/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 false -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/oomInt.c_1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-18 15:29:17,691 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-08-18 15:29:17,734 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-18 15:29:17,745 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-18 15:29:17,747 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-18 15:29:17,750 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-18 15:29:17,753 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-18 15:29:17,756 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-18 15:29:17,757 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-18 15:29:17,758 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-18 15:29:17,759 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 15:29:17,762 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 15:29:17,764 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 15:29:17,766 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 15:29:17,767 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 15:29:17,768 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 15:29:17,770 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 15:29:17,777 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 15:29:17,779 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 15:29:17,779 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 15:29:17,781 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 15:29:17,781 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 15:29:17,786 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-18 15:29:17,792 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 15:29:17,793 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 15:29:17,794 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 15:29:17,795 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 [2020-08-18 15:29:17,816 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 15:29:17,816 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 15:29:17,817 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 15:29:17,817 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 15:29:17,818 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 15:29:17,818 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 15:29:17,818 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-18 15:29:17,818 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 15:29:17,819 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-18 15:29:17,819 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 15:29:17,819 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 15:29:17,819 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 15:29:17,819 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 15:29:17,820 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-18 15:29:17,820 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 15:29:17,820 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 15:29:17,820 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 15:29:17,820 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 15:29:17,821 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 15:29:17,821 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 15:29:17,821 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 15:29:17,821 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 15:29:17,821 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 15:29:17,822 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 15:29:17,822 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 15:29:17,822 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 15:29:17,822 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 15:29:17,822 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 15:29:17,823 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 15:29:17,823 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 -> false [2020-08-18 15:29:18,112 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 15:29:18,122 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 15:29:18,127 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 15:29:18,130 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 15:29:18,130 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 15:29:18,131 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/oomInt.c_1.i [2020-08-18 15:29:18,193 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3fc95ec98/08cc7849ab9445b6abd9b182e0b0ead7/FLAGb07d4ff27 [2020-08-18 15:29:18,651 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 15:29:18,652 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/oomInt.c_1.i [2020-08-18 15:29:18,661 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3fc95ec98/08cc7849ab9445b6abd9b182e0b0ead7/FLAGb07d4ff27 [2020-08-18 15:29:19,058 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3fc95ec98/08cc7849ab9445b6abd9b182e0b0ead7 [2020-08-18 15:29:19,066 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 15:29:19,068 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 15:29:19,069 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 15:29:19,069 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 15:29:19,072 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 15:29:19,073 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 03:29:19" (1/1) ... [2020-08-18 15:29:19,075 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3aeb555f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:29:19, skipping insertion in model container [2020-08-18 15:29:19,076 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 03:29:19" (1/1) ... [2020-08-18 15:29:19,084 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 15:29:19,099 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 15:29:19,258 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 15:29:19,263 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 15:29:19,275 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 15:29:19,287 INFO L208 MainTranslator]: Completed translation [2020-08-18 15:29:19,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:29:19 WrapperNode [2020-08-18 15:29:19,288 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 15:29:19,288 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 15:29:19,289 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 15:29:19,289 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 15:29:19,299 