/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/locks/test_locks_5.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 13:22:01,129 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 13:22:01,133 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 13:22:01,155 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 13:22:01,155 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 13:22:01,158 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 13:22:01,160 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 13:22:01,172 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 13:22:01,176 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 13:22:01,179 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 13:22:01,181 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 13:22:01,184 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 13:22:01,184 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 13:22:01,187 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 13:22:01,189 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 13:22:01,191 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 13:22:01,193 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 13:22:01,194 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 13:22:01,195 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 13:22:01,201 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 13:22:01,206 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 13:22:01,211 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 13:22:01,212 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 13:22:01,213 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 13:22:01,216 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-07 13:22:01,226 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 13:22:01,228 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 13:22:01,229 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 13:22:01,230 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-07 13:22:01,258 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 13:22:01,260 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 13:22:01,262 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 13:22:01,265 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 13:22:01,266 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 13:22:01,266 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 13:22:01,266 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 13:22:01,266 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 13:22:01,266 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 13:22:01,267 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 13:22:01,267 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 13:22:01,267 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 13:22:01,267 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 13:22:01,267 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 13:22:01,268 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 13:22:01,268 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-07 13:22:01,268 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 13:22:01,268 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 13:22:01,269 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 13:22:01,269 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 13:22:01,269 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-07 13:22:01,269 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 13:22:01,269 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-07 13:22:01,569 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 13:22:01,583 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 13:22:01,587 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 13:22:01,589 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 13:22:01,589 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 13:22:01,590 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/locks/test_locks_5.c [2020-07-07 13:22:01,657 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33439fc69/344ea283b6a24ac98a74234b10134be9/FLAGf172a38d2 [2020-07-07 13:22:02,138 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 13:22:02,139 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/locks/test_locks_5.c [2020-07-07 13:22:02,153 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33439fc69/344ea283b6a24ac98a74234b10134be9/FLAGf172a38d2 [2020-07-07 13:22:02,470 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33439fc69/344ea283b6a24ac98a74234b10134be9 [2020-07-07 13:22:02,480 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 13:22:02,482 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 13:22:02,483 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 13:22:02,484 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 13:22:02,488 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 13:22:02,489 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 01:22:02" (1/1) ... [2020-07-07 13:22:02,492 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@626c5122 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:22:02, skipping insertion in model container [2020-07-07 13:22:02,492 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 01:22:02" (1/1) ... [2020-07-07 13:22:02,501 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 13:22:02,524 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 13:22:02,786 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 13:22:02,793 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 13:22:02,830 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 13:22:02,846 INFO L208 MainTranslator]: Completed translation [2020-07-07 13:22:02,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:22:02 WrapperNode [2020-07-07 13:22:02,847 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 13:22:02,848 