/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=NARROWEST --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/n.c40.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-21 21:29:28,129 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 21:29:28,133 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 21:29:28,172 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-21 21:29:28,173 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-21 21:29:28,182 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-21 21:29:28,184 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-21 21:29:28,188 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-21 21:29:28,190 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-21 21:29:28,193 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-21 21:29:28,194 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-21 21:29:28,195 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-21 21:29:28,195 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 21:29:28,198 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 21:29:28,200 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 21:29:28,201 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 21:29:28,203 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 21:29:28,205 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 21:29:28,206 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 21:29:28,216 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 21:29:28,218 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 21:29:28,219 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 21:29:28,220 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 21:29:28,221 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 21:29:28,236 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-21 21:29:28,242 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-21 21:29:28,243 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-21 21:29:28,243 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-21 21:29:28,244 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-21 21:29:28,245 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-21 21:29:28,245 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-21 21:29:28,249 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-21 21:29:28,249 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-21 21:29:28,249 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 21:29:28,250 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 21:29:28,253 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 21:29:28,254 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 [2020-08-21 21:29:28,294 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 21:29:28,295 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 21:29:28,297 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 21:29:28,297 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 21:29:28,297 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 21:29:28,297 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 21:29:28,298 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-21 21:29:28,298 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 21:29:28,298 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-21 21:29:28,298 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 21:29:28,300 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 21:29:28,300 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 21:29:28,300 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 21:29:28,300 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-21 21:29:28,301 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 21:29:28,301 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 21:29:28,301 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 21:29:28,301 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 21:29:28,301 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 21:29:28,302 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 21:29:28,302 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 21:29:28,302 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 21:29:28,303 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 21:29:28,303 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 21:29:28,303 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 21:29:28,303 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 21:29:28,303 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 21:29:28,303 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 21:29:28,304 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 21:29:28,304 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=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; [2020-08-21 21:29:28,630 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 21:29:28,645 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 21:29:28,649 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 21:29:28,651 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 21:29:28,651 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 21:29:28,652 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/n.c40.c [2020-08-21 21:29:28,730 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/83234f6e1/1562e4011a7c422c9bc5d3210619bd3f/FLAGc416152da [2020-08-21 21:29:29,216 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 21:29:29,217 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops/n.c40.c [2020-08-21 21:29:29,224 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/83234f6e1/1562e4011a7c422c9bc5d3210619bd3f/FLAGc416152da [2020-08-21 21:29:29,586 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/83234f6e1/1562e4011a7c422c9bc5d3210619bd3f [2020-08-21 21:29:29,597 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 21:29:29,599 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 21:29:29,600 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 21:29:29,600 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 21:29:29,604 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 21:29:29,605 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 09:29:29" (1/1) ... [2020-08-21 21:29:29,608 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a7ae4f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 09:29:29, skipping insertion in model container [2020-08-21 21:29:29,609 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 09:29:29" (1/1) ... [2020-08-21 21:29:29,617 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 21:29:29,636 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 21:29:29,827 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 21:29:29,840 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 21:29:29,861 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 21:29:29,881 INFO L208 MainTranslator]: Completed translation [2020-08-21 21:29:29,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 09:29:29 WrapperNode [2020-08-21 21:29:29,882 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 21:29:29,882 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 21:29:29,882 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 21:29:29,882 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 21:29:29,895 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 09:29:29" (1/1) ... [2020-08-21 21:29:29,895 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 09:29:29" (1/1) ... [2020-08-21 21:29:29,983 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 09:29:29" (1/1) ... [2020-08-21 21:29:29,984 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 09:29:29" (1/1) ... [2020-08-21 21:29:30,001 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 09:29:29" (1/1) ... [2020-08-21 21:29:30,010 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 09:29:29" (1/1) ... [2020-08-21 21:29:30,018 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 09:29:29" (1/1) ... [2020-08-21 21:29:30,022 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 21:29:30,023 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 21:29:30,023 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 21:29:30,023 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 21:29:30,024 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 09:29:29" (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 [2020-08-21 21:29:30,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 21:29:30,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 21:29:30,081 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 21:29:30,081 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 21:29:30,082 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-21 21:29:30,082 