/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/test11.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 16:40:19,969 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 16:40:19,973 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 16:40:20,016 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-09-04 16:40:20,041 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 16:40:20,044 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 16:40:20,047 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 16:40:20,049 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 16:40:20,050 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 16:40:20,051 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 16:40:20,053 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 16:40:20,057 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 16:40:20,062 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 16:40:20,065 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 16:40:20,067 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 16:40:20,068 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 16:40:20,070 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-04 16:40:20,079 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 16:40:20,080 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 16:40:20,081 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 16:40:20,082 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 16:40:20,095 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 16:40:20,095 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 16:40:20,097 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 16:40:20,098 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 16:40:20,098 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 16:40:20,098 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 16:40:20,098 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 16:40:20,098 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 16:40:20,099 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 16:40:20,099 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 16:40:20,099 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 16:40:20,099 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 16:40:20,099 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 16:40:20,100 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 16:40:20,100 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 16:40:20,100 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 16:40:20,100 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 16:40:20,101 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 16:40:20,101 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 16:40:20,101 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 16:40:20,101 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 16:40:20,101 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 16:40:20,102 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-09-04 16:40:20,562 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 16:40:20,578 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 16:40:20,582 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 16:40:20,584 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 16:40:20,585 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 16:40:20,586 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test11.c [2020-09-04 16:40:20,680 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3f5625b20/bc0372d450654f618bfbae095c610545/FLAGd27fa063e [2020-09-04 16:40:21,232 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 16:40:21,233 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/test11.c [2020-09-04 16:40:21,242 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3f5625b20/bc0372d450654f618bfbae095c610545/FLAGd27fa063e [2020-09-04 16:40:21,561 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3f5625b20/bc0372d450654f618bfbae095c610545 [2020-09-04 16:40:21,575 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 16:40:21,577 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 16:40:21,578 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 16:40:21,579 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 16:40:21,583 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 16:40:21,584 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 04:40:21" (1/1) ... [2020-09-04 16:40:21,589 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45c3ff97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:40:21, skipping insertion in model container [2020-09-04 16:40:21,589 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 04:40:21" (1/1) ... [2020-09-04 16:40:21,598 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 16:40:21,627 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 16:40:21,835 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 16:40:21,851 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 16:40:21,875 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 16:40:21,896 INFO L208 MainTranslator]: Completed translation [2020-09-04 16:40:21,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:40:21 WrapperNode [2020-09-04 16:40:21,897 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 16:40:21,898 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 16:40:21,898 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 16:40:21,898 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 16:40:21,915 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:40:21" (1/1) ... [2020-09-04 16:40:21,915 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:40:21" (1/1) ... [2020-09-04 16:40:22,011 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:40:21" (1/1) ... [2020-09-04 16:40:22,012 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:40:21" (1/1) ... [2020-09-04 16:40:22,020 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:40:21" (1/1) ... [2020-09-04 16:40:22,026 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:40:21" (1/1) ... [2020-09-04 16:40:22,034 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:40:21" (1/1) ... [2020-09-04 16:40:22,040 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 16:40:22,042 