/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 NUM_VARIABLES --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/loop-lit/cggmp2005.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 17:55:29,714 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-07-20 17:55:29,767 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 17:55:29,770 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 17:55:29,773 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 17:55:29,776 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 17:55:29,779 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 17:55:29,781 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 17:55:29,783 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 17:55:29,790 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 17:55:29,796 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 17:55:29,801 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 17:55:29,802 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 17:55:29,803 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 17:55:29,806 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 17:55:29,818 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 17:55:29,819 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 17:55:29,821 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 17:55:29,822 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 [2020-07-20 17:55:29,863 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 17:55:29,864 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 17:55:29,865 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 17:55:29,865 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 17:55:29,866 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 17:55:29,866 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 17:55:29,866 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 17:55:29,866 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 17:55:29,867 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 17:55:29,867 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 17:55:29,867 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 17:55:29,867 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 17:55:29,867 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 17:55:29,868 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 17:55:29,868 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 17:55:29,868 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 17:55:29,868 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 17:55:29,868 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 17:55:29,869 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 17:55:29,869 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 17:55:29,869 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 17:55:29,869 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 17:55:29,870 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 17:55:29,870 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 17:55:29,870 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 17:55:29,870 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 17:55:29,870 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:55:29,871 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 17:55:29,871 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 17:55:29,871 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 -> NUM_VARIABLES 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 [2020-07-20 17:55:30,214 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 17:55:30,230 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 17:55:30,234 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 17:55:30,236 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 17:55:30,237 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 17:55:30,238 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/cggmp2005.i [2020-07-20 17:55:30,308 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cdde47968/8294ca7e46eb4565861e3fc325e62a2e/FLAG8e3c2d886 [2020-07-20 17:55:30,864 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 17:55:30,865 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/cggmp2005.i [2020-07-20 17:55:30,875 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cdde47968/8294ca7e46eb4565861e3fc325e62a2e/FLAG8e3c2d886 [2020-07-20 17:55:31,164 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cdde47968/8294ca7e46eb4565861e3fc325e62a2e [2020-07-20 17:55:31,179 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 17:55:31,183 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 17:55:31,185 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 17:55:31,186 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 17:55:31,190 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 17:55:31,192 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 05:55:31" (1/1) ... [2020-07-20 17:55:31,196 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@125c9569 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:55:31, skipping insertion in model container [2020-07-20 17:55:31,196 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 05:55:31" (1/1) ... [2020-07-20 17:55:31,210 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 17:55:31,237 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 17:55:31,454 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 17:55:31,460 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 17:55:31,479 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 17:55:31,496 INFO L208 MainTranslator]: Completed translation [2020-07-20 17:55:31,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:55:31 WrapperNode [2020-07-20 17:55:31,496 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 17:55:31,497 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 17:55:31,498 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 17:55:31,498 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 17:55:31,514 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:55:31" (1/1) ... [2020-07-20 17:55:31,514 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:55:31" (1/1) ... [2020-07-20 17:55:31,520 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:55:31" (1/1) ... [2020-07-20 17:55:31,520 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:55:31" (1/1) ... [2020-07-20 17:55:31,525 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:55:31" (1/1) ... [2020-07-20 17:55:31,531 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:55:31" (1/1) ... [2020-07-20 17:55:31,532 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:55:31" (1/1) ... [2020-07-20 17:55:31,534 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 17:55:31,535 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 17:55:31,535 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 17:55:31,535 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 17:55:31,536 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:55:31" (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 [2020-07-20 17:55:31,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 17:55:31,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 17:55:31,696 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-20 17:55:31,697 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-20 17:55:31,697 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 17:55:31,697 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 17:55:31,697 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-20 17:55:31,697 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-20 17:55:31,697 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-20 17:55:31,698 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 17:55:31,698 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 17:55:31,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 17:55:31,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 17:55:31,906 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 17:55:31,906 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 17:55:31,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 05:55:31 BoogieIcfgContainer [2020-07-20 17:55:31,910 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 17:55:31,911 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 17:55:31,912 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 17:55:31,915 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 17:55:31,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 05:55:31" (1/3) ... [2020-07-20 17:55:31,916 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a24803d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 05:55:31, skipping insertion in model container [2020-07-20 