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:29:19" (1/1) ... [2020-08-18 15:29:19,299 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:29:19" (1/1) ... [2020-08-18 15:29:19,304 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:29:19" (1/1) ... [2020-08-18 15:29:19,304 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:29:19" (1/1) ... [2020-08-18 15:29:19,307 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:29:19" (1/1) ... [2020-08-18 15:29:19,381 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:29:19" (1/1) ... [2020-08-18 15:29:19,382 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:29:19" (1/1) ... [2020-08-18 15:29:19,384 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 15:29:19,384 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 15:29:19,384 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 15:29:19,384 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 15:29:19,385 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:29:19" (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 [2020-08-18 15:29:19,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 15:29:19,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 15:29:19,443 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-08-18 15:29:19,443 INFO L138 BoogieDeclarations]: Found implementation of procedure abs_int [2020-08-18 15:29:19,443 INFO L138 BoogieDeclarations]: Found implementation of procedure firstFunction [2020-08-18 15:29:19,443 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 15:29:19,443 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 15:29:19,444 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-08-18 15:29:19,444 INFO L130 BoogieDeclarations]: Found specification of procedure abs_int [2020-08-18 15:29:19,444 INFO L130 BoogieDeclarations]: Found specification of procedure firstFunction [2020-08-18 15:29:19,444 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 15:29:19,444 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 15:29:19,444 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 15:29:19,606 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 15:29:19,606 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-18 15:29:19,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 03:29:19 BoogieIcfgContainer [2020-08-18 15:29:19,610 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 15:29:19,611 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 15:29:19,611 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 15:29:19,614 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 15:29:19,615 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 03:29:19" (1/3) ... [2020-08-18 15:29:19,616 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63faa12f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 03:29:19, skipping insertion in model container [2020-08-18 15:29:19,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:29:19" (2/3) ... [2020-08-18 15:29:19,616 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63faa12f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 03:29:19, skipping insertion in model container [2020-08-18 15:29:19,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 03:29:19" (3/3) ... [2020-08-18 15:29:19,618 INFO L109 eAbstractionObserver]: Analyzing ICFG oomInt.c_1.i [2020-08-18 15:29:19,627 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 15:29:19,633 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 15:29:19,645 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 15:29:19,669 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 15:29:19,669 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 15:29:19,669 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 15:29:19,669 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 15:29:19,669 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 15:29:19,669 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 15:29:19,669 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 15:29:19,669 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 15:29:19,686 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2020-08-18 15:29:19,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-08-18 15:29:19,693 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 15:29:19,694 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 15:29:19,694 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 15:29:19,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 15:29:19,701 INFO L82 PathProgramCache]: Analyzing trace with hash 2008850771, now seen corresponding path program 1 times [2020-08-18 15:29:19,710 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 15:29:19,710 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [423606925] [2020-08-18 15:29:19,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 15:29:19,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:29:19,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 15:29:19,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:29:19,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 15:29:19,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:29:20,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 15:29:20,045 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [423606925] [2020-08-18 15:29:20,047 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 15:29:20,047 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-18 15:29:20,048 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964053302] [2020-08-18 15:29:20,053 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-18 15:29:20,054 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 15:29:20,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-18 15:29:20,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-08-18 15:29:20,071 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 7 states. [2020-08-18 15:29:20,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 15:29:20,224 INFO L93 Difference]: Finished difference Result 30 states and 30 transitions. [2020-08-18 15:29:20,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-18 15:29:20,226 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2020-08-18 15:29:20,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 15:29:20,234 INFO L225 Difference]: With dead ends: 30 [2020-08-18 15:29:20,234 INFO L226 Difference]: Without dead ends: 0 [2020-08-18 15:29:20,238 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-08-18 15:29:20,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-18 15:29:20,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-18 