/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 --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/psyco/psyco_security.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 17:58:27,733 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 17:58:27,735 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 17:58:27,748 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 17:58:27,749 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 17:58:27,750 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 17:58:27,751 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 17:58:27,753 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 17:58:27,755 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 17:58:27,756 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 17:58:27,757 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 17:58:27,758 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 17:58:27,758 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 17:58:27,760 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 17:58:27,761 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 17:58:27,762 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 17:58:27,763 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 17:58:27,764 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 17:58:27,766 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 17:58:27,768 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 17:58:27,770 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 17:58:27,771 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 17:58:27,772 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 17:58:27,773 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 17:58:27,776 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-17 17:58:27,784 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 17:58:27,785 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 17:58:27,786 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 17:58:27,787 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-17 17:58:27,797 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 17:58:27,797 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 17:58:27,798 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 17:58:27,798 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 17:58:27,799 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 17:58:27,799 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 17:58:27,799 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 17:58:27,799 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 17:58:27,800 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 17:58:27,800 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 17:58:27,800 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 17:58:27,800 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 17:58:27,800 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 17:58:27,801 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 17:58:27,801 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 17:58:27,801 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-17 17:58:27,801 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 17:58:27,801 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 17:58:27,802 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 17:58:27,802 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 17:58:27,802 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-17 17:58:27,802 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 17:58:27,802 INFO L138 SettingsManager]: * Use separate solver for trace checks=false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-07-17 17:58:28,092 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 17:58:28,106 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 17:58:28,109 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 17:58:28,111 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 17:58:28,111 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 17:58:28,112 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/psyco/psyco_security.c [2020-07-17 17:58:28,183 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f637ec4a8/ccc41cb2ceff4ca1a7e490444eaa5df9/FLAGf79eec7ea [2020-07-17 17:58:28,680 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 17:58:28,681 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/psyco/psyco_security.c [2020-07-17 17:58:28,694 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f637ec4a8/ccc41cb2ceff4ca1a7e490444eaa5df9/FLAGf79eec7ea [2020-07-17 17:58:29,064 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f637ec4a8/ccc41cb2ceff4ca1a7e490444eaa5df9 [2020-07-17 17:58:29,074 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 17:58:29,078 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 17:58:29,079 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 17:58:29,079 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 17:58:29,083 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 17:58:29,084 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 05:58:29" (1/1) ... [2020-07-17 17:58:29,087 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d23193b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:58:29, skipping insertion in model container [2020-07-17 17:58:29,088 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 05:58:29" (1/1) ... [2020-07-17 17:58:29,096 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 17:58:29,126 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 17:58:29,322 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 17:58:29,327 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 17:58:29,363 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 17:58:29,464 INFO L208 MainTranslator]: Completed translation [2020-07-17 17:58:29,465 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:58:29 WrapperNode [2020-07-17 17:58:29,465 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 17:58:29,466 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 17:58:29,466 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 17:58:29,466 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 17:58:29,481 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:58:29" (1/1) ... [2020-07-17 17:58:29,481 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:58:29" (1/1) ... [2020-07-17 17:58:29,489 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:58:29" (1/1) ... [2020-07-17 17:58:29,489 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:58:29" (1/1) ... [2020-07-17 17:58:29,498 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:58:29" (1/1) ... [2020-07-17 17:58:29,509 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:58:29" (1/1) ... [2020-07-17 17:58:29,511 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:58:29" (1/1) ... [2020-07-17 17:58:29,515 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 17:58:29,516 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 17:58:29,516 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 17:58:29,516 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 17:58:29,517 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:58:29" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 17:58:29,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 17:58:29,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 17:58:29,582 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 17:58:29,583 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-17 17:58:29,584 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 17:58:29,584 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 17:58:29,584 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 17:58:29,585 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 17:58:30,222 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 17:58:30,222 INFO L295 CfgBuilder]: Removed 18 assume(true) statements. [2020-07-17 17:58:30,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 05:58:30 BoogieIcfgContainer [2020-07-17 17:58:30,237 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 17:58:30,240 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 17:58:30,240 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 17:58:30,243 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 17:58:30,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 05:58:29" (1/3) ... [2020-07-17 17:58:30,245 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3940362c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 05:58:30, skipping insertion in model container [2020-07-17 17:58:30,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:58:29" (2/3) ... [2020-07-17 17:58:30,246 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3940362c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 05:58:30, skipping insertion in model container [2020-07-17 17:58:30,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 05:58:30" (3/3) ... [2020-07-17 17:58:30,248 INFO L109 eAbstractionObserver]: Analyzing ICFG psyco_security.c [2020-07-17 17:58:30,266 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-17 17:58:30,275 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 17:58:30,290 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 17:58:30,316 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 17:58:30,316 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 