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/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/loop-lit/jm2006_variant.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:25:57,137 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:25:57,139 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:25:57,150 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-20 13:25:57,185 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:25:57,186 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:25:57,186 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:25:57,187 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-20 13:25:57,202 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:25:57,202 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:25:57,203 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:25:57,203 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:25:57,204 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:25:57,204 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:25:57,204 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:25:57,204 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:25:57,204 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:25:57,205 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:25:57,205 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:25:57,205 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:25:57,206 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:25:57,206 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:25:57,206 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:25:57,206 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:25:57,206 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:25:57,207 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:25:57,207 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:25:57,207 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:25:57,207 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:25:57,207 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:25:57,208 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:25:57,208 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:25:57,208 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:25:57,208 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:25:57,208 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:25:57,209 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:25:57,209 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:25:57,209 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:25:57,236 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:25:57,248 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:25:57,251 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:25:57,253 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:25:57,253 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:25:57,254 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/jm2006_variant.i [2019-09-20 13:25:57,312 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73ddcbde9/bd1718fd6a8e4856b41c124708a97bad/FLAG7cebdad38 [2019-09-20 13:25:57,679 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:25:57,680 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/jm2006_variant.i [2019-09-20 13:25:57,685 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73ddcbde9/bd1718fd6a8e4856b41c124708a97bad/FLAG7cebdad38 [2019-09-20 13:25:58,053 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73ddcbde9/bd1718fd6a8e4856b41c124708a97bad [2019-09-20 13:25:58,064 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:25:58,065 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:25:58,067 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:25:58,067 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:25:58,072 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:25:58,074 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:25:58" (1/1) ... [2019-09-20 13:25:58,077 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45126d08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:58, skipping insertion in model container [2019-09-20 13:25:58,078 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:25:58" (1/1) ... [2019-09-20 13:25:58,086 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:25:58,109 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:25:58,369 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:25:58,378 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:25:58,399 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:25:58,412 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:25:58,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:58 WrapperNode [2019-09-20 13:25:58,413 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:25:58,414 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:25:58,414 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:25:58,414 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:25:58,428 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:58" (1/1) ... [2019-09-20 13:25:58,429 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:58" (1/1) ... [2019-09-20 13:25:58,525 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:58" (1/1) ... [2019-09-20 13:25:58,526 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:58" (1/1) ... [2019-09-20 13:25:58,532 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:58" (1/1) ... [2019-09-20 13:25:58,538 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:58" (1/1) ... [2019-09-20 13:25:58,544 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:58" (1/1) ... [2019-09-20 13:25:58,551 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:25:58,552 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:25:58,552 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:25:58,552 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:25:58,553 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:58" (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 [2019-09-20 13:25:58,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:25:58,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:25:58,626 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-20 13:25:58,626 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:25:58,626 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:25:58,627 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-20 13:25:58,627 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-20 13:25:58,627 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:25:58,627 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:25:58,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:25:58,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:25:58,836 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:25:58,837 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-20 13:25:58,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:25:58 BoogieIcfgContainer [2019-09-20 13:25:58,838 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:25:58,839 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:25:58,839 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:25:58,842 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:25:58,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:25:58" (1/3) ... [2019-09-20 13:25:58,843 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8d50207 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:25:58, skipping insertion in model container [2019-09-20 13:25:58,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:58" (2/3) ... [2019-09-20 13:25:58,844 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8d50207 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:25:58, skipping insertion in model container [2019-09-20 13:25:58,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:25:58" (3/3) ... [2019-09-20 13:25:58,846 INFO L109 eAbstractionObserver]: Analyzing ICFG jm2006_variant.i [2019-09-20 13:25:58,856 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:25:58,863 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:25:58,880 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:25:58,908 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:25:58,909 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:25:58,909 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:25:58,909 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:25:58,909 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:25:58,909 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:25:58,909 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:25:58,910 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:25:58,925 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2019-09-20 13:25:58,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-09-20 13:25:58,934 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:25:58,935 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:25:58,937 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:25:58,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:25:58,943 INFO L82 PathProgramCache]: Analyzing trace with hash -1772153714, now seen corresponding path program 1 times [2019-09-20 