/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=5 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/test05.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-19 00:21:12,976 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-19 00:21:12,979 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-19 00:21:13,019 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-19 00:21:13,019 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-19 00:21:13,028 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-19 00:21:13,030 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-19 00:21:13,034 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-19 00:21:13,036 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-19 00:21:13,039 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-19 00:21:13,040 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-19 00:21:13,041 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-19 00:21:13,042 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-19 00:21:13,044 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-19 00:21:13,047 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-19 00:21:13,048 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-19 00:21:13,050 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-19 00:21:13,051 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-19 00:21:13,052 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-19 00:21:13,060 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-19 00:21:13,062 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-19 00:21:13,063 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-19 00:21:13,064 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-19 00:21:13,065 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-19 00:21:13,077 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-19 00:21:13,095 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-19 00:21:13,096 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-19 00:21:13,097 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-19 00:21:13,098 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 [2020-08-19 00:21:13,136 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-19 00:21:13,136 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-19 00:21:13,138 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-19 00:21:13,138 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-19 00:21:13,138 INFO L138 SettingsManager]: * Use SBE=true [2020-08-19 00:21:13,138 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-19 00:21:13,139 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-19 00:21:13,139 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-19 00:21:13,139 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-19 00:21:13,139 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-19 00:21:13,140 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-19 00:21:13,141 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-19 00:21:13,141 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-19 00:21:13,141 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-19 00:21:13,141 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-19 00:21:13,141 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-19 00:21:13,142 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-19 00:21:13,142 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-19 00:21:13,142 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-19 00:21:13,142 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-19 00:21:13,142 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-19 00:21:13,143 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-19 00:21:13,143 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-19 00:21:13,143 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-19 00:21:13,143 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-19 00:21:13,143 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-19 00:21:13,144 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-19 00:21:13,144 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-19 00:21:13,144 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-19 00:21:13,144 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=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4; [2020-08-19 00:21:13,451 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-19 00:21:13,472 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-19 00:21:13,475 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-19 00:21:13,477 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-19 00:21:13,478 INFO L275 PluginConnector]: CDTParser initialized [2020-08-19 00:21:13,479 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test05.c [2020-08-19 00:21:13,559 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/861940ce8/23473daef9e84bc592f677a2f56d8a4a/FLAGa069f3d48 [2020-08-19 00:21:14,012 INFO L306 CDTParser]: Found 1 translation units. [2020-08-19 00:21:14,013 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/test05.c [2020-08-19 00:21:14,019 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/861940ce8/23473daef9e84bc592f677a2f56d8a4a/FLAGa069f3d48 [2020-08-19 00:21:14,427 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/861940ce8/23473daef9e84bc592f677a2f56d8a4a [2020-08-19 00:21:14,436 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-19 00:21:14,438 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-19 00:21:14,439 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-19 00:21:14,439 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-19 00:21:14,443 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-19 00:21:14,444 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 12:21:14" (1/1) ... [2020-08-19 00:21:14,447 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d6e6de4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:21:14, skipping insertion in model container [2020-08-19 00:21:14,447 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 12:21:14" (1/1) ... [2020-08-19 00:21:14,455 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-19 00:21:14,471 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-19 00:21:14,656 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 00:21:14,669 INFO L203 MainTranslator]: Completed pre-run [2020-08-19 00:21:14,689 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 00:21:14,706 INFO L208 MainTranslator]: Completed translation [2020-08-19 00:21:14,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:21:14 WrapperNode [2020-08-19 00:21:14,706 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-19 00:21:14,707 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-19 00:21:14,707 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-19 00:21:14,708 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-19 00:21:14,827 