/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic BIGGEST_EQUIVALENCE_CLASS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -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-d623d84 [2020-07-21 22:40:08,715 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 22:40:08,718 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 22:40:08,737 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 22:40:08,738 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 22:40:08,740 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 22:40:08,742 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 22:40:08,754 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 22:40:08,759 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 22:40:08,760 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 22:40:08,761 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 22:40:08,763 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 22:40:08,763 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 22:40:08,766 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 22:40:08,769 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 22:40:08,770 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 22:40:08,772 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 22:40:08,774 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 22:40:08,775 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 22:40:08,781 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 22:40:08,786 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 22:40:08,790 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 22:40:08,791 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 22:40:08,792 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 22:40:08,795 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 22:40:08,809 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 22:40:08,846 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 22:40:08,846 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 22:40:08,848 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 22:40:08,848 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 22:40:08,848 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 22:40:08,848 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 22:40:08,848 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 22:40:08,849 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 22:40:08,849 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 22:40:08,849 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 22:40:08,852 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 22:40:08,852 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 22:40:08,852 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 22:40:08,852 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 22:40:08,852 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 22:40:08,853 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 22:40:08,853 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 22:40:08,853 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 22:40:08,853 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 22:40:08,853 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 22:40:08,854 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 22:40:08,854 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 22:40:08,854 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 22:40:08,854 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 22:40:08,854 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 22:40:08,855 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 22:40:08,855 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:40:08,855 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 22:40:08,855 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 22:40:08,856 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 -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> BIGGEST_EQUIVALENCE_CLASS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-21 22:40:09,156 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 22:40:09,171 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 22:40:09,175 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 22:40:09,176 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 22:40:09,177 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 22:40:09,178 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/oomInt.i [2020-07-21 22:40:09,255 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc3127065/ceed5cdae4e947dcbf62e8889fc88985/FLAGb24ccc9ce [2020-07-21 22:40:09,694 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 22:40:09,695 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/oomInt.i [2020-07-21 22:40:09,703 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc3127065/ceed5cdae4e947dcbf62e8889fc88985/FLAGb24ccc9ce [2020-07-21 22:40:10,042 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc3127065/ceed5cdae4e947dcbf62e8889fc88985 [2020-07-21 22:40:10,050 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 22:40:10,053 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 22:40:10,054 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 22:40:10,054 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 22:40:10,057 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 22:40:10,058 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:40:10" (1/1) ... [2020-07-21 22:40:10,061 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f9c8426 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:40:10, skipping insertion in model container [2020-07-21 22:40:10,062 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:40:10" (1/1) ... [2020-07-21 22:40:10,070 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 22:40:10,087 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 22:40:10,254 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 22:40:10,260 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 22:40:10,276 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 22:40:10,292 INFO L208 MainTranslator]: Completed translation [2020-07-21 22:40:10,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:40:10 WrapperNode [2020-07-21 22:40:10,292 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 22:40:10,293 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 22:40:10,293 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 22:40:10,293 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 