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 13:22:02,848 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 13:22:02,848 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 13:22:02,951 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:22:02" (1/1) ... [2020-07-07 13:22:02,951 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:22:02" (1/1) ... [2020-07-07 13:22:02,960 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:22:02" (1/1) ... [2020-07-07 13:22:02,961 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:22:02" (1/1) ... [2020-07-07 13:22:02,971 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:22:02" (1/1) ... [2020-07-07 13:22:02,978 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:22:02" (1/1) ... [2020-07-07 13:22:02,979 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:22:02" (1/1) ... [2020-07-07 13:22:02,981 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 13:22:02,982 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 13:22:02,982 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 13:22:02,982 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 13:22:02,983 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:22:02" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 13:22:03,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 13:22:03,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 13:22:03,045 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 13:22:03,045 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 13:22:03,045 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 13:22:03,045 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 13:22:03,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 13:22:03,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 13:22:03,325 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 13:22:03,326 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-07 13:22:03,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 01:22:03 BoogieIcfgContainer [2020-07-07 13:22:03,334 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 13:22:03,347 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 13:22:03,347 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 13:22:03,352 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 13:22:03,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 01:22:02" (1/3) ... [2020-07-07 13:22:03,354 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10f84005 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 01:22:03, skipping insertion in model container [2020-07-07 13:22:03,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:22:02" (2/3) ... [2020-07-07 13:22:03,355 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10f84005 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 01:22:03, skipping insertion in model container [2020-07-07 13:22:03,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 01:22:03" (3/3) ... [2020-07-07 13:22:03,357 INFO L109 eAbstractionObserver]: Analyzing ICFG test_locks_5.c [2020-07-07 13:22:03,374 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-07 13:22:03,384 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 13:22:03,420 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 13:22:03,453 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 13:22:03,453 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 13:22:03,454 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-07 13:22:03,454 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 13:22:03,454 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 13:22:03,454 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 13:22:03,454 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 13:22:03,454 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 13:22:03,470 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states. [2020-07-07 13:22:03,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-07-07 13:22:03,481 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:22:03,482 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:22:03,483 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:22:03,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:22:03,490 INFO L82 PathProgramCache]: Analyzing trace with hash -1222569836, now seen corresponding path program 1 times [2020-07-07 13:22:03,499 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:22:03,500 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1773920886] [2020-07-07 13:22:03,500 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:22:03,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:22:03,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:22:03,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:22:03,723 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:22:03,726 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1773920886] [2020-07-07 13:22:03,728 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:22:03,728 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 13:22:03,729 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365859833] [2020-07-07 13:22:03,735 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 13:22:03,736 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:22:03,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 13:22:03,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:22:03,752 INFO L87 Difference]: Start difference. First operand 68 states. Second operand 3 states. [2020-07-07 13:22:03,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:22:03,851 INFO L93 Difference]: Finished difference Result 147 states and 198 transitions. [2020-07-07 13:22:03,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 13:22:03,854 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 43 [2020-07-07 13:22:03,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:22:03,866 INFO L225 Difference]: With dead ends: 