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:21:14" (1/1) ... [2020-08-19 00:21:14,827 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:21:14" (1/1) ... [2020-08-19 00:21:14,836 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:21:14" (1/1) ... [2020-08-19 00:21:14,836 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:21:14" (1/1) ... [2020-08-19 00:21:14,844 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:21:14" (1/1) ... [2020-08-19 00:21:14,846 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:21:14" (1/1) ... [2020-08-19 00:21:14,848 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:21:14" (1/1) ... [2020-08-19 00:21:14,850 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-19 00:21:14,851 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-19 00:21:14,851 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-19 00:21:14,851 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-19 00:21:14,852 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:21:14" (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 [2020-08-19 00:21:14,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-19 00:21:14,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-19 00:21:14,925 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2020-08-19 00:21:14,925 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2020-08-19 00:21:14,926 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-19 00:21:14,926 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-19 00:21:14,926 INFO L130 BoogieDeclarations]: Found specification of procedure g [2020-08-19 00:21:14,926 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-19 00:21:14,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-19 00:21:14,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-19 00:21:14,927 INFO L130 BoogieDeclarations]: Found specification of procedure f [2020-08-19 00:21:14,927 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-19 00:21:14,927 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-19 00:21:14,927 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-19 00:21:14,927 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-19 00:21:14,927 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-19 00:21:14,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-19 00:21:15,253 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-19 00:21:15,256 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-19 00:21:15,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 12:21:15 BoogieIcfgContainer [2020-08-19 00:21:15,266 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-19 00:21:15,267 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-19 00:21:15,271 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-19 00:21:15,278 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-19 00:21:15,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.08 12:21:14" (1/3) ... [2020-08-19 00:21:15,282 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b038064 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 12:21:15, skipping insertion in model container [2020-08-19 00:21:15,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:21:14" (2/3) ... [2020-08-19 00:21:15,283 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b038064 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 12:21:15, skipping insertion in model container [2020-08-19 00:21:15,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 12:21:15" (3/3) ... [2020-08-19 00:21:15,287 INFO L109 eAbstractionObserver]: Analyzing ICFG test05.c [2020-08-19 00:21:15,306 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-19 00:21:15,314 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-19 00:21:15,337 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-19 00:21:15,360 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-19 00:21:15,360 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-19 00:21:15,360 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-19 00:21:15,360 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-19 00:21:15,361 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-19 00:21:15,361 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-19 00:21:15,361 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-19 00:21:15,361 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-19 00:21:15,380 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2020-08-19 00:21:15,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-08-19 00:21:15,386 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 00:21:15,387 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 00:21:15,388 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 00:21:15,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 00:21:15,394 INFO L82 PathProgramCache]: Analyzing trace with hash -685779266, now seen corresponding path program 1 times [2020-08-19 00:21:15,402 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 00:21:15,402 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [461526210] [2020-08-19 00:21:15,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 00:21:15,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:21:15,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 00:21:15,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:21:15,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 00:21:15,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:21:15,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 00:21:15,725 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [461526210] [2020-08-19 00:21:15,727 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 00:21:15,727 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-19 00:21:15,728 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902337499] [2020-08-19 00:21:15,733 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-19 00:21:15,734 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 00:21:15,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-19 00:21:15,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-08-19 00:21:15,752 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 7 states. [2020-08-19 00:21:16,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 00:21:16,069 INFO L93 Difference]: Finished difference Result 36 states and 39 transitions. [2020-08-19 00:21:16,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-19 00:21:16,071 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2020-08-19 00:21:16,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 00:21:16,079 INFO L225 Difference]: With dead ends: 36 [2020-08-19 00:21:16,080 INFO L226 Difference]: Without dead ends: 21 [2020-08-19 00:21:16,083 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-08-19 00:21:16,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-08-19 00:21:16,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-08-19 