13:25:58,946 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:25:58,998 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:25:58,999 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:25:58,999 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:25:58,999 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:25:59,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:25:59,414 WARN L191 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 21 [2019-09-20 13:25:59,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:25:59,563 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:25:59,564 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:25:59,564 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:25:59,569 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:25:59,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:25:59,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:25:59,590 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 7 states. [2019-09-20 13:25:59,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:25:59,863 INFO L93 Difference]: Finished difference Result 34 states and 39 transitions. [2019-09-20 13:25:59,863 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:25:59,865 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2019-09-20 13:25:59,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:25:59,876 INFO L225 Difference]: With dead ends: 34 [2019-09-20 13:25:59,876 INFO L226 Difference]: Without dead ends: 15 [2019-09-20 13:25:59,880 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2019-09-20 13:25:59,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-09-20 13:25:59,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-09-20 13:25:59,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-09-20 13:25:59,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2019-09-20 13:25:59,919 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 13 [2019-09-20 13:25:59,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:25:59,920 INFO L475 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2019-09-20 13:25:59,920 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:25:59,920 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2019-09-20 13:25:59,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-09-20 13:25:59,921 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:25:59,921 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:25:59,922 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:25:59,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:25:59,922 INFO L82 PathProgramCache]: Analyzing trace with hash -1871056931, now seen corresponding path program 1 times [2019-09-20 13:25:59,923 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:25:59,924 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:25:59,925 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:25:59,925 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:25:59,925 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:25:59,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:26:00,154 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:26:00,155 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 13:26:00,157 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-20 13:26:00,158 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 15 with the following transitions: [2019-09-20 13:26:00,159 INFO L207 CegarAbsIntRunner]: [0], [4], [8], [12], [19], [21], [27], [34], [37], [39], [45], [46], [47], [49] [2019-09-20 13:26:00,200 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-20 13:26:00,201 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-20 13:26:00,451 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-20 13:26:00,454 INFO L272 AbstractInterpreter]: Visited 14 different actions 49 times. Merged at 3 different actions 15 times. Widened at 1 different actions 3 times. Performed 153 root evaluator evaluations with a maximum evaluation depth of 5. Performed 153 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 1 fixpoints after 1 different actions. Largest state had 9 variables. [2019-09-20 13:26:00,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:26:00,460 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-20 13:26:00,460 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 13:26:00,460 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-20 13:26:00,480 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:26:00,480 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-09-20 13:26:00,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:26:00,497 INFO L256 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 22 conjunts are in the unsatisfiable core [2019-09-20 13:26:00,504 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-20 13:26:00,643 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:26:00,643 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-20 13:26:00,781 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:26:00,787 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-20 13:26:00,788 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2019-09-20 13:26:00,788 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-20 13:26:00,790 INFO L454 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-09-20 13:26:00,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-09-20 13:26:00,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2019-09-20 13:26:00,797 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 14 states. [2019-09-20 13:26:00,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:26:00,936 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2019-09-20 13:26:00,937 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:26:00,937 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 14 [2019-09-20 13:26:00,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:26:00,938 INFO L225 Difference]: With dead ends: 20 [2019-09-20 13:26:00,938 INFO L226 Difference]: Without dead ends: 16 [2019-09-20 13:26:00,939 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=82, Invalid=298, Unknown=0, NotChecked=0, Total=380 [2019-09-20 13:26:00,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-09-20 13:26:00,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-09-20 13:26:00,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-09-20 13:26:00,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2019-09-20 13:26:00,947 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 14 [2019-09-20 13:26:00,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:26:00,947 INFO L475 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2019-09-20 13:26:00,948 INFO L476 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-09-20 13:26:00,948 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2019-09-20 13:26:00,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-09-20 13:26:00,949 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:26:00,950 INFO L407 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:26:00,950 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:26:00,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:26:00,953 INFO L82 PathProgramCache]: Analyzing trace with hash -642089362, now seen corresponding path program 2 times [2019-09-20 13:26:00,953 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:26:00,956 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:26:00,956 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:26:00,956 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:26:00,956 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:26:00,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:26:01,156 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:26:01,156 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 13:26:01,157 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-20 13:26:01,157 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-09-20 13:26:01,157 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-09-20 13:26:01,157 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 13:26:01,157 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-20 13:26:01,173 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-09-20 13:26:01,173 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-09-20 13:26:01,187 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2019-09-20 13:26:01,188 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-20 13:26:01,189 WARN L254 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 28 conjunts are in the unsatisfiable core [2019-09-20 13:26:01,190 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-20 13:26:01,335 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:26:01,335 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-20 13:26:01,479 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:26:01,483 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-20 13:26:01,484 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 20 [2019-09-20 13:26:01,484 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-20 13:26:01,485 INFO L454 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-09-20 13:26:01,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-09-20 