/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/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/loops/for_bounded_loop1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 13:58:36,794 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 13:58:36,797 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 13:58:36,815 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 13:58:36,815 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 13:58:36,817 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 13:58:36,819 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 13:58:36,828 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 13:58:36,832 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 13:58:36,835 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 13:58:36,837 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 13:58:36,839 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 13:58:36,839 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 13:58:36,842 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 13:58:36,843 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 13:58:36,844 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 13:58:36,846 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 13:58:36,846 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 13:58:36,848 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 13:58:36,853 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 13:58:36,858 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 13:58:36,861 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 13:58:36,862 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 13:58:36,862 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 13:58:36,864 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-07 13:58:36,864 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-07 13:58:36,864 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-07 13:58:36,865 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-07 13:58:36,866 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-07 13:58:36,866 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-07 13:58:36,867 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-07 13:58:36,867 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-07 13:58:36,868 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-07 13:58:36,869 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-07 13:58:36,869 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-07 13:58:36,870 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-07 13:58:36,870 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-07 13:58:36,871 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-07 13:58:36,871 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 13:58:36,871 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 13:58:36,872 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 13:58:36,873 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-07 13:58:36,882 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 13:58:36,882 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 13:58:36,883 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 13:58:36,883 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 13:58:36,883 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 13:58:36,884 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 13:58:36,884 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 13:58:36,884 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 13:58:36,884 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 13:58:36,884 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 13:58:36,885 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 13:58:36,885 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 13:58:36,885 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 13:58:36,885 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 13:58:36,885 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 13:58:36,886 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-07 13:58:36,886 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 13:58:36,886 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 13:58:36,886 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 13:58:36,886 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 13:58:36,887 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-07 13:58:36,887 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 13:58:36,887 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-07 13:58:37,175 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 13:58:37,192 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 13:58:37,196 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 13:58:37,197 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 13:58:37,198 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 13:58:37,198 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/for_bounded_loop1.c [2020-07-07 13:58:37,273 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80bad0b27/168e66298ab04561827a3b4d033be1e3/FLAGc9af51510 [2020-07-07 13:58:37,771 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 13:58:37,771 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/for_bounded_loop1.c [2020-07-07 13:58:37,778 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80bad0b27/168e66298ab04561827a3b4d033be1e3/FLAGc9af51510 [2020-07-07 13:58:38,095 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80bad0b27/168e66298ab04561827a3b4d033be1e3 [2020-07-07 13:58:38,105 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 13:58:38,107 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 13:58:38,108 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 13:58:38,108 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 13:58:38,112 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 13:58:38,113 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 01:58:38" (1/1) ... [2020-07-07 13:58:38,116 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@161b7128 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:58:38, skipping insertion in model container [2020-07-07 13:58:38,116 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 01:58:38" (1/1) ... [2020-07-07 13:58:38,124 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 13:58:38,141 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 13:58:38,307 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 13:58:38,311 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 13:58:38,330 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 13:58:38,345 INFO L208 MainTranslator]: Completed translation [2020-07-07 13:58:38,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:58:38 WrapperNode [2020-07-07 13:58:38,346 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 13:58:38,347 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 13:58:38,347 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 13:58:38,347 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 13:58:38,362 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:58:38" (1/1) ... [2020-07-07 13:58:38,362 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:58:38" (1/1) ... [2020-07-07 13:58:38,368 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:58:38" (1/1) ... [2020-07-07 13:58:38,368 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:58:38" (1/1) ... [2020-07-07 13:58:38,372 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:58:38" (1/1) ... [2020-07-07 13:58:38,378 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:58:38" (1/1) ... [2020-07-07 13:58:38,379 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:58:38" (1/1) ... [2020-07-07 13:58:38,472 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 13:58:38,472 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 13:58:38,472 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 13:58:38,473 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 13:58:38,474 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:58:38" (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 [2020-07-07 13:58:38,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 13:58:38,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 13:58:38,535 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-07 13:58:38,535 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-07 13:58:38,535 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 13:58:38,535 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 13:58:38,535 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-07 13:58:38,535 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-07 13:58:38,536 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-07 13:58:38,536 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 13:58:38,536 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 13:58:38,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 13:58:38,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 13:58:38,867 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 