17:58:30,317 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-07-17 17:58:30,317 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 17:58:30,317 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 17:58:30,317 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 17:58:30,318 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 17:58:30,318 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 17:58:30,339 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states. [2020-07-17 17:58:30,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-07-17 17:58:30,352 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 17:58:30,353 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 17:58:30,353 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 17:58:30,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 17:58:30,360 INFO L82 PathProgramCache]: Analyzing trace with hash -1507146259, now seen corresponding path program 1 times [2020-07-17 17:58:30,367 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 17:58:30,367 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [9882027] [2020-07-17 17:58:30,368 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 17:58:30,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:58:30,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:58:30,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 17:58:30,552 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [9882027] [2020-07-17 17:58:30,555 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 17:58:30,555 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-17 17:58:30,556 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130599211] [2020-07-17 17:58:30,562 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-17 17:58:30,563 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 17:58:30,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-17 17:58:30,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 17:58:30,582 INFO L87 Difference]: Start difference. First operand 191 states. Second operand 3 states. [2020-07-17 17:58:30,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 17:58:30,732 INFO L93 Difference]: Finished difference Result 369 states and 507 transitions. [2020-07-17 17:58:30,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-17 17:58:30,735 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-07-17 17:58:30,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 17:58:30,755 INFO L225 Difference]: With dead ends: 369 [2020-07-17 17:58:30,756 INFO L226 Difference]: Without dead ends: 178 [2020-07-17 17:58:30,761 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 17:58:30,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2020-07-17 17:58:30,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 178. [2020-07-17 17:58:30,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2020-07-17 17:58:30,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 213 transitions. [2020-07-17 17:58:30,849 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 213 transitions. Word has length 22 [2020-07-17 17:58:30,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 17:58:30,850 INFO L479 AbstractCegarLoop]: Abstraction has 178 states and 213 transitions. [2020-07-17 17:58:30,851 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-17 17:58:30,851 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 213 transitions. [2020-07-17 17:58:30,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-07-17 17:58:30,852 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 17:58:30,853 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 17:58:30,853 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 17:58:30,853 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 17:58:30,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 17:58:30,854 INFO L82 PathProgramCache]: Analyzing trace with hash -946920198, now seen corresponding path program 1 times [2020-07-17 17:58:30,854 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 17:58:30,855 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1128789282] [2020-07-17 17:58:30,855 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 17:58:30,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:58:30,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:58:30,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 17:58:30,932 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1128789282] [2020-07-17 17:58:30,933 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 17:58:30,933 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-17 17:58:30,933 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460120668] [2020-07-17 17:58:30,935 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-17 17:58:30,936 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 17:58:30,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-17 17:58:30,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-17 17:58:30,937 INFO L87 Difference]: Start difference. First operand 178 states and 213 transitions. Second operand 4 states. [2020-07-17 17:58:31,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 17:58:31,461 INFO L93 Difference]: Finished difference Result 346 states and 417 transitions. [2020-07-17 17:58:31,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-17 17:58:31,462 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2020-07-17 17:58:31,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 17:58:31,464 INFO L225 Difference]: With dead ends: 346 [2020-07-17 17:58:31,464 INFO L226 Difference]: Without dead ends: 181 [2020-07-17 17:58:31,466 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-17 17:58:31,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2020-07-17 17:58:31,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2020-07-17 17:58:31,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2020-07-17 17:58:31,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 216 transitions. [2020-07-17 17:58:31,501 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 216 transitions. Word has length 23 [2020-07-17 17:58:31,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 17:58:31,501 INFO L479 AbstractCegarLoop]: Abstraction has 181 states and 216 transitions. [2020-07-17 17:58:31,501 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-17 17:58:31,501 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 216 transitions. [2020-07-17 17:58:31,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-07-17 17:58:31,503 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 17:58:31,503 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 17:58:31,503 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 17:58:31,504 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 17:58:31,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 17:58:31,504 INFO L82 PathProgramCache]: Analyzing trace with hash 1840173547, now seen corresponding path program 1 times [2020-07-17 17:58:31,504 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 17:58:31,505 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1118983081] [2020-07-17 17:58:31,505 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 17:58:31,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:58:31,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:58:31,568 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 17:58:31,568 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1118983081] [2020-07-17 17:58:31,569 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 17:58:31,569 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-17 17:58:31,569 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711000325] [2020-07-17 17:58:31,570 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-17 17:58:31,570 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 17:58:31,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-17 17:58:31,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-17 17:58:31,571 INFO L87 Difference]: Start difference. First operand 181 states and 216 transitions. Second operand 4 states. [2020-07-17 17:58:31,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 17:58:31,693 INFO L93 Difference]: Finished difference Result 330 states and 397 transitions. [2020-07-17 17:58:31,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-17 17:58:31,694 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2020-07-17 17:58:31,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 17:58:31,696 INFO L225 Difference]: With dead ends: 330 [2020-07-17 17:58:31,696 INFO L226 Difference]: Without dead ends: 163 [2020-07-17 17:58:31,698 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-17 17:58:31,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2020-07-17 17:58:31,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2020-07-17 17:58:31,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2020-07-17 17:58:31,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 193 transitions. [2020-07-17 17:58:31,726 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 193 transitions. Word has length 32 [2020-07-17 17:58:31,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 17:58:31,726 INFO L479 AbstractCegarLoop]: Abstraction has 163 states and 193 transitions. [2020-07-17 17:58:31,727 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-17 17:58:31,727 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 