/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/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-new/count_by_1_variant.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-23 22:12:02,412 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-23 22:12:02,415 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-23 22:12:02,434 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-11-23 22:12:02,496 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-23 22:12:02,526 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-23 22:12:02,526 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-23 22:12:02,529 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-23 22:12:02,532 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-23 22:12:02,532 INFO L138 SettingsManager]: * Use SBE=true [2019-11-23 22:12:02,532 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-23 22:12:02,533 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-23 22:12:02,533 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-23 22:12:02,533 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-23 22:12:02,533 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-23 22:12:02,533 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-23 22:12:02,533 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-23 22:12:02,537 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-23 22:12:02,537 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-23 22:12:02,537 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-23 22:12:02,537 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-23 22:12:02,537 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-23 22:12:02,537 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-23 22:12:02,538 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-23 22:12:02,538 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-23 22:12:02,538 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-23 22:12:02,538 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-23 22:12:02,538 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-23 22:12:02,538 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-23 22:12:02,538 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-23 22:12:02,539 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-23 22:12:02,539 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-23 22:12:02,539 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-23 22:12:02,539 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-23 22:12:02,539 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-23 22:12:02,803 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-23 22:12:02,815 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-23 22:12:02,820 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-23 22:12:02,821 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-23 22:12:02,822 INFO L275 PluginConnector]: CDTParser initialized [2019-11-23 22:12:02,823 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-new/count_by_1_variant.i [2019-11-23 22:12:02,893 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19ed8335c/99e2118893264adcb5343eecb6793052/FLAG0bd955f30 [2019-11-23 22:12:03,355 INFO L306 CDTParser]: Found 1 translation units. [2019-11-23 22:12:03,356 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-new/count_by_1_variant.i [2019-11-23 22:12:03,360 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19ed8335c/99e2118893264adcb5343eecb6793052/FLAG0bd955f30 [2019-11-23 22:12:03,739 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19ed8335c/99e2118893264adcb5343eecb6793052 [2019-11-23 22:12:03,748 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-23 22:12:03,749 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-23 22:12:03,750 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-23 22:12:03,750 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-23 22:12:03,754 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-23 22:12:03,755 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:12:03" (1/1) ... [2019-11-23 22:12:03,757 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ea18467 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:12:03, skipping insertion in model container [2019-11-23 22:12:03,758 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:12:03" (1/1) ... [2019-11-23 22:12:03,765 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-23 22:12:03,781 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-23 22:12:04,018 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 22:12:04,022 INFO L203 MainTranslator]: Completed pre-run [2019-11-23 22:12:04,039 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 22:12:04,057 INFO L208 MainTranslator]: Completed translation [2019-11-23 22:12:04,057 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:12:04 WrapperNode [2019-11-23 22:12:04,057 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-23 22:12:04,058 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-23 22:12:04,058 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-23 22:12:04,058 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-23 22:12:04,067 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:12:04" (1/1) ... [2019-11-23 22:12:04,075 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:12:04" (1/1) ... [2019-11-23 22:12:04,093 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-23 22:12:04,094 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-23 22:12:04,094 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-23 22:12:04,094 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-23 22:12:04,188 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:12:04" (1/1) ... [2019-11-23 22:12:04,188 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:12:04" (1/1) ... [2019-11-23 22:12:04,189 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:12:04" (1/1) ... [2019-11-23 22:12:04,189 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:12:04" (1/1) ... [2019-11-23 22:12:04,191 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:12:04" (1/1) ... [2019-11-23 22:12:04,196 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:12:04" (1/1) ... [2019-11-23 22:12:04,197 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:12:04" (1/1) ... [2019-11-23 22:12:04,198 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-23 22:12:04,199 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-23 22:12:04,199 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-23 22:12:04,199 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-23 22:12:04,200 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:12:04" (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 [2019-11-23 22:12:04,259 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-23 22:12:04,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-23 22:12:04,390 