/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 -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/ldv-regression/test14.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 16:40:23,941 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 16:40:23,945 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 16:40:23,970 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-09-04 16:40:23,980 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 16:40:23,981 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 16:40:23,982 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 16:40:23,983 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 16:40:23,984 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 16:40:23,985 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 16:40:23,988 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 16:40:23,990 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 16:40:23,992 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 16:40:23,993 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 16:40:23,995 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 16:40:23,995 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 16:40:23,998 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-04 16:40:24,007 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 16:40:24,008 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 16:40:24,009 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 16:40:24,010 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-09-04 16:40:24,021 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 16:40:24,022 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 16:40:24,023 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 16:40:24,023 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 16:40:24,023 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 16:40:24,024 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 16:40:24,024 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 16:40:24,024 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 16:40:24,024 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 16:40:24,025 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 16:40:24,025 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 16:40:24,025 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 16:40:24,025 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 16:40:24,025 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 16:40:24,026 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 16:40:24,026 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 16:40:24,026 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 16:40:24,026 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 16:40:24,026 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 16:40:24,027 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 16:40:24,027 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 16:40:24,027 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 16:40:24,027 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-09-04 16:40:24,479 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 16:40:24,497 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 16:40:24,501 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 16:40:24,503 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 16:40:24,504 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 16:40:24,505 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test14.c [2020-09-04 16:40:24,608 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/92ac48ca4/68b403f7555340a092cfc2bd4d176649/FLAG271d54d5d [2020-09-04 16:40:25,134 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 16:40:25,136 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/test14.c [2020-09-04 16:40:25,145 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/92ac48ca4/68b403f7555340a092cfc2bd4d176649/FLAG271d54d5d [2020-09-04 16:40:25,463 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/92ac48ca4/68b403f7555340a092cfc2bd4d176649 [2020-09-04 16:40:25,479 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 16:40:25,482 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 16:40:25,484 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 16:40:25,485 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 16:40:25,489 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 16:40:25,490 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 04:40:25" (1/1) ... [2020-09-04 16:40:25,495 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37bbc69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:40:25, skipping insertion in model container [2020-09-04 16:40:25,495 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 04:40:25" (1/1) ... [2020-09-04 16:40:25,505 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 16:40:25,535 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 16:40:25,762 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 16:40:25,777 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 16:40:25,796 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 16:40:25,814 INFO L208 MainTranslator]: Completed translation [2020-09-04 16:40:25,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:40:25 WrapperNode [2020-09-04 16:40:25,814 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 16:40:25,815 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 16:40:25,815 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 16:40:25,815 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 