193 transitions. [2020-07-17 17:58:31,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-07-17 17:58:31,729 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 17:58:31,729 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 17:58:31,729 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-17 17:58:31,730 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 17:58:31,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 17:58:31,730 INFO L82 PathProgramCache]: Analyzing trace with hash 576498569, now seen corresponding path program 1 times [2020-07-17 17:58:31,730 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 17:58:31,731 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1576483737] [2020-07-17 17:58:31,731 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 17:58:31,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:58:31,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:58:31,793 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 17:58:31,793 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1576483737] [2020-07-17 17:58:31,794 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 17:58:31,794 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-17 17:58:31,794 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871891623] [2020-07-17 17:58:31,795 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-17 17:58:31,795 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 17:58:31,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-17 17:58:31,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-17 17:58:31,796 INFO L87 Difference]: Start difference. First operand 163 states and 193 transitions. Second operand 4 states. [2020-07-17 17:58:32,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 17:58:32,221 INFO L93 Difference]: Finished difference Result 429 states and 517 transitions. [2020-07-17 17:58:32,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-17 17:58:32,221 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 39 [2020-07-17 17:58:32,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 17:58:32,224 INFO L225 Difference]: With dead ends: 429 [2020-07-17 17:58:32,224 INFO L226 Difference]: Without dead ends: 275 [2020-07-17 17:58:32,225 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-17 17:58:32,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2020-07-17 17:58:32,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 243. [2020-07-17 17:58:32,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 243 states. [2020-07-17 17:58:32,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 288 transitions. [2020-07-17 17:58:32,260 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 288 transitions. Word has length 39 [2020-07-17 17:58:32,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 17:58:32,261 INFO L479 AbstractCegarLoop]: Abstraction has 243 states and 288 transitions. [2020-07-17 17:58:32,261 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-17 17:58:32,261 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 288 transitions. [2020-07-17 17:58:32,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-07-17 17:58:32,263 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 17:58:32,263 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 17:58:32,264 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-17 17:58:32,264 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 17:58:32,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 17:58:32,264 INFO L82 PathProgramCache]: Analyzing trace with hash -47890514, now seen corresponding path program 1 times [2020-07-17 17:58:32,265 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 17:58:32,265 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1598254875] [2020-07-17 17:58:32,265 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 17:58:32,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:58:32,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:58:32,313 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 17:58:32,313 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1598254875] [2020-07-17 17:58:32,314 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 17:58:32,314 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-17 17:58:32,314 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603130282] [2020-07-17 17:58:32,314 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-17 17:58:32,315 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 17:58:32,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-17 17:58:32,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-17 17:58:32,315 INFO L87 Difference]: Start difference. First operand 243 states and 288 transitions. Second operand 4 states. [2020-07-17 17:58:32,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 17:58:32,599 INFO L93 Difference]: Finished difference Result 407 states and 484 transitions. [2020-07-17 17:58:32,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-17 17:58:32,600 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 40 [2020-07-17 17:58:32,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 17:58:32,602 INFO L225 Difference]: With dead ends: 407 [2020-07-17 17:58:32,602 INFO L226 Difference]: Without dead ends: 188 [2020-07-17 17:58:32,603 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-17 17:58:32,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2020-07-17 17:58:32,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 186. [2020-07-17 17:58:32,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2020-07-17 17:58:32,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 218 transitions. [2020-07-17 17:58:32,630 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 218 transitions. Word has length 40 [2020-07-17 17:58:32,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 17:58:32,630 INFO L479 AbstractCegarLoop]: Abstraction has 186 states and 218 transitions. [2020-07-17 17:58:32,630 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-17 17:58:32,631 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 218 transitions. [2020-07-17 17:58:32,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-07-17 17:58:32,633 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 17:58:32,633 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 17:58:32,633 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-17 17:58:32,633 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 17:58:32,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 17:58:32,634 INFO L82 PathProgramCache]: Analyzing trace with hash 946604760, now seen corresponding path program 1 times [2020-07-17 17:58:32,634 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 17:58:32,634 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1362424036] [2020-07-17 17:58:32,634 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 17:58:32,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:58:32,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:58:32,700 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-07-17 17:58:32,701 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1362424036] [2020-07-17 17:58:32,701 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 17:58:32,702 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-17 17:58:32,702 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077826501] [2020-07-17 17:58:32,702 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-17 17:58:32,703 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 17:58:32,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-17 17:58:32,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-17 17:58:32,703 INFO L87 Difference]: Start difference. First operand 186 states and 218 transitions. Second operand 4 states. [2020-07-17 17:58:32,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 17:58:32,851 INFO L93 Difference]: Finished difference Result 301 states and 357 transitions. [2020-07-17 17:58:32,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-17 17:58:32,852 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 50 [2020-07-17 17:58:32,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 17:58:32,854 INFO L225 Difference]: With dead ends: 301 [2020-07-17 17:58:32,854 INFO L226 Difference]: Without dead ends: 158 [2020-07-17 17:58:32,855 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-17 17:58:32,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-07-17 17:58:32,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2020-07-17 17:58:32,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2020-07-17 17:58:32,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 184 transitions. [2020-07-17 17:58:32,874 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 184 transitions. Word has length 50 [2020-07-17 17:58:32,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 17:58:32,875 INFO L479 AbstractCegarLoop]: Abstraction has 158 states and 184 transitions. [2020-07-17 17:58:32,875 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-17 17:58:32,875 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 184 transitions. [2020-07-17 17:58:32,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-07-17 17:58:32,877 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 17:58:32,877 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 17:58:32,877 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-17 