/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ssh-simplified/s3_srvr_1b.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 16:38:35,333 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 16:38:35,335 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 16:38:35,358 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 16:38:35,359 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 16:38:35,360 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 16:38:35,361 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 16:38:35,363 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 16:38:35,364 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 16:38:35,365 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 16:38:35,366 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 16:38:35,367 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 16:38:35,367 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 16:38:35,368 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 16:38:35,369 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 16:38:35,370 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 16:38:35,371 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 16:38:35,372 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 16:38:35,373 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 16:38:35,375 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 16:38:35,379 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 16:38:35,379 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 16:38:35,380 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 16:38:35,384 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 16:38:35,386 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-22 16:38:35,396 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 [2020-08-22 16:38:35,419 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 16:38:35,419 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 16:38:35,420 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-22 16:38:35,421 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-22 16:38:35,421 INFO L138 SettingsManager]: * Use SBE=true [2020-08-22 16:38:35,421 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 16:38:35,421 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 16:38:35,421 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 16:38:35,422 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 16:38:35,422 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 16:38:35,422 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 16:38:35,422 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 16:38:35,422 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 16:38:35,422 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 16:38:35,423 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 16:38:35,423 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 16:38:35,423 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 16:38:35,423 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 16:38:35,423 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-22 16:38:35,424 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 16:38:35,424 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 16:38:35,424 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 16:38:35,424 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 16:38:35,424 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-22 16:38:35,425 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-22 16:38:35,425 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-22 16:38:35,425 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-22 16:38:35,425 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 16:38:35,425 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-22 16:38:35,425 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-08-22 16:38:35,739 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 16:38:35,760 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 16:38:35,763 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 16:38:35,765 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 16:38:35,765 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 16:38:35,766 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_srvr_1b.cil.c [2020-08-22 16:38:35,836 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff4eb10c5/26efb1bee59e45ccb125a79c704084e2/FLAG6c2315f38 [2020-08-22 16:38:36,320 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 16:38:36,320 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ssh-simplified/s3_srvr_1b.cil.c [2020-08-22 16:38:36,327 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff4eb10c5/26efb1bee59e45ccb125a79c704084e2/FLAG6c2315f38 [2020-08-22 16:38:36,640 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff4eb10c5/26efb1bee59e45ccb125a79c704084e2 [2020-08-22 16:38:36,651 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 16:38:36,654 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 16:38:36,655 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 16:38:36,655 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 16:38:36,659 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 16:38:36,660 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 04:38:36" (1/1) ... [2020-08-22 16:38:36,663 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23470449 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:38:36, skipping insertion in model container [2020-08-22 16:38:36,663 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 04:38:36" (1/1) ... [2020-08-22 16:38:36,673 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 16:38:36,698 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 16:38:36,900 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 16:38:36,903 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 16:38:36,921 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 16:38:36,934 INFO L208 MainTranslator]: Completed translation [2020-08-22 16:38:36,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:38:36 WrapperNode [2020-08-22 16:38:36,934 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 16:38:36,935 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 16:38:36,935 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 16:38:36,935 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 16:38:36,946 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:38:36" (1/1) ... [2020-08-22 16:38:36,946 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:38:36" (1/1) ... [2020-08-22 16:38:37,031 