00:21:16,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-08-19 00:21:16,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2020-08-19 00:21:16,118 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 14 [2020-08-19 00:21:16,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 00:21:16,118 INFO L479 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2020-08-19 00:21:16,118 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-19 00:21:16,118 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2020-08-19 00:21:16,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-08-19 00:21:16,119 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 00:21:16,119 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 00:21:16,120 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-19 00:21:16,120 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 00:21:16,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 00:21:16,121 INFO L82 PathProgramCache]: Analyzing trace with hash 636648720, now seen corresponding path program 1 times [2020-08-19 00:21:16,121 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 00:21:16,121 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1097664526] [2020-08-19 00:21:16,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 00:21:16,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:21:16,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 00:21:16,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:21:16,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 00:21:16,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:21:16,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 00:21:16,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:21:16,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 00:21:16,294 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1097664526] [2020-08-19 00:21:16,294 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 00:21:16,295 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-19 00:21:16,295 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420330284] [2020-08-19 00:21:16,297 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-19 00:21:16,297 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 00:21:16,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-19 00:21:16,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-08-19 00:21:16,298 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand 7 states. [2020-08-19 00:21:16,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 00:21:16,482 INFO L93 Difference]: Finished difference Result 23 states and 22 transitions. [2020-08-19 00:21:16,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-19 00:21:16,483 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-08-19 00:21:16,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 00:21:16,484 INFO L225 Difference]: With dead ends: 23 [2020-08-19 00:21:16,484 INFO L226 Difference]: Without dead ends: 21 [2020-08-19 00:21:16,486 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-08-19 00:21:16,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-08-19 00:21:16,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-08-19 00:21:16,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-08-19 00:21:16,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 20 transitions. [2020-08-19 00:21:16,492 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 20 transitions. Word has length 19 [2020-08-19 00:21:16,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 00:21:16,492 INFO L479 AbstractCegarLoop]: Abstraction has 21 states and 20 transitions. [2020-08-19 00:21:16,493 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-19 00:21:16,493 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 20 transitions. [2020-08-19 00:21:16,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-08-19 00:21:16,494 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 00:21:16,494 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 00:21:16,494 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-19 00:21:16,494 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 00:21:16,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 00:21:16,495 INFO L82 PathProgramCache]: Analyzing trace with hash -1738724303, now seen corresponding path program 1 times [2020-08-19 00:21:16,495 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 00:21:16,495 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1169162762] [2020-08-19 00:21:16,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 00:21:16,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:21:16,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 00:21:16,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:21:16,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 00:21:16,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:21:16,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 00:21:16,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:21:16,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 00:21:16,868 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1169162762] [2020-08-19 00:21:16,868 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 00:21:16,868 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-08-19 00:21:16,869 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40470124] [2020-08-19 00:21:16,869 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-19 00:21:16,870 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 00:21:16,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-19 00:21:16,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2020-08-19 00:21:16,871 INFO L87 Difference]: Start difference. First operand 21 states and 20 transitions. Second operand 11 states. [2020-08-19 00:21:17,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 00:21:17,210 INFO L93 Difference]: Finished difference Result 21 states and 20 transitions. [2020-08-19 00:21:17,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-19 00:21:17,210 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 20 [2020-08-19 00:21:17,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 00:21:17,211 INFO L225 Difference]: With dead ends: 21 [2020-08-19 00:21:17,211 INFO L226 Difference]: Without dead ends: 0 [2020-08-19 00:21:17,212 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2020-08-19 00:21:17,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-19 00:21:17,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-19 00:21:17,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-19 00:21:17,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-19 00:21:17,213 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2020-08-19 00:21:17,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 00:21:17,214 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-19 00:21:17,214 