17:58:32,878 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 17:58:32,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 17:58:32,878 INFO L82 PathProgramCache]: Analyzing trace with hash -1459500481, now seen corresponding path program 1 times [2020-07-17 17:58:32,878 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 17:58:32,879 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [135954279] [2020-07-17 17:58:32,879 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 17:58:32,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:58:32,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:58:32,950 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-07-17 17:58:32,951 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [135954279] [2020-07-17 17:58:32,951 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 17:58:32,951 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-17 17:58:32,951 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509672478] [2020-07-17 17:58:32,952 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-17 17:58:32,952 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 17:58:32,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-17 17:58:32,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-17 17:58:32,954 INFO L87 Difference]: Start difference. First operand 158 states and 184 transitions. Second operand 4 states. [2020-07-17 17:58:33,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 17:58:33,334 INFO L93 Difference]: Finished difference Result 356 states and 426 transitions. [2020-07-17 17:58:33,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-17 17:58:33,334 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2020-07-17 17:58:33,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 17:58:33,336 INFO L225 Difference]: With dead ends: 356 [2020-07-17 17:58:33,336 INFO L226 Difference]: Without dead ends: 248 [2020-07-17 17:58:33,338 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-17 17:58:33,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2020-07-17 17:58:33,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 223. [2020-07-17 17:58:33,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 223 states. [2020-07-17 17:58:33,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 262 transitions. [2020-07-17 17:58:33,365 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 262 transitions. Word has length 51 [2020-07-17 17:58:33,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 17:58:33,368 INFO L479 AbstractCegarLoop]: Abstraction has 223 states and 262 transitions. [2020-07-17 17:58:33,368 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-17 17:58:33,368 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 262 transitions. [2020-07-17 17:58:33,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-17 17:58:33,372 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 17:58:33,372 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 17:58:33,372 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-17 17:58:33,373 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 17:58:33,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 17:58:33,373 INFO L82 PathProgramCache]: Analyzing trace with hash -389028907, now seen corresponding path program 1 times [2020-07-17 17:58:33,373 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 17:58:33,375 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1088261542] [2020-07-17 17:58:33,375 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 17:58:33,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:58:33,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:58:33,472 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-07-17 17:58:33,473 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1088261542] [2020-07-17 17:58:33,473 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 17:58:33,473 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-17 17:58:33,474 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823774365] [2020-07-17 17:58:33,474 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-17 17:58:33,474 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 17:58:33,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-17 17:58:33,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-17 17:58:33,475 INFO L87 Difference]: Start difference. First operand 223 states and 262 transitions. Second operand 4 states. [2020-07-17 17:58:33,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 17:58:33,725 INFO L93 Difference]: Finished difference Result 369 states and 437 transitions. [2020-07-17 17:58:33,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-17 17:58:33,726 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 52 [2020-07-17 17:58:33,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 17:58:33,728 INFO L225 Difference]: With dead ends: 369 [2020-07-17 17:58:33,728 INFO L226 Difference]: Without dead ends: 199 [2020-07-17 17:58:33,729 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-17 17:58:33,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2020-07-17 17:58:33,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 197. [2020-07-17 17:58:33,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2020-07-17 17:58:33,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 228 transitions. [2020-07-17 17:58:33,751 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 228 transitions. Word has length 52 [2020-07-17 17:58:33,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 17:58:33,751 INFO L479 AbstractCegarLoop]: Abstraction has 197 states and 228 transitions. [2020-07-17 17:58:33,751 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-17 17:58:33,751 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 228 transitions. [2020-07-17 17:58:33,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-07-17 17:58:33,752 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 17:58:33,752 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 17:58:33,753 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-17 17:58:33,753 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 17:58:33,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 17:58:33,753 INFO L82 PathProgramCache]: Analyzing trace with hash 910217494, now seen corresponding path program 1 times [2020-07-17 17:58:33,754 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 17:58:33,754 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1322364909] [2020-07-17 17:58:33,754 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 17:58:33,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:58:33,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:58:33,812 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-07-17 17:58:33,813 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1322364909] [2020-07-17 17:58:33,813 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 17:58:33,814 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-17 17:58:33,819 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157125054] [2020-07-17 17:58:33,819 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-17 17:58:33,820 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 17:58:33,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-17 17:58:33,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-17 17:58:33,822 INFO L87 Difference]: Start difference. First operand 197 states and 228 transitions. Second operand 4 states. [2020-07-17 17:58:34,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 17:58:34,012 INFO L93 Difference]: Finished difference Result 300 states and 348 transitions. [2020-07-17 17:58:34,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-17 17:58:34,012 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 54 [2020-07-17 17:58:34,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 17:58:34,014 INFO L225 Difference]: With dead ends: 300 [2020-07-17 17:58:34,014 INFO L226 Difference]: Without dead ends: 156 [2020-07-17 17:58:34,015 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-17 17:58:34,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2020-07-17 17:58:34,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2020-07-17 17:58:34,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2020-07-17 17:58:34,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 175 transitions. [2020-07-17 17:58:34,035 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 175 transitions. Word has length 54 [2020-07-17 17:58:34,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 17:58:34,036 INFO L479 AbstractCegarLoop]: Abstraction has 156 states and 175 transitions. [2020-07-17 17:58:34,036 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-17 17:58:34,037 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 175 transitions. [2020-07-17 17:58:34,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-07-17 17:58:34,038 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 17:58:34,039 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 17:58:34,039 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-17 17:58:34,039 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 17:58:34,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 17:58:34,040 INFO L82 PathProgramCache]: Analyzing trace with hash 57784286, now seen corresponding path program 1 times [2020-07-17 