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 16:40:22,042 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 16:40:22,042 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 16:40:22,044 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:40:21" (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 16:40:22,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 16:40:22,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 16:40:22,121 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dummy [2020-09-04 16:40:22,122 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 16:40:22,122 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 16:40:22,122 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 16:40:22,122 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-09-04 16:40:22,122 INFO L130 BoogieDeclarations]: Found specification of procedure get_dummy [2020-09-04 16:40:22,122 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 16:40:22,123 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-04 16:40:22,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-04 16:40:22,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-04 16:40:22,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-04 16:40:22,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-04 16:40:22,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 16:40:22,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 16:40:22,469 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 16:40:22,470 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-04 16:40:22,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 04:40:22 BoogieIcfgContainer [2020-09-04 16:40:22,495 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 16:40:22,497 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 16:40:22,497 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 16:40:22,503 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 16:40:22,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 04:40:21" (1/3) ... [2020-09-04 16:40:22,504 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@210bb0c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 04:40:22, skipping insertion in model container [2020-09-04 16:40:22,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:40:21" (2/3) ... [2020-09-04 16:40:22,505 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@210bb0c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 04:40:22, skipping insertion in model container [2020-09-04 16:40:22,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 04:40:22" (3/3) ... [2020-09-04 16:40:22,511 INFO L109 eAbstractionObserver]: Analyzing ICFG test11.c [2020-09-04 16:40:22,523 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 16:40:22,533 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 16:40:22,556 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 16:40:22,591 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 16:40:22,591 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 16:40:22,591 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-09-04 16:40:22,593 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 16:40:22,593 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 16:40:22,593 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 16:40:22,593 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 16:40:22,593 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 16:40:22,617 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states. [2020-09-04 16:40:22,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-09-04 16:40:22,632 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:40:22,633 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 16:40:22,633 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:40:22,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:40:22,640 INFO L82 PathProgramCache]: Analyzing trace with hash 1040052544, now seen corresponding path program 1 times [2020-09-04 16:40:22,650 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:40:22,651 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [855734285] [2020-09-04 16:40:22,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:40:22,725 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:40:22,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:40:23,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:40:23,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:40:23,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-09-04 16:40:23,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:40:23,105 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 16:40:23,109 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [855734285] [2020-09-04 16:40:23,111 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:40:23,111 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-04 16:40:23,112 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379963179] [2020-09-04 16:40:23,119 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-04 16:40:23,120 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:40:23,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-04 16:40:23,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-04 16:40:23,142 INFO L87 Difference]: Start difference. First operand 70 states. Second operand 6 states. [2020-09-04 16:40:23,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:40:23,404 INFO L93 Difference]: Finished difference Result 93 states and 98 transitions. [2020-09-04 16:40:23,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-04 16:40:23,407 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 43 [2020-09-04 16:40:23,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:40:23,421 INFO L225 Difference]: With dead ends: 93 [2020-09-04 16:40:23,421 INFO L226 Difference]: Without dead ends: 59 [2020-09-04 16:40:23,426 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 16:40:23,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-09-04 16:40:23,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2020-09-04 16:40:23,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-09-04 16:40:23,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 61 transitions. [2020-09-04 16:40:23,490 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 61 transitions. Word