/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=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/oomInt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-21 19:46:11,269 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 19:46:11,273 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 19:46:11,314 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-21 19:46:11,314 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-21 19:46:11,315 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-21 19:46:11,320 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-21 19:46:11,322 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-21 19:46:11,324 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-21 19:46:11,325 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-21 19:46:11,326 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-21 19:46:11,327 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-21 19:46:11,327 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 19:46:11,328 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 19:46:11,329 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 19:46:11,331 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 19:46:11,332 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 19:46:11,333 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 19:46:11,334 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 19:46:11,336 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 19:46:11,338 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 19:46:11,339 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 19:46:11,341 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 19:46:11,342 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 19:46:11,344 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-21 19:46:11,352 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 19:46:11,353 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 19:46:11,353 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 19:46:11,354 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 19:46:11,376 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 19:46:11,377 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 19:46:11,378 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 19:46:11,378 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 19:46:11,378 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 19:46:11,379 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 19:46:11,379 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-21 19:46:11,379 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 19:46:11,379 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-21 19:46:11,379 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 19:46:11,380 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 19:46:11,380 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 19:46:11,380 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 19:46:11,380 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-21 19:46:11,380 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 19:46:11,381 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 19:46:11,381 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 19:46:11,381 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 19:46:11,381 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 19:46:11,382 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 19:46:11,382 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 19:46:11,382 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 19:46:11,382 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 19:46:11,382 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 19:46:11,383 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 19:46:11,383 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 19:46:11,383 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 19:46:11,383 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 19:46:11,383 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 19:46:11,384 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=SHALLOWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; [2020-08-21 19:46:11,665 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 19:46:11,678 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 19:46:11,681 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 19:46:11,683 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 19:46:11,683 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 19:46:11,684 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/oomInt.i [2020-08-21 19:46:11,747 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cc87ee1ca/c791fbf06109498a93fe12203ce5b482/FLAG636cf7296 [2020-08-21 19:46:12,187 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 19:46:12,187 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/oomInt.i [2020-08-21 19:46:12,198 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cc87ee1ca/c791fbf06109498a93fe12203ce5b482/FLAG636cf7296 [2020-08-21 19:46:12,610 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cc87ee1ca/c791fbf06109498a93fe12203ce5b482 [2020-08-21 19:46:12,619 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 19:46:12,621 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 19:46:12,622 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 19:46:12,622 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 19:46:12,626 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 19:46:12,628 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 07:46:12" (1/1) ... [2020-08-21 19:46:12,631 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b40a8fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:46:12, skipping insertion in model container [2020-08-21 19:46:12,632 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 07:46:12" (1/1) ... [2020-08-21 19:46:12,641 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 19:46:12,661 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 19:46:12,853 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 19:46:12,860 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 19:46:12,882 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 19:46:12,900 INFO L208 MainTranslator]: Completed translation [2020-08-21 19:46:12,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:46:12 WrapperNode [2020-08-21 19:46:12,901 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 19:46:12,902 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 