22:40:10,307 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:40:10" (1/1) ... [2020-07-21 22:40:10,308 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:40:10" (1/1) ... [2020-07-21 22:40:10,314 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:40:10" (1/1) ... [2020-07-21 22:40:10,314 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:40:10" (1/1) ... [2020-07-21 22:40:10,318 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:40:10" (1/1) ... [2020-07-21 22:40:10,320 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:40:10" (1/1) ... [2020-07-21 22:40:10,321 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:40:10" (1/1) ... [2020-07-21 22:40:10,322 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 22:40:10,322 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 22:40:10,323 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 22:40:10,323 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 22:40:10,324 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:40:10" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2020-07-21 22:40:10,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 22:40:10,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 22:40:10,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-21 22:40:10,510 INFO L138 BoogieDeclarations]: Found implementation of procedure abs_int [2020-07-21 22:40:10,510 INFO L138 BoogieDeclarations]: Found implementation of procedure firstFunction [2020-07-21 22:40:10,510 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 22:40:10,510 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 22:40:10,510 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-21 22:40:10,510 INFO L130 BoogieDeclarations]: Found specification of procedure abs_int [2020-07-21 22:40:10,511 INFO L130 BoogieDeclarations]: Found specification of procedure firstFunction [2020-07-21 22:40:10,511 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 22:40:10,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 22:40:10,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 22:40:10,703 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 22:40:10,703 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-21 22:40:10,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:40:10 BoogieIcfgContainer [2020-07-21 22:40:10,708 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 22:40:10,709 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 22:40:10,709 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 22:40:10,712 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 22:40:10,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 10:40:10" (1/3) ... [2020-07-21 22:40:10,713 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ffb791d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:40:10, skipping insertion in model container [2020-07-21 22:40:10,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:40:10" (2/3) ... [2020-07-21 22:40:10,714 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ffb791d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:40:10, skipping insertion in model container [2020-07-21 22:40:10,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:40:10" (3/3) ... [2020-07-21 22:40:10,716 INFO L109 eAbstractionObserver]: Analyzing ICFG oomInt.i [2020-07-21 22:40:10,727 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 22:40:10,734 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 22:40:10,750 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 22:40:10,774 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 22:40:10,775 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 22:40:10,775 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 22:40:10,775 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 22:40:10,775 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 22:40:10,775 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 22:40:10,775 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 22:40:10,776 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 22:40:10,795 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2020-07-21 22:40:10,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-07-21 22:40:10,802 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:40:10,803 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:40:10,803 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:40:10,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:40:10,810 INFO L82 PathProgramCache]: Analyzing trace with hash -1310527286, now seen corresponding path program 1 times [2020-07-21 22:40:10,818 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:40:10,818 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1010402237] [2020-07-21 22:40:10,819 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:40:10,894 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 22:40:10,895 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:40:10,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 22:40:10,904 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:40:11,022 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 22:40:11,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:40:11,070 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:40:11,071 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1010402237] [2020-07-21 22:40:11,071 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:40:11,072 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-21 22:40:11,073 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383643119] [2020-07-21 22:40:11,079 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 22:40:11,080 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:40:11,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 22:40:11,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-07-21 22:40:11,102 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 8 states. [2020-07-21 22:40:11,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:40:11,258 INFO L93 Difference]: Finished difference Result 33 states and 33 transitions. [2020-07-21 22:40:11,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 22:40:11,261 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 16 [2020-07-21 22:40:11,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:40:11,268 INFO L225 Difference]: With dead ends: 33 [2020-07-21 22:40:11,269 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 22:40:11,273 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-07-21 