has length 43 [2020-09-04 16:40:23,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:40:23,490 INFO L479 AbstractCegarLoop]: Abstraction has 59 states and 61 transitions. [2020-09-04 16:40:23,491 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-04 16:40:23,491 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 61 transitions. [2020-09-04 16:40:23,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-09-04 16:40:23,493 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:40:23,493 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 16:40:23,494 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 16:40:23,494 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:40:23,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:40:23,494 INFO L82 PathProgramCache]: Analyzing trace with hash -981249608, now seen corresponding path program 1 times [2020-09-04 16:40:23,495 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:40:23,495 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1507727926] [2020-09-04 16:40:23,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:40:23,498 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:40:23,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:40:23,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:40:23,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:40:23,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-09-04 16:40:23,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:40:23,646 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 16:40:23,647 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1507727926] [2020-09-04 16:40:23,647 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:40:23,659 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-04 16:40:23,660 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938005981] [2020-09-04 16:40:23,661 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-04 16:40:23,661 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:40:23,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-04 16:40:23,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-04 16:40:23,662 INFO L87 Difference]: Start difference. First operand 59 states and 61 transitions. Second operand 5 states. [2020-09-04 16:40:23,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:40:23,839 INFO L93 Difference]: Finished difference Result 75 states and 77 transitions. [2020-09-04 16:40:23,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-04 16:40:23,840 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 46 [2020-09-04 16:40:23,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:40:23,842 INFO L225 Difference]: With dead ends: 75 [2020-09-04 16:40:23,842 INFO L226 Difference]: Without dead ends: 59 [2020-09-04 16:40:23,844 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 16:40:23,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-09-04 16:40:23,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2020-09-04 16:40:23,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-09-04 16:40:23,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 60 transitions. [2020-09-04 16:40:23,860 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 60 transitions. Word has length 46 [2020-09-04 16:40:23,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:40:23,860 INFO L479 AbstractCegarLoop]: Abstraction has 59 states and 60 transitions. [2020-09-04 16:40:23,860 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-04 16:40:23,861 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 60 transitions. [2020-09-04 16:40:23,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-09-04 16:40:23,862 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:40:23,863 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 16:40:23,863 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 16:40:23,863 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:40:23,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:40:23,864 INFO L82 PathProgramCache]: Analyzing trace with hash 176769226, now seen corresponding path program 1 times [2020-09-04 16:40:23,866 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:40:23,867 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1670683962] [2020-09-04 16:40:23,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:40:23,870 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:40:23,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:40:24,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:40:24,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:40:24,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-09-04 16:40:24,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:40:24,054 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 16:40:24,055 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1670683962] [2020-09-04 16:40:24,055 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:40:24,055 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-04 16:40:24,055 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335539300] [2020-09-04 16:40:24,056 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-04 16:40:24,056 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:40:24,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-04 16:40:24,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-04 16:40:24,057 INFO L87 Difference]: Start difference. First operand 59 states and 60 transitions. Second operand 8 states. [2020-09-04 16:40:24,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:40:24,326 INFO L93 Difference]: Finished difference Result 61 states and 61 transitions. [2020-09-04 16:40:24,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-04 16:40:24,327 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 49 [2020-09-04 16:40:24,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:40:24,328 INFO L225 Difference]: With dead ends: 61 [2020-09-04 16:40:24,329 INFO L226 Difference]: Without dead ends: 55 [2020-09-04 16:40:24,330 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-09-04 16:40:24,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-09-04 16:40:24,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2020-09-04 16:40:24,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-09-04 