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-19 00:21:17,214 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-19 00:21:17,214 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-19 00:21:17,215 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-19 00:21:17,217 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-19 00:21:17,358 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-19 00:21:17,359 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(#NULL.base)| |#NULL.base|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-08-19 00:21:17,359 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-19 00:21:17,360 INFO L264 CegarLoopResult]: At program point L13(line 13) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |f_#in~a| f_~a) (= |#memory_int| |old(#memory_int)|) (= |f_#in~p2.base| f_~p2.base) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= f_~p1.offset |f_#in~p1.offset|) (= |f_#in~p1.base| f_~p1.base) (= f_~p2.offset |f_#in~p2.offset|)) [2020-08-19 00:21:17,360 INFO L268 CegarLoopResult]: For program point L12(lines 12 17) no Hoare annotation was computed. [2020-08-19 00:21:17,360 INFO L268 CegarLoopResult]: For program point L13-1(line 13) no Hoare annotation was computed. [2020-08-19 00:21:17,360 INFO L268 CegarLoopResult]: For program point fEXIT(lines 11 18) no Hoare annotation was computed. [2020-08-19 00:21:17,361 INFO L264 CegarLoopResult]: At program point fENTRY(lines 11 18) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|)) [2020-08-19 00:21:17,361 INFO L268 CegarLoopResult]: For program point fFINAL(lines 11 18) no Hoare annotation was computed. [2020-08-19 00:21:17,361 INFO L268 CegarLoopResult]: For program point gEXIT(lines 4 9) no Hoare annotation was computed. [2020-08-19 00:21:17,361 INFO L268 CegarLoopResult]: For program point gFINAL(lines 4 9) no Hoare annotation was computed. [2020-08-19 00:21:17,361 INFO L264 CegarLoopResult]: At program point gENTRY(lines 4 9) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|)) [2020-08-19 00:21:17,362 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-19 00:21:17,362 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-08-19 00:21:17,362 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-19 00:21:17,362 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-19 00:21:17,363 INFO L264 CegarLoopResult]: At program point L32(line 32) the Hoare annotation is: (let ((.cse0 (select (select |#memory_$Pointer$.base| |main_~#p2~0.base|) |main_~#p2~0.offset|))) (and (= |main_#t~mem4| 4) (not (= .cse0 |main_~#a~0.base|)) (not (= |main_~#p2~0.base| |main_~#a~0.base|)) (not (= |main_~#p1~0.base| |main_~#a~0.base|)) (not (= .cse0 |main_~#p1~0.base|)))) [2020-08-19 00:21:17,363 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 44) no Hoare annotation was computed. [2020-08-19 00:21:17,363 INFO L268 CegarLoopResult]: For program point L32-1(line 32) no Hoare annotation was computed. [2020-08-19 00:21:17,363 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 20 46) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2020-08-19 00:21:17,363 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 20 46) no Hoare annotation was computed. [2020-08-19 00:21:17,364 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 20 46) no Hoare annotation was computed. [2020-08-19 00:21:17,364 INFO L264 CegarLoopResult]: At program point L39(lines 20 46) the Hoare annotation is: false [2020-08-19 00:21:17,364 INFO L268 CegarLoopResult]: For program point L38(lines 38 40) no Hoare annotation was computed. [2020-08-19 00:21:17,364 INFO L268 CegarLoopResult]: For program point L34(lines 34 36) no Hoare annotation was computed. [2020-08-19 00:21:17,375 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.08 12:21:17 BoogieIcfgContainer [2020-08-19 00:21:17,376 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-19 00:21:17,379 INFO L168 Benchmark]: Toolchain (without parser) took 2939.61 ms. Allocated memory was 139.5 MB in the beginning and 237.0 MB in the end (delta: 97.5 MB). Free memory was 102.9 MB in the beginning and 94.8 MB in the end (delta: 8.2 MB). Peak memory consumption was 105.7 MB. Max. memory is 7.1 GB. [2020-08-19 00:21:17,380 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.6 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. [2020-08-19 00:21:17,381 INFO L168 Benchmark]: CACSL2BoogieTranslator took 267.67 ms. Allocated memory is still 139.5 MB. Free memory was 102.5 MB in the beginning and 92.3 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2020-08-19 00:21:17,382 INFO L168 Benchmark]: Boogie Preprocessor took 143.44 ms. Allocated memory was 139.5 MB in the beginning and 204.5 MB in the end (delta: 65.0 MB). Free memory was 92.3 MB in the beginning and 181.8 MB in the end (delta: -89.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. [2020-08-19 00:21:17,383 INFO L168 Benchmark]: RCFGBuilder took 415.01 ms. Allocated memory is still 204.5 MB. Free memory was 181.8 MB in the beginning and 161.8 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. [2020-08-19 00:21:17,384 INFO L168 Benchmark]: TraceAbstraction took 2108.33 ms. Allocated memory was 204.5 MB in the beginning and 237.0 MB in the end (delta: 32.5 MB). Free memory was 161.8 MB in the beginning and 94.8 MB in the end (delta: 67.0 MB). Peak memory consumption was 99.5 MB. Max. memory is 7.1 GB. [2020-08-19 00:21:17,388 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 139.5 MB. Free memory was 121.0 MB in the beginning and 120.6 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 267.67 ms. Allocated memory is still 139.5 MB. Free memory was 102.5 MB in the beginning and 92.3 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 143.44 ms. Allocated memory was 139.5 MB in the beginning and 204.5 MB in the end (delta: 65.0 MB). Free memory was 92.3 MB in the beginning and 181.8 MB in the end (delta: -89.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 415.01 ms. Allocated memory is still 204.5 MB. Free memory was 181.8 MB in the beginning and 161.8 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2108.33 ms. Allocated memory was 204.5 MB in the beginning and 237.0 MB in the end (delta: 32.5 MB). Free memory was 161.8 MB in the beginning and 94.8 MB in the end (delta: 67.0 MB). Peak memory consumption was 99.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 44]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.8s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 44 SDtfs, 34 SDslu, 88 SDs, 0 SdLazy, 237 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 46 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 9 NumberOfFragments, 99 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 42 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 50 ConstructedInterpolants, 0 QuantifiedInterpolants, 7578 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...