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:38:36" (1/1) ... [2020-08-22 16:38:37,032 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:38:36" (1/1) ... [2020-08-22 16:38:37,039 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:38:36" (1/1) ... [2020-08-22 16:38:37,044 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:38:36" (1/1) ... [2020-08-22 16:38:37,045 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:38:36" (1/1) ... [2020-08-22 16:38:37,046 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 16:38:37,047 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 16:38:37,047 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 16:38:37,047 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 16:38:37,048 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:38:36" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 16:38:37,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 16:38:37,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 16:38:37,111 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 16:38:37,111 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 16:38:37,111 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-08-22 16:38:37,111 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 16:38:37,111 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-08-22 16:38:37,111 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 16:38:37,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 16:38:37,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 16:38:37,325 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 16:38:37,325 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-22 16:38:37,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 04:38:37 BoogieIcfgContainer [2020-08-22 16:38:37,330 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 16:38:37,331 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 16:38:37,331 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 16:38:37,334 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 16:38:37,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 04:38:36" (1/3) ... [2020-08-22 16:38:37,335 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b190035 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 04:38:37, skipping insertion in model container [2020-08-22 16:38:37,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:38:36" (2/3) ... [2020-08-22 16:38:37,336 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b190035 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 04:38:37, skipping insertion in model container [2020-08-22 16:38:37,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 04:38:37" (3/3) ... [2020-08-22 16:38:37,337 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_srvr_1b.cil.c [2020-08-22 16:38:37,348 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-08-22 16:38:37,358 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 16:38:37,373 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 16:38:37,401 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 16:38:37,401 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 16:38:37,401 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-08-22 16:38:37,402 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 16:38:37,402 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 16:38:37,402 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 16:38:37,402 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 16:38:37,402 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 16:38:37,425 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2020-08-22 16:38:37,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-08-22 16:38:37,432 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:38:37,433 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 16:38:37,433 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:38:37,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:38:37,440 INFO L82 PathProgramCache]: Analyzing trace with hash -2134687016, now seen corresponding path program 1 times [2020-08-22 16:38:37,450 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:38:37,451 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67888955] [2020-08-22 16:38:37,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:38:37,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:38:37,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:38:37,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:38:37,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 16:38:37,618 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67888955] [2020-08-22 16:38:37,619 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 16:38:37,619 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 16:38:37,620 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025698326] [2020-08-22 16:38:37,630 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 16:38:37,631 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:38:37,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 16:38:37,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 16:38:37,656 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 3 states. [2020-08-22 16:38:37,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:38:37,741 INFO L93 Difference]: Finished difference Result 70 states and 116 transitions. [2020-08-22 16:38:37,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 16:38:37,743 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-08-22 16:38:37,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:38:37,754 INFO L225 Difference]: With dead ends: 70 [2020-08-22 16:38:37,754 INFO L226 Difference]: Without dead ends: 39 [2020-08-22 16:38:37,758 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 16:38:37,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-08-22 16:38:37,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-08-22 16:38:37,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-08-22 16:38:37,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 55 transitions. [2020-08-22 16:38:37,802 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 55 transitions. Word has length 8 [2020-08-22 16:38:37,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:38:37,803 INFO L479 AbstractCegarLoop]: Abstraction has 39 states and 55 transitions. [2020-08-22 16:38:37,803 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 16:38:37,803 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 55 transitions. [2020-08-22 16:38:37,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-08-22 16:38:37,804 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:38:37,805 