16:40:24,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 55 transitions. [2020-09-04 16:40:24,342 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 55 transitions. Word has length 49 [2020-09-04 16:40:24,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:40:24,343 INFO L479 AbstractCegarLoop]: Abstraction has 55 states and 55 transitions. [2020-09-04 16:40:24,343 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-04 16:40:24,343 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 55 transitions. [2020-09-04 16:40:24,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-04 16:40:24,345 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:40:24,345 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, 1, 1, 1, 1] [2020-09-04 16:40:24,345 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-04 16:40:24,345 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:40:24,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:40:24,346 INFO L82 PathProgramCache]: Analyzing trace with hash -1988535102, now seen corresponding path program 1 times [2020-09-04 16:40:24,346 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:40:24,347 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1305485626] [2020-09-04 16:40:24,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:40:24,348 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:40:24,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:40:24,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:40:24,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:40:24,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-09-04 16:40:24,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:40:24,519 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 16:40:24,520 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1305485626] [2020-09-04 16:40:24,520 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:40:24,521 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-04 16:40:24,521 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827860534] [2020-09-04 16:40:24,521 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-04 16:40:24,522 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:40:24,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-04 16:40:24,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-04 16:40:24,523 INFO L87 Difference]: Start difference. First operand 55 states and 55 transitions. Second operand 6 states. [2020-09-04 16:40:24,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:40:24,677 INFO L93 Difference]: Finished difference Result 55 states and 55 transitions. [2020-09-04 16:40:24,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-04 16:40:24,677 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 53 [2020-09-04 16:40:24,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:40:24,678 INFO L225 Difference]: With dead ends: 55 [2020-09-04 16:40:24,678 INFO L226 Difference]: Without dead ends: 0 [2020-09-04 16:40:24,680 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-04 16:40:24,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-04 16:40:24,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-04 16:40:24,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-04 16:40:24,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-04 16:40:24,681 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 53 [2020-09-04 16:40:24,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:40:24,681 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-04 16:40:24,682 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-04 16:40:24,682 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-04 16:40:24,682 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-04 16:40:24,682 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-04 16:40:24,685 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-04 16:40:25,600 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-04 16:40:25,600 INFO L271 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-09-04 16:40:25,600 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line 5) the Hoare annotation is: true [2020-09-04 16:40:25,600 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 16:40:25,601 INFO L271 CegarLoopResult]: At program point L5(line 5) the Hoare annotation is: true [2020-09-04 16:40:25,601 INFO L271 CegarLoopResult]: At program point L5-1(line 5) the Hoare annotation is: true [2020-09-04 16:40:25,601 INFO L271 CegarLoopResult]: At program point L5-2(line 5) the Hoare annotation is: true [2020-09-04 16:40:25,601 INFO L271 CegarLoopResult]: At program point L5-3(line 5) the Hoare annotation is: true [2020-09-04 16:40:25,601 INFO L271 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-09-04 16:40:25,602 INFO L271 CegarLoopResult]: At program point get_dummyFINAL(lines 7 10) the Hoare annotation is: true [2020-09-04 16:40:25,602 INFO L271 CegarLoopResult]: At program point L9(line 9) the Hoare annotation is: true [2020-09-04 16:40:25,602 INFO L271 CegarLoopResult]: At program point get_dummyENTRY(lines 7 10) the Hoare annotation is: true [2020-09-04 16:40:25,602 INFO L271 CegarLoopResult]: At program point L9-2(line 9) the Hoare annotation is: true [2020-09-04 16:40:25,602 INFO L271 CegarLoopResult]: At program point L9-3(line 9) the Hoare annotation is: true [2020-09-04 16:40:25,602 INFO L271 CegarLoopResult]: At program point L9-4(line 9) the Hoare annotation is: true [2020-09-04 16:40:25,603 INFO L271 CegarLoopResult]: At program point L9-5(line 9) the Hoare annotation is: true [2020-09-04 16:40:25,603 INFO L271 CegarLoopResult]: At program point get_dummyEXIT(lines 7 10) the Hoare annotation is: true [2020-09-04 16:40:25,603 INFO L271 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-09-04 16:40:25,603 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-04 16:40:25,603 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-04 16:40:25,603 INFO L271 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-09-04 16:40:25,604 INFO L264 CegarLoopResult]: At program point L31(line 31) the Hoare annotation is: false [2020-09-04 16:40:25,604 INFO L264 CegarLoopResult]: At program point mainEXIT(lines 12 32) the Hoare annotation is: (not (= main_~pc~0.base 0)) [2020-09-04 