13:26:01,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=303, Unknown=0, NotChecked=0, Total=380 [2019-09-20 13:26:01,486 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 16 states. [2019-09-20 13:26:01,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:26:01,674 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2019-09-20 13:26:01,674 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-09-20 13:26:01,674 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 15 [2019-09-20 13:26:01,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:26:01,676 INFO L225 Difference]: With dead ends: 24 [2019-09-20 13:26:01,676 INFO L226 Difference]: Without dead ends: 18 [2019-09-20 13:26:01,677 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=116, Invalid=436, Unknown=0, NotChecked=0, Total=552 [2019-09-20 13:26:01,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-09-20 13:26:01,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-09-20 13:26:01,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-09-20 13:26:01,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2019-09-20 13:26:01,682 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 15 [2019-09-20 13:26:01,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:26:01,682 INFO L475 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2019-09-20 13:26:01,682 INFO L476 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-09-20 13:26:01,682 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2019-09-20 13:26:01,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-09-20 13:26:01,683 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:26:01,683 INFO L407 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:26:01,683 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:26:01,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:26:01,683 INFO L82 PathProgramCache]: Analyzing trace with hash -1276972978, now seen corresponding path program 3 times [2019-09-20 13:26:01,683 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:26:01,685 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:26:01,685 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-20 13:26:01,685 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:26:01,685 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:26:01,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:26:01,861 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-09-20 13:26:01,861 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 13:26:01,861 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-20 13:26:01,861 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-09-20 13:26:01,861 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-09-20 13:26:01,862 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 13:26:01,862 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-20 13:26:01,885 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-09-20 13:26:01,885 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-09-20 13:26:01,901 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-09-20 13:26:01,902 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-20 13:26:01,903 WARN L254 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 40 conjunts are in the unsatisfiable core [2019-09-20 13:26:01,905 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-20 13:26:02,084 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:26:02,085 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-20 13:26:02,264 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (4)] Exception during sending of exit command (exit): Broken pipe [2019-09-20 13:26:02,267 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-20 13:26:02,267 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 11] total 25 [2019-09-20 13:26:02,267 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-20 13:26:02,268 INFO L454 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-09-20 13:26:02,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-09-20 13:26:02,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=478, Unknown=0, NotChecked=0, Total=600 [2019-09-20 13:26:02,269 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 19 states. [2019-09-20 13:26:02,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:26:02,439 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2019-09-20 13:26:02,439 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-09-20 13:26:02,439 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 17 [2019-09-20 13:26:02,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:26:02,440 INFO L225 Difference]: With dead ends: 19 [2019-09-20 13:26:02,440 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:26:02,442 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 19 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=184, Invalid=686, Unknown=0, NotChecked=0, Total=870 [2019-09-20 13:26:02,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:26:02,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:26:02,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:26:02,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:26:02,443 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2019-09-20 13:26:02,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:26:02,444 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:26:02,444 INFO L476 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-09-20 13:26:02,444 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:26:02,444 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:26:02,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:26:02 BoogieIcfgContainer [2019-09-20 13:26:02,448 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:26:02,450 INFO L168 Benchmark]: Toolchain (without parser) took 4384.97 ms. Allocated memory was 141.0 MB in the beginning and 257.4 MB in the end (delta: 116.4 MB). Free memory was 89.1 MB in the beginning and 115.2 MB in the end (delta: -26.1 MB). Peak memory consumption was 90.3 MB. Max. memory is 7.1 GB. [2019-09-20 13:26:02,451 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 141.0 MB. Free memory was 107.1 MB in the beginning and 106.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:26:02,452 INFO L168 Benchmark]: CACSL2BoogieTranslator took 346.81 ms. Allocated memory is still 141.0 MB. Free memory was 88.7 MB in the beginning and 79.3 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2019-09-20 13:26:02,453 INFO L168 Benchmark]: Boogie Preprocessor took 137.50 ms. Allocated memory was 141.0 MB in the beginning and 199.2 MB in the end (delta: 58.2 MB). Free memory was 79.3 MB in the beginning and 176.9 MB in the end (delta: -97.5 MB). Peak memory consumption was 11.8 MB. Max. memory is 7.1 GB. [2019-09-20 13:26:02,454 INFO L168 Benchmark]: RCFGBuilder took 286.68 ms. Allocated memory is still 199.2 MB. Free memory was 176.9 MB in the beginning and 164.6 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.3 MB. Max. memory is 7.1 GB. [2019-09-20 13:26:02,455 INFO L168 Benchmark]: TraceAbstraction took 3609.31 ms. Allocated memory was 199.2 MB in the beginning and 257.4 MB in the end (delta: 58.2 MB). Free memory was 164.6 MB in the beginning and 115.2 MB in the end (delta: 49.4 MB). Peak memory consumption was 107.6 MB. Max. memory is 7.1 GB. [2019-09-20 13:26:02,459 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 141.0 MB. Free memory was 107.1 MB in the beginning and 106.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 346.81 ms. Allocated memory is still 141.0 MB. Free memory was 88.7 MB in the beginning and 79.3 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 137.50 ms. Allocated memory was 141.0 MB in the beginning and 199.2 MB in the end (delta: 58.2 MB). Free memory was 79.3 MB in the beginning and 176.9 MB in the end (delta: -97.5 MB). Peak memory consumption was 11.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 286.68 ms. Allocated memory is still 199.2 MB. Free memory was 176.9 MB in the beginning and 164.6 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3609.31 ms. Allocated memory was 199.2 MB in the beginning and 257.4 MB in the end (delta: 58.2 MB). Free memory was 164.6 MB in the beginning and 115.2 MB in the end (delta: 49.4 MB). Peak memory consumption was 107.6 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 21 locations, 1 error locations. SAFE Result, 3.5s OverallTime, 4 OverallIterations, 4 TraceHistogramMax, 0.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 51 SDtfs, 44 SDslu, 269 SDs, 0 SdLazy, 269 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 140 GetRequests, 60 SyntacticMatches, 4 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 411 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.3s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 105 NumberOfCodeBlocks, 103 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 141 ConstructedInterpolants, 0 QuantifiedInterpolants, 14385 SizeOfPredicates, 21 NumberOfNonLiveVariables, 159 ConjunctsInSsa, 90 ConjunctsInUnsatCore, 10 InterpolantComputations, 1 PerfectInterpolantSequences, 1/42 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...