/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 --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.8 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops/for_bounded_loop1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-22 01:32:32,939 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 01:32:32,942 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 01:32:32,968 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 01:32:32,968 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 01:32:32,969 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 01:32:32,972 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 01:32:32,978 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 01:32:32,982 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 01:32:32,983 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 01:32:32,985 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 01:32:32,986 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 01:32:32,986 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 01:32:32,989 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 01:32:32,991 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 01:32:32,992 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 01:32:32,995 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 01:32:32,996 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 01:32:33,000 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 01:32:33,003 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 01:32:33,007 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 01:32:33,008 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 01:32:33,010 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 01:32:33,011 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 01:32:33,016 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-22 01:32:33,035 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 01:32:33,036 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 01:32:33,037 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 01:32:33,039 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-22 01:32:33,073 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 01:32:33,073 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 01:32:33,074 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-22 01:32:33,075 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-22 01:32:33,075 INFO L138 SettingsManager]: * Use SBE=true [2020-08-22 01:32:33,075 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 01:32:33,075 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 01:32:33,075 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 01:32:33,076 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 01:32:33,076 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 01:32:33,076 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 01:32:33,076 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 01:32:33,076 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 01:32:33,076 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 01:32:33,077 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 01:32:33,077 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 01:32:33,077 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 01:32:33,077 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 01:32:33,077 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-22 01:32:33,078 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 01:32:33,078 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 01:32:33,078 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 01:32:33,078 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 01:32:33,078 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-22 01:32:33,079 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-22 01:32:33,079 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-22 01:32:33,079 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-22 01:32:33,079 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 01:32:33,079 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-22 01:32:33,080 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; [2020-08-22 01:32:33,398 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 01:32:33,416 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 01:32:33,419 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 01:32:33,421 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 01:32:33,422 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 01:32:33,422 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/for_bounded_loop1.c [2020-08-22 01:32:33,496 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5096afc03/765b284fedbe4e5b8c68116e97970ada/FLAGf43921a4a [2020-08-22 01:32:33,967 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 01:32:33,968 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops/for_bounded_loop1.c [2020-08-22 01:32:33,974 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5096afc03/765b284fedbe4e5b8c68116e97970ada/FLAGf43921a4a [2020-08-22 01:32:34,335 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5096afc03/765b284fedbe4e5b8c68116e97970ada [2020-08-22 01:32:34,345 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 01:32:34,347 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 01:32:34,348 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 01:32:34,348 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 01:32:34,351 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 01:32:34,352 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 01:32:34" (1/1) ... [2020-08-22 01:32:34,355 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@763ad0aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:32:34, skipping insertion in model container [2020-08-22 01:32:34,355 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 01:32:34" (1/1) ... [2020-08-22 01:32:34,362 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 01:32:34,379 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 01:32:34,559 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 01:32:34,563 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 01:32:34,580 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 01:32:34,594 INFO L208 MainTranslator]: Completed translation [2020-08-22 01:32:34,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:32:34 WrapperNode [2020-08-22 01:32:34,595 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 01:32:34,595 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 01:32:34,596 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 01:32:34,596 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 01:32:34,606 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:32:34" (1/1) ... [2020-08-22 01:32:34,606 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:32:34" (1/1) ... [2020-08-22 01:32:34,687 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:32:34" (1/1) ... [2020-08-22 01:32:34,688 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:32:34" (1/1) ... [2020-08-22 01:32:34,692 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:32:34" (1/1) ... [2020-08-22 01:32:34,697 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:32:34" (1/1) ... [2020-08-22 01:32:34,703 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:32:34" (1/1) ... [2020-08-22 01:32:34,710 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 01:32:34,711 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 01:32:34,711 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 01:32:34,711 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 01:32:34,712 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:32:34" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-08-22 01:32:34,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 01:32:34,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 01:32:34,769 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-08-22 01:32:34,769 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-08-22 01:32:34,769 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 01:32:34,770 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 01:32:34,770 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-22 01:32:34,770 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-08-22 01:32:34,770 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-08-22 01:32:34,770 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 01:32:34,770 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 01:32:34,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 01:32:34,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 