/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_1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 13:58:37,691 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 13:58:37,693 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 13:58:37,713 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-07-07 13:58:37,736 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 13:58:37,740 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 13:58:37,743 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 13:58:37,744 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 13:58:37,747 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 13:58:37,749 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 13:58:37,751 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 13:58:37,757 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 13:58:37,761 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 13:58:37,762 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 13:58:37,764 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 13:58:37,765 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 13:58:37,768 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-07 13:58:37,783 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 13:58:37,784 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 13:58:37,786 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 13:58:37,787 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-07 13:58:37,821 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 13:58:37,821 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 13:58:37,824 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 13:58:37,825 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 13:58:37,825 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 13:58:37,825 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 13:58:37,825 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 13:58:37,828 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 13:58:37,828 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 13:58:37,829 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 13:58:37,829 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 13:58:37,829 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 13:58:37,829 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 13:58:37,829 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 13:58:37,830 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 13:58:37,830 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-07 13:58:37,830 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 13:58:37,830 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 13:58:37,830 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 13:58:37,831 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 13:58:37,831 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-07 13:58:37,831 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 13:58:37,831 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-07 13:58:38,102 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 13:58:38,115 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 13:58:38,119 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 13:58:38,120 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 13:58:38,120 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 13:58:38,121 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/for_infinite_loop_1.c [2020-07-07 13:58:38,187 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/863535b88/0e63cb411804404689ec5d5002d367f7/FLAGe5722eb27 [2020-07-07 13:58:38,671 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 13:58:38,672 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/for_infinite_loop_1.c [2020-07-07 13:58:38,678 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/863535b88/0e63cb411804404689ec5d5002d367f7/FLAGe5722eb27 [2020-07-07 13:58:39,023 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/863535b88/0e63cb411804404689ec5d5002d367f7 [2020-07-07 13:58:39,032 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 13:58:39,034 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 13:58:39,036 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 13:58:39,036 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 13:58:39,040 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 13:58:39,041 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 01:58:39" (1/1) ... [2020-07-07 13:58:39,044 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23f91bba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:58:39, skipping insertion in model container [2020-07-07 13:58:39,044 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 01:58:39" (1/1) ... [2020-07-07 13:58:39,052 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 13:58:39,069 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 13:58:39,263 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 13:58:39,267 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 13:58:39,284 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 13:58:39,300 INFO L208 MainTranslator]: Completed translation [2020-07-07 13:58:39,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:58:39 WrapperNode [2020-07-07 13:58:39,300 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 13:58:39,301 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 13:58:39,301 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 13:58:39,302 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 13:58:39,316 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:58:39" (1/1) ... [2020-07-07 13:58:39,316 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:58:39" (1/1) ... [2020-07-07 13:58:39,322 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:58:39" (1/1) ... [2020-07-07 13:58:39,322 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:58:39" (1/1) ... [2020-07-07 13:58:39,326 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:58:39" (1/1) ... [2020-07-07 13:58:39,332 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:58:39" (1/1) ... [2020-07-07 13:58:39,333 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:58:39" (1/1) ... [2020-07-07 13:58:39,334 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 13:58:39,335 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 13:58:39,335 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 13:58:39,335 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 13:58:39,336 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:58:39" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 