/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/loops/for_infinite_loop_2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 19:45:19,620 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 19:45:19,623 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 19:45:19,656 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 19:45:19,656 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 19:45:19,657 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 19:45:19,658 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 19:45:19,660 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 19:45:19,661 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 19:45:19,662 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 19:45:19,663 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 19:45:19,664 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 19:45:19,664 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 19:45:19,665 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 19:45:19,666 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 19:45:19,667 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 19:45:19,668 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 19:45:19,669 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 19:45:19,670 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 19:45:19,672 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 19:45:19,675 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 19:45:19,676 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 19:45:19,677 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 19:45:19,678 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 19:45:19,680 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-22 19:45:19,687 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 19:45:19,688 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 19:45:19,689 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 19:45:19,690 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-08-22 19:45:19,698 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 19:45:19,699 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 19:45:19,700 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 19:45:19,700 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 19:45:19,700 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 19:45:19,700 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 19:45:19,701 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 19:45:19,701 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 19:45:19,701 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 19:45:19,701 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 19:45:19,701 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 19:45:19,701 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 19:45:19,702 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 19:45:19,702 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 19:45:19,702 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 19:45:19,702 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 19:45:19,702 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 19:45:19,703 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 19:45:19,703 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 19:45:19,703 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 19:45:19,703 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 19:45:19,703 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 19:45:19,703 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-08-22 19:45:20,013 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 19:45:20,028 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 19:45:20,032 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 19:45:20,033 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 19:45:20,034 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 19:45:20,034 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/for_infinite_loop_2.c [2020-08-22 19:45:20,103 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fae00a793/d6a236a92c3447399ff8bfddddc59eb5/FLAG1a19e1c24 [2020-08-22 19:45:20,536 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 19:45:20,537 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/for_infinite_loop_2.c [2020-08-22 19:45:20,543 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fae00a793/d6a236a92c3447399ff8bfddddc59eb5/FLAG1a19e1c24 [2020-08-22 19:45:20,953 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fae00a793/d6a236a92c3447399ff8bfddddc59eb5 [2020-08-22 19:45:20,964 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 19:45:20,966 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 19:45:20,967 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 19:45:20,967 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 19:45:20,972 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 19:45:20,973 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 07:45:20" (1/1) ... [2020-08-22 19:45:20,976 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4137acd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:45:20, skipping insertion in model container [2020-08-22 19:45:20,976 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 07:45:20" (1/1) ... [2020-08-22 19:45:20,984 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 19:45:21,002 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 19:45:21,177 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 19:45:21,182 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 19:45:21,200 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 19:45:21,218 INFO L208 MainTranslator]: Completed translation [2020-08-22 19:45:21,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:45:21 WrapperNode [2020-08-22 19:45:21,219 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 19:45:21,219 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 19:45:21,220 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 19:45:21,220 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 19:45:21,236 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:45:21" (1/1) ... [2020-08-22 19:45:21,237 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:45:21" (1/1) ... [2020-08-22 19:45:21,329 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:45:21" (1/1) ... [2020-08-22 19:45:21,330 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:45:21" (1/1) ... [2020-08-22 19:45:21,334 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:45:21" (1/1) ... [2020-08-22 19:45:21,340 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:45:21" (1/1) ... [2020-08-22 19:45:21,341 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:45:21" (1/1) ... [2020-08-22 19:45:21,342 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 19:45:21,343 