01:32:34,993 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 01:32:34,993 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-22 01:32:34,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 01:32:34 BoogieIcfgContainer [2020-08-22 01:32:34,998 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 01:32:34,999 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 01:32:34,999 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 01:32:35,002 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 01:32:35,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 01:32:34" (1/3) ... [2020-08-22 01:32:35,003 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@583c7475 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 01:32:35, skipping insertion in model container [2020-08-22 01:32:35,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:32:34" (2/3) ... [2020-08-22 01:32:35,004 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@583c7475 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 01:32:35, skipping insertion in model container [2020-08-22 01:32:35,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 01:32:34" (3/3) ... [2020-08-22 01:32:35,006 INFO L109 eAbstractionObserver]: Analyzing ICFG for_bounded_loop1.c [2020-08-22 01:32:35,020 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 01:32:35,027 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 01:32:35,043 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 01:32:35,078 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 01:32:35,079 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 01:32:35,079 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 01:32:35,079 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 01:32:35,079 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 01:32:35,080 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 01:32:35,080 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 01:32:35,080 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 01:32:35,105 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2020-08-22 01:32:35,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-08-22 01:32:35,113 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 01:32:35,114 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 01:32:35,114 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 01:32:35,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 01:32:35,121 INFO L82 PathProgramCache]: Analyzing trace with hash 1474053726, now seen corresponding path program 1 times [2020-08-22 01:32:35,131 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 01:32:35,132 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [697304458] [2020-08-22 01:32:35,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 01:32:35,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:32:35,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 01:32:35,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:32:35,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 01:32:35,266 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [697304458] [2020-08-22 01:32:35,268 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 01:32:35,268 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-08-22 01:32:35,269 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106833396] [2020-08-22 01:32:35,275 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-08-22 01:32:35,275 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 01:32:35,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-08-22 01:32:35,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-08-22 01:32:35,293 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 2 states. [2020-08-22 01:32:35,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 01:32:35,320 INFO L93 Difference]: Finished difference Result 40 states and 54 transitions. [2020-08-22 01:32:35,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-08-22 01:32:35,321 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-08-22 01:32:35,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 01:32:35,331 INFO L225 Difference]: With dead ends: 40 [2020-08-22 01:32:35,332 INFO L226 Difference]: Without dead ends: 19 [2020-08-22 01:32:35,336 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 [2020-08-22 01:32:35,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-08-22 01:32:35,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-08-22 01:32:35,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-08-22 01:32:35,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2020-08-22 01:32:35,386 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 11 [2020-08-22 01:32:35,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 01:32:35,386 INFO L479 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2020-08-22 01:32:35,386 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-08-22 01:32:35,386 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2020-08-22 01:32:35,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-08-22 01:32:35,387 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 01:32:35,388 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 01:32:35,388 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 01:32:35,389 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 01:32:35,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 01:32:35,389 INFO L82 PathProgramCache]: Analyzing trace with hash 1462047953, now seen corresponding path program 1 times [2020-08-22 01:32:35,389 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 01:32:35,390 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [390967593] [2020-08-22 01:32:35,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 01:32:35,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:32:35,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 01:32:35,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:32:35,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 01:32:35,436 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [390967593] [2020-08-22 01:32:35,437 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 01:32:35,437 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 01:32:35,437 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541935916] [2020-08-22 01:32:35,439 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 01:32:35,439 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 01:32:35,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 01:32:35,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 01:32:35,441 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand 3 states. [2020-08-22 01:32:35,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 01:32:35,475 INFO L93 Difference]: Finished difference Result 27 states and 29 transitions. [2020-08-22 01:32:35,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 01:32:35,476 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-08-22 01:32:35,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 01:32:35,477 INFO L225 Difference]: With dead ends: 27 [2020-08-22 01:32:35,478 INFO L226 Difference]: Without dead ends: 20 [2020-08-22 01:32:35,479 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 01:32:35,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-08-22 01:32:35,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2020-08-22 01:32:35,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-08-22 01:32:35,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2020-08-22 01:32:35,486 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 11 [2020-08-22 01:32:35,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 01:32:35,486 INFO L479 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2020-08-22 01:32:35,487 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 01:32:35,487 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2020-08-22 01:32:35,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-08-22 01:32:35,487 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 01:32:35,488 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 01:32:35,488 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 01:32:35,488 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 01:32:35,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 01:32:35,489 INFO L82 PathProgramCache]: Analyzing trace with hash 1463775831, now seen corresponding path program 1 times [2020-08-22 01:32:35,489 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 01:32:35,489 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [107289099] [2020-08-22 01:32:35,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 