147 [2020-07-07 13:22:03,867 INFO L226 Difference]: Without dead ends: 96 [2020-07-07 13:22:03,871 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:22:03,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2020-07-07 13:22:03,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 94. [2020-07-07 13:22:03,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2020-07-07 13:22:03,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 120 transitions. [2020-07-07 13:22:03,927 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 120 transitions. Word has length 43 [2020-07-07 13:22:03,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:22:03,928 INFO L479 AbstractCegarLoop]: Abstraction has 94 states and 120 transitions. [2020-07-07 13:22:03,928 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 13:22:03,929 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 120 transitions. [2020-07-07 13:22:03,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-07-07 13:22:03,931 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:22:03,931 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:22:03,932 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 13:22:03,932 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:22:03,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:22:03,933 INFO L82 PathProgramCache]: Analyzing trace with hash 1252462105, now seen corresponding path program 1 times [2020-07-07 13:22:03,933 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:22:03,933 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1733882851] [2020-07-07 13:22:03,933 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:22:03,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:22:04,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:22:04,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:22:04,019 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:22:04,021 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1733882851] [2020-07-07 13:22:04,021 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:22:04,021 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 13:22:04,022 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771582739] [2020-07-07 13:22:04,026 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 13:22:04,029 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:22:04,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 13:22:04,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:22:04,031 INFO L87 Difference]: Start difference. First operand 94 states and 120 transitions. Second operand 3 states. [2020-07-07 13:22:04,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:22:04,084 INFO L93 Difference]: Finished difference Result 116 states and 148 transitions. [2020-07-07 13:22:04,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 13:22:04,085 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 44 [2020-07-07 13:22:04,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:22:04,087 INFO L225 Difference]: With dead ends: 116 [2020-07-07 13:22:04,088 INFO L226 Difference]: Without dead ends: 114 [2020-07-07 13:22:04,089 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:22:04,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-07-07 13:22:04,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 94. [2020-07-07 13:22:04,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2020-07-07 13:22:04,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 119 transitions. [2020-07-07 13:22:04,112 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 119 transitions. Word has length 44 [2020-07-07 13:22:04,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:22:04,112 INFO L479 AbstractCegarLoop]: Abstraction has 94 states and 119 transitions. [2020-07-07 13:22:04,113 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 13:22:04,113 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 119 transitions. [2020-07-07 13:22:04,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-07-07 13:22:04,114 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:22:04,115 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:22:04,115 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 13:22:04,115 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:22:04,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:22:04,116 INFO L82 PathProgramCache]: Analyzing trace with hash 755286414, now seen corresponding path program 1 times [2020-07-07 13:22:04,116 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:22:04,117 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1993575747] [2020-07-07 13:22:04,117 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:22:04,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:22:04,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:22:04,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:22:04,180 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:22:04,181 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1993575747] [2020-07-07 13:22:04,181 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:22:04,181 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 13:22:04,182 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962389316] [2020-07-07 13:22:04,182 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 13:22:04,182 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:22:04,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 13:22:04,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:22:04,183 INFO L87 Difference]: Start difference. First operand 94 states and 119 transitions. Second operand 3 states. [2020-07-07 13:22:04,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:22:04,231 INFO L93 Difference]: Finished difference Result 226 states and 299 transitions. [2020-07-07 13:22:04,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 13:22:04,232 