06 22:26:54,597 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-06 22:26:54,602 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-06 22:26:54,602 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-06 22:26:54,602 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-06 22:26:54,604 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-06 22:26:54,604 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-06 22:26:54,607 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-06 22:26:54,607 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-06 22:26:54,608 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-06 22:26:54,609 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-06 22:26:54,610 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-06 22:26:54,615 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-06 22:26:54,615 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-06 22:26:54,616 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-06 22:26:54,616 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-06 22:26:54,616 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-06 22:26:54,621 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-06 22:26:54,622 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-06 22:26:54,622 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 [2019-11-06 22:26:54,644 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-06 22:26:54,645 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-06 22:26:54,647 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-06 22:26:54,647 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-06 22:26:54,647 INFO L138 SettingsManager]: * Use SBE=true [2019-11-06 22:26:54,648 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-06 22:26:54,648 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-06 22:26:54,648 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-06 22:26:54,648 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-06 22:26:54,648 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-06 22:26:54,649 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-06 22:26:54,650 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-06 22:26:54,650 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-06 22:26:54,650 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-06 22:26:54,650 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-06 22:26:54,650 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-06 22:26:54,650 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-06 22:26:54,651 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-06 22:26:54,651 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-06 22:26:54,651 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-06 22:26:54,651 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-06 22:26:54,652 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-06 22:26:54,652 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-06 22:26:54,652 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-06 22:26:54,652 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-06 22:26:54,652 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-06 22:26:54,653 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-06 22:26:54,653 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-06 22:26:54,653 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 [2019-11-06 22:26:54,947 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-06 22:26:54,966 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-06 22:26:54,970 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-06 22:26:54,972 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-06 22:26:54,972 INFO L275 PluginConnector]: CDTParser initialized [2019-11-06 22:26:54,973 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/standard_init8_ground-1.i [2019-11-06 22:26:55,045 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e274ca2ad/02ea744909c1403c91aa8f7693b4a1f5/FLAG8b6435e7c [2019-11-06 22:26:55,474 INFO L306 CDTParser]: Found 1 translation units. [2019-11-06 22:26:55,474 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-examples/standard_init8_ground-1.i [2019-11-06 22:26:55,481 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e274ca2ad/02ea744909c1403c91aa8f7693b4a1f5/FLAG8b6435e7c [2019-11-06 22:26:55,855 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e274ca2ad/02ea744909c1403c91aa8f7693b4a1f5 [2019-11-06 22:26:55,866 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-06 22:26:55,867 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-06 22:26:55,868 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-06 22:26:55,868 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-06 22:26:55,872 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-06 22:26:55,872 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:26:55" (1/1) ... [2019-11-06 22:26:55,875 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@630fa84f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:55, skipping insertion in model container [2019-11-06 22:26:55,876 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:26:55" (1/1) ... [2019-11-06 22:26:55,883 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-06 22:26:55,907 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-06 22:26:56,134 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 22:26:56,144 INFO L188 MainTranslator]: Completed pre-run [2019-11-06 22:26:56,181 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 22:26:56,292 INFO L192 MainTranslator]: Completed translation [2019-11-06 22:26:56,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:56 WrapperNode [2019-11-06 22:26:56,292 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-06 22:26:56,293 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-06 22:26:56,293 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-06 22:26:56,293 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-06 22:26:56,307 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:56" (1/1) ... [2019-11-06 22:26:56,307 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:56" (1/1) ... [2019-11-06 22:26:56,314 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:56" (1/1) ... [2019-11-06 22:26:56,315 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:56" (1/1) ... [2019-11-06 22:26:56,322 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:56" (1/1) ... [2019-11-06 22:26:56,331 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:56" (1/1) ... [2019-11-06 22:26:56,333 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:56" (1/1) ... [2019-11-06 22:26:56,336 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-06 22:26:56,340 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-06 22:26:56,340 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-06 22:26:56,340 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-06 22:26:56,341 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:56" (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 [2019-11-06 22:26:56,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-06 