17:58:34,040 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 17:58:34,040 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1535161426] [2020-07-17 17:58:34,040 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 17:58:34,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:58:34,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:58:34,135 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-07-17 17:58:34,136 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1535161426] [2020-07-17 17:58:34,136 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 17:58:34,136 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-17 17:58:34,136 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897457582] [2020-07-17 17:58:34,138 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-17 17:58:34,139 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 17:58:34,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-17 17:58:34,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-17 17:58:34,142 INFO L87 Difference]: Start difference. First operand 156 states and 175 transitions. Second operand 4 states. [2020-07-17 17:58:34,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 17:58:34,366 INFO L93 Difference]: Finished difference Result 158 states and 176 transitions. [2020-07-17 17:58:34,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-17 17:58:34,368 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 55 [2020-07-17 17:58:34,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 17:58:34,371 INFO L225 Difference]: With dead ends: 158 [2020-07-17 17:58:34,371 INFO L226 Difference]: Without dead ends: 153 [2020-07-17 17:58:34,372 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-17 17:58:34,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2020-07-17 17:58:34,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2020-07-17 17:58:34,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2020-07-17 17:58:34,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 171 transitions. [2020-07-17 17:58:34,404 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 171 transitions. Word has length 55 [2020-07-17 17:58:34,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 17:58:34,405 INFO L479 AbstractCegarLoop]: Abstraction has 153 states and 171 transitions. [2020-07-17 17:58:34,405 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-17 17:58:34,405 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 171 transitions. [2020-07-17 17:58:34,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-07-17 17:58:34,406 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 17:58:34,406 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 17:58:34,406 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-17 17:58:34,406 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 17:58:34,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 17:58:34,407 INFO L82 PathProgramCache]: Analyzing trace with hash 1987485698, now seen corresponding path program 1 times [2020-07-17 17:58:34,408 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 17:58:34,409 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [206047086] [2020-07-17 17:58:34,409 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 17:58:34,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:58:34,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:58:34,477 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-07-17 17:58:34,477 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [206047086] [2020-07-17 17:58:34,477 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 17:58:34,477 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-17 17:58:34,478 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774926646] [2020-07-17 17:58:34,478 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-17 17:58:34,479 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 17:58:34,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-17 17:58:34,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-17 17:58:34,479 INFO L87 Difference]: Start difference. First operand 153 states and 171 transitions. Second operand 4 states. [2020-07-17 17:58:34,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 17:58:34,683 INFO L93 Difference]: Finished difference Result 243 states and 275 transitions. [2020-07-17 17:58:34,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-17 17:58:34,683 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 58 [2020-07-17 17:58:34,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 17:58:34,684 INFO L225 Difference]: With dead ends: 243 [2020-07-17 17:58:34,684 INFO L226 Difference]: Without dead ends: 0 [2020-07-17 17:58:34,685 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-17 17:58:34,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-17 17:58:34,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-17 17:58:34,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-17 17:58:34,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-17 17:58:34,686 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 58 [2020-07-17 17:58:34,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 17:58:34,686 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-17 17:58:34,687 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-17 17:58:34,687 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-17 17:58:34,687 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 17:58:34,687 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-07-17 17:58:34,689 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-17 17:58:37,713 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-07-17 17:58:37,714 INFO L271 CegarLoopResult]: At program point L10(line 10) the Hoare annotation is: true [2020-07-17 17:58:37,714 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~m_initSign~0 |old(~m_initSign~0)|) (= ~m_verify~0 |old(~m_verify~0)|) (= ~m_Signature~0 |old(~m_Signature~0)|) (= ~m_sign~0 |old(~m_sign~0)|) (= ~m_initVerify~0 |old(~m_initVerify~0)|) (= ~m_update~0 |old(~m_update~0)|)) [2020-07-17 17:58:37,714 INFO L271 CegarLoopResult]: At program point L9(line 9) the Hoare annotation is: true [2020-07-17 17:58:37,715 INFO L271 CegarLoopResult]: At program point L8(line 8) the Hoare annotation is: true [2020-07-17 17:58:37,715 INFO L271 CegarLoopResult]: At program point L7(line 7) the Hoare annotation is: true [2020-07-17 17:58:37,715 INFO L271 CegarLoopResult]: At program point L6(line 6) the Hoare annotation is: true [2020-07-17 17:58:37,715 INFO L271 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-07-17 17:58:37,715 INFO L271 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-07-17 17:58:37,716 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-17 17:58:37,716 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-17 17:58:37,716 INFO L271 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-07-17 17:58:37,716 INFO L271 CegarLoopResult]: At program point mainEXIT(lines 13 390) the Hoare annotation is: true [2020-07-17 17:58:37,716 INFO L264 CegarLoopResult]: At program point L366(lines 366 377) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2020-07-17 17:58:37,716 INFO L264 CegarLoopResult]: At program point L300(line 300) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2020-07-17 17:58:37,717 INFO L264 CegarLoopResult]: At program point L300-1(lines 300 315) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2020-07-17 17:58:37,717 INFO L264 CegarLoopResult]: At program point L234(lines 234 245) the Hoare annotation is: (or (and (<= 2 main_~q~0) (<= main_~this_state~0 0)) (and (<= 3 main_~q~0) (= 2 main_~this_state~0))) [2020-07-17 17:58:37,717 INFO L264 CegarLoopResult]: At program point L300-2(line 300) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2020-07-17 17:58:37,717 INFO L264 CegarLoopResult]: At program point L300-3(line 300) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2020-07-17 17:58:37,717 INFO L264 CegarLoopResult]: At program point L102(lines 102 113) the Hoare annotation is: (= 2 main_~q~0) [2020-07-17 17:58:37,717 INFO L264 CegarLoopResult]: At program point L334(lines 334 345) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2020-07-17 17:58:37,718 INFO L264 CegarLoopResult]: At program point L268(line 268) the Hoare annotation is: false [2020-07-17 17:58:37,718 INFO L264 CegarLoopResult]: At program point L202(lines 202 213) the Hoare annotation is: (= 3 main_~q~0) [2020-07-17 17:58:37,718 INFO L264 CegarLoopResult]: At program point L70(lines 70 72) the Hoare annotation is: false [2020-07-17 17:58:37,718 INFO L264 CegarLoopResult]: At program point L368(line 368) the Hoare annotation is: false [2020-07-17 17:58:37,718 INFO L264 CegarLoopResult]: At program point L302(lines 302 313) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2020-07-17 17:58:37,718 INFO L271 CegarLoopResult]: At program point mainFINAL(lines 13 390) the Hoare annotation is: true [2020-07-17 17:58:37,719 INFO L264 CegarLoopResult]: At program point L170(lines 170 172) the Hoare annotation is: (and (<= 2 main_~q~0) (<= main_~this_state~0 0)) [2020-07-17 17:58:37,719 INFO L264 CegarLoopResult]: At program point L38(line 38) the Hoare annotation is: (and (= 0 main_~q~0) (<= main_~this_state~0 0)) [2020-07-17 17:58:37,719 INFO L264 CegarLoopResult]: At program point L270(lines 270 272) the Hoare annotation is: false [2020-07-17 17:58:37,719 INFO L264 CegarLoopResult]: At program point L138(lines 138 140) the Hoare annotation is: (and (<= 2 main_~q~0) (<= main_~this_state~0 0)) [2020-07-17 17:58:37,719 INFO L264 CegarLoopResult]: At program point L370(lines 370 372) the Hoare annotation is: false [2020-07-17 17:58:37,720 INFO L264 CegarLoopResult]: At program point L238(lines 238 240) the Hoare annotation is: (or (and (<= 2 main_~q~0) (<= main_~this_state~0 0)) (and (<= 3 main_~q~0) (= 2 main_~this_state~0))) [2020-07-17 17:58:37,720 INFO L264 CegarLoopResult]: At program point L106(lines 106 108) the Hoare annotation is: (= 2 main_~q~0) [2020-07-17 17:58:37,720 INFO L264 CegarLoopResult]: At program point L40(line 40) the Hoare annotation is: (and (<= main_~this_state~0 0) (= 2 main_~q~0)) [2020-07-17 17:58:37,720 INFO L264 CegarLoopResult]: At program point L371(lines 13 390) the Hoare annotation is: false [2020-07-17 17:58:37,720 INFO L264 CegarLoopResult]: At program point L338(lines 338 340) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2020-07-17 17:58:37,720 INFO L264 CegarLoopResult]: At program point L206(lines 206 208) the Hoare annotation is: (= 3 main_~q~0) [2020-07-17 17:58:37,721 INFO L271 CegarLoopResult]: At program point L74(line 74) the Hoare annotation is: true [2020-07-17 17:58:37,721 INFO L264 CegarLoopResult]: At program point L306(lines 306 308) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2020-07-17 17:58:37,721 INFO L271 CegarLoopResult]: At program point L174(line 174) the Hoare annotation is: true [2020-07-17 17:58:37,721 INFO L264 CegarLoopResult]: At program point L274(line 274) the Hoare annotation is: false [2020-07-17 17:58:37,721 INFO L271 CegarLoopResult]: At program point L142(line 142) the Hoare annotation is: true [2020-07-17 17:58:37,721 INFO L264 CegarLoopResult]: At program point L374(line 374) the Hoare annotation is: false [2020-07-17 17:58:37,722 INFO L271 CegarLoopResult]: At program point L242(line 242) the Hoare annotation is: true [2020-07-17 17:58:37,722 INFO L264 CegarLoopResult]: At program point L110(line 110) the Hoare annotation is: (= 2 main_~q~0) [2020-07-17 17:58:37,722 INFO L264 CegarLoopResult]: At program point L342(line 342) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2020-07-17 17:58:37,722 INFO L264 CegarLoopResult]: At program point L276(line 276) the Hoare annotation is: false [2020-07-17 17:58:37,722 INFO L264 CegarLoopResult]: At program point L210(line 210) the Hoare annotation is: (= 3 main_~q~0) [2020-07-17 17:58:37,722 INFO L264 CegarLoopResult]: At program point L376(line 376) the Hoare annotation is: false [2020-07-17 17:58:37,723 INFO L264 CegarLoopResult]: At program point L310(line 310) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2020-07-17 17:58:37,723 INFO L264 CegarLoopResult]: At program point L112(line 112) the Hoare annotation is: (= 3 main_~q~0) [2020-07-17 17:58:37,723 INFO L264 CegarLoopResult]: At program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 389) the Hoare annotation is: false [2020-07-17 17:58:37,723 INFO L264 CegarLoopResult]: At program point L344(line 344) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2020-07-17 17:58:37,723 INFO L264 CegarLoopResult]: At program point L212(line 212) the Hoare annotation is: (<= 4 main_~q~0) [2020-07-17 17:58:37,724 INFO L264 CegarLoopResult]: At program point L80(line 80) the Hoare annotation is: false [2020-07-17 17:58:37,724 INFO L264 CegarLoopResult]: At program point L47(lines 47 98) the Hoare annotation is: (or (and (= 3 main_~q~0) (= 2 main_~this_state~0)) (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) (and (<= main_~this_state~0 0) (= 2 main_~q~0))) [2020-07-17 17:58:37,724 INFO L264 CegarLoopResult]: At program point L80-1(lines 80 95) the Hoare annotation is: false [2020-07-17 17:58:37,724 INFO L264 CegarLoopResult]: At program point L80-2(line 80) the Hoare annotation is: false [2020-07-17 17:58:37,724 INFO L264 CegarLoopResult]: At program point L80-3(line 80) the Hoare annotation is: false [2020-07-17 17:58:37,724 INFO L264 CegarLoopResult]: At program point L312(line 312) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2020-07-17 17:58:37,724 INFO L264 CegarLoopResult]: At program point L48(line 48) the Hoare annotation is: false [2020-07-17 17:58:37,725 INFO L264 CegarLoopResult]: At program point L48-1(lines 48 63) the Hoare annotation is: false [2020-07-17 17:58:37,725 INFO L264 CegarLoopResult]: At program point L48-2(line 48) the Hoare annotation is: false [2020-07-17 17:58:37,725 INFO L264 CegarLoopResult]: At program point L48-3(line 48) the Hoare annotation is: false [2020-07-17 17:58:37,725 INFO L264 CegarLoopResult]: At program point L148(line 148) the Hoare annotation is: (and (<= main_~this_state~0 0) (= 2 main_~q~0)) [2020-07-17 17:58:37,725 INFO L264 CegarLoopResult]: At program point L148-1(lines 148 163) the Hoare annotation is: (and (<= main_~this_state~0 0) (= 2 main_~q~0)) [2020-07-17 17:58:37,725 INFO L264 CegarLoopResult]: At program point L82(lines 82 93) the Hoare annotation is: false [2020-07-17 17:58:37,726 INFO L264 CegarLoopResult]: At program point L148-2(line 148) the Hoare annotation is: (and (<= 2 main_~q~0) (<= main_~this_state~0 0)) [2020-07-17 17:58:37,726 INFO L264 CegarLoopResult]: At program point L148-3(line 148) the Hoare annotation is: (and (<= main_~this_state~0 0) (= 2 main_~q~0)) [2020-07-17 17:58:37,726 INFO L264 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: (= 0 main_~q~0) [2020-07-17 17:58:37,726 INFO L264 CegarLoopResult]: At program point L248(line 248) the Hoare annotation is: (and (= 3 main_~q~0) (= 2 main_~this_state~0)) [2020-07-17 17:58:37,726 INFO L264 CegarLoopResult]: At program point L248-1(lines 248 263) the Hoare annotation is: (and (= 3 main_~q~0) (= 2 main_~this_state~0)) [2020-07-17 17:58:37,727 INFO L264 CegarLoopResult]: At program point L248-2(line 248) the Hoare annotation is: (and (= 3 main_~q~0) (= 2 main_~this_state~0)) [2020-07-17 17:58:37,727 INFO L264 CegarLoopResult]: At program point L248-3(line 248) the Hoare annotation is: (and (= 3 main_~q~0) (= 2 main_~this_state~0)) [2020-07-17 17:58:37,727 INFO L264 CegarLoopResult]: At program point L116(line 116) the Hoare annotation is: (and (<= main_~this_state~0 0) (= 2 main_~q~0)) [2020-07-17 17:58:37,727 INFO L264 CegarLoopResult]: At program point L116-1(lines 116 131) the Hoare annotation is: (and (<= main_~this_state~0 0) (= 2 main_~q~0)) [2020-07-17 17:58:37,727 INFO L264 CegarLoopResult]: At program point L50(lines 50 61) the Hoare annotation is: false [2020-07-17 17:58:37,727 INFO L264 CegarLoopResult]: At program point L116-2(line 116) the Hoare annotation is: (= 2 main_~q~0) [2020-07-17 17:58:37,727 INFO L264 CegarLoopResult]: At program point L116-3(line 116) the Hoare annotation is: (and (<= main_~this_state~0 0) (= 2 main_~q~0)) [2020-07-17 17:58:37,728 INFO L264 CegarLoopResult]: At program point L381(lines 22 385) the Hoare annotation is: (let ((.cse0 (<= main_~this_state~0 0))) (or (and (= 0 main_~q~0) .cse0) (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) (and (= 3 main_~q~0) (= 2 main_~this_state~0)) (and .cse0 (= 2 main_~q~0)))) [2020-07-17 17:58:37,728 INFO L264 CegarLoopResult]: At program point L348(line 348) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2020-07-17 17:58:37,728 INFO L264 CegarLoopResult]: At program point L348-1(lines 348 363) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2020-07-17 17:58:37,728 INFO L264 CegarLoopResult]: At program point L348-2(line 348) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2020-07-17 17:58:37,728 INFO L264 CegarLoopResult]: At program point L348-3(line 348) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2020-07-17 17:58:37,729 INFO L264 CegarLoopResult]: At program point L216(line 216) the Hoare annotation is: (and (= 3 main_~q~0) (= 2 main_~this_state~0)) [2020-07-17 17:58:37,729 INFO L264 CegarLoopResult]: At program point L183(lines 183 282) the Hoare annotation is: (or (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) (and (= 3 main_~q~0) (= 2 main_~this_state~0))) [2020-07-17 17:58:37,729 INFO L264 CegarLoopResult]: At program point L216-1(lines 216 231) the Hoare annotation is: (and (= 3 main_~q~0) (= 2 main_~this_state~0)) [2020-07-17 17:58:37,729 INFO L264 CegarLoopResult]: At program point L150(lines 150 161) the Hoare annotation is: (and (<= 2 main_~q~0) (<= main_~this_state~0 0)) [2020-07-17 17:58:37,729 INFO L264 CegarLoopResult]: At program point L216-2(line 216) the Hoare annotation is: (and (= 3 main_~q~0) (= 2 main_~this_state~0)) [2020-07-17 17:58:37,730 INFO L264 CegarLoopResult]: At program point L216-3(line 216) the Hoare annotation is: (and (= 3 main_~q~0) (= 2 main_~this_state~0)) [2020-07-17 17:58:37,730 INFO L264 CegarLoopResult]: At program point L316(line 316) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2020-07-17 17:58:37,730 INFO L264 CegarLoopResult]: At program point L283(lines 283 382) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2020-07-17 17:58:37,730 INFO L264 CegarLoopResult]: At program point L316-1(lines 316 331) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2020-07-17 17:58:37,730 INFO L264 CegarLoopResult]: At program point L250(lines 250 261) the Hoare annotation is: (and (= 3 main_~q~0) (= 2 main_~this_state~0)) [2020-07-17 