16:40:25,828 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:40:25" (1/1) ... [2020-09-04 16:40:25,829 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:40:25" (1/1) ... [2020-09-04 16:40:25,921 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:40:25" (1/1) ... [2020-09-04 16:40:25,921 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:40:25" (1/1) ... [2020-09-04 16:40:25,928 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:40:25" (1/1) ... [2020-09-04 16:40:25,931 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:40:25" (1/1) ... [2020-09-04 16:40:25,933 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:40:25" (1/1) ... [2020-09-04 16:40:25,935 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 16:40:25,935 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 16:40:25,935 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 16:40:25,936 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 16:40:25,937 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:40:25" (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 [2020-09-04 16:40:26,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 16:40:26,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 16:40:26,013 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dummy [2020-09-04 16:40:26,014 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 16:40:26,014 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 16:40:26,014 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 16:40:26,014 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-09-04 16:40:26,015 INFO L130 BoogieDeclarations]: Found specification of procedure get_dummy [2020-09-04 16:40:26,015 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 16:40:26,015 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-04 16:40:26,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-04 16:40:26,015 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-04 16:40:26,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-04 16:40:26,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 16:40:26,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 16:40:26,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-04 16:40:26,296 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 16:40:26,296 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-04 16:40:26,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 04:40:26 BoogieIcfgContainer [2020-09-04 16:40:26,303 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 16:40:26,305 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 16:40:26,305 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 16:40:26,309 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 16:40:26,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 04:40:25" (1/3) ... [2020-09-04 16:40:26,310 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b41db3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 04:40:26, skipping insertion in model container [2020-09-04 16:40:26,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:40:25" (2/3) ... [2020-09-04 16:40:26,311 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b41db3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 04:40:26, skipping insertion in model container [2020-09-04 16:40:26,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 04:40:26" (3/3) ... [2020-09-04 16:40:26,313 INFO L109 eAbstractionObserver]: Analyzing ICFG test14.c [2020-09-04 16:40:26,327 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 16:40:26,339 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 16:40:26,365 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 16:40:26,399 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 16:40:26,399 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 16:40:26,399 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-09-04 16:40:26,399 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 16:40:26,400 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 16:40:26,400 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 16:40:26,400 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 16:40:26,400 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 16:40:26,422 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states. [2020-09-04 16:40:26,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-09-04 16:40:26,437 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:40:26,438 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:40:26,439 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:40:26,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:40:26,450 INFO L82 PathProgramCache]: Analyzing trace with hash 465652526, now seen corresponding path program 1 times [2020-09-04 16:40:26,463 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:40:26,463 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [884759851] [2020-09-04 16:40:26,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:40:26,545 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:40:26,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:40:26,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:40:26,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:40:26,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-09-04 16:40:26,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:40:26,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:40:26,899 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [884759851] [2020-09-04 16:40:26,901 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:40:26,901 