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-23 22:12:04,390 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-23 22:12:04,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:12:04 BoogieIcfgContainer [2019-11-23 22:12:04,392 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-23 22:12:04,393 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-23 22:12:04,393 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-23 22:12:04,395 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-23 22:12:04,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:12:03" (1/3) ... [2019-11-23 22:12:04,397 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51e1e7a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:12:04, skipping insertion in model container [2019-11-23 22:12:04,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:12:04" (2/3) ... [2019-11-23 22:12:04,397 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51e1e7a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:12:04, skipping insertion in model container [2019-11-23 22:12:04,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:12:04" (3/3) ... [2019-11-23 22:12:04,399 INFO L109 eAbstractionObserver]: Analyzing ICFG count_by_1_variant.i [2019-11-23 22:12:04,406 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-23 22:12:04,411 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-23 22:12:04,421 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-23 22:12:04,445 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-23 22:12:04,445 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-23 22:12:04,445 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-23 22:12:04,445 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-23 22:12:04,445 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-23 22:12:04,446 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-23 22:12:04,446 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-23 22:12:04,446 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-23 22:12:04,457 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2019-11-23 22:12:04,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-23 22:12:04,462 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:12:04,463 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-23 22:12:04,463 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:12:04,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:12:04,468 INFO L82 PathProgramCache]: Analyzing trace with hash 962347, now seen corresponding path program 1 times [2019-11-23 22:12:04,475 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:12:04,475 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259804826] [2019-11-23 22:12:04,475 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:12:04,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:12:04,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 22:12:04,708 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259804826] [2019-11-23 22:12:04,709 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 22:12:04,709 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-23 22:12:04,719 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575106711] [2019-11-23 22:12:04,728 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-23 22:12:04,728 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 22:12:04,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-23 22:12:04,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-23 22:12:04,746 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 4 states. [2019-11-23 22:12:04,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:12:04,805 INFO L93 Difference]: Finished difference Result 26 states and 32 transitions. [2019-11-23 22:12:04,806 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-23 22:12:04,807 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-11-23 22:12:04,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:12:04,816 INFO L225 Difference]: With dead ends: 26 [2019-11-23 22:12:04,816 INFO L226 Difference]: Without dead ends: 9 [2019-11-23 22:12:04,819 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-23 22:12:04,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2019-11-23 22:12:04,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2019-11-23 22:12:04,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-11-23 22:12:04,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2019-11-23 22:12:04,848 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2019-11-23 22:12:04,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:12:04,849 INFO L462 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2019-11-23 22:12:04,849 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-23 22:12:04,849 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2019-11-23 22:12:04,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-23 22:12:04,849 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:12:04,849 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2019-11-23 22:12:04,850 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:12:04,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:12:04,850 INFO L82 PathProgramCache]: Analyzing trace with hash -1390656418, now seen corresponding path program 1 times [2019-11-23 22:12:04,851 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:12:04,851 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075980071] [2019-11-23 22:12:04,851 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:12:04,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:12:04,925 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 22:12:04,926 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075980071] [2019-11-23 22:12:04,926 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [786657728] [2019-11-23 22:12:04,927 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 22:12:04,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:12:04,976 INFO L255 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-23 22:12:04,980 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 22:12:04,999 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 22:12:05,012 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 22:12:05,013 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-23 22:12:05,013 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2019-11-23 22:12:05,014 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249795425] [2019-11-23 22:12:05,015 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-23 22:12:05,015 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 22:12:05,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-23 22:12:05,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-23 22:12:05,016 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 6 states. [2019-11-23 22:12:05,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:12:05,086 