19:46:12,902 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 19:46:12,903 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 19:46:12,923 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:46:12" (1/1) ... [2020-08-21 19:46:12,923 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:46:12" (1/1) ... [2020-08-21 19:46:13,042 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:46:12" (1/1) ... [2020-08-21 19:46:13,043 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:46:12" (1/1) ... [2020-08-21 19:46:13,047 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:46:12" (1/1) ... [2020-08-21 19:46:13,050 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:46:12" (1/1) ... [2020-08-21 19:46:13,051 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:46:12" (1/1) ... [2020-08-21 19:46:13,052 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 19:46:13,053 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 19:46:13,053 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 19:46:13,053 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 19:46:13,054 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:46:12" (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 19:46:13,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 19:46:13,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 19:46:13,127 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-08-21 19:46:13,127 INFO L138 BoogieDeclarations]: Found implementation of procedure abs_int [2020-08-21 19:46:13,127 INFO L138 BoogieDeclarations]: Found implementation of procedure firstFunction [2020-08-21 19:46:13,127 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 19:46:13,128 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 19:46:13,128 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-08-21 19:46:13,128 INFO L130 BoogieDeclarations]: Found specification of procedure abs_int [2020-08-21 19:46:13,128 INFO L130 BoogieDeclarations]: Found specification of procedure firstFunction [2020-08-21 19:46:13,128 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 19:46:13,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 19:46:13,129 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 19:46:13,347 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 19:46:13,347 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-21 19:46:13,355 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 07:46:13 BoogieIcfgContainer [2020-08-21 19:46:13,355 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 19:46:13,360 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 19:46:13,360 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 19:46:13,370 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 19:46:13,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 07:46:12" (1/3) ... [2020-08-21 19:46:13,372 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19c82063 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 07:46:13, skipping insertion in model container [2020-08-21 19:46:13,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:46:12" (2/3) ... [2020-08-21 19:46:13,376 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19c82063 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 07:46:13, skipping insertion in model container [2020-08-21 19:46:13,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 07:46:13" (3/3) ... [2020-08-21 19:46:13,378 INFO L109 eAbstractionObserver]: Analyzing ICFG oomInt.i [2020-08-21 19:46:13,405 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 19:46:13,420 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-21 19:46:13,435 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-21 19:46:13,458 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 19:46:13,458 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 19:46:13,459 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 19:46:13,459 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 19:46:13,459 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 19:46:13,459 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 19:46:13,459 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 19:46:13,459 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 19:46:13,478 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2020-08-21 19:46:13,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-08-21 19:46:13,484 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 19:46:13,485 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 19:46:13,486 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 19:46:13,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 19:46:13,492 INFO L82 PathProgramCache]: Analyzing trace with hash -1310527286, now seen corresponding path program 1 times [2020-08-21 19:46:13,501 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 19:46:13,502 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [906610921] [2020-08-21 19:46:13,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 19:46:13,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:46:13,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 19:46:13,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:46:13,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 19:46:13,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:46:13,895 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 19:46:13,896 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [906610921] [2020-08-21 19:46:13,898 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 19:46:13,898 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-21 19:46:13,899 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574049268] [2020-08-21 19:46:13,905 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-21 19:46:13,905 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 19:46:13,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-21 19:46:13,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-08-21 19:46:13,923 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 9 states. [2020-08-21 19:46:14,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 19:46:14,158 INFO L93 Difference]: Finished difference Result 33 states and 33 transitions. [2020-08-21 19:46:14,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-21 19:46:14,161 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 16 [2020-08-21 19:46:14,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 19:46:14,171 INFO L225 Difference]: With dead ends: 33 [2020-08-21 