22:26:56,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-06 22:26:56,392 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-11-06 22:26:56,392 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-06 22:26:56,392 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-06 22:26:56,392 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-11-06 22:26:56,392 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-06 22:26:56,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-06 22:26:56,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-06 22:26:56,393 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-06 22:26:56,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-06 22:26:56,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-06 22:26:56,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-06 22:26:56,696 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-06 22:26:56,697 INFO L284 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-06 22:26:56,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:26:56 BoogieIcfgContainer [2019-11-06 22:26:56,699 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-06 22:26:56,700 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-06 22:26:56,700 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-06 22:26:56,703 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-06 22:26:56,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:26:55" (1/3) ... [2019-11-06 22:26:56,704 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34e5718a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:26:56, skipping insertion in model container [2019-11-06 22:26:56,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:56" (2/3) ... [2019-11-06 22:26:56,705 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34e5718a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:26:56, skipping insertion in model container [2019-11-06 22:26:56,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:26:56" (3/3) ... [2019-11-06 22:26:56,707 INFO L109 eAbstractionObserver]: Analyzing ICFG standard_init8_ground-1.i [2019-11-06 22:26:56,717 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-06 22:26:56,724 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-06 22:26:56,744 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-06 22:26:56,767 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-06 22:26:56,767 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-06 22:26:56,767 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-06 22:26:56,767 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-06 22:26:56,767 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-06 22:26:56,768 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-06 22:26:56,768 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-06 22:26:56,768 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-06 22:26:56,786 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2019-11-06 22:26:56,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-06 22:26:56,794 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:26:56,795 INFO L410 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] [2019-11-06 22:26:56,797 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:26:56,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:26:56,803 INFO L82 PathProgramCache]: Analyzing trace with hash 1916738342, now seen corresponding path program 1 times [2019-11-06 22:26:56,810 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:26:56,811 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85722263] [2019-11-06 22:26:56,811 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:26:56,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:26:56,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:26:56,940 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85722263] [2019-11-06 22:26:56,941 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:26:56,941 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-06 22:26:56,942 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666446059] [2019-11-06 22:26:56,946 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-06 22:26:56,948 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:26:56,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-06 22:26:56,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-06 22:26:56,965 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2019-11-06 22:26:56,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:26:56,990 INFO L93 Difference]: Finished difference Result 67 states and 102 transitions. [2019-11-06 22:26:56,991 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-06 22:26:56,992 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 27 [2019-11-06 22:26:56,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:26:57,001 INFO L225 Difference]: With dead ends: 67 [2019-11-06 22:26:57,001 INFO L226 Difference]: Without dead ends: 32 [2019-11-06 22:26:57,005 INFO L630 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 [2019-11-06 22:26:57,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-11-06 22:26:57,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2019-11-06 22:26:57,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-11-06 22:26:57,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 40 transitions. [2019-11-06 22:26:57,046 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 40 transitions. Word has length 27 [2019-11-06 22:26:57,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:26:57,047 INFO L462 AbstractCegarLoop]: Abstraction has 32 states and 40 transitions. [2019-11-06 22:26:57,047 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-06 22:26:57,047 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 40 transitions. [2019-11-06 22:26:57,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-06 22:26:57,049 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:26:57,049 INFO L410 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] [2019-11-06 22:26:57,049 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:26:57,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:26:57,050 INFO L82 PathProgramCache]: Analyzing trace with hash -330794466, now seen corresponding path program 1 times [2019-11-06 22:26:57,050 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:26:57,051 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660516045] [2019-11-06 22:26:57,051 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:26:57,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:26:57,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:26:57,125 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660516045] [2019-11-06 22:26:57,125 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:26:57,125 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-06 22:26:57,126 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297944037] [2019-11-06 22:26:57,127 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-06 22:26:57,128 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:26:57,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-06 