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 44 [2020-07-07 13:22:04,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:22:04,234 INFO L225 Difference]: With dead ends: 226 [2020-07-07 13:22:04,234 INFO L226 Difference]: Without dead ends: 157 [2020-07-07 13:22:04,239 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:22:04,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2020-07-07 13:22:04,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 155. [2020-07-07 13:22:04,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2020-07-07 13:22:04,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 200 transitions. [2020-07-07 13:22:04,269 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 200 transitions. Word has length 44 [2020-07-07 13:22:04,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:22:04,269 INFO L479 AbstractCegarLoop]: Abstraction has 155 states and 200 transitions. [2020-07-07 13:22:04,270 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 13:22:04,270 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 200 transitions. [2020-07-07 13:22:04,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-07-07 13:22:04,272 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:22:04,272 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:22:04,272 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-07 13:22:04,273 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:22:04,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:22:04,273 INFO L82 PathProgramCache]: Analyzing trace with hash -1863120818, now seen corresponding path program 1 times [2020-07-07 13:22:04,273 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:22:04,274 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1732881033] [2020-07-07 13:22:04,274 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:22:04,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:22:04,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:22:04,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:22:04,332 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:22:04,332 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1732881033] [2020-07-07 13:22:04,333 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:22:04,333 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 13:22:04,333 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453011885] [2020-07-07 13:22:04,334 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 13:22:04,334 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:22:04,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 13:22:04,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:22:04,335 INFO L87 Difference]: Start difference. First operand 155 states and 200 transitions. Second operand 3 states. [2020-07-07 13:22:04,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:22:04,432 INFO L93 Difference]: Finished difference Result 191 states and 246 transitions. [2020-07-07 13:22:04,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 13:22:04,433 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 45 [2020-07-07 13:22:04,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:22:04,436 INFO L225 Difference]: With dead ends: 191 [2020-07-07 13:22:04,436 INFO L226 Difference]: Without dead ends: 189 [2020-07-07 13:22:04,437 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:22:04,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2020-07-07 13:22:04,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 155. [2020-07-07 13:22:04,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2020-07-07 13:22:04,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 198 transitions. [2020-07-07 13:22:04,464 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 198 transitions. Word has length 45 [2020-07-07 13:22:04,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:22:04,465 INFO L479 AbstractCegarLoop]: Abstraction has 155 states and 198 transitions. [2020-07-07 13:22:04,465 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 13:22:04,466 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 198 transitions. [2020-07-07 13:22:04,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-07-07 13:22:04,468 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:22:04,468 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:22:04,468 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-07 13:22:04,469 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:22:04,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:22:04,469 INFO L82 PathProgramCache]: Analyzing trace with hash 1939288392, now seen corresponding path program 1 times [2020-07-07 13:22:04,469 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:22:04,470 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1655218310] [2020-07-07 13:22:04,470 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:22:04,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:22:04,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:22:04,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:22:04,523 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:22:04,524 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1655218310] [2020-07-07 13:22:04,524 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:22:04,524 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 13:22:04,525 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381007787] [2020-07-07 13:22:04,525 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 13:22:04,525 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:22:04,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 13:22:04,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:22:04,526 INFO L87 Difference]: Start difference. First operand 155 states and 198 transitions. Second operand 3 states. [2020-07-07 13:22:04,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:22:04,587 INFO L93 