13:58:38,867 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-07 13:58:38,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 01:58:38 BoogieIcfgContainer [2020-07-07 13:58:38,872 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 13:58:38,873 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 13:58:38,874 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 13:58:38,877 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 13:58:38,877 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 01:58:38" (1/3) ... [2020-07-07 13:58:38,878 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64f80a15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 01:58:38, skipping insertion in model container [2020-07-07 13:58:38,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:58:38" (2/3) ... [2020-07-07 13:58:38,879 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64f80a15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 01:58:38, skipping insertion in model container [2020-07-07 13:58:38,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 01:58:38" (3/3) ... [2020-07-07 13:58:38,881 INFO L109 eAbstractionObserver]: Analyzing ICFG for_bounded_loop1.c [2020-07-07 13:58:38,893 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-07 13:58:38,902 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 13:58:38,916 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 13:58:38,940 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 13:58:38,941 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 13:58:38,941 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-07 13:58:38,941 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 13:58:38,941 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 13:58:38,941 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 13:58:38,942 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 13:58:38,942 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 13:58:38,959 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2020-07-07 13:58:38,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-07-07 13:58:38,977 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:58:38,979 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:58:38,979 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:58:38,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:58:38,986 INFO L82 PathProgramCache]: Analyzing trace with hash 546510172, now seen corresponding path program 1 times [2020-07-07 13:58:38,994 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:58:38,995 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1832654808] [2020-07-07 13:58:38,995 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:58:39,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:58:39,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:58:39,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:58:39,133 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:58:39,135 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1832654808] [2020-07-07 13:58:39,137 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:58:39,138 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-07 13:58:39,138 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848259724] [2020-07-07 13:58:39,144 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-07 13:58:39,144 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:58:39,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-07 13:58:39,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-07 13:58:39,162 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2020-07-07 13:58:39,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:58:39,196 INFO L93 Difference]: Finished difference Result 61 states and 75 transitions. [2020-07-07 13:58:39,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-07 13:58:39,200 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2020-07-07 13:58:39,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:58:39,211 INFO L225 Difference]: With dead ends: 61 [2020-07-07 13:58:39,211 INFO L226 Difference]: Without dead ends: 31 [2020-07-07 13:58:39,215 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-07 13:58:39,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-07-07 13:58:39,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-07-07 13:58:39,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-07-07 13:58:39,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions. [2020-07-07 13:58:39,255 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 17 [2020-07-07 13:58:39,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:58:39,256 INFO L479 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions. [2020-07-07 13:58:39,256 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-07 13:58:39,256 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2020-07-07 13:58:39,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-07-07 13:58:39,257 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:58:39,257 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:58:39,258 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 13:58:39,258 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:58:39,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:58:39,258 INFO L82 PathProgramCache]: Analyzing trace with hash 528039752, now seen corresponding path program 1 times [2020-07-07 13:58:39,259 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:58:39,259 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [55767581] [2020-07-07 13:58:39,259 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:58:39,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:58:39,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:58:39,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:58:39,327 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:58:39,327 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [55767581] [2020-07-07 13:58:39,328 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:58:39,328 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 13:58:39,328 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952373037] [2020-07-07 13:58:39,329 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 13:58:39,329 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:58:39,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 13:58:39,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 13:58:39,330 INFO L87 Difference]: Start difference. First operand 31 states and 33 transitions. Second operand 4 states. [2020-07-07 13:58:39,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:58:39,391 INFO L93 Difference]: Finished difference Result 39 states and 41 transitions. [2020-07-07 13:58:39,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-07 13:58:39,392 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-07-07 13:58:39,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:58:39,394 INFO L225 Difference]: With dead ends: 39 [2020-07-07 13:58:39,394 INFO L226 Difference]: Without dead ends: 32 [2020-07-07 13:58:39,396 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-07 13:58:39,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-07-07 13:58:39,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2020-07-07 13:58:39,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-07-07 13:58:39,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 34 transitions. [2020-07-07 13:58:39,408 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 34 transitions. Word has length 17 [2020-07-07 13:58:39,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:58:39,409 INFO L479 AbstractCegarLoop]: Abstraction has 32 states and 34 transitions. [2020-07-07 13:58:39,409 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 13:58:39,409 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 34 transitions. [2020-07-07 13:58:39,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-07-07 13:58:39,410 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:58:39,410 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:58:39,411 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 13:58:39,411 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:58:39,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:58:39,412 INFO L82 PathProgramCache]: Analyzing trace with hash -789875431, now seen corresponding path program 1 times [2020-07-07 13:58:39,412 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:58:39,412 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1195512867] [2020-07-07 13:58:39,412 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:58:39,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:58:39,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:58:39,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:58:39,548 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:58:39,548 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1195512867] [2020-07-07 13:58:39,549 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:58:39,549 