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 16:38:37,805 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 16:38:37,806 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:38:37,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:38:37,806 INFO L82 PathProgramCache]: Analyzing trace with hash 1966827798, now seen corresponding path program 1 times [2020-08-22 16:38:37,807 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:38:37,807 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761526819] [2020-08-22 16:38:37,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:38:37,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:38:37,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:38:37,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:38:37,842 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 16:38:37,843 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761526819] [2020-08-22 16:38:37,843 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 16:38:37,844 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 16:38:37,844 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526319060] [2020-08-22 16:38:37,846 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 16:38:37,846 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:38:37,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 16:38:37,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 16:38:37,847 INFO L87 Difference]: Start difference. First operand 39 states and 55 transitions. Second operand 3 states. [2020-08-22 16:38:37,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:38:37,913 INFO L93 Difference]: Finished difference Result 73 states and 110 transitions. [2020-08-22 16:38:37,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 16:38:37,914 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-08-22 16:38:37,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:38:37,916 INFO L225 Difference]: With dead ends: 73 [2020-08-22 16:38:37,916 INFO L226 Difference]: Without dead ends: 55 [2020-08-22 16:38:37,917 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 16:38:37,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-08-22 16:38:37,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2020-08-22 16:38:37,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-08-22 16:38:37,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 78 transitions. [2020-08-22 16:38:37,929 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 78 transitions. Word has length 13 [2020-08-22 16:38:37,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:38:37,930 INFO L479 AbstractCegarLoop]: Abstraction has 55 states and 78 transitions. [2020-08-22 16:38:37,930 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 16:38:37,930 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 78 transitions. [2020-08-22 16:38:37,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-08-22 16:38:37,931 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:38:37,931 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 16:38:37,932 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 16:38:37,932 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:38:37,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:38:37,932 INFO L82 PathProgramCache]: Analyzing trace with hash 280007728, now seen corresponding path program 1 times [2020-08-22 16:38:37,933 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:38:37,933 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723868133] [2020-08-22 16:38:37,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:38:37,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:38:37,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:38:37,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:38:37,980 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-22 16:38:37,983 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723868133] [2020-08-22 16:38:37,983 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 16:38:37,983 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 16:38:37,984 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541803869] [2020-08-22 16:38:37,984 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 16:38:37,984 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:38:37,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 16:38:37,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 16:38:37,985 INFO L87 Difference]: Start difference. First operand 55 states and 78 transitions. Second operand 3 states. [2020-08-22 16:38:38,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:38:38,042 INFO L93 Difference]: Finished difference Result 107 states and 157 transitions. [2020-08-22 16:38:38,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 16:38:38,043 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2020-08-22 16:38:38,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:38:38,044 INFO L225 Difference]: With dead ends: 107 [2020-08-22 16:38:38,045 INFO L226 Difference]: Without dead ends: 73 [2020-08-22 16:38:38,045 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 16:38:38,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-08-22 16:38:38,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 71. [2020-08-22 16:38:38,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-08-22 16:38:38,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 103 transitions. [2020-08-22 16:38:38,059 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 103 transitions. Word has length 20 [2020-08-22 16:38:38,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:38:38,060 INFO L479 AbstractCegarLoop]: Abstraction has 71 states and 103 transitions. [2020-08-22 16:38:38,060 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 16:38:38,060 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 103 transitions. [2020-08-22 16:38:38,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-08-22 16:38:38,061 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:38:38,061 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 16:38:38,062 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 16:38:38,062 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:38:38,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:38:38,062 INFO L82 PathProgramCache]: Analyzing trace with hash 885328029, now seen corresponding path program 1 times [2020-08-22 16:38:38,063 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:38:38,063 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126099578] [2020-08-22 