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 21:29:30,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-21 21:29:30,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-21 21:29:30,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 21:29:30,082 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-21 21:29:30,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 21:29:30,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-21 21:29:30,321 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 21:29:30,322 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-21 21:29:30,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 09:29:30 BoogieIcfgContainer [2020-08-21 21:29:30,326 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 21:29:30,328 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 21:29:30,328 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 21:29:30,332 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 21:29:30,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 09:29:29" (1/3) ... [2020-08-21 21:29:30,333 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4612e11f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 09:29:30, skipping insertion in model container [2020-08-21 21:29:30,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 09:29:29" (2/3) ... [2020-08-21 21:29:30,334 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4612e11f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 09:29:30, skipping insertion in model container [2020-08-21 21:29:30,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 09:29:30" (3/3) ... [2020-08-21 21:29:30,336 INFO L109 eAbstractionObserver]: Analyzing ICFG n.c40.c [2020-08-21 21:29:30,349 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 21:29:30,356 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-21 21:29:30,376 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-21 21:29:30,415 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 21:29:30,415 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 21:29:30,416 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 21:29:30,416 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 21:29:30,416 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 21:29:30,416 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 21:29:30,417 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 21:29:30,417 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 21:29:30,440 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2020-08-21 21:29:30,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-08-21 21:29:30,447 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 21:29:30,448 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 21:29:30,449 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 21:29:30,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 21:29:30,457 INFO L82 PathProgramCache]: Analyzing trace with hash -1526440521, now seen corresponding path program 1 times [2020-08-21 21:29:30,467 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 21:29:30,468 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [379153970] [2020-08-21 21:29:30,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 21:29:30,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:29:30,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 21:29:30,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:29:30,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 21:29:30,728 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [379153970] [2020-08-21 21:29:30,730 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 21:29:30,731 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-21 21:29:30,732 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463517964] [2020-08-21 21:29:30,738 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-21 21:29:30,738 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 21:29:30,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-21 21:29:30,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-21 21:29:30,758 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 3 states. [2020-08-21 21:29:30,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 21:29:30,843 INFO L93 Difference]: Finished difference Result 28 states and 32 transitions. [2020-08-21 21:29:30,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-21 21:29:30,846 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-08-21 21:29:30,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 21:29:30,857 INFO L225 Difference]: With dead ends: 28 [2020-08-21 21:29:30,857 INFO L226 Difference]: Without dead ends: 13 [2020-08-21 21:29:30,861 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-21 21:29:30,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2020-08-21 21:29:30,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2020-08-21 21:29:30,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-08-21 21:29:30,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2020-08-21 21:29:30,901 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 11 [2020-08-21 21:29:30,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 21:29:30,902 INFO L479 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2020-08-21 21:29:30,902 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-21 21:29:30,902 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2020-08-21 21:29:30,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-08-21 21:29:30,903 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 21:29:30,903 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 21:29:30,904 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 21:29:30,904 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 21:29:30,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 21:29:30,905 INFO L82 PathProgramCache]: Analyzing trace with hash -281053369, now seen corresponding path program 1 times [2020-08-21 21:29:30,905 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 21:29:30,905 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1967943045] [2020-08-21 21:29:30,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 21:29:30,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:29:31,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 21:29:31,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:29:31,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 21:29:31,042 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1967943045] [2020-08-21 21:29:31,042 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 21:29:31,042 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-21 21:29:31,043 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331936713] [2020-08-21 21:29:31,047 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-21 21:29:31,047 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 21:29:31,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-21 21:29:31,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-21 21:29:31,048 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 4 states. [2020-08-21 21:29:31,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 21:29:31,183 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2020-08-21 21:29:31,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-21 21:29:31,184 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-08-21 21:29:31,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 21:29:31,185 INFO L225 Difference]: With dead ends: 20 [2020-08-21 21:29:31,185 INFO L226 Difference]: Without dead ends: 15 [2020-08-21 21:29:31,187 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-21 21:29:31,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-08-21 21:29:31,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-08-21 21:29:31,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-08-21 21:29:31,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2020-08-21 21:29:31,200 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 12 [2020-08-21 21:29:31,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 21:29:31,200 INFO L479 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2020-08-21 21:29:31,200 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-21 21:29:31,201 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2020-08-21 21:29:31,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-08-21 21:29:31,202 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 21:29:31,203 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 21:29:31,203 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-21 21:29:31,203 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 21:29:31,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 21:29:31,204 INFO L82 PathProgramCache]: Analyzing trace