Difference]: Finished difference Result 403 states and 528 transitions. [2020-07-07 13:22:04,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 13:22:04,588 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 45 [2020-07-07 13:22:04,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:22:04,591 INFO L225 Difference]: With dead ends: 403 [2020-07-07 13:22:04,591 INFO L226 Difference]: Without dead ends: 273 [2020-07-07 13:22:04,592 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:22:04,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2020-07-07 13:22:04,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 271. [2020-07-07 13:22:04,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 271 states. [2020-07-07 13:22:04,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 346 transitions. [2020-07-07 13:22:04,629 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 346 transitions. Word has length 45 [2020-07-07 13:22:04,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:22:04,629 INFO L479 AbstractCegarLoop]: Abstraction has 271 states and 346 transitions. [2020-07-07 13:22:04,630 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 13:22:04,630 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 346 transitions. [2020-07-07 13:22:04,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-07-07 13:22:04,632 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:22:04,632 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:22:04,632 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-07 13:22:04,633 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:22:04,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:22:04,633 INFO L82 PathProgramCache]: Analyzing trace with hash -11355582, now seen corresponding path program 1 times [2020-07-07 13:22:04,633 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:22:04,634 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [55816630] [2020-07-07 13:22:04,634 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:22:04,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:22:04,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:22:04,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:22:04,673 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:22:04,675 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [55816630] [2020-07-07 13:22:04,675 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:22:04,675 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 13:22:04,675 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592975559] [2020-07-07 13:22:04,676 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 13:22:04,676 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:22:04,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 13:22:04,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:22:04,679 INFO L87 Difference]: Start difference. First operand 271 states and 346 transitions. Second operand 3 states. [2020-07-07 13:22:04,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:22:04,740 INFO L93 Difference]: Finished difference Result 739 states and 956 transitions. [2020-07-07 13:22:04,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 13:22:04,740 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-07-07 13:22:04,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:22:04,744 INFO L225 Difference]: With dead ends: 739 [2020-07-07 13:22:04,744 INFO L226 Difference]: Without dead ends: 493 [2020-07-07 13:22:04,749 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:22:04,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2020-07-07 13:22:04,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 491. [2020-07-07 13:22:04,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 491 states. [2020-07-07 13:22:04,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 618 transitions. [2020-07-07 13:22:04,826 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 618 transitions. Word has length 46 [2020-07-07 13:22:04,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:22:04,828 INFO L479 AbstractCegarLoop]: Abstraction has 491 states and 618 transitions. [2020-07-07 13:22:04,828 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 13:22:04,828 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 618 transitions. [2020-07-07 13:22:04,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-07-07 13:22:04,835 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:22:04,836 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:22:04,836 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-07 13:22:04,836 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:22:04,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:22:04,841 INFO L82 PathProgramCache]: Analyzing trace with hash 338056749, now seen corresponding path program 1 times [2020-07-07 13:22:04,841 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:22:04,841 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [366499723] [2020-07-07 13:22:04,841 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:22:04,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:22:04,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:22:04,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:22:04,915 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:22:04,916 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [366499723] [2020-07-07 13:22:04,916 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:22:04,916 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 13:22:04,917 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013398015] [2020-07-07 13:22:04,917 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 13:22:04,917 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:22:04,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 13:22:04,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:22:04,918 INFO L87 Difference]: Start difference. First operand 491 states and 618 transitions. Second operand 3 states. [2020-07-07 13:22:04,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:22:04,972 INFO L93 Difference]: Finished difference Result 599 states and 748 transitions. [2020-07-07 13:22:04,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 13:22:04,973 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-07-07 13:22:04,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:22:04,977 INFO L225 Difference]: With dead ends: 599 [2020-07-07 13:22:04,977 INFO L226 Difference]: Without dead ends: 597 [2020-07-07 13:22:04,978 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:22:04,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2020-07-07 13:22:05,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 491. [2020-07-07 13:22:05,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 491 states. [2020-07-07 13:22:05,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 610 transitions. [2020-07-07 13:22:05,025 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 610 transitions. Word has length 46 [2020-07-07 13:22:05,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:22:05,026 INFO L479 AbstractCegarLoop]: Abstraction has 491 states and 610 transitions. [2020-07-07 13:22:05,026 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 13:22:05,026 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 610 transitions. [2020-07-07 13:22:05,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-07-07 13:22:05,028 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:22:05,028 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:22:05,028 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-07 13:22:05,028 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:22:05,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:22:05,029 INFO L82 PathProgramCache]: Analyzing trace with hash -144915038, now seen corresponding path program 1 times [2020-07-07 13:22:05,029 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:22:05,029 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [656041242] [2020-07-07 13:22:05,029 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:22:05,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:22:05,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:22:05,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:22:05,067 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:22:05,067 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [656041242] [2020-07-07 13:22:05,067 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:22:05,068 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 13:22:05,068 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981346152] [2020-07-07 13:22:05,068 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 13:22:05,068 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:22:05,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 13:22:05,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:22:05,069 INFO L87 Difference]: Start difference. First operand 491 states and 610 transitions. Second operand 3 states. [2020-07-07 13:22:05,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:22:05,134 INFO L93 Difference]: Finished difference Result 591 states and 724 transitions. [2020-07-07 13:22:05,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 13:22:05,135 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2020-07-07 13:22:05,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:22:05,139 INFO L225 Difference]: With dead ends: 591 [2020-07-07 13:22:05,140 INFO L226 Difference]: Without dead ends: 589 [2020-07-07 13:22:05,140 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:22:05,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 589 states. [2020-07-07 13:22:05,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 589 to 491. [2020-07-07 13:22:05,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 491 states. [2020-07-07 13:22:05,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 602 transitions. [2020-07-07 13:22:05,192 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 602 transitions. Word has length 47 [2020-07-07 13:22:05,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:22:05,192 INFO L479 AbstractCegarLoop]: Abstraction has 491 states and 602 transitions. [2020-07-07 13:22:05,192 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 13:22:05,193 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 602 transitions. [2020-07-07 13:22:05,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-07-07 13:22:05,194 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:22:05,194 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:22:05,194 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-07 13:22:05,195 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:22:05,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:22:05,195 INFO L82 PathProgramCache]: Analyzing trace with hash -351776260, now seen corresponding path program 1 times [2020-07-07 13:22:05,195 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:22:05,196 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1668250533] [2020-07-07 13:22:05,196 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:22:05,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:22:05,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:22:05,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:22:05,226 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:22:05,227 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1668250533] [2020-07-07 13:22:05,227 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:22:05,227 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 13:22:05,227 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974594466] [2020-07-07 13:22:05,228 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 13:22:05,228 