13:58:39,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 13:58:39,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 13:58:39,467 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-07 13:58:39,467 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-07 13:58:39,467 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 13:58:39,467 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 13:58:39,468 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-07 13:58:39,468 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-07 13:58:39,468 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-07 13:58:39,468 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 13:58:39,468 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 13:58:39,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 13:58:39,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 13:58:39,690 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 13:58:39,690 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-07 13:58:39,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 01:58:39 BoogieIcfgContainer [2020-07-07 13:58:39,696 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 13:58:39,698 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 13:58:39,698 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 13:58:39,702 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 13:58:39,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 01:58:39" (1/3) ... [2020-07-07 13:58:39,704 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a2d529b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 01:58:39, skipping insertion in model container [2020-07-07 13:58:39,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:58:39" (2/3) ... [2020-07-07 13:58:39,704 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a2d529b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 01:58:39, skipping insertion in model container [2020-07-07 13:58:39,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 01:58:39" (3/3) ... [2020-07-07 13:58:39,706 INFO L109 eAbstractionObserver]: Analyzing ICFG for_infinite_loop_1.c [2020-07-07 13:58:39,718 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-07 13:58:39,726 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 13:58:39,744 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 13:58:39,771 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 13:58:39,772 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 13:58:39,772 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-07 13:58:39,772 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 13:58:39,772 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 13:58:39,772 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 13:58:39,773 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 13:58:39,773 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 13:58:39,789 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2020-07-07 13:58:39,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-07-07 13:58:39,807 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:58:39,808 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:58:39,814 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:58:39,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:58:39,826 INFO L82 PathProgramCache]: Analyzing trace with hash 390901091, now seen corresponding path program 1 times [2020-07-07 13:58:39,846 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:58:39,847 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [464472451] [2020-07-07 13:58:39,847 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:58:39,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:58:40,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:58:40,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:58:40,057 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:58:40,060 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [464472451] [2020-07-07 13:58:40,062 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:58:40,062 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-07 13:58:40,063 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126894449] [2020-07-07 13:58:40,069 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-07 13:58:40,069 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:58:40,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-07 13:58:40,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-07 13:58:40,089 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 5 states. [2020-07-07 13:58:40,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:58:40,152 INFO L93 Difference]: Finished difference Result 42 states and 49 transitions. [2020-07-07 13:58:40,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 13:58:40,154 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-07-07 13:58:40,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:58:40,162 INFO L225 Difference]: With dead ends: 42 [2020-07-07 13:58:40,162 INFO L226 Difference]: Without dead ends: 0 [2020-07-07 13:58:40,168 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 [2020-07-07 13:58:40,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-07 13:58:40,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-07 13:58:40,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-07 13:58:40,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-07 13:58:40,197 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-07-07 13:58:40,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:58:40,198 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-07 13:58:40,198 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-07 13:58:40,198 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-07 13:58:40,199 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-07 13:58:40,200 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 13:58:40,202 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-07 13:58:40,384 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-07-07 13:58:40,384 INFO L271 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-07-07 13:58:40,384 INFO L271 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-07-07 13:58:40,384 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-07 13:58:40,385 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-07 13:58:40,385 INFO L271 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-07-07 13:58:40,385 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 4 6) no Hoare annotation was