22:26:57,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-06 22:26:57,129 INFO L87 Difference]: Start difference. First operand 32 states and 40 transitions. Second operand 3 states. [2019-11-06 22:26:57,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:26:57,233 INFO L93 Difference]: Finished difference Result 65 states and 88 transitions. [2019-11-06 22:26:57,233 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-06 22:26:57,233 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2019-11-06 22:26:57,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:26:57,235 INFO L225 Difference]: With dead ends: 65 [2019-11-06 22:26:57,235 INFO L226 Difference]: Without dead ends: 40 [2019-11-06 22:26:57,236 INFO L630 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 [2019-11-06 22:26:57,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2019-11-06 22:26:57,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2019-11-06 22:26:57,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-11-06 22:26:57,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 48 transitions. [2019-11-06 22:26:57,246 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 48 transitions. Word has length 27 [2019-11-06 22:26:57,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:26:57,247 INFO L462 AbstractCegarLoop]: Abstraction has 40 states and 48 transitions. [2019-11-06 22:26:57,247 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-06 22:26:57,247 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 48 transitions. [2019-11-06 22:26:57,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-06 22:26:57,248 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:26:57,249 INFO L410 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] [2019-11-06 22:26:57,249 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:26:57,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:26:57,250 INFO L82 PathProgramCache]: Analyzing trace with hash -1167956326, now seen corresponding path program 1 times [2019-11-06 22:26:57,250 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:26:57,250 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365612340] [2019-11-06 22:26:57,251 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:26:57,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:26:57,360 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-11-06 22:26:57,361 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365612340] [2019-11-06 22:26:57,361 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1024605031] [2019-11-06 22:26:57,361 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 [2019-11-06 22:26:57,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:26:57,433 INFO L256 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-06 22:26:57,440 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 22:26:57,474 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-11-06 22:26:57,474 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-06 22:26:57,525 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-11-06 22:26:57,525 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [846006460] [2019-11-06 22:26:57,534 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 36 [2019-11-06 22:26:57,598 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-11-06 22:26:57,599 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-11-06 22:26:57,649 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-11-06 22:26:57,651 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. [2019-11-06 22:26:57,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:26:57,654 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-11-06 22:26:57,692 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-11-06 22:26:57,693 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-11-06 22:26:57,695 INFO L553 sIntCurrentIteration]: We unified 34 AI predicates to 34 [2019-11-06 22:26:57,695 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-11-06 22:26:57,696 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-11-06 22:26:57,696 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4, 4, 4] total 7 [2019-11-06 22:26:57,697 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818840350] [2019-11-06 22:26:57,698 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-06 22:26:57,698 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:26:57,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-06 22:26:57,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-11-06 22:26:57,700 INFO L87 Difference]: Start difference. First operand 40 states and 48 transitions. Second operand 2 states. [2019-11-06 22:26:57,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:26:57,705 INFO L93 Difference]: Finished difference Result 40 states and 48 transitions. [2019-11-06 22:26:57,705 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-06 22:26:57,705 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 35 [2019-11-06 22:26:57,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:26:57,707 INFO L225 Difference]: With dead ends: 40 [2019-11-06 22:26:57,707 INFO L226 Difference]: Without dead ends: 0 [2019-11-06 22:26:57,708 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-11-06 22:26:57,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-06 22:26:57,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-06 22:26:57,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-06 22:26:57,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-06 22:26:57,710 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 35 [2019-11-06 22:26:57,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:26:57,711 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-06 22:26:57,711 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-06 22:26:57,711 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-06 22:26:57,711 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-06 22:26:57,921 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 22:26:57,925 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-06 22:26:57,965 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-11-06 22:26:57,965 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-11-06 22:26:57,965 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-11-06 22:26:57,965 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-06 22:26:57,965 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-11-06 22:26:57,966 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-11-06 22:26:57,966 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-06 22:26:57,966 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 3 50) no Hoare annotation was computed. [2019-11-06 22:26:57,966 INFO L439 ceAbstractionStarter]: At program point L11-2(lines 11 14) the Hoare annotation is: false [2019-11-06 22:26:57,966 INFO L443 ceAbstractionStarter]: For program point L11-3(lines 11 14) no Hoare annotation was computed. [2019-11-06 22:26:57,966 INFO L439 ceAbstractionStarter]: At program point L36-2(lines 36 39) the Hoare annotation is: false [2019-11-06 22:26:57,967 INFO L443 ceAbstractionStarter]: For