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:22:05,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 13:22:05,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:22:05,229 INFO L87 Difference]: Start difference. First operand 491 states and 602 transitions. Second operand 3 states. [2020-07-07 13:22:05,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:22:05,332 INFO L93 Difference]: Finished difference Result 1373 states and 1691 transitions. [2020-07-07 13:22:05,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 13:22:05,333 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2020-07-07 13:22:05,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:22:05,336 INFO L225 Difference]: With dead ends: 1373 [2020-07-07 13:22:05,336 INFO L226 Difference]: Without dead ends: 491 [2020-07-07 13:22:05,339 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:22:05,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2020-07-07 13:22:05,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 491. [2020-07-07 13:22:05,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 491 states. [2020-07-07 13:22:05,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 570 transitions. [2020-07-07 13:22:05,377 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 570 transitions. Word has length 47 [2020-07-07 13:22:05,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:22:05,377 INFO L479 AbstractCegarLoop]: Abstraction has 491 states and 570 transitions. [2020-07-07 13:22:05,377 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 13:22:05,377 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 570 transitions. [2020-07-07 13:22:05,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-07-07 13:22:05,378 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:22:05,379 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, 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] [2020-07-07 13:22:05,379 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-07 13:22:05,379 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:22:05,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:22:05,380 INFO L82 PathProgramCache]: Analyzing trace with hash 2062829121, now seen corresponding path program 1 times [2020-07-07 13:22:05,380 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:22:05,380 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [417464683] [2020-07-07 13:22:05,380 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:22:05,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:22:05,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:22:05,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:22:05,409 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:22:05,409 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [417464683] [2020-07-07 13:22:05,409 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:22:05,410 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 13:22:05,410 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569915105] [2020-07-07 13:22:05,410 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 13:22:05,411 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:22:05,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 13:22:05,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:22:05,411 INFO L87 Difference]: Start difference. First operand 491 states and 570 transitions. Second operand 3 states. [2020-07-07 13:22:05,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:22:05,452 INFO L93 Difference]: Finished difference Result 491 states and 570 transitions. [2020-07-07 13:22:05,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 13:22:05,452 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 48 [2020-07-07 13:22:05,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:22:05,453 INFO L225 Difference]: With dead ends: 491 [2020-07-07 13:22:05,453 INFO L226 Difference]: Without dead ends: 0 [2020-07-07 13:22:05,454 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:22:05,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-07 13:22:05,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-07 13:22:05,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-07 13:22:05,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-07 13:22:05,456 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 48 [2020-07-07 13:22:05,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:22:05,456 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-07 13:22:05,456 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 13:22:05,456 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-07 13:22:05,456 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-07 13:22:05,457 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-07 13:22:05,459 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-07 13:22:06,167 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2020-07-07 13:22:06,373 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2020-07-07 13:22:06,799 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2020-07-07 13:22:07,099 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2020-07-07 13:22:07,277 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2020-07-07 13:22:07,669 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2020-07-07 13:22:07,784 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-07-07 13:22:07,785 INFO L271 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-07-07 13:22:07,785 INFO L271 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-07-07 13:22:07,785 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-07 13:22:07,786 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-07 13:22:07,786 INFO L271 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-07-07 13:22:07,786 INFO L271 CegarLoopResult]: At program point mainEXIT(lines 4 93) the Hoare annotation is: true [2020-07-07 13:22:07,786 