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2019-11-23 22:12:05,088 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-23 22:12:05,088 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 7 [2019-11-23 22:12:05,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:12:05,089 INFO L225 Difference]: With dead ends: 15 [2019-11-23 22:12:05,089 INFO L226 Difference]: Without dead ends: 13 [2019-11-23 22:12:05,090 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2019-11-23 22:12:05,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-11-23 22:12:05,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 11. [2019-11-23 22:12:05,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-11-23 22:12:05,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2019-11-23 22:12:05,095 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 7 [2019-11-23 22:12:05,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:12:05,095 INFO L462 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2019-11-23 22:12:05,096 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-23 22:12:05,096 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2019-11-23 22:12:05,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-23 22:12:05,096 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:12:05,097 INFO L410 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1] [2019-11-23 22:12:05,302 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 22:12:05,303 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:12:05,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:12:05,304 INFO L82 PathProgramCache]: Analyzing trace with hash 214023755, now seen corresponding path program 2 times [2019-11-23 22:12:05,304 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:12:05,305 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059258210] [2019-11-23 22:12:05,305 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:12:05,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:12:05,397 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 22:12:05,400 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059258210] [2019-11-23 22:12:05,400 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2055434307] [2019-11-23 22:12:05,400 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 22:12:05,437 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-23 22:12:05,438 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-23 22:12:05,439 INFO L255 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-23 22:12:05,441 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 22:12:05,450 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 22:12:05,464 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 22:12:05,465 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-23 22:12:05,465 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2019-11-23 22:12:05,465 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420843294] [2019-11-23 22:12:05,466 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-23 22:12:05,466 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 22:12:05,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-23 22:12:05,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-11-23 22:12:05,467 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand 7 states. [2019-11-23 22:12:05,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:12:05,547 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2019-11-23 22:12:05,547 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-23 22:12:05,547 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 10 [2019-11-23 22:12:05,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:12:05,548 INFO L225 Difference]: With dead ends: 18 [2019-11-23 22:12:05,548 INFO L226 Difference]: Without dead ends: 16 [2019-11-23 22:12:05,549 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2019-11-23 22:12:05,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-11-23 22:12:05,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 14. [2019-11-23 22:12:05,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-11-23 22:12:05,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2019-11-23 22:12:05,555 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 10 [2019-11-23 22:12:05,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:12:05,555 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2019-11-23 22:12:05,555 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-23 22:12:05,556 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2019-11-23 22:12:05,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-23 22:12:05,556 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:12:05,556 INFO L410 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1] [2019-11-23 22:12:05,766 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 22:12:05,766 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:12:05,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:12:05,767 INFO L82 PathProgramCache]: Analyzing trace with hash -2039914178, now seen corresponding path program 3 times [2019-11-23 22:12:05,767 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:12:05,767 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908113523] [2019-11-23 22:12:05,767 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:12:05,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:12:05,843 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 22:12:05,844 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908113523] [2019-11-23 22:12:05,844 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [110163170] [2019-11-23 22:12:05,845 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 22:12:05,867 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-11-23 22:12:05,867 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-23 22:12:05,868 INFO L255 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-23 22:12:05,870 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 22:12:05,912 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 22:12:05,959 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 22:12:05,972 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-11-23 22:12:05,973 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-23 22:12:05,975 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2019-11-23 22:12:05,975 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323785015] [2019-11-23 22:12:05,976 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-23 22:12:05,976 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 22:12:05,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-23 22:12:05,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2019-11-23 22:12:05,980 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 11 states. [2019-11-23 22:12:06,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:12:06,184 