15:29:20,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-18 15:29:20,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-18 15:29:20,267 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-08-18 15:29:20,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 15:29:20,268 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-18 15:29:20,268 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-18 15:29:20,268 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-18 15:29:20,268 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-18 15:29:20,269 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 15:29:20,271 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-18 15:29:20,303 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-18 15:29:20,303 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (= ~p~0 |old(~p~0)|) [2020-08-18 15:29:20,303 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-18 15:29:20,304 INFO L268 CegarLoopResult]: For program point __blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 7) no Hoare annotation was computed. [2020-08-18 15:29:20,304 INFO L268 CegarLoopResult]: For program point __blast_assertEXIT(lines 5 8) no Hoare annotation was computed. [2020-08-18 15:29:20,304 INFO L268 CegarLoopResult]: For program point __blast_assertFINAL(lines 5 8) no Hoare annotation was computed. [2020-08-18 15:29:20,304 INFO L271 CegarLoopResult]: At program point __blast_assertENTRY(lines 5 8) the Hoare annotation is: true [2020-08-18 15:29:20,305 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-18 15:29:20,305 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-08-18 15:29:20,305 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-18 15:29:20,305 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-18 15:29:20,306 INFO L268 CegarLoopResult]: For program point L17(lines 17 23) no Hoare annotation was computed. [2020-08-18 15:29:20,306 INFO L268 CegarLoopResult]: For program point abs_intEXIT(lines 15 24) no Hoare annotation was computed. [2020-08-18 15:29:20,306 INFO L271 CegarLoopResult]: At program point abs_intENTRY(lines 15 24) the Hoare annotation is: true [2020-08-18 15:29:20,306 INFO L268 CegarLoopResult]: For program point abs_intFINAL(lines 15 24) no Hoare annotation was computed. [2020-08-18 15:29:20,306 INFO L268 CegarLoopResult]: For program point L29(line 29) no Hoare annotation was computed. [2020-08-18 15:29:20,307 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-08-18 15:29:20,307 INFO L264 CegarLoopResult]: At program point firstFunctionENTRY(lines 26 30) the Hoare annotation is: (= ~p~0 |old(~p~0)|) [2020-08-18 15:29:20,307 INFO L264 CegarLoopResult]: At program point L29-2(line 29) the Hoare annotation is: false [2020-08-18 15:29:20,307 INFO L268 CegarLoopResult]: For program point L29-3(lines 26 30) no Hoare annotation was computed. [2020-08-18 15:29:20,307 INFO L268 CegarLoopResult]: For program point firstFunctionEXIT(lines 26 30) no Hoare annotation was computed. [2020-08-18 15:29:20,308 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 32 35) the Hoare annotation is: (= ~p~0 |old(~p~0)|) [2020-08-18 15:29:20,308 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 32 35) no Hoare annotation was computed. [2020-08-18 15:29:20,308 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 32 35) no Hoare annotation was computed. [2020-08-18 15:29:20,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.08 03:29:20 BoogieIcfgContainer [2020-08-18 15:29:20,315 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-18 15:29:20,318 INFO L168 Benchmark]: Toolchain (without parser) took 1249.10 ms. Allocated memory was 138.9 MB in the beginning and 201.9 MB in the end (delta: 62.9 MB). Free memory was 101.5 MB in the beginning and 128.6 MB in the end (delta: -27.2 MB). Peak memory consumption was 35.7 MB. Max. memory is 7.1 GB. [2020-08-18 15:29:20,319 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 138.9 MB. Free memory was 119.2 MB in the beginning and 118.8 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-08-18 15:29:20,320 INFO L168 Benchmark]: CACSL2BoogieTranslator took 219.65 ms. Allocated memory is still 138.9 MB. Free memory was 101.1 MB in the beginning and 91.9 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. [2020-08-18 15:29:20,321 INFO L168 Benchmark]: Boogie Preprocessor took 95.30 ms. Allocated memory was 138.9 MB in the beginning and 201.9 MB in the end (delta: 62.9 MB). Free memory was 91.9 MB in the beginning and 181.5 MB in the end (delta: -89.5 MB). Peak memory consumption was 13.4 MB. Max. memory is 7.1 GB. [2020-08-18 15:29:20,323 INFO L168 Benchmark]: RCFGBuilder took 225.76 ms. Allocated memory is still 201.9 MB. Free memory was 181.5 MB in the beginning and 168.6 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. [2020-08-18 15:29:20,323 INFO L168 Benchmark]: TraceAbstraction took 703.78 ms. Allocated memory is still 201.9 MB. Free memory was 168.6 MB in the beginning and 128.6 MB in the end (delta: 40.0 MB). Peak memory consumption was 40.0 MB. Max. memory is 7.1 GB. [2020-08-18 15:29:20,328 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 138.9 MB. Free memory was 119.2 MB in the beginning and 118.8 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 219.65 ms. Allocated memory is still 138.9 MB. Free memory was 101.1 MB in the beginning and 91.9 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 95.30 ms. Allocated memory was 138.9 MB in the beginning and 201.9 MB in the end (delta: 62.9 MB). Free memory was 91.9 MB in the beginning and 181.5 MB in the end (delta: -89.5 MB). Peak memory consumption was 13.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 225.76 ms. Allocated memory is still 201.9 MB. Free memory was 181.5 MB in the beginning and 168.6 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 703.78 ms. Allocated memory is still 201.9 MB. Free memory was 168.6 MB in the beginning and 128.6 MB in the end (delta: 40.0 MB). Peak memory consumption was 40.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 7]: 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, 24 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 14 SDtfs, 13 SDslu, 43 SDs, 0 SdLazy, 33 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred 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, 14 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 2 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 644 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...