17:55:31,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:55:31" (2/3) ... [2020-07-20 17:55:31,917 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a24803d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 05:55:31, skipping insertion in model container [2020-07-20 17:55:31,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 05:55:31" (3/3) ... [2020-07-20 17:55:31,919 INFO L109 eAbstractionObserver]: Analyzing ICFG cggmp2005.i [2020-07-20 17:55:31,931 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 17:55:31,940 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 17:55:31,959 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 17:55:31,989 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 17:55:31,990 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 17:55:31,990 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 17:55:31,990 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 17:55:31,991 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 17:55:31,991 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 17:55:31,991 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 17:55:31,992 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 17:55:32,016 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2020-07-20 17:55:32,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-07-20 17:55:32,023 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:55:32,024 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:55:32,025 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:55:32,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:55:32,032 INFO L82 PathProgramCache]: Analyzing trace with hash -1782755915, now seen corresponding path program 1 times [2020-07-20 17:55:32,042 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:55:32,043 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2066876405] [2020-07-20 17:55:32,043 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 [2020-07-20 17:55:32,097 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-20 17:55:32,098 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:55:32,100 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-20 17:55:32,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:55:32,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:55:32,165 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:55:32,167 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2066876405] [2020-07-20 17:55:32,168 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:55:32,168 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:55:32,169 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313452511] [2020-07-20 17:55:32,173 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:55:32,173 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:55:32,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:55:32,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:55:32,187 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 3 states. [2020-07-20 17:55:32,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:55:32,221 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2020-07-20 17:55:32,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:55:32,222 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-07-20 17:55:32,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:55:32,230 INFO L225 Difference]: With dead ends: 31 [2020-07-20 17:55:32,230 INFO L226 Difference]: Without dead ends: 12 [2020-07-20 17:55:32,234 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:55:32,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2020-07-20 17:55:32,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2020-07-20 17:55:32,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-07-20 17:55:32,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2020-07-20 17:55:32,270 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2020-07-20 17:55:32,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:55:32,271 INFO L479 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2020-07-20 17:55:32,271 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:55:32,271 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2020-07-20 17:55:32,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-07-20 17:55:32,272 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:55:32,273 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:55:32,487 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:55:32,487 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:55:32,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:55:32,488 INFO L82 PathProgramCache]: Analyzing trace with hash 604679234, now seen corresponding path program 1 times [2020-07-20 17:55:32,488 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:55:32,488 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2044919809] [2020-07-20 17:55:32,489 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 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:55:32,513 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-20 17:55:32,513 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:55:32,516 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-20 17:55:32,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:55:32,556 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:55:32,557 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 17:55:32,614 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:55:32,615 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2044919809] [2020-07-20 17:55:32,615 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 17:55:32,615 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2020-07-20 17:55:32,616 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99972795] [2020-07-20 17:55:32,618 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 17:55:32,618 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:55:32,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 17:55:32,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-07-20 17:55:32,619 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 6 states. [2020-07-20 17:55:32,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:55:32,652 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2020-07-20 17:55:32,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 17:55:32,653 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2020-07-20 17:55:32,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:55:32,654 INFO L225 Difference]: With dead ends: 20 [2020-07-20 17:55:32,654 INFO L226 Difference]: Without dead ends: 15 [2020-07-20 17:55:32,656 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-07-20 17:55:32,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-07-20 17:55:32,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-07-20 17:55:32,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-07-20 17:55:32,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2020-07-20 17:55:32,663 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 11 [2020-07-20 17:55:32,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:55:32,663 INFO L479 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2020-07-20 17:55:32,664 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 17:55:32,664 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2020-07-20 17:55:32,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-07-20 17:55:32,665 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:55:32,665 INFO L422 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:55:32,866 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:55:32,867 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:55:32,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:55:32,869 INFO L82 PathProgramCache]: Analyzing trace with hash 1835469045, now seen corresponding path program 2 times [2020-07-20 17:55:32,869 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:55:32,870 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1618621663] [2020-07-20 17:55:32,870 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 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:55:32,902 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:55:32,903 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:55:32,904 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 14 conjunts are in the unsatisfiable core [2020-07-20 17:55:32,908 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:55:33,026 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-20 17:55:33,061 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:55:33,061 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 17:55:33,086 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 17:55:33,125 