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2019-11-23 22:12:06,184 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-23 22:12:06,184 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 13 [2019-11-23 22:12:06,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:12:06,185 INFO L225 Difference]: With dead ends: 19 [2019-11-23 22:12:06,185 INFO L226 Difference]: Without dead ends: 0 [2019-11-23 22:12:06,186 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=100, Invalid=172, Unknown=0, NotChecked=0, Total=272 [2019-11-23 22:12:06,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-23 22:12:06,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-23 22:12:06,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-23 22:12:06,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-23 22:12:06,188 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2019-11-23 22:12:06,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:12:06,189 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-23 22:12:06,189 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-23 22:12:06,189 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-23 22:12:06,189 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-23 22:12:06,390 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 22:12:06,394 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-23 22:12:06,539 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-23 22:12:06,540 INFO L440 ceAbstractionStarter]: At program point L15(lines 10 16) the Hoare annotation is: (<= ULTIMATE.start_main_~i~0 1000000) [2019-11-23 22:12:06,540 INFO L444 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-11-23 22:12:06,540 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-23 22:12:06,540 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-23 22:12:06,540 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-23 22:12:06,541 INFO L440 ceAbstractionStarter]: At program point L12-2(lines 12 14) the Hoare annotation is: (or (<= ULTIMATE.start_main_~i~0 0) (and (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= ULTIMATE.start_main_~i~0 1000000))) [2019-11-23 22:12:06,541 INFO L444 ceAbstractionStarter]: For program point L12-3(lines 12 14) no Hoare annotation was computed. [2019-11-23 22:12:06,541 INFO L444 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-11-23 22:12:06,541 INFO L440 ceAbstractionStarter]: At program point L4-2(lines 1 16) the Hoare annotation is: (and (not (= ULTIMATE.start_main_~i~0 1000000)) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= ULTIMATE.start_main_~i~0 1000000)) [2019-11-23 22:12:06,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 10:12:06 BoogieIcfgContainer [2019-11-23 22:12:06,562 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-23 22:12:06,568 INFO L168 Benchmark]: Toolchain (without parser) took 2815.43 ms. Allocated memory was 145.8 MB in the beginning and 235.4 MB in the end (delta: 89.7 MB). Free memory was 104.0 MB in the beginning and 173.2 MB in the end (delta: -69.1 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. [2019-11-23 22:12:06,570 INFO L168 Benchmark]: CDTParser took 1.45 ms. Allocated memory is still 145.8 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-11-23 22:12:06,571 INFO L168 Benchmark]: CACSL2BoogieTranslator took 307.52 ms. Allocated memory is still 145.8 MB. Free memory was 103.6 MB in the beginning and 94.5 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. [2019-11-23 22:12:06,578 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.36 ms. Allocated memory is still 145.8 MB. Free memory was 94.5 MB in the beginning and 93.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 7.1 GB. [2019-11-23 22:12:06,579 INFO L168 Benchmark]: Boogie Preprocessor took 105.02 ms. Allocated memory was 145.8 MB in the beginning and 203.4 MB in the end (delta: 57.7 MB). Free memory was 93.0 MB in the beginning and 182.0 MB in the end (delta: -89.0 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2019-11-23 22:12:06,580 INFO L168 Benchmark]: RCFGBuilder took 192.72 ms. Allocated memory is still 203.4 MB. Free memory was 182.0 MB in the beginning and 172.3 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2019-11-23 22:12:06,581 INFO L168 Benchmark]: TraceAbstraction took 2170.04 ms. Allocated memory was 203.4 MB in the beginning and 235.4 MB in the end (delta: 32.0 MB). Free memory was 171.6 MB in the beginning and 173.2 MB in the end (delta: -1.5 MB). Peak memory consumption was 30.5 MB. Max. memory is 7.1 GB. [2019-11-23 22:12:06,595 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.45 ms. Allocated memory is still 145.8 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 307.52 ms. Allocated memory is still 145.8 MB. Free memory was 103.6 MB in the beginning and 94.5 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 35.36 ms. Allocated memory is still 145.8 MB. Free memory was 94.5 MB in the beginning and 93.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 105.02 ms. Allocated memory was 145.8 MB in the beginning and 203.4 MB in the end (delta: 57.7 MB). Free memory was 93.0 MB in the beginning and 182.0 MB in the end (delta: -89.0 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 192.72 ms. Allocated memory is still 203.4 MB. Free memory was 182.0 MB in the beginning and 172.3 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2170.04 ms. Allocated memory was 203.4 MB in the beginning and 235.4 MB in the end (delta: 32.0 MB). Free memory was 171.6 MB in the beginning and 173.2 MB in the end (delta: -1.5 MB). Peak memory consumption was 30.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: 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: 10]: Loop Invariant Derived loop invariant: i <= 1000000 - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: i <= 0 || (1 == cond && i <= 1000000) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (!(i == 1000000) && 1 == cond) && i <= 1000000 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Result: SAFE, OverallTime: 2.0s, OverallIterations: 4, TraceHistogramMax: 4, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 18 SDtfs, 49 SDslu, 29 SDs, 0 SdLazy, 57 SolverSat, 46 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=3, 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, 5 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 16 NumberOfFragments, 25 HoareAnnotationTreeSize, 3 FomulaSimplifications, 434 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 90 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 64 NumberOfCodeBlocks, 61 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 57 ConstructedInterpolants, 0 QuantifiedInterpolants, 1605 SizeOfPredicates, 11 NumberOfNonLiveVariables, 76 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 14/48 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...