01:32:35,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:32:35,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 01:32:35,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:32:35,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 01:32:35,610 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [107289099] [2020-08-22 01:32:35,610 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 01:32:35,610 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-22 01:32:35,611 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40138473] [2020-08-22 01:32:35,611 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 01:32:35,612 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 01:32:35,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 01:32:35,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-22 01:32:35,613 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand 6 states. [2020-08-22 01:32:35,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 01:32:35,713 INFO L93 Difference]: Finished difference Result 28 states and 30 transitions. [2020-08-22 01:32:35,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-22 01:32:35,714 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2020-08-22 01:32:35,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 01:32:35,715 INFO L225 Difference]: With dead ends: 28 [2020-08-22 01:32:35,716 INFO L226 Difference]: Without dead ends: 26 [2020-08-22 01:32:35,717 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-22 01:32:35,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-08-22 01:32:35,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 24. [2020-08-22 01:32:35,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-08-22 01:32:35,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2020-08-22 01:32:35,728 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 11 [2020-08-22 01:32:35,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 01:32:35,728 INFO L479 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2020-08-22 01:32:35,728 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 01:32:35,729 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2020-08-22 01:32:35,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-08-22 01:32:35,729 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 01:32:35,730 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 01:32:35,730 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 01:32:35,730 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 01:32:35,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 01:32:35,731 INFO L82 PathProgramCache]: Analyzing trace with hash -541842987, now seen corresponding path program 1 times [2020-08-22 01:32:35,731 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 01:32:35,732 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1105749681] [2020-08-22 01:32:35,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 01:32:35,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:32:35,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 01:32:35,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:32:35,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-22 01:32:35,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:32:35,852 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 01:32:35,852 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1105749681] [2020-08-22 01:32:35,853 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 01:32:35,853 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-22 01:32:35,853 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285963482] [2020-08-22 01:32:35,854 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 01:32:35,854 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 01:32:35,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 01:32:35,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-08-22 01:32:35,855 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand 7 states. [2020-08-22 01:32:35,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 01:32:35,962 INFO L93 Difference]: Finished difference Result 32 states and 33 transitions. [2020-08-22 01:32:35,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-22 01:32:35,963 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2020-08-22 01:32:35,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 01:32:35,965 INFO L225 Difference]: With dead ends: 32 [2020-08-22 01:32:35,965 INFO L226 Difference]: Without dead ends: 28 [2020-08-22 01:32:35,966 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-08-22 01:32:35,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-08-22 01:32:35,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 26. [2020-08-22 01:32:35,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-08-22 01:32:35,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2020-08-22 01:32:35,974 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 18 [2020-08-22 01:32:35,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 01:32:35,974 INFO L479 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2020-08-22 01:32:35,975 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 01:32:35,975 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2020-08-22 01:32:35,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-08-22 01:32:35,976 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 01:32:35,976 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] [2020-08-22 01:32:35,976 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 01:32:35,977 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 01:32:35,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 01:32:35,977 INFO L82 PathProgramCache]: Analyzing trace with hash 814692392, now seen corresponding path program 1 times [2020-08-22 01:32:35,978 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 01:32:35,978 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [750332565] [2020-08-22 01:32:35,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 01:32:35,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 01:32:35,997 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-22 01:32:35,998 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 01:32:36,002 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 01:32:36,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 01:32:36 BoogieIcfgContainer [2020-08-22 01:32:36,018 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 01:32:36,021 INFO L168 Benchmark]: Toolchain (without parser) took 1673.69 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 103.8 MB in the beginning and 99.9 MB in the end (delta: 3.9 MB). Peak memory consumption was 66.8 MB. Max. memory is 7.1 GB. [2020-08-22 01:32:36,022 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.6 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. [2020-08-22 01:32:36,023 INFO L168 Benchmark]: CACSL2BoogieTranslator took 247.41 ms. Allocated memory is still 140.5 MB. Free memory was 103.8 MB in the beginning and 93.7 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2020-08-22 01:32:36,025 INFO L168 Benchmark]: Boogie Preprocessor took 114.78 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 93.7 MB in the beginning and 181.9 MB in the end (delta: -88.2 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB. [2020-08-22 01:32:36,025 INFO L168 Benchmark]: RCFGBuilder took 287.18 ms. Allocated memory is still 203.4 MB. Free memory was 181.9 MB in the beginning and 168.6 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 7.1 GB. [2020-08-22 01:32:36,026 INFO L168 Benchmark]: TraceAbstraction took 1019.31 ms. Allocated memory is still 203.4 MB. Free memory was 168.6 MB in the beginning and 99.9 MB in the end (delta: 68.7 MB). Peak memory consumption was 68.7 MB. Max. memory is 7.1 GB. [2020-08-22 01:32:36,030 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.6 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 247.41 ms. Allocated memory is still 140.5 MB. Free memory was 103.8 MB in the beginning and 93.7 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 114.78 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 93.7 MB in the beginning and 181.9 MB in the end (delta: -88.2 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 287.18 ms. Allocated memory is still 203.4 MB. Free memory was 181.9 MB in the beginning and 168.6 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1019.31 ms. Allocated memory is still 203.4 MB. Free memory was 168.6 MB in the beginning and 99.9 MB in the end (delta: 68.7 MB). Peak memory consumption was 68.7 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