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-04 16:40:26,902 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63245275] [2020-09-04 16:40:26,908 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-04 16:40:26,909 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:40:26,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-04 16:40:26,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-04 16:40:26,930 INFO L87 Difference]: Start difference. First operand 65 states. Second operand 6 states. [2020-09-04 16:40:27,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:40:27,180 INFO L93 Difference]: Finished difference Result 83 states and 86 transitions. [2020-09-04 16:40:27,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-04 16:40:27,182 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 43 [2020-09-04 16:40:27,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:40:27,196 INFO L225 Difference]: With dead ends: 83 [2020-09-04 16:40:27,196 INFO L226 Difference]: Without dead ends: 51 [2020-09-04 16:40:27,201 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-04 16:40:27,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-09-04 16:40:27,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2020-09-04 16:40:27,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-09-04 16:40:27,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 52 transitions. [2020-09-04 16:40:27,261 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 52 transitions. Word has length 43 [2020-09-04 16:40:27,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:40:27,262 INFO L479 AbstractCegarLoop]: Abstraction has 51 states and 52 transitions. [2020-09-04 16:40:27,262 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-04 16:40:27,262 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 52 transitions. [2020-09-04 16:40:27,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-09-04 16:40:27,264 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:40:27,264 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:40:27,265 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 16:40:27,265 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:40:27,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:40:27,266 INFO L82 PathProgramCache]: Analyzing trace with hash -1782210472, now seen corresponding path program 1 times [2020-09-04 16:40:27,266 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:40:27,267 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [541387159] [2020-09-04 16:40:27,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:40:27,269 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:40:27,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:40:27,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:40:27,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:40:27,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-09-04 16:40:27,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:40:27,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:40:27,402 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [541387159] [2020-09-04 16:40:27,402 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:40:27,403 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-04 16:40:27,403 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112122184] [2020-09-04 16:40:27,404 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-04 16:40:27,404 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:40:27,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-04 16:40:27,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-04 16:40:27,405 INFO L87 Difference]: Start difference. First operand 51 states and 52 transitions. Second operand 5 states. [2020-09-04 16:40:27,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:40:27,557 INFO L93 Difference]: Finished difference Result 59 states and 59 transitions. [2020-09-04 16:40:27,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-04 16:40:27,558 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 46 [2020-09-04 16:40:27,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:40:27,559 INFO L225 Difference]: With dead ends: 59 [2020-09-04 16:40:27,560 INFO L226 Difference]: Without dead ends: 51 [2020-09-04 16:40:27,561 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-04 16:40:27,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-09-04 16:40:27,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2020-09-04 16:40:27,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-09-04 16:40:27,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 51 transitions. [2020-09-04 16:40:27,575 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 51 transitions. Word has length 46 [2020-09-04 16:40:27,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:40:27,576 INFO L479 AbstractCegarLoop]: Abstraction has 51 states and 51 transitions. [2020-09-04 16:40:27,576 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-04 16:40:27,576 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 51 transitions. [2020-09-04 16:40:27,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-09-04 16:40:27,578 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:40:27,578 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:40:27,578 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 16:40:27,578 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:40:27,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:40:27,579 INFO L82 PathProgramCache]: Analyzing trace with hash 1590234488, now seen corresponding path program 1 