16:40:25,604 INFO L264 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-09-04 16:40:25,604 INFO L264 CegarLoopResult]: At program point L23-1(line 23) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= (select (select |#memory_int| |main_~#c~0.base|) |main_~#c~0.offset|) 60) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-09-04 16:40:25,605 INFO L264 CegarLoopResult]: At program point L19(line 19) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset) (not |main_#t~short9|) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-09-04 16:40:25,605 INFO L264 CegarLoopResult]: At program point L19-1(line 19) the Hoare annotation is: (and |main_#t~short8| (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset) (not |main_#t~short9|) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-09-04 16:40:25,605 INFO L264 CegarLoopResult]: At program point L19-2(line 19) the Hoare annotation is: (and |main_#t~short8| (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset) (not |main_#t~short9|) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-09-04 16:40:25,605 INFO L264 CegarLoopResult]: At program point L19-3(line 19) the Hoare annotation is: (and |main_#t~short8| (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= main_~pa~0.base main_~pb~0.base) (= (select (select |#memory_int| main_~pb~0.base) main_~pb~0.offset) |main_#t~mem6|) (= main_~pb~0.offset main_~pa~0.offset) (not |main_#t~short9|) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-09-04 16:40:25,605 INFO L264 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-09-04 16:40:25,606 INFO L264 CegarLoopResult]: At program point L19-4(line 19) the Hoare annotation is: (and |main_#t~short8| (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= |main_#t~mem7| |main_#t~mem6|) (= main_~pa~0.base main_~pb~0.base) (= (select (select |#memory_int| main_~pb~0.base) main_~pb~0.offset) |main_#t~mem6|) (= main_~pb~0.offset main_~pa~0.offset) (not |main_#t~short9|) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-09-04 16:40:25,606 INFO L264 CegarLoopResult]: At program point L15-1(line 15) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-09-04 16:40:25,606 INFO L264 CegarLoopResult]: At program point L15-2(line 15) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-09-04 16:40:25,606 INFO L264 CegarLoopResult]: At program point L19-6(line 19) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not |main_#t~short8|) (not (= |main_~#c~0.base| 0)) (= |main_#t~mem7| |main_#t~mem6|) (= main_~pa~0.base main_~pb~0.base) (= (select (select |#memory_int| main_~pb~0.base) main_~pb~0.offset) |main_#t~mem6|) (= main_~pb~0.offset main_~pa~0.offset) (not |main_#t~short9|) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-09-04 16:40:25,607 INFO L264 CegarLoopResult]: At program point L19-7(line 19) the Hoare annotation is: false [2020-09-04 16:40:25,607 INFO L264 CegarLoopResult]: At program point L19-8(line 19) the Hoare annotation is: false [2020-09-04 16:40:25,607 INFO L264 CegarLoopResult]: At program point L19-9(line 19) the Hoare annotation is: false [2020-09-04 16:40:25,607 INFO L264 CegarLoopResult]: At program point L19-10(line 19) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not |main_#t~short8|) (not (= |main_~#c~0.base| 0)) (= |main_#t~mem7| |main_#t~mem6|) (= main_~pa~0.base main_~pb~0.base) (= (select (select |#memory_int| main_~pb~0.base) main_~pb~0.offset) |main_#t~mem6|) (= main_~pb~0.offset main_~pa~0.offset) (not |main_#t~short9|) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-09-04 16:40:25,607 INFO L264 CegarLoopResult]: At program point L19-11(line 19) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not |main_#t~short8|) (not (= |main_~#c~0.base| 0)) (= main_~pa~0.base main_~pb~0.base) (= (select (select |#memory_int| main_~pb~0.base) main_~pb~0.offset) |main_#t~mem6|) (= main_~pb~0.offset main_~pa~0.offset) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-09-04 16:40:25,608 INFO L264 CegarLoopResult]: At program point L19-12(line 19) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (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) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-09-04 16:40:25,608 INFO L264 CegarLoopResult]: At program point L28(line 28) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (not (= |main_~#c~0.base| 0))) [2020-09-04 16:40:25,608 INFO L264 CegarLoopResult]: At program point L24(lines 24 26) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (= |main_#t~mem10| 60) (not (= |main_~#c~0.base| 0)) (= (select (select |#memory_int| |main_~#c~0.base|) |main_~#c~0.offset|) 60) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-09-04 16:40:25,608 INFO L264 CegarLoopResult]: At program point L24-1(line 24) the Hoare annotation is: false [2020-09-04 16:40:25,609 INFO L264 CegarLoopResult]: At program point L24-2(line 24) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (not (= |main_~#c~0.base| 0))) [2020-09-04 16:40:25,609 INFO L264 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-09-04 16:40:25,609 INFO L264 CegarLoopResult]: At program point L16-1(line 16) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-09-04 16:40:25,609 INFO L264 CegarLoopResult]: At program point L16-2(line 16) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-09-04 16:40:25,609 INFO L264 CegarLoopResult]: At program point L25(lines 12 32) the Hoare annotation is: false [2020-09-04 16:40:25,610 INFO L264 CegarLoopResult]: At program point L17(line 17) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-09-04 16:40:25,610 INFO L264 CegarLoopResult]: At program point L17-1(line 17) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-09-04 16:40:25,610 INFO L264 CegarLoopResult]: At program point L17-2(line 17) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-09-04 16:40:25,610 INFO L264 CegarLoopResult]: At program point L17-3(line 17) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-09-04 16:40:25,610 INFO L264 CegarLoopResult]: At program point L13(line 13) the Hoare annotation is: (not (= |main_~#c~0.base| 0)) [2020-09-04 16:40:25,611 INFO L264 CegarLoopResult]: At program point mainFINAL(lines 12 32) the Hoare annotation is: (not (= main_~pc~0.base 0)) [2020-09-04 16:40:25,611 INFO L264 