computed. [2020-07-07 13:58:40,385 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-07-07 13:58:40,386 INFO L268 CegarLoopResult]: For program point L5-1(line 5) no Hoare annotation was computed. [2020-07-07 13:58:40,386 INFO L268 CegarLoopResult]: For program point L5-3(lines 4 6) no Hoare annotation was computed. [2020-07-07 13:58:40,386 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 4 6) no Hoare annotation was computed. [2020-07-07 13:58:40,386 INFO L264 CegarLoopResult]: At program point mainEXIT(lines 16 26) the Hoare annotation is: (= 0 main_~x~0) [2020-07-07 13:58:40,386 INFO L264 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: (= 0 main_~x~0) [2020-07-07 13:58:40,387 INFO L264 CegarLoopResult]: At program point L23-1(lines 21 24) the Hoare annotation is: (= 0 main_~x~0) [2020-07-07 13:58:40,387 INFO L264 CegarLoopResult]: At program point L21(line 21) the Hoare annotation is: (= 0 main_~x~0) [2020-07-07 13:58:40,387 INFO L264 CegarLoopResult]: At program point L19(line 19) the Hoare annotation is: (= 0 main_~x~0) [2020-07-07 13:58:40,387 INFO L264 CegarLoopResult]: At program point L19-1(line 19) the Hoare annotation is: (= 0 main_~x~0) [2020-07-07 13:58:40,388 INFO L264 CegarLoopResult]: At program point L21-3(line 21) the Hoare annotation is: (= 0 main_~x~0) [2020-07-07 13:58:40,388 INFO L264 CegarLoopResult]: At program point L19-2(line 19) the Hoare annotation is: (= 0 main_~x~0) [2020-07-07 13:58:40,388 INFO L264 CegarLoopResult]: At program point L21-4(line 21) the Hoare annotation is: (= 0 main_~x~0) [2020-07-07 13:58:40,389 INFO L264 CegarLoopResult]: At program point L21-5(lines 21 24) the Hoare annotation is: (= 0 main_~x~0) [2020-07-07 13:58:40,389 INFO L264 CegarLoopResult]: At program point L21-6(lines 21 24) the Hoare annotation is: false [2020-07-07 13:58:40,389 INFO L264 CegarLoopResult]: At program point mainFINAL(lines 16 26) the Hoare annotation is: (= 0 main_~x~0) [2020-07-07 13:58:40,389 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 16 26) the Hoare annotation is: true [2020-07-07 13:58:40,389 INFO L264 CegarLoopResult]: At program point L20(line 20) the Hoare annotation is: (= 0 main_~x~0) [2020-07-07 13:58:40,390 INFO L264 CegarLoopResult]: At program point L20-1(line 20) the Hoare annotation is: (= 0 main_~x~0) [2020-07-07 13:58:40,390 INFO L271 CegarLoopResult]: At program point L18(line 18) the Hoare annotation is: true [2020-07-07 13:58:40,390 INFO L264 CegarLoopResult]: At program point L18-1(line 18) the Hoare annotation is: (= 0 main_~x~0) [2020-07-07 13:58:40,390 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 7 12) the Hoare annotation is: true [2020-07-07 13:58:40,391 INFO L264 CegarLoopResult]: At program point __VERIFIER_assertEXIT(lines 7 12) the Hoare annotation is: (or (= 0 |__VERIFIER_assert_#in~cond|) (not (= 0 __VERIFIER_assert_~cond))) [2020-07-07 13:58:40,391 INFO L264 CegarLoopResult]: At program point L9(line 9) the Hoare annotation is: (= 0 |__VERIFIER_assert_#in~cond|) [2020-07-07 13:58:40,391 INFO L264 CegarLoopResult]: At program point L8(lines 8 10) the Hoare annotation is: (or (= 0 |__VERIFIER_assert_#in~cond|) (not (= 0 __VERIFIER_assert_~cond))) [2020-07-07 13:58:40,391 INFO L264 CegarLoopResult]: At program point L8-2(lines 7 12) the Hoare annotation is: (or (= 0 |__VERIFIER_assert_#in~cond|) (not (= 0 __VERIFIER_assert_~cond))) [2020-07-07 13:58:40,392 INFO L264 CegarLoopResult]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 9) the Hoare annotation is: (= 0 |__VERIFIER_assert_#in~cond|) [2020-07-07 13:58:40,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 01:58:40 BoogieIcfgContainer [2020-07-07 13:58:40,413 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 13:58:40,416 INFO L168 Benchmark]: Toolchain (without parser) took 1381.07 ms. Allocated memory was 146.8 MB in the beginning and 203.9 MB in the end (delta: 57.1 MB). Free memory was 105.4 MB in the beginning and 129.7 MB in the end (delta: -24.4 MB). Peak memory consumption was 32.8 MB. Max. memory is 7.1 GB. [2020-07-07 13:58:40,417 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 146.8 MB. Free memory was 123.4 MB in the beginning and 123.1 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-07 13:58:40,418 INFO L168 Benchmark]: CACSL2BoogieTranslator took 265.23 ms. Allocated memory is still 146.8 MB. Free memory was 105.2 MB in the beginning and 95.7 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2020-07-07 13:58:40,420 INFO L168 Benchmark]: Boogie Preprocessor took 33.06 ms. Allocated memory is still 146.8 MB. Free memory was 95.7 MB in the beginning and 94.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-07-07 13:58:40,421 INFO L168 Benchmark]: RCFGBuilder took 361.60 ms. Allocated memory was 146.8 MB in the beginning and 203.9 MB in the end (delta: 57.1 MB). Free memory was 94.2 MB in the beginning and 170.4 MB in the end (delta: -76.2 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2020-07-07 13:58:40,422 INFO L168 Benchmark]: TraceAbstraction took 715.65 ms. Allocated memory is still 203.9 MB. Free memory was 169.7 MB in the beginning and 129.7 MB in the end (delta: 40.0 MB). Peak memory consumption was 40.0 MB. Max. memory is 7.1 GB. [2020-07-07 13:58:40,426 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 146.8 MB. Free memory was 123.4 MB in the beginning and 123.1 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 265.23 ms. Allocated memory is still 146.8 MB. Free memory was 105.2 MB in the beginning and 95.7 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 33.06 ms. Allocated memory is still 146.8 MB. Free memory was 95.7 MB in the beginning and 94.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 361.60 ms. Allocated memory was 146.8 MB in the beginning and 203.9 MB in the end (delta: 57.1 MB). Free memory was 94.2 MB in the beginning and 170.4 MB in the end (delta: -76.2 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 715.65 ms. Allocated memory is still 203.9 MB. Free memory was 169.7 MB in the beginning and 129.7 MB in the end (delta: 40.0 MB). Peak memory consumption was 40.0 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: 0 == x - ProcedureContractResult [Line: 16]: Procedure Contract for main Derived contract for procedure main: 0 == x - ProcedureContractResult [Line: 7]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: 0 == \old(cond) || !(0 == cond) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, 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...