16:38:38,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:38:38,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:38:38,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:38:38,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:38:38,117 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-22 16:38:38,117 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126099578] [2020-08-22 16:38:38,118 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 16:38:38,118 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 16:38:38,118 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281121335] [2020-08-22 16:38:38,119 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 16:38:38,120 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:38:38,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 16:38:38,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 16:38:38,121 INFO L87 Difference]: Start difference. First operand 71 states and 103 transitions. Second operand 3 states. [2020-08-22 16:38:38,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:38:38,166 INFO L93 Difference]: Finished difference Result 141 states and 205 transitions. [2020-08-22 16:38:38,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 16:38:38,167 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2020-08-22 16:38:38,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:38:38,168 INFO L225 Difference]: With dead ends: 141 [2020-08-22 16:38:38,168 INFO L226 Difference]: Without dead ends: 61 [2020-08-22 16:38:38,169 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 16:38:38,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-08-22 16:38:38,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 59. [2020-08-22 16:38:38,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-08-22 16:38:38,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 75 transitions. [2020-08-22 16:38:38,179 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 75 transitions. Word has length 23 [2020-08-22 16:38:38,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:38:38,179 INFO L479 AbstractCegarLoop]: Abstraction has 59 states and 75 transitions. [2020-08-22 16:38:38,179 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 16:38:38,180 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 75 transitions. [2020-08-22 16:38:38,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-08-22 16:38:38,181 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:38:38,181 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 16:38:38,181 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 16:38:38,182 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:38:38,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:38:38,182 INFO L82 PathProgramCache]: Analyzing trace with hash 1155086362, now seen corresponding path program 1 times [2020-08-22 16:38:38,182 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:38:38,183 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924901192] [2020-08-22 16:38:38,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:38:38,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:38:38,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:38:38,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:38:38,257 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-08-22 16:38:38,258 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924901192] [2020-08-22 16:38:38,258 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 16:38:38,258 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 16:38:38,259 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835058000] [2020-08-22 16:38:38,259 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 16:38:38,259 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:38:38,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 16:38:38,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 16:38:38,260 INFO L87 Difference]: Start difference. First operand 59 states and 75 transitions. Second operand 3 states. [2020-08-22 16:38:38,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:38:38,278 INFO L93 Difference]: Finished difference Result 99 states and 122 transitions. [2020-08-22 16:38:38,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 16:38:38,279 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2020-08-22 16:38:38,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:38:38,279 INFO L225 Difference]: With dead ends: 99 [2020-08-22 16:38:38,280 INFO L226 Difference]: Without dead ends: 0 [2020-08-22 16:38:38,281 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 16:38:38,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-22 16:38:38,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-22 16:38:38,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-22 16:38:38,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-22 16:38:38,282 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 37 [2020-08-22 16:38:38,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:38:38,282 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-22 16:38:38,282 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 16:38:38,283 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-22 16:38:38,283 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-22 16:38:38,283 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 16:38:38,286 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-22 16:38:38,448 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-08-22 16:38:38,449 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-22 16:38:38,449 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-22 16:38:38,449 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-08-22 16:38:38,449 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-22 16:38:38,449 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-22 16:38:38,450 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 8 140) no Hoare annotation was computed. [2020-08-22 16:38:38,450 INFO L268 CegarLoopResult]: For program point L77-1(lines 53 106) no Hoare annotation was computed. [2020-08-22 16:38:38,450 INFO L268 CegarLoopResult]: For program point L69(lines 69 73) no Hoare annotation was computed. [2020-08-22 16:38:38,450 INFO L268 CegarLoopResult]: For program point L24(lines 24 127) no Hoare annotation was computed. [2020-08-22 16:38:38,450 INFO L268 CegarLoopResult]: For program point L57-1(lines 53 106) no Hoare annotation was computed. [2020-08-22 16:38:38,450 INFO L268 CegarLoopResult]: For program point L49(lines 49 108) no Hoare annotation was computed. [2020-08-22 16:38:38,450 INFO L268 CegarLoopResult]: For program point