CegarLoopResult]: At program point L13-1(line 13) the Hoare annotation is: (not (= |main_~#c~0.base| 0)) [2020-09-04 16:40:25,611 INFO L264 CegarLoopResult]: At program point L13-2(line 13) the Hoare annotation is: (not (= |main_~#c~0.base| 0)) [2020-09-04 16:40:25,611 INFO L264 CegarLoopResult]: At program point L13-3(line 13) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (not (= |main_~#c~0.base| 0))) [2020-09-04 16:40:25,611 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 16:40:25,611 INFO L264 CegarLoopResult]: At program point L13-5(line 13) the Hoare annotation is: false [2020-09-04 16:40:25,612 INFO L264 CegarLoopResult]: At program point L13-6(line 13) the Hoare annotation is: false [2020-09-04 16:40:25,612 INFO L264 CegarLoopResult]: At program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 30) the Hoare annotation is: false [2020-09-04 16:40:25,622 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 12 32) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2020-09-04 16:40:25,623 INFO L264 CegarLoopResult]: At program point L18(lines 18 19) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-09-04 16:40:25,623 INFO L264 CegarLoopResult]: At program point L18-1(lines 18 19) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset) (not |main_#t~short9|) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-09-04 16:40:25,623 INFO L264 CegarLoopResult]: At program point L18-3(lines 18 21) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not |main_#t~short8|) (not (= |main_~#c~0.base| 0)) (= |main_#t~mem7| |main_#t~mem6|) (= main_~pa~0.base main_~pb~0.base) (= (select (select |#memory_int| main_~pb~0.base) main_~pb~0.offset) |main_#t~mem6|) (= main_~pb~0.offset main_~pa~0.offset) (not |main_#t~short9|) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-09-04 16:40:25,623 INFO L264 CegarLoopResult]: At program point L14(line 14) the Hoare annotation is: (not (= |main_~#c~0.base| 0)) [2020-09-04 16:40:25,623 INFO L264 CegarLoopResult]: At program point L18-4(lines 18 19) the Hoare annotation is: false [2020-09-04 16:40:25,624 INFO L264 CegarLoopResult]: At program point L14-1(line 14) the Hoare annotation is: (not (= |main_~#c~0.base| 0)) [2020-09-04 16:40:25,624 INFO L264 CegarLoopResult]: At program point L18-5(lines 18 19) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not |main_#t~short8|) (not (= |main_~#c~0.base| 0)) (= main_~pa~0.base main_~pb~0.base) (= (select (select |#memory_int| main_~pb~0.base) main_~pb~0.offset) |main_#t~mem6|) (= main_~pb~0.offset main_~pa~0.offset) (not |main_#t~short9|) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-09-04 16:40:25,624 INFO L264 CegarLoopResult]: At program point L14-2(line 14) the Hoare annotation is: (not (= |main_~#c~0.base| 0)) [2020-09-04 16:40:25,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 04:40:25 BoogieIcfgContainer [2020-09-04 16:40:25,649 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 16:40:25,652 INFO L168 Benchmark]: Toolchain (without parser) took 4074.35 ms. Allocated memory was 146.8 MB in the beginning and 244.8 MB in the end (delta: 98.0 MB). Free memory was 104.4 MB in the beginning and 217.8 MB in the end (delta: -113.4 MB). Peak memory consumption was 106.9 MB. Max. memory is 7.1 GB. [2020-09-04 16:40:25,653 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 146.8 MB. Free memory was 122.4 MB in the beginning and 122.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-04 16:40:25,654 INFO L168 Benchmark]: CACSL2BoogieTranslator took 318.94 ms. Allocated memory is still 146.8 MB. Free memory was 104.2 MB in the beginning and 93.8 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2020-09-04 16:40:25,655 INFO L168 Benchmark]: Boogie Preprocessor took 144.19 ms. Allocated memory was 146.8 MB in the beginning and 203.9 MB in the end (delta: 57.1 MB). Free memory was 93.8 MB in the beginning and 182.0 MB in the end (delta: -88.2 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2020-09-04 16:40:25,656 INFO L168 Benchmark]: RCFGBuilder took 453.35 ms. Allocated memory is still 203.9 MB. Free memory was 182.0 MB in the beginning and 161.8 MB in the end (delta: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. [2020-09-04 16:40:25,657 INFO L168 Benchmark]: TraceAbstraction took 3151.75 ms. Allocated memory was 203.9 MB in the beginning and 244.8 MB in the end (delta: 40.9 MB). Free memory was 161.2 MB in the beginning and 217.8 MB in the end (delta: -56.6 MB). Peak memory consumption was 106.5 MB. Max. memory is 7.1 GB. [2020-09-04 16:40:25,661 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 146.8 MB. Free memory was 122.4 MB in the beginning and 122.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 318.94 ms. Allocated memory is still 146.8 MB. Free memory was 104.2 MB in the beginning and 93.8 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 144.19 ms. Allocated memory was 146.8 MB in the beginning and 203.9 MB in the end (delta: 57.1 MB). Free memory was 93.8 MB in the beginning and 182.0 MB in the end (delta: -88.2 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 453.35 ms. Allocated memory is still 203.9 MB. Free memory was 182.0 MB in the beginning and 161.8 MB in the end (delta: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3151.75 ms. Allocated memory was 203.9 MB in the beginning and 244.8 MB in the end (delta: 40.9 MB). Free memory was 161.2 MB in the beginning and 217.8 MB in the end (delta: -56.6 MB). Peak memory consumption was 106.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 30]: 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, 70 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.0s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 204 SDtfs, 166 SDslu, 399 SDs, 0 SdLazy, 383 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 49 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=70occurred 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 70 LocationsWithAnnotation, 70 PreInvPairs, 87 NumberOfFragments, 632 HoareAnnotationTreeSize, 70 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 70 FomulaSimplificationsInter, 314 FormulaSimplificationTreeSizeReductionInter, 0.6s 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...