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-07 13:58:39,549 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710812539] [2020-07-07 13:58:39,550 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 13:58:39,550 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:58:39,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 13:58:39,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-07 13:58:39,551 INFO L87 Difference]: Start difference. First operand 32 states and 34 transitions. Second operand 6 states. [2020-07-07 13:58:39,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:58:39,652 INFO L93 Difference]: Finished difference Result 42 states and 44 transitions. [2020-07-07 13:58:39,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-07 13:58:39,653 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-07-07 13:58:39,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:58:39,654 INFO L225 Difference]: With dead ends: 42 [2020-07-07 13:58:39,654 INFO L226 Difference]: Without dead ends: 40 [2020-07-07 13:58:39,655 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-07-07 13:58:39,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-07-07 13:58:39,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 36. [2020-07-07 13:58:39,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-07-07 13:58:39,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 37 transitions. [2020-07-07 13:58:39,670 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 37 transitions. Word has length 18 [2020-07-07 13:58:39,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:58:39,671 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 37 transitions. [2020-07-07 13:58:39,671 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 13:58:39,671 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 37 transitions. [2020-07-07 13:58:39,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-07-07 13:58:39,672 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:58:39,672 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:58:39,672 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-07 13:58:39,673 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:58:39,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:58:39,673 INFO L82 PathProgramCache]: Analyzing trace with hash -1565658423, now seen corresponding path program 1 times [2020-07-07 13:58:39,673 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:58:39,674 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [550740585] [2020-07-07 13:58:39,674 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:58:39,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:58:39,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:58:39,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:58:39,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:58:39,879 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:58:39,879 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [550740585] [2020-07-07 13:58:39,880 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:58:39,880 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-07 13:58:39,880 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637689329] [2020-07-07 13:58:39,881 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-07 13:58:39,881 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:58:39,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-07 13:58:39,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-07-07 13:58:39,882 INFO L87 Difference]: Start difference. First operand 36 states and 37 transitions. Second operand 9 states. [2020-07-07 13:58:40,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:58:40,086 INFO L93 Difference]: Finished difference Result 46 states and 47 transitions. [2020-07-07 13:58:40,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-07 13:58:40,086 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 28 [2020-07-07 13:58:40,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:58:40,088 INFO L225 Difference]: With dead ends: 46 [2020-07-07 13:58:40,088 INFO L226 Difference]: Without dead ends: 42 [2020-07-07 13:58:40,089 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2020-07-07 13:58:40,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-07-07 13:58:40,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 38. [2020-07-07 13:58:40,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-07-07 13:58:40,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 38 transitions. [2020-07-07 13:58:40,100 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 38 transitions. Word has length 28 [2020-07-07 13:58:40,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:58:40,100 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 38 transitions. [2020-07-07 13:58:40,100 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-07 13:58:40,100 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 38 transitions. [2020-07-07 13:58:40,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-07-07 13:58:40,102 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:58:40,102 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:58:40,102 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-07 13:58:40,103 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:58:40,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:58:40,103 INFO L82 PathProgramCache]: Analyzing trace with hash 1612602333, now seen corresponding path program 1 times [2020-07-07 13:58:40,103 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:58:40,104 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [194513265] [2020-07-07 13:58:40,104 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:58:40,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 13:58:40,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 13:58:40,172 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:58:40,172 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-07 13:58:40,172 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-07 13:58:40,173 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-07 13:58:40,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 01:58:40 BoogieIcfgContainer [2020-07-07 13:58:40,190 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 13:58:40,193 INFO L168 Benchmark]: Toolchain (without parser) took 2085.12 ms. Allocated memory was 144.2 MB in the beginning and 233.8 MB in the end (delta: 89.7 MB). Free memory was 103.4 MB in the beginning and 188.2 MB in the end (delta: -84.9 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2020-07-07 13:58:40,194 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 144.2 MB. Free memory was 120.8 MB in the beginning and 120.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-07 13:58:40,195 INFO L168 Benchmark]: CACSL2BoogieTranslator took 238.51 ms. Allocated memory is still 144.2 MB. Free memory was 103.2 MB in the beginning and 93.6 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2020-07-07 13:58:40,196 INFO L168 Benchmark]: Boogie Preprocessor took 125.01 ms. Allocated memory was 144.2 MB in the beginning and 202.4 MB in the end (delta: 58.2 MB). Free memory was 93.6 MB in the beginning and 182.5 MB in the end (delta: -88.9 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. [2020-07-07 13:58:40,197 INFO L168 Benchmark]: RCFGBuilder took 399.85 ms. Allocated memory is still 202.4 MB. Free memory was 182.5 MB in the beginning and 167.3 MB in the end (delta: 15.2 MB). Peak memory consumption was 15.2 MB. Max. memory is 7.1 GB. [2020-07-07 13:58:40,198 INFO L168 Benchmark]: TraceAbstraction took 1316.58 ms. Allocated memory was 202.4 MB in the beginning and 233.8 MB in the end (delta: 31.5 MB). Free memory was 166.6 MB in the beginning and 188.2 MB in the end (delta: -21.7 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2020-07-07 13:58:40,202 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 144.2 MB. Free memory was 120.8 MB in the beginning and 120.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 238.51 ms. Allocated memory is still 144.2 MB. Free memory was 103.2 MB in the beginning and 93.6 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 125.01 ms. Allocated memory was 144.2 MB in the beginning and 202.4 MB in the end (delta: 58.2 MB). Free memory was 93.6 MB in the beginning and 182.5 MB in the end (delta: -88.9 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 399.85 ms. Allocated memory is still 202.4 MB. Free memory was 182.5 MB in the beginning and 167.3 MB in the end (delta: 15.2 MB). Peak memory consumption was 15.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1316.58 ms. Allocated memory was 202.4 MB in the beginning and 233.8 MB in the end (delta: 31.5 MB). Free memory was 166.6 MB in the beginning and 188.2 MB in the end (delta: -21.7 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 9]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L17] int i=0, x=0, y=0; [L18] int n=__VERIFIER_nondet_int(); [L19] COND FALSE !(!(n>0)) [L20] i=0 [L20] COND TRUE i