17:58:37,730 INFO L264 CegarLoopResult]: At program point L316-2(line 316) the Hoare annotation is: (or (and (<= 2 main_~q~0) (<= main_~this_state~0 0)) (and (<= 4 main_~q~0) (<= 3 main_~this_state~0))) [2020-07-17 17:58:37,731 INFO L264 CegarLoopResult]: At program point L316-3(line 316) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2020-07-17 17:58:37,731 INFO L264 CegarLoopResult]: At program point L184(line 184) the Hoare annotation is: (and (= 3 main_~q~0) (= 2 main_~this_state~0)) [2020-07-17 17:58:37,731 INFO L264 CegarLoopResult]: At program point L184-1(lines 184 199) the Hoare annotation is: (and (= 3 main_~q~0) (= 2 main_~this_state~0)) [2020-07-17 17:58:37,731 INFO L264 CegarLoopResult]: At program point L118(lines 118 129) the Hoare annotation is: (= 2 main_~q~0) [2020-07-17 17:58:37,731 INFO L264 CegarLoopResult]: At program point L184-2(line 184) the Hoare annotation is: (= 3 main_~q~0) [2020-07-17 17:58:37,731 INFO L264 CegarLoopResult]: At program point L184-3(line 184) the Hoare annotation is: (and (= 3 main_~q~0) (= 2 main_~this_state~0)) [2020-07-17 17:58:37,731 INFO L264 CegarLoopResult]: At program point L19(line 19) the Hoare annotation is: (= 0 main_~q~0) [2020-07-17 17:58:37,732 INFO L264 CegarLoopResult]: At program point L350(lines 350 361) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2020-07-17 17:58:37,732 INFO L264 CegarLoopResult]: At program point L284(line 284) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2020-07-17 17:58:37,732 INFO L264 CegarLoopResult]: At program point L284-1(lines 284 299) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2020-07-17 17:58:37,732 INFO L264 CegarLoopResult]: At program point L218(lines 218 229) the Hoare annotation is: (and (= 3 main_~q~0) (= 2 main_~this_state~0)) [2020-07-17 17:58:37,732 INFO L264 CegarLoopResult]: At program point L284-2(line 284) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2020-07-17 17:58:37,732 INFO L264 CegarLoopResult]: At program point L284-3(line 284) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2020-07-17 17:58:37,733 INFO L264 CegarLoopResult]: At program point L86(lines 86 88) the Hoare annotation is: false [2020-07-17 17:58:37,733 INFO L264 CegarLoopResult]: At program point L318(lines 318 329) the Hoare annotation is: (or (and (<= 2 main_~q~0) (<= main_~this_state~0 0)) (and (<= 4 main_~q~0) (<= 3 main_~this_state~0))) [2020-07-17 17:58:37,733 INFO L264 CegarLoopResult]: At program point L252(line 252) the Hoare annotation is: (and (= 3 main_~q~0) (= 2 main_~this_state~0)) [2020-07-17 17:58:37,733 INFO L264 CegarLoopResult]: At program point L186(lines 186 197) the Hoare annotation is: (= 3 main_~q~0) [2020-07-17 17:58:37,733 INFO L264 CegarLoopResult]: At program point L54(lines 54 56) the Hoare annotation is: false [2020-07-17 17:58:37,734 INFO L264 CegarLoopResult]: At program point L352(line 352) the Hoare annotation is: false [2020-07-17 17:58:37,734 INFO L264 CegarLoopResult]: At program point L286(lines 286 297) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2020-07-17 17:58:37,734 INFO L264 CegarLoopResult]: At program point L154(lines 154 156) the Hoare annotation is: (and (<= 2 main_~q~0) (<= main_~this_state~0 0)) [2020-07-17 17:58:37,734 INFO L264 CegarLoopResult]: At program point L22-2(lines 22 385) the Hoare annotation is: (or (and (= 0 main_~q~0) (<= main_~this_state~0 0)) (and (<= 4 main_~q~0) (= 3 main_~this_state~0))) [2020-07-17 17:58:37,734 INFO L271 CegarLoopResult]: At program point L22-3(lines 22 385) the Hoare annotation is: true [2020-07-17 17:58:37,734 INFO L264 CegarLoopResult]: At program point L254(lines 254 256) the Hoare annotation is: (and (= 3 main_~q~0) (= 2 main_~this_state~0)) [2020-07-17 17:58:37,735 INFO L264 CegarLoopResult]: At program point L122(lines 122 124) the Hoare annotation is: (= 2 main_~q~0) [2020-07-17 17:58:37,735 INFO L264 CegarLoopResult]: At program point L354(lines 354 356) the Hoare annotation is: false [2020-07-17 17:58:37,735 INFO L264 CegarLoopResult]: At program point L222(lines 222 224) the Hoare annotation is: (and (= 3 main_~q~0) (= 2 main_~this_state~0)) [2020-07-17 17:58:37,735 INFO L271 CegarLoopResult]: At program point L90(line 90) the Hoare annotation is: true [2020-07-17 17:58:37,735 INFO L264 CegarLoopResult]: At program point L322(lines 322 324) the Hoare annotation is: (or (and (<= 2 main_~q~0) (<= main_~this_state~0 0)) (and (<= 4 main_~q~0) (<= 3 main_~this_state~0))) [2020-07-17 17:58:37,735 INFO L264 CegarLoopResult]: At program point L190(lines 190 192) the Hoare annotation is: (= 3 main_~q~0) [2020-07-17 17:58:37,735 INFO L271 CegarLoopResult]: At program point L58(line 58) the Hoare annotation is: true [2020-07-17 17:58:37,736 INFO L264 CegarLoopResult]: At program point L290(lines 290 292) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2020-07-17 17:58:37,736 INFO L271 CegarLoopResult]: At program point L158(line 158) the Hoare annotation is: true [2020-07-17 17:58:37,736 INFO L264 CegarLoopResult]: At program point L258(line 258) the Hoare annotation is: (and (= 3 main_~q~0) (= 2 main_~this_state~0)) [2020-07-17 17:58:37,736 INFO L264 CegarLoopResult]: At program point L126(line 126) the Hoare annotation is: (= 2 main_~q~0) [2020-07-17 17:58:37,736 INFO L264 CegarLoopResult]: At program point L27(lines 27 46) the Hoare annotation is: (let ((.cse0 (<= main_~this_state~0 0))) (or (and (= 0 main_~q~0) .cse0) (and (= 3 main_~q~0) (= 2 main_~this_state~0)) (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) (and .cse0 (= 2 main_~q~0)))) [2020-07-17 17:58:37,736 INFO L264 CegarLoopResult]: At program point L358(line 358) the Hoare annotation is: false [2020-07-17 17:58:37,737 INFO L264 CegarLoopResult]: At program point L226(line 226) the Hoare annotation is: (and (= 3 main_~q~0) (= 2 main_~this_state~0)) [2020-07-17 17:58:37,737 INFO L264 CegarLoopResult]: At program point L28(line 28) the Hoare annotation is: (and (= 0 main_~q~0) (<= main_~this_state~0 0)) [2020-07-17 17:58:37,737 INFO L264 CegarLoopResult]: At program point L28-1(lines 28 43) the Hoare annotation is: (and (= 0 main_~q~0) (<= main_~this_state~0 0)) [2020-07-17 17:58:37,737 INFO L264 CegarLoopResult]: At program point L28-2(line 28) the Hoare annotation is: (and (= 0 main_~q~0) (<= main_~this_state~0 0)) [2020-07-17 17:58:37,737 INFO L264 CegarLoopResult]: At program point L28-3(line 28) the Hoare annotation is: (and (= 0 main_~q~0) (<= main_~this_state~0 0)) [2020-07-17 17:58:37,737 INFO L271 CegarLoopResult]: At program point L326(line 326) the Hoare annotation is: true [2020-07-17 17:58:37,738 INFO L264 CegarLoopResult]: At program point L260(line 260) the Hoare annotation is: (and (= 3 main_~q~0) (= 2 main_~this_state~0)) [2020-07-17 17:58:37,738 INFO L264 CegarLoopResult]: At program point L194(line 194) the Hoare annotation is: (= 3 main_~q~0) [2020-07-17 17:58:37,738 INFO L264 CegarLoopResult]: At program point L128(line 128) the Hoare annotation is: (<= 4 main_~q~0) [2020-07-17 17:58:37,738 INFO L264 CegarLoopResult]: At program point L360(line 360) the Hoare annotation is: false [2020-07-17 17:58:37,738 INFO L264 CegarLoopResult]: At program point L294(line 294) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2020-07-17 17:58:37,738 INFO L264 CegarLoopResult]: At program point L228(line 228) the Hoare annotation is: (and (= 3 main_~q~0) (= 2 main_~this_state~0)) [2020-07-17 17:58:37,739 INFO L264 CegarLoopResult]: At program point L30(lines 30 41) the Hoare annotation is: (and (= 0 main_~q~0) (<= main_~this_state~0 0)) [2020-07-17 17:58:37,739 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 13 390) the Hoare annotation is: true [2020-07-17 17:58:37,739 INFO L264 CegarLoopResult]: At program point L196(line 196) the Hoare annotation is: (= 3 main_~q~0) [2020-07-17 17:58:37,739 INFO L264 CegarLoopResult]: At program point L64(line 64) the Hoare annotation is: false [2020-07-17 17:58:37,739 INFO L264 CegarLoopResult]: At program point L64-1(lines 64 79) the Hoare annotation is: false [2020-07-17 17:58:37,739 INFO L264 CegarLoopResult]: At program point L64-2(line 64) the Hoare annotation is: false [2020-07-17 17:58:37,739 INFO L264 CegarLoopResult]: At program point L64-3(line 64) the Hoare annotation is: false [2020-07-17 17:58:37,740 INFO L264 CegarLoopResult]: At program point L296(line 296) the Hoare annotation is: (and (= 3 main_~q~0) (= 3 main_~this_state~0)) [2020-07-17 17:58:37,740 INFO L264 CegarLoopResult]: At program point L164(line 164) the Hoare annotation is: (and (<= main_~this_state~0 0) (= 2 main_~q~0)) [2020-07-17 17:58:37,740 INFO L264 CegarLoopResult]: At program point L164-1(lines 164 179) the Hoare annotation is: (and (<= main_~this_state~0 0) (= 2 main_~q~0)) [2020-07-17 17:58:37,740 INFO L264 CegarLoopResult]: At program point L164-2(line 164) the Hoare annotation is: (and (<= 2 main_~q~0) (<= main_~this_state~0 0)) [2020-07-17 17:58:37,740 INFO L264 CegarLoopResult]: At program point L164-3(line 164) the Hoare annotation is: (and (<= main_~this_state~0 0) (= 2 main_~q~0)) [2020-07-17 17:58:37,740 INFO L264 CegarLoopResult]: At program point L264(line 264) the Hoare annotation is: (and (= 3 main_~q~0) (= 2 main_~this_state~0)) [2020-07-17 17:58:37,741 INFO L264 CegarLoopResult]: At program point L264-1(lines 264 279) the Hoare annotation is: (and (= 3 main_~q~0) (= 2 