19:46:14,172 INFO L226 Difference]: Without dead ends: 0 [2020-08-21 19:46:14,177 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2020-08-21 19:46:14,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-21 19:46:14,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-21 19:46:14,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-21 19:46:14,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-21 19:46:14,214 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-08-21 19:46:14,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 19:46:14,215 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-21 19:46:14,215 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-21 19:46:14,216 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-21 19:46:14,216 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-21 19:46:14,217 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 19:46:14,219 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-21 19:46:14,260 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-21 19:46:14,261 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (= ~p~0 |old(~p~0)|) [2020-08-21 19:46:14,261 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-21 19:46:14,261 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-21 19:46:14,261 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-08-21 19:46:14,262 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-21 19:46:14,262 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-21 19:46:14,262 INFO L268 CegarLoopResult]: For program point abs_intEXIT(lines 16 25) no Hoare annotation was computed. [2020-08-21 19:46:14,262 INFO L271 CegarLoopResult]: At program point abs_intENTRY(lines 16 25) the Hoare annotation is: true [2020-08-21 19:46:14,263 INFO L268 CegarLoopResult]: For program point L18(lines 18 24) no Hoare annotation was computed. [2020-08-21 19:46:14,263 INFO L268 CegarLoopResult]: For program point abs_intFINAL(lines 16 25) no Hoare annotation was computed. [2020-08-21 19:46:14,263 INFO L264 CegarLoopResult]: At program point L30(line 30) the Hoare annotation is: (<= 1 ~p~0) [2020-08-21 19:46:14,263 INFO L268 CegarLoopResult]: For program point L29(line 29) no Hoare annotation was computed. [2020-08-21 19:46:14,263 INFO L264 CegarLoopResult]: At program point firstFunctionENTRY(lines 27 31) the Hoare annotation is: (= ~p~0 |old(~p~0)|) [2020-08-21 19:46:14,264 INFO L268 CegarLoopResult]: For program point firstFunctionFINAL(lines 27 31) no Hoare annotation was computed. [2020-08-21 19:46:14,264 INFO L268 CegarLoopResult]: For program point firstFunctionEXIT(lines 27 31) no Hoare annotation was computed. [2020-08-21 19:46:14,264 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 33 36) the Hoare annotation is: (= ~p~0 |old(~p~0)|) [2020-08-21 19:46:14,264 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 33 36) no Hoare annotation was computed. [2020-08-21 19:46:14,264 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 33 36) no Hoare annotation was computed. [2020-08-21 19:46:14,264 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 6 12) the Hoare annotation is: true [2020-08-21 19:46:14,265 INFO L268 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2020-08-21 19:46:14,265 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 6 12) no Hoare annotation was computed. [2020-08-21 19:46:14,265 INFO L268 CegarLoopResult]: For program point L8(lines 8 11) no Hoare annotation was computed. [2020-08-21 19:46:14,265 INFO L268 CegarLoopResult]: For program point L8-2(lines 6 12) no Hoare annotation was computed. [2020-08-21 19:46:14,265 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2020-08-21 19:46:14,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 07:46:14 BoogieIcfgContainer [2020-08-21 19:46:14,272 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-21 19:46:14,280 INFO L168 Benchmark]: Toolchain (without parser) took 1653.62 ms. Allocated memory was 140.0 MB in the beginning and 205.0 MB in the end (delta: 65.0 MB). Free memory was 103.3 MB in the beginning and 119.5 MB in the end (delta: -16.2 MB). Peak memory consumption was 48.8 MB. Max. memory is 7.1 GB. [2020-08-21 19:46:14,281 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-21 19:46:14,285 INFO L168 Benchmark]: CACSL2BoogieTranslator took 280.01 ms. Allocated memory is still 140.0 MB. Free memory was 103.1 MB in the beginning and 93.7 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2020-08-21 19:46:14,287 INFO L168 Benchmark]: Boogie Preprocessor took 150.28 ms. Allocated memory was 140.0 MB in the beginning and 205.0 MB in the end (delta: 65.0 MB). Free memory was 93.7 MB in the beginning and 183.8 MB in the end (delta: -90.1 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. [2020-08-21 19:46:14,288 INFO L168 Benchmark]: RCFGBuilder took 304.98 ms. Allocated memory is still 205.0 MB. Free memory was 183.8 MB in the beginning and 171.8 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 7.1 GB. [2020-08-21 19:46:14,289 INFO L168 Benchmark]: TraceAbstraction took 912.58 ms. Allocated memory is still 205.0 MB. Free memory was 171.2 MB in the beginning and 119.5 MB in the end (delta: 51.7 MB). Peak memory consumption was 51.7 MB. Max. memory is 7.1 GB. [2020-08-21 19:46:14,303 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 280.01 ms. Allocated memory is still 140.0 MB. Free memory was 103.1 MB in the beginning and 93.7 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 150.28 ms. Allocated memory was 140.0 MB in the beginning and 205.0 MB in the end (delta: 65.0 MB). Free memory was 93.7 MB in the beginning and 183.8 MB in the end (delta: -90.1 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 304.98 ms. Allocated memory is still 205.0 MB. Free memory was 183.8 MB in the beginning and 171.8 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 912.58 ms. Allocated memory is still 205.0 MB. Free memory was 171.2 MB in the beginning and 119.5 MB in the end (delta: 51.7 MB). Peak memory consumption was 51.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 10]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 16 SDtfs, 24 SDslu, 71 SDs, 0 SdLazy, 58 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 8 NumberOfFragments, 16 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 20 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 795 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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...