22:40:11,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 22:40:11,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 22:40:11,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 22:40:11,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 22:40:11,300 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-07-21 22:40:11,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:40:11,300 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 22:40:11,300 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 22:40:11,300 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 22:40:11,300 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 22:40:11,507 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:40:11,510 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 22:40:11,593 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 22:40:11,594 INFO L271 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2020-07-21 22:40:11,594 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 22:40:11,594 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 22:40:11,594 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-21 22:40:11,595 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 22:40:11,595 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 22:40:11,595 INFO L268 CegarLoopResult]: For program point abs_intEXIT(lines 16 25) no Hoare annotation was computed. [2020-07-21 22:40:11,595 INFO L271 CegarLoopResult]: At program point abs_intENTRY(lines 16 25) the Hoare annotation is: true [2020-07-21 22:40:11,596 INFO L268 CegarLoopResult]: For program point L18(lines 18 24) no Hoare annotation was computed. [2020-07-21 22:40:11,596 INFO L268 CegarLoopResult]: For program point abs_intFINAL(lines 16 25) no Hoare annotation was computed. [2020-07-21 22:40:11,596 INFO L264 CegarLoopResult]: At program point L30(line 30) the Hoare annotation is: (<= 3 ~p~0) [2020-07-21 22:40:11,596 INFO L268 CegarLoopResult]: For program point L29(line 29) no Hoare annotation was computed. [2020-07-21 22:40:11,597 INFO L271 CegarLoopResult]: At program point firstFunctionENTRY(lines 27 31) the Hoare annotation is: true [2020-07-21 22:40:11,597 INFO L268 CegarLoopResult]: For program point firstFunctionFINAL(lines 27 31) no Hoare annotation was computed. [2020-07-21 22:40:11,597 INFO L268 CegarLoopResult]: For program point firstFunctionEXIT(lines 27 31) no Hoare annotation was computed. [2020-07-21 22:40:11,597 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 33 36) the Hoare annotation is: true [2020-07-21 22:40:11,597 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 33 36) no Hoare annotation was computed. [2020-07-21 22:40:11,598 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 33 36) no Hoare annotation was computed. [2020-07-21 22:40:11,598 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 6 12) the Hoare annotation is: true [2020-07-21 22:40:11,598 INFO L268 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2020-07-21 22:40:11,598 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 6 12) no Hoare annotation was computed. [2020-07-21 22:40:11,599 INFO L268 CegarLoopResult]: For program point L8(lines 8 11) no Hoare annotation was computed. [2020-07-21 22:40:11,599 INFO L268 CegarLoopResult]: For program point L8-2(lines 6 12) no Hoare annotation was computed. [2020-07-21 22:40:11,600 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2020-07-21 22:40:11,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 10:40:11 BoogieIcfgContainer [2020-07-21 22:40:11,610 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 22:40:11,614 INFO L168 Benchmark]: Toolchain (without parser) took 1560.35 ms. Allocated memory was 146.8 MB in the beginning and 206.6 MB in the end (delta: 59.8 MB). Free memory was 104.7 MB in the beginning and 132.2 MB in the end (delta: -27.4 MB). Peak memory consumption was 32.3 MB. Max. memory is 7.1 GB. [2020-07-21 22:40:11,616 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 146.8 MB. Free memory was 123.0 MB in the beginning and 122.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-21 22:40:11,617 INFO L168 Benchmark]: CACSL2BoogieTranslator took 239.19 ms. Allocated memory is still 146.8 MB. Free memory was 104.5 MB in the beginning and 95.2 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2020-07-21 22:40:11,620 INFO L168 Benchmark]: Boogie Preprocessor took 29.05 ms. Allocated memory is still 146.8 MB. Free memory was 95.2 MB in the beginning and 93.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-07-21 22:40:11,622 INFO L168 Benchmark]: RCFGBuilder took 385.50 ms. Allocated memory was 146.8 MB in the beginning and 206.6 MB in the end (delta: 59.8 MB). Free memory was 93.8 MB in the beginning and 174.8 MB in the end (delta: -81.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2020-07-21 22:40:11,623 INFO L168 Benchmark]: TraceAbstraction took 901.35 ms. Allocated memory is still 206.6 MB. Free memory was 174.2 MB in the beginning and 132.2 MB in the end (delta: 42.0 MB). Peak memory consumption was 42.0 MB. Max. memory is 7.1 GB. [2020-07-21 22:40:11,634 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 146.8 MB. Free memory was 123.0 MB in the beginning and 122.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 239.19 ms. Allocated memory is still 146.8 MB. Free memory was 104.5 MB in the beginning and 95.2 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.05 ms. Allocated memory is still 146.8 MB. Free memory was 95.2 MB in the beginning and 93.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 385.50 ms. Allocated memory was 146.8 MB in the beginning and 206.6 MB in the end (delta: 59.8 MB). Free memory was 93.8 MB in the beginning and 174.8 MB in the end (delta: -81.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 901.35 ms. Allocated memory is still 206.6 MB. Free memory was 174.2 MB in the beginning and 132.2 MB in the end (delta: 42.0 MB). Peak memory consumption was 42.0 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: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 16 SDtfs, 17 SDslu, 79 SDs, 0 SdLazy, 40 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s 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, 10 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 15 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 495 SizeOfPredicates, 4 NumberOfNonLiveVariables, 46 ConjunctsInSsa, 8 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...