program point L36-3(lines 36 39) no Hoare annotation was computed. [2019-11-06 22:26:57,967 INFO L439 ceAbstractionStarter]: At program point L21-2(lines 21 24) the Hoare annotation is: false [2019-11-06 22:26:57,967 INFO L443 ceAbstractionStarter]: For program point L21-3(lines 21 24) no Hoare annotation was computed. [2019-11-06 22:26:57,967 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 3 50) no Hoare annotation was computed. [2019-11-06 22:26:57,967 INFO L443 ceAbstractionStarter]: For program point L46-2(lines 46 48) no Hoare annotation was computed. [2019-11-06 22:26:57,967 INFO L439 ceAbstractionStarter]: At program point L46-3(lines 46 48) the Hoare annotation is: false [2019-11-06 22:26:57,968 INFO L443 ceAbstractionStarter]: For program point L46-4(lines 46 48) no Hoare annotation was computed. [2019-11-06 22:26:57,968 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 3 50) the Hoare annotation is: true [2019-11-06 22:26:57,969 INFO L439 ceAbstractionStarter]: At program point L47(line 47) the Hoare annotation is: false [2019-11-06 22:26:57,969 INFO L443 ceAbstractionStarter]: For program point L47-1(line 47) no Hoare annotation was computed. [2019-11-06 22:26:57,969 INFO L439 ceAbstractionStarter]: At program point L6-2(lines 6 9) the Hoare annotation is: false [2019-11-06 22:26:57,969 INFO L443 ceAbstractionStarter]: For program point L6-3(lines 6 9) no Hoare annotation was computed. [2019-11-06 22:26:57,969 INFO L439 ceAbstractionStarter]: At program point L31-2(lines 31 34) the Hoare annotation is: false [2019-11-06 22:26:57,969 INFO L443 ceAbstractionStarter]: For program point L31-3(lines 31 34) no Hoare annotation was computed. [2019-11-06 22:26:57,970 INFO L439 ceAbstractionStarter]: At program point L16-2(lines 16 19) the Hoare annotation is: false [2019-11-06 22:26:57,970 INFO L443 ceAbstractionStarter]: For program point L16-3(lines 16 19) no Hoare annotation was computed. [2019-11-06 22:26:57,970 INFO L439 ceAbstractionStarter]: At program point L41-2(lines 41 44) the Hoare annotation is: false [2019-11-06 22:26:57,970 INFO L443 ceAbstractionStarter]: For program point L41-3(lines 41 44) no Hoare annotation was computed. [2019-11-06 22:26:57,970 INFO L439 ceAbstractionStarter]: At program point L26-2(lines 26 29) the Hoare annotation is: false [2019-11-06 22:26:57,970 INFO L443 ceAbstractionStarter]: For program point L26-3(lines 26 29) no Hoare annotation was computed. [2019-11-06 22:26:57,971 INFO L443 ceAbstractionStarter]: For program point L2-1(line 2) no Hoare annotation was computed. [2019-11-06 22:26:57,971 INFO L443 ceAbstractionStarter]: For program point L2-3(line 2) no Hoare annotation was computed. [2019-11-06 22:26:57,971 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 2) the Hoare annotation is: true [2019-11-06 22:26:57,971 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 2) no Hoare annotation was computed. [2019-11-06 22:26:57,971 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 2) no Hoare annotation was computed. [2019-11-06 22:26:57,972 INFO L443 ceAbstractionStarter]: For program point L2(line 2) no Hoare annotation was computed. [2019-11-06 22:26:57,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:26:57 BoogieIcfgContainer [2019-11-06 22:26:57,989 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-06 22:26:57,993 INFO L168 Benchmark]: Toolchain (without parser) took 2123.49 ms. Allocated memory was 144.7 MB in the beginning and 202.4 MB in the end (delta: 57.7 MB). Free memory was 101.6 MB in the beginning and 92.0 MB in the end (delta: 9.6 MB). Peak memory consumption was 67.3 MB. Max. memory is 7.1 GB. [2019-11-06 22:26:57,996 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 144.7 MB. Free memory was 119.8 MB in the beginning and 119.6 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-11-06 22:26:57,998 INFO L168 Benchmark]: CACSL2BoogieTranslator took 424.64 ms. Allocated memory was 144.7 MB in the beginning and 202.4 MB in the end (delta: 57.7 MB). Free memory was 101.2 MB in the beginning and 181.3 MB in the end (delta: -80.2 MB). Peak memory consumption was 19.7 MB. Max. memory is 7.1 GB. [2019-11-06 22:26:57,999 INFO L168 Benchmark]: Boogie Preprocessor took 43.11 ms. Allocated memory is still 202.4 MB. Free memory was 181.3 MB in the beginning and 178.9 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2019-11-06 22:26:58,001 INFO L168 Benchmark]: RCFGBuilder took 358.90 ms. Allocated memory is still 202.4 MB. Free memory was 178.9 MB in the beginning and 162.9 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. [2019-11-06 22:26:58,008 INFO L168 Benchmark]: TraceAbstraction took 1289.01 ms. Allocated memory is still 202.4 MB. Free memory was 162.2 MB in the beginning and 92.0 MB in the end (delta: 70.3 MB). Peak memory consumption was 70.3 MB. Max. memory is 7.1 GB. [2019-11-06 22:26:58,021 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 144.7 MB. Free memory was 119.8 MB in the beginning and 119.6 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 424.64 ms. Allocated memory was 144.7 MB in the beginning and 202.4 MB in the end (delta: 57.7 MB). Free memory was 101.2 MB in the beginning and 181.3 MB in the end (delta: -80.2 MB). Peak memory consumption was 19.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 43.11 ms. Allocated memory is still 202.4 MB. Free memory was 181.3 MB in the beginning and 178.9 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 358.90 ms. Allocated memory is still 202.4 MB. Free memory was 178.9 MB in the beginning and 162.9 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1289.01 ms. Allocated memory is still 202.4 MB. Free memory was 162.2 MB in the beginning and 92.0 MB in the end (delta: 70.3 MB). Peak memory consumption was 70.3 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: 46]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 31]: Loop Invariant Derived loop invariant: 0 - 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, 37 locations, 1 error locations. Result: SAFE, OverallTime: 1.2s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 82 SDtfs, 0 SDslu, 16 SDs, 0 SdLazy, 24 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 78 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=2, 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, 15 LocationsWithAnnotation, 17 PreInvPairs, 17 NumberOfFragments, 15 HoareAnnotationTreeSize, 17 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 15 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 124 NumberOfCodeBlocks, 124 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 154 ConstructedInterpolants, 0 QuantifiedInterpolants, 5280 SizeOfPredicates, 1 NumberOfNonLiveVariables, 105 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 21/24 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 121, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.9779411764705882, AVG_VARS_REMOVED_DURING_WEAKENING: 0.47058823529411764, AVG_WEAKENED_CONJUNCTS: 0.17647058823529413, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...