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 19:45:21,343 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 19:45:21,343 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 19:45:21,345 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:45:21" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 19:45:21,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 19:45:21,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 19:45:21,432 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-08-22 19:45:21,432 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-08-22 19:45:21,432 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 19:45:21,433 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 19:45:21,433 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-22 19:45:21,433 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-08-22 19:45:21,433 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-08-22 19:45:21,433 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 19:45:21,433 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 19:45:21,434 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 19:45:21,434 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 19:45:21,631 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 19:45:21,631 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-22 19:45:21,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 07:45:21 BoogieIcfgContainer [2020-08-22 19:45:21,635 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 19:45:21,636 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 19:45:21,636 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 19:45:21,639 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 19:45:21,640 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 07:45:20" (1/3) ... [2020-08-22 19:45:21,641 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fffa490 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 07:45:21, skipping insertion in model container [2020-08-22 19:45:21,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:45:21" (2/3) ... [2020-08-22 19:45:21,641 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fffa490 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 07:45:21, skipping insertion in model container [2020-08-22 19:45:21,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 07:45:21" (3/3) ... [2020-08-22 19:45:21,644 INFO L109 eAbstractionObserver]: Analyzing ICFG for_infinite_loop_2.c [2020-08-22 19:45:21,655 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 19:45:21,663 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 19:45:21,681 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 19:45:21,706 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 19:45:21,706 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 19:45:21,706 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-08-22 19:45:21,706 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 19:45:21,707 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 19:45:21,707 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 19:45:21,707 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 19:45:21,707 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 19:45:21,729 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2020-08-22 19:45:21,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-08-22 19:45:21,743 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:45:21,745 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 19:45:21,745 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:45:21,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:45:21,754 INFO L82 PathProgramCache]: Analyzing trace with hash 390901091, now seen corresponding path program 1 times [2020-08-22 19:45:21,767 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:45:21,768 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [689577219] [2020-08-22 19:45:21,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:45:21,892 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:45:21,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:45:22,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:45:22,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:45:22,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:45:22,122 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [689577219] [2020-08-22 19:45:22,123 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:45:22,124 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-22 19:45:22,125 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110208552] [2020-08-22 19:45:22,130 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 19:45:22,130 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:45:22,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 19:45:22,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-22 19:45:22,144 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 5 states. [2020-08-22 19:45:22,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:45:22,214 INFO L93 Difference]: Finished difference Result 42 states and 49 transitions. [2020-08-22 19:45:22,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-22 19:45:22,217 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-08-22 19:45:22,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:45:22,225 INFO L225 Difference]: With dead ends: 42 [2020-08-22 19:45:22,225 INFO L226 Difference]: Without dead ends: 0 [2020-08-22 19:45:22,230 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-22 19:45:22,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-22 19:45:22,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-22 19:45:22,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-22 19:45:22,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-22 19:45:22,254 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-08-22 19:45:22,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:45:22,254 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-22 19:45:22,254 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 19:45:22,255 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-22 19:45:22,255 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-22 19:45:22,255 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 19:45:22,257 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-22 19:45:22,457 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-08-22 19:45:22,458 INFO L271 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-08-22 19:45:22,458 INFO L271 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-08-22 19:45:22,458 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-08-22 19:45:22,458 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-22 19:45:22,459 INFO L271 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-08-22 19:45:22,459 