L45(lines 45 110) no Hoare annotation was computed. [2020-08-22 16:38:38,451 INFO L271 CegarLoopResult]: At program point L136(lines 8 140) the Hoare annotation is: true [2020-08-22 16:38:38,451 INFO L264 CegarLoopResult]: At program point L99(lines 17 134) the Hoare annotation is: (or (and (<= 8640 main_~s__state~0) (<= main_~blastFlag~0 3) (not (= main_~s__hit~0 0))) (<= main_~blastFlag~0 2)) [2020-08-22 16:38:38,451 INFO L268 CegarLoopResult]: For program point L95(lines 95 97) no Hoare annotation was computed. [2020-08-22 16:38:38,451 INFO L268 CegarLoopResult]: For program point L29(lines 29 124) no Hoare annotation was computed. [2020-08-22 16:38:38,451 INFO L264 CegarLoopResult]: At program point L25(lines 24 127) the Hoare annotation is: (<= main_~blastFlag~0 2) [2020-08-22 16:38:38,452 INFO L264 CegarLoopResult]: At program point L50(lines 49 108) the Hoare annotation is: (let ((.cse0 (<= 8640 main_~s__state~0))) (or (and .cse0 (<= main_~blastFlag~0 2)) (and .cse0 (<= main_~blastFlag~0 3) (not (= main_~s__hit~0 0))))) [2020-08-22 16:38:38,452 INFO L264 CegarLoopResult]: At program point L46(lines 45 110) the Hoare annotation is: (let ((.cse0 (<= 8640 main_~s__state~0))) (or (and .cse0 (<= main_~blastFlag~0 2)) (and .cse0 (<= main_~blastFlag~0 3) (not (= main_~s__hit~0 0))))) [2020-08-22 16:38:38,452 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 8 140) no Hoare annotation was computed. [2020-08-22 16:38:38,452 INFO L264 CegarLoopResult]: At program point L96(lines 8 140) the Hoare annotation is: false [2020-08-22 16:38:38,453 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 138) no Hoare annotation was computed. [2020-08-22 16:38:38,453 INFO L264 CegarLoopResult]: At program point L30(lines 29 124) the Hoare annotation is: (<= main_~blastFlag~0 2) [2020-08-22 16:38:38,453 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 8 140) the Hoare annotation is: true [2020-08-22 16:38:38,453 INFO L268 CegarLoopResult]: For program point L92-1(lines 53 106) no Hoare annotation was computed. [2020-08-22 16:38:38,453 INFO L268 CegarLoopResult]: For program point L88-1(lines 53 106) no Hoare annotation was computed. [2020-08-22 16:38:38,453 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-08-22 16:38:38,473 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 04:38:38 BoogieIcfgContainer [2020-08-22 16:38:38,473 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 16:38:38,476 INFO L168 Benchmark]: Toolchain (without parser) took 1821.74 ms. Allocated memory was 145.8 MB in the beginning and 233.3 MB in the end (delta: 87.6 MB). Free memory was 102.0 MB in the beginning and 200.1 MB in the end (delta: -98.1 MB). Peak memory consumption was 77.1 MB. Max. memory is 7.1 GB. [2020-08-22 16:38:38,477 INFO L168 Benchmark]: CDTParser took 1.33 ms. Allocated memory is still 145.8 MB. Free memory was 120.4 MB in the beginning and 120.0 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. [2020-08-22 16:38:38,478 INFO L168 Benchmark]: CACSL2BoogieTranslator took 279.61 ms. Allocated memory is still 145.8 MB. Free memory was 102.0 MB in the beginning and 91.6 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2020-08-22 16:38:38,479 INFO L168 Benchmark]: Boogie Preprocessor took 111.52 ms. Allocated memory was 145.8 MB in the beginning and 200.8 MB in the end (delta: 55.1 MB). Free memory was 91.6 MB in the beginning and 179.2 MB in the end (delta: -87.6 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2020-08-22 16:38:38,480 INFO L168 Benchmark]: RCFGBuilder took 282.93 ms. Allocated memory is still 200.8 MB. Free memory was 179.2 MB in the beginning and 164.6 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 7.1 GB. [2020-08-22 16:38:38,481 INFO L168 Benchmark]: TraceAbstraction took 1142.46 ms. Allocated memory was 200.8 MB in the beginning and 233.3 MB in the end (delta: 32.5 MB). Free memory was 163.6 MB in the beginning and 200.1 MB in the end (delta: -36.5 MB). Peak memory consumption was 83.6 MB. Max. memory is 7.1 GB. [2020-08-22 16:38:38,485 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.33 ms. Allocated memory is still 145.8 MB. Free memory was 120.4 MB in the beginning and 120.0 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 279.61 ms. Allocated memory is still 145.8 MB. Free memory was 102.0 MB in the beginning and 91.6 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 111.52 ms. Allocated memory was 145.8 MB in the beginning and 200.8 MB in the end (delta: 55.1 MB). Free memory was 91.6 MB in the beginning and 179.2 MB in the end (delta: -87.6 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 282.93 ms. Allocated memory is still 200.8 MB. Free memory was 179.2 MB in the beginning and 164.6 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1142.46 ms. Allocated memory was 200.8 MB in the beginning and 233.3 MB in the end (delta: 32.5 MB). Free memory was 163.6 MB in the beginning and 200.1 MB in the end (delta: -36.5 MB). Peak memory consumption was 83.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 138]: 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: 49]: Loop Invariant Derived loop invariant: (8640 <= s__state && blastFlag <= 2) || ((8640 <= s__state && blastFlag <= 3) && !(s__hit == 0)) - InvariantResult [Line: 8]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: ((8640 <= s__state && blastFlag <= 3) && !(s__hit == 0)) || blastFlag <= 2 - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 45]: Loop Invariant Derived loop invariant: (8640 <= s__state && blastFlag <= 2) || ((8640 <= s__state && blastFlag <= 3) && !(s__hit == 0)) - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 8]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 28 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.8s, OverallIterations: 5, TraceHistogramMax: 4, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 147 SDtfs, 81 SDslu, 98 SDs, 0 SdLazy, 77 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=71occurred 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, 5 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 11 PreInvPairs, 31 NumberOfFragments, 65 HoareAnnotationTreeSize, 11 FomulaSimplifications, 123 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 18 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 101 NumberOfCodeBlocks, 101 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 96 ConstructedInterpolants, 0 QuantifiedInterpolants, 4434 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 40/40 InterpolantCoveringCapability, 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...