times [2020-09-04 16:40:27,579 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:40:27,580 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1103904513] [2020-09-04 16:40:27,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:40:27,581 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:40:27,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:40:27,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:40:27,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:40:27,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-09-04 16:40:27,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:40:27,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:40:27,736 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1103904513] [2020-09-04 16:40:27,736 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:40:27,736 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-04 16:40:27,736 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542482919] [2020-09-04 16:40:27,737 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-04 16:40:27,737 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:40:27,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-04 16:40:27,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-04 16:40:27,738 INFO L87 Difference]: Start difference. First operand 51 states and 51 transitions. Second operand 8 states. [2020-09-04 16:40:27,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:40:27,923 INFO L93 Difference]: Finished difference Result 51 states and 51 transitions. [2020-09-04 16:40:27,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-04 16:40:27,924 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 49 [2020-09-04 16:40:27,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:40:27,925 INFO L225 Difference]: With dead ends: 51 [2020-09-04 16:40:27,925 INFO L226 Difference]: Without dead ends: 0 [2020-09-04 16:40:27,926 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-09-04 16:40:27,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-04 16:40:27,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-04 16:40:27,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-04 16:40:27,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-04 16:40:27,927 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 49 [2020-09-04 16:40:27,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:40:27,927 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-04 16:40:27,928 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-04 16:40:27,928 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-04 16:40:27,928 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-04 16:40:27,928 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-04 16:40:27,931 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-04 16:40:28,401 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-04 16:40:28,401 INFO L271 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-09-04 16:40:28,401 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line 5) the Hoare annotation is: true [2020-09-04 16:40:28,402 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |~#b~0.offset| |old(~#b~0.offset)|) (= |old(#length)| |#length|) (= |~#a~0.offset| |old(~#a~0.offset)|) (= |~#b~0.base| |old(~#b~0.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |~#a~0.base| |old(~#a~0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-09-04 16:40:28,402 INFO L271 CegarLoopResult]: At program point L5(line 5) the Hoare annotation is: true [2020-09-04 16:40:28,402 INFO L271 CegarLoopResult]: At program point L5-1(line 5) the Hoare annotation is: true [2020-09-04 16:40:28,402 INFO L271 CegarLoopResult]: At program point L5-2(line 5) the Hoare annotation is: true [2020-09-04 16:40:28,403 INFO L271 CegarLoopResult]: At program point L5-3(line 5) the Hoare annotation is: true [2020-09-04 16:40:28,403 INFO L271 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-09-04 16:40:28,403 INFO L271 CegarLoopResult]: At program point get_dummyFINAL(lines 7 10) the Hoare annotation is: true [2020-09-04 16:40:28,403 INFO L271 CegarLoopResult]: At program point L9(line 9) the Hoare annotation is: true [2020-09-04 16:40:28,403 INFO L271 CegarLoopResult]: At program point get_dummyENTRY(lines 7 10) the Hoare annotation is: true [2020-09-04 16:40:28,404 INFO L271 CegarLoopResult]: At program point L9-2(line 9) the Hoare annotation is: true [2020-09-04 16:40:28,404 INFO L271 CegarLoopResult]: At program point L9-3(line 9) the Hoare annotation is: true [2020-09-04 16:40:28,404 INFO L271 CegarLoopResult]: At program point L9-4(line 9) the Hoare annotation is: true [2020-09-04 16:40:28,404 INFO L271 CegarLoopResult]: At program point L9-5(line 9) the Hoare annotation is: true [2020-09-04 16:40:28,404 INFO L271 CegarLoopResult]: At program point get_dummyEXIT(lines 7 10) the Hoare annotation is: true [2020-09-04 16:40:28,404 INFO L271 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-09-04 16:40:28,405 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-04 16:40:28,405 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-04 16:40:28,405 INFO L271 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-09-04 16:40:28,405 INFO L264 CegarLoopResult]: At program point mainEXIT(lines 12 27) the Hoare annotation is: (not (= main_~pc~0.base 0)) [2020-09-04 16:40:28,406 INFO L264 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (not (= |main_~#c~0.base| 0))) [2020-09-04 16:40:28,406 INFO L264 CegarLoopResult]: At program point L19(line 19) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (not |main_#t~short8|) (not (= |main_~#c~0.base| 0)) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset)) [2020-09-04 16:40:28,406 INFO L264 CegarLoopResult]: At program point L19-1(line 19) the Hoare annotation is: (and |main_#t~short7| (not (= main_~pc~0.base 0)) (not |main_#t~short8|) (not (= |main_~#c~0.base| 0)) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset)) [2020-09-04 16:40:28,406 INFO L264 CegarLoopResult]: At program point L19-2(line 19) the Hoare annotation is: (and |main_#t~short7| (not (= main_~pc~0.base 0)) (not |main_#t~short8|) (not (= |main_~#c~0.base| 0)) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset)) [2020-09-04 16:40:28,407 INFO L264 CegarLoopResult]: At program point L19-3(line 19) the Hoare annotation is: (and |main_#t~short7| (not (= main_~pc~0.base 0)) (not |main_#t~short8|) (not (= |main_~#c~0.base| 0)) (= (select (select |#memory_int| main_~pb~0.base) main_~pb~0.offset) |main_#t~mem5|) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset)) [2020-09-04 16:40:28,407 INFO L264 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: (not (= |main_~#c~0.base| 0)) [2020-09-04 16:40:28,408 INFO L264 CegarLoopResult]: At program point L19-4(line 19) the Hoare annotation is: (and |main_#t~short7| (not (= main_~pc~0.base 0)) (not |main_#t~short8|) (not (= |main_~#c~0.base| 0)) (= (select (select |#memory_int| main_~pb~0.base) main_~pb~0.offset) |main_#t~mem5|) (= |main_#t~mem6| |main_#t~mem5|) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset)) [2020-09-04 16:40:28,408 INFO L264 CegarLoopResult]: At program point L15-1(line 15) the Hoare annotation is: (not (= |main_~#c~0.base| 0)) [2020-09-04 16:40:28,409 INFO L264 CegarLoopResult]: At program point L15-2(line 15) the Hoare annotation is: (not (= |main_~#c~0.base| 0)) [2020-09-04 16:40:28,409 INFO L264 CegarLoopResult]: At program point L19-6(line 19) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (not |main_#t~short8|) (not (= |main_~#c~0.base| 0)) (not |main_#t~short7|) (= (select (select |#memory_int| main_~pb~0.base) main_~pb~0.offset) |main_#t~mem5|) (= |main_#t~mem6| |main_#t~mem5|) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset)) [2020-09-04 16:40:28,410 INFO L264 CegarLoopResult]: At program point L19-7(line 19) the Hoare annotation is: false [2020-09-04 16:40:28,410 INFO L264 CegarLoopResult]: At program point L19-8(line 19) the Hoare annotation is: false [2020-09-04 16:40:28,410 INFO L264 CegarLoopResult]: At program point L19-9(line 19) the Hoare annotation is: false [2020-09-04 16:40:28,411 INFO L264 CegarLoopResult]: At program point L19-10(line 19) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (not |main_#t~short8|) (not (= |main_~#c~0.base| 0))) [2020-09-04 16:40:28,411 INFO L264 CegarLoopResult]: At program point L19-11(line 19) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (not (= |main_~#c~0.base| 0))) [2020-09-04 16:40:28,411 INFO L264 CegarLoopResult]: At program point L19-12(line 19) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (not (= |main_~#c~0.base| 0))) [2020-09-04 16:40:28,412 INFO L264 CegarLoopResult]: At program point L20(lines 12 27) the Hoare annotation is: false [2020-09-04 16:40:28,412 INFO L264 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: (not (= |main_~#c~0.base| 0)) [2020-09-04 16:40:28,412 INFO L264 CegarLoopResult]: At program point L16-1(line 16) the Hoare annotation is: (not (= |main_~#c~0.base| 0)) [2020-09-04 16:40:28,413 INFO L264 CegarLoopResult]: At program point L16-2(line 16) the Hoare annotation is: (not (= |main_~#c~0.base| 0)) [2020-09-04 16:40:28,413 INFO L264 CegarLoopResult]: At program point L17(line 17) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (not (= |main_~#c~0.base| 0))) [2020-09-04 16:40:28,413 INFO L264 CegarLoopResult]: At program point L17-1(line 17) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (not (= |main_~#c~0.base| 0))) [2020-09-04 16:40:28,413 INFO L264 CegarLoopResult]: At program point L17-2(line 17) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (not (= |main_~#c~0.base| 0))) [2020-09-04 16:40:28,414 INFO L264 CegarLoopResult]: At program point L17-3(line 17) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (not (= |main_~#c~0.base| 0)) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset)) [2020-09-04 16:40:28,414 INFO L264 CegarLoopResult]: At program point L13(line 13) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2020-09-04 16:40:28,414 INFO L264 CegarLoopResult]: At program point mainFINAL(lines 12 27) the Hoare annotation is: (not (= main_~pc~0.base 0)) [2020-09-04 16:40:28,414 INFO L264 CegarLoopResult]: At program point L13-1(line 13) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2020-09-04 16:40:28,415 INFO L264 CegarLoopResult]: At program point L13-2(line 13) the Hoare annotation is: (not (= |main_~#c~0.base| 0)) [2020-09-04 16:40:28,415 INFO L264 CegarLoopResult]: At program point L13-3(line 13) the Hoare annotation is: (not (= |main_~#c~0.base| 0)) [2020-09-04 16:40:28,415 INFO L264 CegarLoopResult]: At program point L13-4(line 13) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (not (= |main_~#c~0.base| 0))) [2020-09-04 16:40:28,415 INFO L264 CegarLoopResult]: At program point L13-5(line 13) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (not (= |main_~#c~0.base| 0))) [2020-09-04 16:40:28,415 INFO L264 CegarLoopResult]: At program point L13-6(line 13) the Hoare annotation is: false [2020-09-04 16:40:28,416 INFO L264 CegarLoopResult]: At program point L13-7(line 