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-20 17:55:33,165 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 17:55:33,168 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 17:55:33,210 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 17:55:33,213 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 17:55:33,258 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 17:55:33,275 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:55:33,276 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1618621663] [2020-07-20 17:55:33,276 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 17:55:33,277 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 13 [2020-07-20 17:55:33,277 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628258244] [2020-07-20 17:55:33,278 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-07-20 17:55:33,278 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:55:33,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-07-20 17:55:33,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2020-07-20 17:55:33,280 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 13 states. [2020-07-20 17:55:33,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:55:33,374 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2020-07-20 17:55:33,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-20 17:55:33,375 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 14 [2020-07-20 17:55:33,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:55:33,375 INFO L225 Difference]: With dead ends: 19 [2020-07-20 17:55:33,392 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 17:55:33,395 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 13 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2020-07-20 17:55:33,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 17:55:33,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 17:55:33,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 17:55:33,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 17:55:33,397 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-07-20 17:55:33,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:55:33,397 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 17:55:33,398 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-07-20 17:55:33,398 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 17:55:33,398 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 17:55:33,608 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:55:33,612 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 17:55:33,754 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-07-20 17:55:33,754 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 17:55:33,754 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 17:55:33,754 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-20 17:55:33,755 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 17:55:33,755 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 17:55:33,755 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 3 5) no Hoare annotation was computed. [2020-07-20 17:55:33,755 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-07-20 17:55:33,755 INFO L268 CegarLoopResult]: For program point L4-2(lines 3 5) no Hoare annotation was computed. [2020-07-20 17:55:33,755 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 3 5) no Hoare annotation was computed. [2020-07-20 17:55:33,756 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 13 23) the Hoare annotation is: true [2020-07-20 17:55:33,756 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 13 23) no Hoare annotation was computed. [2020-07-20 17:55:33,756 INFO L268 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed. [2020-07-20 17:55:33,756 INFO L264 CegarLoopResult]: At program point L17-2(lines 17 20) the Hoare annotation is: (let ((.cse0 (<= 7 main_~i~0))) (or (and .cse0 (<= main_~j~0 6) (<= 6 main_~j~0)) (and (<= 9 main_~j~0) (<= main_~i~0 3) (<= 3 main_~i~0) (<= main_~j~0 9)) (and (<= main_~j~0 10) (<= 10 main_~j~0) (<= main_~i~0 1) (<= 1 main_~i~0)) (and (<= main_~j~0 8) (<= 5 main_~i~0) (< (+ main_~i~0 2) main_~j~0)) (and (<= main_~j~0 7) .cse0 (<= main_~i~0 main_~j~0)))) [2020-07-20 17:55:33,757 INFO L264 CegarLoopResult]: At program point L17-3(lines 17 20) the Hoare annotation is: (and (<= 7 main_~i~0) (<= main_~j~0 6) (<= 6 main_~j~0)) [2020-07-20 17:55:33,757 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 13 23) no Hoare annotation was computed. [2020-07-20 17:55:33,757 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 6 11) the Hoare annotation is: true [2020-07-20 17:55:33,757 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 6 11) no Hoare annotation was computed. [2020-07-20 17:55:33,757 INFO L268 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-07-20 17:55:33,758 INFO L268 CegarLoopResult]: For program point L7(lines 7 9) no Hoare annotation was computed. [2020-07-20 17:55:33,758 INFO L268 CegarLoopResult]: For program point L7-2(lines 6 11) no Hoare annotation was computed. [2020-07-20 17:55:33,758 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-07-20 17:55:33,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 05:55:33 BoogieIcfgContainer [2020-07-20 17:55:33,780 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 17:55:33,783 INFO L168 Benchmark]: Toolchain (without parser) took 2601.33 ms. Allocated memory was 145.8 MB in the beginning and 235.4 MB in the end (delta: 89.7 MB). Free memory was 104.2 MB in the beginning and 194.0 MB in the end (delta: -89.8 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-07-20 17:55:33,784 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 145.8 MB. Free memory was 121.9 MB in the beginning and 121.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-20 17:55:33,785 INFO L168 Benchmark]: CACSL2BoogieTranslator took 311.88 ms. Allocated memory is still 145.8 MB. Free memory was 104.0 MB in the beginning and 94.6 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2020-07-20 17:55:33,786 INFO L168 Benchmark]: Boogie Preprocessor took 37.00 ms. Allocated memory is still 145.8 MB. Free memory was 94.6 MB in the beginning and 93.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-07-20 17:55:33,788 INFO L168 Benchmark]: RCFGBuilder took 375.45 ms. Allocated memory was 145.8 MB in the beginning and 203.9 MB in the end (delta: 58.2 MB). Free memory was 93.0 MB in the beginning and 171.2 MB in the end (delta: -78.2 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2020-07-20 17:55:33,789 INFO L168 Benchmark]: TraceAbstraction took 1869.01 ms. Allocated memory was 203.9 MB in the beginning and 235.4 MB in the end (delta: 31.5 MB). Free memory was 170.6 MB in the beginning and 194.0 MB in the end (delta: -23.4 MB). Peak memory consumption was 8.0 MB. Max. memory is 7.1 GB. [2020-07-20 17:55:33,793 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 145.8 MB. Free memory was 121.9 MB in the beginning and 121.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 311.88 ms. Allocated memory is still 145.8 MB. Free memory was 104.0 MB in the beginning and 94.6 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 37.00 ms. Allocated memory is still 145.8 MB. Free memory was 94.6 MB in the beginning and 93.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 375.45 ms. Allocated memory was 145.8 MB in the beginning and 203.9 MB in the end (delta: 58.2 MB). Free memory was 93.0 MB in the beginning and 171.2 MB in the end (delta: -78.2 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1869.01 ms. Allocated memory was 203.9 MB in the beginning and 235.4 MB in the end (delta: 31.5 MB). Free memory was 170.6 MB in the beginning and 194.0 MB in the end (delta: -23.4 MB). Peak memory consumption was 8.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (((((7 <= i && j <= 6) && 6 <= j) || (((9 <= j && i <= 3) && 3 <= i) && j <= 9)) || (((j <= 10 && 10 <= j) && i <= 1) && 1 <= i)) || ((j <= 8 && 5 <= i) && i + 2 < j)) || ((j <= 7 && 7 <= i) && i <= j) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.6s, OverallIterations: 3, TraceHistogramMax: 4, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 33 SDtfs, 7 SDslu, 72 SDs, 0 SdLazy, 43 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 59 GetRequests, 38 SyntacticMatches, 3 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 10 PreInvPairs, 16 NumberOfFragments, 74 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 35 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 55 ConstructedInterpolants, 0 QuantifiedInterpolants, 2413 SizeOfPredicates, 6 NumberOfNonLiveVariables, 67 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 9/22 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...