with hash 1999502604, now seen corresponding path program 1 times [2020-08-21 21:29:31,205 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 21:29:31,206 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1519162888] [2020-08-21 21:29:31,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 21:29:31,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:29:31,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 21:29:31,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:29:31,395 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 21:29:31,396 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1519162888] [2020-08-21 21:29:31,396 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 21:29:31,396 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-21 21:29:31,397 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251487587] [2020-08-21 21:29:31,397 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-21 21:29:31,398 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 21:29:31,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-21 21:29:31,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-21 21:29:31,399 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 5 states. [2020-08-21 21:29:31,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 21:29:31,480 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2020-08-21 21:29:31,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-21 21:29:31,481 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-08-21 21:29:31,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 21:29:31,481 INFO L225 Difference]: With dead ends: 15 [2020-08-21 21:29:31,481 INFO L226 Difference]: Without dead ends: 0 [2020-08-21 21:29:31,482 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-08-21 21:29:31,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-21 21:29:31,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-21 21:29:31,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-21 21:29:31,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-21 21:29:31,484 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-08-21 21:29:31,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 21:29:31,484 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-21 21:29:31,484 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-21 21:29:31,484 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-21 21:29:31,484 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-21 21:29:31,485 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-21 21:29:31,487 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-21 21:29:31,604 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-21 21:29:31,605 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~j~0 |old(~j~0)|) (= |~#x~0.offset| |old(~#x~0.offset)|) (= |~#y~0.offset| |old(~#y~0.offset)|) (= ~i~0 |old(~i~0)|) (= |old(#length)| |#length|) (= ~k~0 |old(~k~0)|) (= |#memory_int| |old(#memory_int)|) (= |#NULL.base| |old(#NULL.base)|) (= |~#x~0.base| |old(~#x~0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|) (= |~#y~0.base| |old(~#y~0.base)|)) [2020-08-21 21:29:31,605 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-21 21:29:31,605 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-21 21:29:31,606 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= (select |#memory_int| |~#x~0.base|) ((as const (Array Int Int)) 0)) (<= ~i~0 0)) [2020-08-21 21:29:31,606 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-21 21:29:31,606 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-21 21:29:31,606 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 8 23) no Hoare annotation was computed. [2020-08-21 21:29:31,606 INFO L268 CegarLoopResult]: For program point L19(lines 19 20) no Hoare annotation was computed. [2020-08-21 21:29:31,606 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 8 23) no Hoare annotation was computed. [2020-08-21 21:29:31,607 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 20) no Hoare annotation was computed. [2020-08-21 21:29:31,607 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 8 23) the Hoare annotation is: (or (not (= ((as const (Array Int Int)) 0) (select |old(#memory_int)| |~#x~0.base|))) (not (<= |old(~i~0)| 0)) (and (= ~i~0 |old(~i~0)|) (= ~k~0 |old(~k~0)|) (= |#memory_int| |old(#memory_int)|))) [2020-08-21 21:29:31,607 INFO L268 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed. [2020-08-21 21:29:31,607 INFO L268 CegarLoopResult]: For program point L18(lines 18 20) no Hoare annotation was computed. [2020-08-21 21:29:31,607 INFO L268 CegarLoopResult]: For program point L18-1(lines 18 20) no Hoare annotation was computed. [2020-08-21 21:29:31,608 INFO L268 CegarLoopResult]: For program point L12-1(lines 12 15) no Hoare annotation was computed. [2020-08-21 21:29:31,608 INFO L264 CegarLoopResult]: At program point L12-3(lines 12 15) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (or (and (= (select |#memory_int| |~#x~0.base|) .cse0) (<= ~i~0 0)) (not (= .cse0 (select |old(#memory_int)| |~#x~0.base|))) (not (<= |old(~i~0)| 0)))) [2020-08-21 21:29:31,608 INFO L268 CegarLoopResult]: For program point L12-4(lines 12 15) no Hoare annotation was computed. [2020-08-21 21:29:31,617 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalArgumentException: unknown symbol (const Int (Array Int Int)) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:238) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:394) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:89) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportResult(TraceAbstractionStarter.java:693) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:260) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:217) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-08-21 21:29:31,622 INFO L168 Benchmark]: Toolchain (without parser) took 2022.16 ms. Allocated memory was 142.6 MB in the beginning and 232.3 MB in the end (delta: 89.7 MB). Free memory was 106.3 MB in the beginning and 182.8 MB in the end (delta: -76.4 MB). Peak memory consumption was 13.2 MB. Max. memory is 7.1 GB. [2020-08-21 21:29:31,623 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 142.6 MB. Free memory was 124.1 MB in the beginning and 123.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-21 21:29:31,624 INFO L168 Benchmark]: CACSL2BoogieTranslator took 281.79 ms. Allocated memory is still 142.6 MB. Free memory was 105.9 MB in the beginning and 96.0 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2020-08-21 21:29:31,625 INFO L168 Benchmark]: Boogie Preprocessor took 140.42 ms. Allocated memory was 142.6 MB in the beginning and 203.9 MB in the end (delta: 61.3 MB). Free memory was 96.0 MB in the beginning and 182.0 MB in the end (delta: -86.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB. [2020-08-21 21:29:31,626 INFO L168 Benchmark]: RCFGBuilder took 303.60 ms. Allocated memory is still 203.9 MB. Free memory was 182.0 MB in the beginning and 167.6 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 7.1 GB. [2020-08-21 21:29:31,627 INFO L168 Benchmark]: TraceAbstraction took 1291.01 ms. Allocated memory was 203.9 MB in the beginning and 232.3 MB in the end (delta: 28.3 MB). Free memory was 166.9 MB in the beginning and 182.8 MB in the end (delta: -15.8 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. [2020-08-21 21:29:31,631 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 142.6 MB. Free memory was 124.1 MB in the beginning and 123.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 281.79 ms. Allocated memory is still 142.6 MB. Free memory was 105.9 MB in the beginning and 96.0 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 140.42 ms. Allocated memory was 142.6 MB in the beginning and 203.9 MB in the end (delta: 61.3 MB). Free memory was 96.0 MB in the beginning and 182.0 MB in the end (delta: -86.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 303.60 ms. Allocated memory is still 203.9 MB. Free memory was 182.0 MB in the beginning and 167.6 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1291.01 ms. Allocated memory was 203.9 MB in the beginning and 232.3 MB in the end (delta: 28.3 MB). Free memory was 166.9 MB in the beginning and 182.8 MB in the end (delta: -15.8 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 20]: 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 - ExceptionOrErrorResult: IllegalArgumentException: unknown symbol (const Int (Array Int Int)) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalArgumentException: unknown symbol (const Int (Array Int Int)): de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:238) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...