main_~this_state~0)) [2020-07-17 17:58:37,741 INFO L264 CegarLoopResult]: At program point L264-2(line 264) the Hoare annotation is: (and (= 3 main_~q~0) (= 2 main_~this_state~0)) [2020-07-17 17:58:37,741 INFO L264 CegarLoopResult]: At program point L264-3(line 264) the Hoare annotation is: (and (= 3 main_~q~0) (= 2 main_~this_state~0)) [2020-07-17 17:58:37,741 INFO L264 CegarLoopResult]: At program point L132(line 132) the Hoare annotation is: (and (<= main_~this_state~0 0) (= 2 main_~q~0)) [2020-07-17 17:58:37,741 INFO L264 CegarLoopResult]: At program point L99(lines 99 182) the Hoare annotation is: (or (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) (and (= 3 main_~q~0) (= 2 main_~this_state~0)) (and (<= main_~this_state~0 0) (= 2 main_~q~0))) [2020-07-17 17:58:37,742 INFO L264 CegarLoopResult]: At program point L132-1(lines 132 147) the Hoare annotation is: (and (<= main_~this_state~0 0) (= 2 main_~q~0)) [2020-07-17 17:58:37,742 INFO L264 CegarLoopResult]: At program point L66(lines 66 77) the Hoare annotation is: false [2020-07-17 17:58:37,742 INFO L264 CegarLoopResult]: At program point L132-2(line 132) the Hoare annotation is: (and (<= 2 main_~q~0) (<= main_~this_state~0 0)) [2020-07-17 17:58:37,742 INFO L264 CegarLoopResult]: At program point L132-3(line 132) the Hoare annotation is: (and (<= main_~this_state~0 0) (= 2 main_~q~0)) [2020-07-17 17:58:37,742 INFO L264 CegarLoopResult]: At program point L364(line 364) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2020-07-17 17:58:37,742 INFO L264 CegarLoopResult]: At program point L364-1(lines 364 379) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2020-07-17 17:58:37,742 INFO L264 CegarLoopResult]: At program point L364-2(line 364) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2020-07-17 17:58:37,743 INFO L264 CegarLoopResult]: At program point L364-3(line 364) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2020-07-17 17:58:37,743 INFO L264 CegarLoopResult]: At program point L232(line 232) the Hoare annotation is: (and (= 3 main_~q~0) (= 2 main_~this_state~0)) [2020-07-17 17:58:37,743 INFO L264 CegarLoopResult]: At program point L232-1(lines 232 247) the Hoare annotation is: (and (= 3 main_~q~0) (= 2 main_~this_state~0)) [2020-07-17 17:58:37,743 INFO L264 CegarLoopResult]: At program point L166(lines 166 177) the Hoare annotation is: (and (<= 2 main_~q~0) (<= main_~this_state~0 0)) [2020-07-17 17:58:37,743 INFO L264 CegarLoopResult]: At program point L232-2(line 232) the Hoare annotation is: (or (and (<= 2 main_~q~0) (<= main_~this_state~0 0)) (and (<= 3 main_~q~0) (= 2 main_~this_state~0))) [2020-07-17 17:58:37,743 INFO L264 CegarLoopResult]: At program point L232-3(line 232) the Hoare annotation is: (and (= 3 main_~q~0) (= 2 main_~this_state~0)) [2020-07-17 17:58:37,744 INFO L264 CegarLoopResult]: At program point L100(line 100) the Hoare annotation is: (and (<= main_~this_state~0 0) (= 2 main_~q~0)) [2020-07-17 17:58:37,744 INFO L264 CegarLoopResult]: At program point L100-1(lines 100 115) the Hoare annotation is: (and (<= main_~this_state~0 0) (= 2 main_~q~0)) [2020-07-17 17:58:37,744 INFO L264 CegarLoopResult]: At program point L34(lines 34 36) the Hoare annotation is: (and (= 0 main_~q~0) (<= main_~this_state~0 0)) [2020-07-17 17:58:37,744 INFO L264 CegarLoopResult]: At program point L100-2(line 100) the Hoare annotation is: (= 2 main_~q~0) [2020-07-17 17:58:37,744 INFO L264 CegarLoopResult]: At program point L100-3(line 100) the Hoare annotation is: (and (<= main_~this_state~0 0) (= 2 main_~q~0)) [2020-07-17 17:58:37,744 INFO L264 CegarLoopResult]: At program point L332(line 332) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2020-07-17 17:58:37,744 INFO L264 CegarLoopResult]: At program point L332-1(lines 332 347) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2020-07-17 17:58:37,745 INFO L264 CegarLoopResult]: At program point L266(lines 266 277) the Hoare annotation is: (and (= 3 main_~q~0) (= 2 main_~this_state~0)) [2020-07-17 17:58:37,745 INFO L264 CegarLoopResult]: At program point L332-2(line 332) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2020-07-17 17:58:37,745 INFO L264 CegarLoopResult]: At program point L332-3(line 332) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2020-07-17 17:58:37,745 INFO L264 CegarLoopResult]: At program point L200(line 200) the Hoare annotation is: (and (= 3 main_~q~0) (= 2 main_~this_state~0)) [2020-07-17 17:58:37,745 INFO L264 CegarLoopResult]: At program point L200-1(lines 200 215) the Hoare annotation is: (and (= 3 main_~q~0) (= 2 main_~this_state~0)) [2020-07-17 17:58:37,746 INFO L264 CegarLoopResult]: At program point L134(lines 134 145) the Hoare annotation is: (and (<= 2 main_~q~0) (<= main_~this_state~0 0)) [2020-07-17 17:58:37,746 INFO L264 CegarLoopResult]: At program point L200-2(line 200) the Hoare annotation is: (= 3 main_~q~0) [2020-07-17 17:58:37,746 INFO L264 CegarLoopResult]: At program point L200-3(line 200) the Hoare annotation is: (and (= 3 main_~q~0) (= 2 main_~this_state~0)) [2020-07-17 17:58:37,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 05:58:37 BoogieIcfgContainer [2020-07-17 17:58:37,768 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 17:58:37,771 INFO L168 Benchmark]: Toolchain (without parser) took 8693.83 ms. Allocated memory was 137.9 MB in the beginning and 337.1 MB in the end (delta: 199.2 MB). Free memory was 102.5 MB in the beginning and 236.1 MB in the end (delta: -133.6 MB). Peak memory consumption was 186.6 MB. Max. memory is 7.1 GB. [2020-07-17 17:58:37,771 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 137.9 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-17 17:58:37,772 INFO L168 Benchmark]: CACSL2BoogieTranslator took 386.68 ms. Allocated memory was 137.9 MB in the beginning and 202.4 MB in the end (delta: 64.5 MB). Free memory was 102.1 MB in the beginning and 180.9 MB in the end (delta: -78.8 MB). Peak memory consumption was 26.3 MB. Max. memory is 7.1 GB. [2020-07-17 17:58:37,773 INFO L168 Benchmark]: Boogie Preprocessor took 49.27 ms. Allocated memory is still 202.4 MB. Free memory was 180.9 MB in the beginning and 178.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-07-17 17:58:37,774 INFO L168 Benchmark]: RCFGBuilder took 721.29 ms. Allocated memory is still 202.4 MB. Free memory was 178.3 MB in the beginning and 142.3 MB in the end (delta: 36.0 MB). Peak memory consumption was 36.0 MB. Max. memory is 7.1 GB. [2020-07-17 17:58:37,775 INFO L168 Benchmark]: TraceAbstraction took 7528.14 ms. Allocated memory was 202.4 MB in the beginning and 337.1 MB in the end (delta: 134.7 MB). Free memory was 142.3 MB in the beginning and 236.1 MB in the end (delta: -93.8 MB). Peak memory consumption was 161.9 MB. Max. memory is 7.1 GB. [2020-07-17 17:58:37,778 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 137.9 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 386.68 ms. Allocated memory was 137.9 MB in the beginning and 202.4 MB in the end (delta: 64.5 MB). Free memory was 102.1 MB in the beginning and 180.9 MB in the end (delta: -78.8 MB). Peak memory consumption was 26.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 49.27 ms. Allocated memory is still 202.4 MB. Free memory was 180.9 MB in the beginning and 178.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 721.29 ms. Allocated memory is still 202.4 MB. Free memory was 178.3 MB in the beginning and 142.3 MB in the end (delta: 36.0 MB). Peak memory consumption was 36.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 7528.14 ms. Allocated memory was 202.4 MB in the beginning and 337.1 MB in the end (delta: 134.7 MB). Free memory was 142.3 MB in the beginning and 236.1 MB in the end (delta: -93.8 MB). Peak memory consumption was 161.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 389]: 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: 22]: Loop Invariant Derived loop invariant: (((0 == q && this_state <= 0) || (4 <= q && 3 == this_state)) || (3 == q && 2 == this_state)) || (this_state <= 0 && 2 == q) - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: (0 == q && this_state <= 0) || (4 <= q && 3 == this_state) - ProcedureContractResult [Line: 13]: Procedure Contract for main Derived contract for procedure main: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 191 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.3s, OverallIterations: 11, TraceHistogramMax: 3, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1996 SDtfs, 2887 SDslu, 123 SDs, 0 SdLazy, 1238 SolverSat, 97 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 73 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=243occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 11 MinimizatonAttempts, 61 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 191 LocationsWithAnnotation, 191 PreInvPairs, 355 NumberOfFragments, 1069 HoareAnnotationTreeSize, 191 FomulaSimplifications, 3354 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 191 FomulaSimplificationsInter, 3787 FormulaSimplificationTreeSizeReductionInter, 2.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 476 NumberOfCodeBlocks, 476 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 465 ConstructedInterpolants, 0 QuantifiedInterpolants, 39149 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 56/56 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...