13) the Hoare annotation is: false [2020-09-04 16:40:28,416 INFO L264 CegarLoopResult]: At program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 25) the Hoare annotation is: false [2020-09-04 16:40:28,416 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 12 27) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2020-09-04 16:40:28,416 INFO L264 CegarLoopResult]: At program point L26(line 26) the Hoare annotation is: false [2020-09-04 16:40:28,417 INFO L264 CegarLoopResult]: At program point L18(lines 18 19) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (not (= |main_~#c~0.base| 0)) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset)) [2020-09-04 16:40:28,417 INFO L264 CegarLoopResult]: At program point L18-1(lines 18 19) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (not |main_#t~short8|) (not (= |main_~#c~0.base| 0)) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset)) [2020-09-04 16:40:28,417 INFO L264 CegarLoopResult]: At program point L18-3(lines 18 21) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (not |main_#t~short8|) (not (= |main_~#c~0.base| 0)) (not |main_#t~short7|) (= (select (select |#memory_int| main_~pb~0.base) main_~pb~0.offset) |main_#t~mem5|) (= |main_#t~mem6| |main_#t~mem5|) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset)) [2020-09-04 16:40:28,417 INFO L264 CegarLoopResult]: At program point L14(line 14) the Hoare annotation is: (not (= |main_~#c~0.base| 0)) [2020-09-04 16:40:28,418 INFO L264 CegarLoopResult]: At program point L18-4(lines 18 19) the Hoare annotation is: false [2020-09-04 16:40:28,418 INFO L264 CegarLoopResult]: At program point L14-1(line 14) the Hoare annotation is: (not (= |main_~#c~0.base| 0)) [2020-09-04 16:40:28,418 INFO L264 CegarLoopResult]: At program point L18-5(lines 18 19) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (not |main_#t~short8|) (not (= |main_~#c~0.base| 0))) [2020-09-04 16:40:28,441 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 04:40:28 BoogieIcfgContainer [2020-09-04 16:40:28,441 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 16:40:28,445 INFO L168 Benchmark]: Toolchain (without parser) took 2961.65 ms. Allocated memory was 144.7 MB in the beginning and 232.8 MB in the end (delta: 88.1 MB). Free memory was 101.6 MB in the beginning and 85.8 MB in the end (delta: 15.8 MB). Peak memory consumption was 103.9 MB. Max. memory is 7.1 GB. [2020-09-04 16:40:28,446 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 144.7 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-04 16:40:28,447 INFO L168 Benchmark]: CACSL2BoogieTranslator took 330.47 ms. Allocated memory is still 144.7 MB. Free memory was 101.4 MB in the beginning and 91.6 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2020-09-04 16:40:28,448 INFO L168 Benchmark]: Boogie Preprocessor took 119.89 ms. Allocated memory was 144.7 MB in the beginning and 201.3 MB in the end (delta: 56.6 MB). Free memory was 91.4 MB in the beginning and 179.3 MB in the end (delta: -87.8 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2020-09-04 16:40:28,449 INFO L168 Benchmark]: RCFGBuilder took 368.76 ms. Allocated memory is still 201.3 MB. Free memory was 179.3 MB in the beginning and 160.1 MB in the end (delta: 19.1 MB). Peak memory consumption was 19.1 MB. Max. memory is 7.1 GB. [2020-09-04 16:40:28,450 INFO L168 Benchmark]: TraceAbstraction took 2136.19 ms. Allocated memory was 201.3 MB in the beginning and 232.8 MB in the end (delta: 31.5 MB). Free memory was 160.1 MB in the beginning and 85.8 MB in the end (delta: 74.4 MB). Peak memory consumption was 105.8 MB. Max. memory is 7.1 GB. [2020-09-04 16:40:28,454 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 144.7 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 330.47 ms. Allocated memory is still 144.7 MB. Free memory was 101.4 MB in the beginning and 91.6 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 119.89 ms. Allocated memory was 144.7 MB in the beginning and 201.3 MB in the end (delta: 56.6 MB). Free memory was 91.4 MB in the beginning and 179.3 MB in the end (delta: -87.8 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 368.76 ms. Allocated memory is still 201.3 MB. Free memory was 179.3 MB in the beginning and 160.1 MB in the end (delta: 19.1 MB). Peak memory consumption was 19.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2136.19 ms. Allocated memory was 201.3 MB in the beginning and 232.8 MB in the end (delta: 31.5 MB). Free memory was 160.1 MB in the beginning and 85.8 MB in the end (delta: 74.4 MB). Peak memory consumption was 105.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 25]: 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: 12]: Loop Invariant Derived loop invariant: 0 - ProcedureContractResult [Line: 7]: Procedure Contract for get_dummy Derived contract for procedure get_dummy: 1 - ProcedureContractResult [Line: 12]: Procedure Contract for main Derived contract for procedure main: !(pc == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 65 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.5s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 136 SDtfs, 114 SDslu, 264 SDs, 0 SdLazy, 273 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=65occurred 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, 65 LocationsWithAnnotation, 65 PreInvPairs, 78 NumberOfFragments, 428 HoareAnnotationTreeSize, 65 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 65 FomulaSimplificationsInter, 246 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...