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 4 6) no Hoare annotation was computed. [2020-08-22 19:45:22,460 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-08-22 19:45:22,460 INFO L268 CegarLoopResult]: For program point L5-1(line 5) no Hoare annotation was computed. [2020-08-22 19:45:22,460 INFO L268 CegarLoopResult]: For program point L5-3(lines 4 6) no Hoare annotation was computed. [2020-08-22 19:45:22,460 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 4 6) no Hoare annotation was computed. [2020-08-22 19:45:22,461 INFO L264 CegarLoopResult]: At program point mainEXIT(lines 16 26) the Hoare annotation is: (= main_~x~0 0) [2020-08-22 19:45:22,461 INFO L264 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: (= main_~x~0 0) [2020-08-22 19:45:22,461 INFO L264 CegarLoopResult]: At program point L23-1(lines 21 24) the Hoare annotation is: (= main_~x~0 0) [2020-08-22 19:45:22,463 INFO L264 CegarLoopResult]: At program point L21(line 21) the Hoare annotation is: (= main_~x~0 0) [2020-08-22 19:45:22,463 INFO L264 CegarLoopResult]: At program point L19(line 19) the Hoare annotation is: (= main_~x~0 0) [2020-08-22 19:45:22,464 INFO L264 CegarLoopResult]: At program point L19-1(line 19) the Hoare annotation is: (= main_~x~0 0) [2020-08-22 19:45:22,464 INFO L264 CegarLoopResult]: At program point L21-3(line 21) the Hoare annotation is: (= main_~x~0 0) [2020-08-22 19:45:22,465 INFO L264 CegarLoopResult]: At program point L19-2(line 19) the Hoare annotation is: (= main_~x~0 0) [2020-08-22 19:45:22,466 INFO L264 CegarLoopResult]: At program point L21-4(line 21) the Hoare annotation is: (= main_~x~0 0) [2020-08-22 19:45:22,466 INFO L264 CegarLoopResult]: At program point L21-5(lines 21 24) the Hoare annotation is: (= main_~x~0 0) [2020-08-22 19:45:22,466 INFO L264 CegarLoopResult]: At program point L21-6(lines 21 24) the Hoare annotation is: false [2020-08-22 19:45:22,466 INFO L264 CegarLoopResult]: At program point mainFINAL(lines 16 26) the Hoare annotation is: (= main_~x~0 0) [2020-08-22 19:45:22,467 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 16 26) the Hoare annotation is: true [2020-08-22 19:45:22,467 INFO L264 CegarLoopResult]: At program point L20(line 20) the Hoare annotation is: (= main_~x~0 0) [2020-08-22 19:45:22,467 INFO L264 CegarLoopResult]: At program point L20-1(line 20) the Hoare annotation is: (= main_~x~0 0) [2020-08-22 19:45:22,467 INFO L271 CegarLoopResult]: At program point L18(line 18) the Hoare annotation is: true [2020-08-22 19:45:22,469 INFO L264 CegarLoopResult]: At program point L18-1(line 18) the Hoare annotation is: (= main_~x~0 0) [2020-08-22 19:45:22,471 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 7 12) the Hoare annotation is: true [2020-08-22 19:45:22,471 INFO L264 CegarLoopResult]: At program point __VERIFIER_assertEXIT(lines 7 12) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2020-08-22 19:45:22,472 INFO L264 CegarLoopResult]: At program point L9(line 9) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2020-08-22 19:45:22,472 INFO L264 CegarLoopResult]: At program point L8(lines 8 10) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2020-08-22 19:45:22,472 INFO L264 CegarLoopResult]: At program point L8-2(lines 7 12) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2020-08-22 19:45:22,472 INFO L264 CegarLoopResult]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 9) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2020-08-22 19:45:22,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 07:45:22 BoogieIcfgContainer [2020-08-22 19:45:22,506 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 19:45:22,510 INFO L168 Benchmark]: Toolchain (without parser) took 1543.04 ms. Allocated memory was 144.7 MB in the beginning and 201.3 MB in the end (delta: 56.6 MB). Free memory was 102.1 MB in the beginning and 124.8 MB in the end (delta: -22.7 MB). Peak memory consumption was 33.9 MB. Max. memory is 7.1 GB. [2020-08-22 19:45:22,512 INFO L168 Benchmark]: CDTParser took 0.83 ms. Allocated memory is still 144.7 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-22 19:45:22,515 INFO L168 Benchmark]: CACSL2BoogieTranslator took 252.38 ms. Allocated memory is still 144.7 MB. Free memory was 101.9 MB in the beginning and 92.4 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. [2020-08-22 19:45:22,516 INFO L168 Benchmark]: Boogie Preprocessor took 122.97 ms. Allocated memory was 144.7 MB in the beginning and 201.3 MB in the end (delta: 56.6 MB). Free memory was 92.4 MB in the beginning and 180.3 MB in the end (delta: -87.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. [2020-08-22 19:45:22,518 INFO L168 Benchmark]: RCFGBuilder took 292.45 ms. Allocated memory is still 201.3 MB. Free memory was 179.7 MB in the beginning and 166.8 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. [2020-08-22 19:45:22,519 INFO L168 Benchmark]: TraceAbstraction took 870.00 ms. Allocated memory is still 201.3 MB. Free memory was 166.1 MB in the beginning and 124.8 MB in the end (delta: 41.3 MB). Peak memory consumption was 41.3 MB. Max. memory is 7.1 GB. [2020-08-22 19:45:22,531 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.83 ms. Allocated memory is still 144.7 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 252.38 ms. Allocated memory is still 144.7 MB. Free memory was 101.9 MB in the beginning and 92.4 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 122.97 ms. Allocated memory was 144.7 MB in the beginning and 201.3 MB in the end (delta: 56.6 MB). Free memory was 92.4 MB in the beginning and 180.3 MB in the end (delta: -87.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 292.45 ms. Allocated memory is still 201.3 MB. Free memory was 179.7 MB in the beginning and 166.8 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 870.00 ms. Allocated memory is still 201.3 MB. Free memory was 166.1 MB in the beginning and 124.8 MB in the end (delta: 41.3 MB). Peak memory consumption was 41.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 9]: 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: 21]: Loop Invariant Derived loop invariant: x == 0 - ProcedureContractResult [Line: 16]: Procedure Contract for main Derived contract for procedure main: x == 0 - ProcedureContractResult [Line: 7]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: \old(cond) == 0 || !(cond == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 23 SDtfs, 11 SDslu, 52 SDs, 0 SdLazy, 7 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 29 LocationsWithAnnotation, 41 PreInvPairs, 52 NumberOfFragments, 82 HoareAnnotationTreeSize, 41 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 29 FomulaSimplificationsInter, 15 FormulaSimplificationTreeSizeReductionInter, 0.1s 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...