INFO L264 CegarLoopResult]: At program point L85(line 85) the Hoare annotation is: (= 1 main_~lk5~0) [2020-07-07 13:22:07,787 INFO L271 CegarLoopResult]: At program point L19(line 19) the Hoare annotation is: true [2020-07-07 13:22:07,788 INFO L264 CegarLoopResult]: At program point L69(line 69) the Hoare annotation is: (let ((.cse4 (= 0 main_~p3~0)) (.cse3 (= 1 main_~lk4~0)) (.cse2 (= 0 main_~p5~0)) (.cse0 (= 1 main_~lk2~0)) (.cse5 (= 0 main_~p4~0)) (.cse1 (= 1 main_~lk3~0)) (.cse6 (= 1 main_~lk5~0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse0 .cse5 .cse6) (and .cse0 .cse1 .cse6 .cse3) (and .cse4 .cse0 .cse5 .cse2) (and .cse4 .cse0 .cse6 .cse3) (and .cse4 .cse0 .cse2 .cse3) (and .cse0 .cse5 .cse1 .cse2) (and .cse0 .cse5 .cse1 .cse6))) [2020-07-07 13:22:07,789 INFO L264 CegarLoopResult]: At program point L53-1(lines 24 88) the Hoare annotation is: (let ((.cse7 (= 0 main_~p2~0)) (.cse4 (= 0 main_~p3~0)) (.cse2 (= 0 main_~p1~0)) (.cse3 (= 1 main_~lk4~0)) (.cse0 (= 1 main_~lk2~0)) (.cse5 (= 0 main_~p4~0)) (.cse1 (= 1 main_~lk3~0)) (.cse6 (= 1 main_~lk1~0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse0 .cse5 .cse6) (and .cse7 .cse1 .cse6 .cse3) (and .cse5 .cse7 .cse1 .cse6) (and .cse4 .cse0 .cse6 .cse3) (and .cse4 .cse7 .cse6 .cse3) (and .cse7 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse7 .cse6) (and .cse5 .cse7 .cse1 .cse2) (and .cse4 .cse0 .cse5 .cse2) (and .cse4 .cse5 .cse7 .cse2) (and .cse4 .cse7 .cse2 .cse3) (and .cse4 .cse0 .cse2 .cse3) (and .cse0 .cse5 .cse1 .cse2) (and .cse0 .cse1 .cse6 .cse3) (and .cse0 .cse5 .cse1 .cse6))) [2020-07-07 13:22:07,791 INFO L264 CegarLoopResult]: At program point L78-1(lines 24 88) the Hoare annotation is: (or (= 0 main_~p5~0) (= 1 main_~lk5~0)) [2020-07-07 13:22:07,791 INFO L271 CegarLoopResult]: At program point L12(line 12) the Hoare annotation is: true [2020-07-07 13:22:07,791 INFO L264 CegarLoopResult]: At program point L45-1(lines 24 88) the Hoare annotation is: (let ((.cse0 (= 0 main_~p2~0)) (.cse1 (= 0 main_~p1~0)) (.cse3 (= 1 main_~lk2~0)) (.cse2 (= 1 main_~lk1~0))) (or (and .cse0 .cse1) (and .cse0 .cse2) (and .cse3 .cse1) (and .cse3 .cse2))) [2020-07-07 13:22:07,792 INFO L271 CegarLoopResult]: At program point L12-1(line 12) the Hoare annotation is: true [2020-07-07 13:22:07,792 INFO L271 CegarLoopResult]: At program point L12-2(line 12) the Hoare annotation is: true [2020-07-07 13:22:07,792 INFO L264 CegarLoopResult]: At program point L70(line 70) the Hoare annotation is: (let ((.cse4 (= 0 main_~p3~0)) (.cse3 (= 1 main_~lk4~0)) (.cse2 (= 0 main_~p5~0)) (.cse0 (= 1 main_~lk2~0)) (.cse5 (= 0 main_~p4~0)) (.cse1 (= 1 main_~lk3~0)) (.cse6 (= 1 main_~lk5~0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse0 .cse5 .cse6) (and .cse0 .cse1 .cse6 .cse3) (and .cse4 .cse0 .cse5 .cse2) (and .cse4 .cse0 .cse6 .cse3) (and .cse4 .cse0 .cse2 .cse3) (and .cse0 .cse5 .cse1 .cse2) (and .cse0 .cse5 .cse1 .cse6))) [2020-07-07 13:22:07,794 INFO L271 CegarLoopResult]: At program point L37(line 37) the Hoare annotation is: true [2020-07-07 13:22:07,794 INFO L271 CegarLoopResult]: At program point L29(line 29) the Hoare annotation is: true [2020-07-07 13:22:07,795 INFO L264 CegarLoopResult]: At program point L54(line 54) the Hoare annotation is: (let ((.cse5 (= 0 main_~p1~0)) (.cse3 (= 0 main_~p3~0)) (.cse0 (= 1 main_~lk2~0)) (.cse4 (= 0 main_~p2~0)) (.cse1 (= 1 main_~lk3~0)) (.cse2 (= 1 main_~lk1~0))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse4 .cse2) (and .cse4 .cse1 .cse5) (and .cse3 .cse4 .cse5) (and .cse0 .cse1 .cse5) (and .cse3 .cse0 .cse5) (and .cse3 .cse0 .cse2) (and .cse4 .cse1 .cse2))) [2020-07-07 13:22:07,795 INFO L264 CegarLoopResult]: At program point L79(line 79) the Hoare annotation is: (let ((.cse0 (= 1 main_~lk4~0))) (or (and (= 1 main_~lk5~0) .cse0) (and (= 0 main_~p5~0) .cse0))) [2020-07-07 13:22:07,795 INFO L264 CegarLoopResult]: At program point L46(line 46) the Hoare annotation is: (or (= 0 main_~p1~0) (= 1 main_~lk1~0)) [2020-07-07 13:22:07,795 INFO L271 CegarLoopResult]: At program point L13(line 13) the Hoare annotation is: true [2020-07-07 13:22:07,796 INFO L271 CegarLoopResult]: At program point mainFINAL(lines 4 93) the Hoare annotation is: true [2020-07-07 13:22:07,797 INFO L264 CegarLoopResult]: At program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 91) the Hoare annotation is: false [2020-07-07 13:22:07,797 INFO L264 CegarLoopResult]: At program point L63-1(lines 24 88) the Hoare annotation is: (let ((.cse3 (= 0 main_~p5~0)) (.cse4 (= 1 main_~lk4~0)) (.cse0 (= 0 main_~p3~0)) (.cse2 (= 0 main_~p2~0)) (.cse6 (= 1 main_~lk2~0)) (.cse1 (= 0 main_~p4~0)) (.cse7 (= 1 main_~lk3~0)) (.cse5 (= 1 main_~lk5~0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse2 .cse3 .cse4) (and .cse0 .cse2 .cse5 .cse4) (and .cse0 .cse6 .cse1 .cse5) (and .cse1 .cse2 .cse7 .cse3) (and .cse0 .cse6 .cse1 .cse3) (and .cse0 .cse6 .cse5 .cse4) (and .cse2 .cse7 .cse5 .cse4) (and .cse6 .cse7 .cse3 .cse4) (and .cse2 .cse7 .cse3 .cse4) (and .cse1 .cse2 .cse7 .cse5) (and .cse6 .cse7 .cse5 .cse4) (and .cse6 .cse1 .cse7 .cse3) (and .cse0 .cse6 .cse3 .cse4) (and .cse0 .cse1 .cse2 .cse5) (and .cse6 .cse1 .cse7 .cse5))) [2020-07-07 13:22:07,797 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 4 93) the Hoare annotation is: true [2020-07-07 13:22:07,797 INFO L271 CegarLoopResult]: At program point L22(line 22) the Hoare annotation is: true [2020-07-07 13:22:07,798 INFO L264 CegarLoopResult]: At program point L80(line 80) the Hoare annotation is: (let ((.cse0 (= 1 main_~lk4~0))) (or (and (= 1 main_~lk5~0) .cse0) (and (= 0 main_~p5~0) .cse0))) [2020-07-07 13:22:07,799 INFO L271 CegarLoopResult]: At program point L6(line 6) the Hoare annotation is: true [2020-07-07 13:22:07,799 INFO L271 CegarLoopResult]: At program point L6-1(line 6) the Hoare annotation is: true [2020-07-07 13:22:07,799 INFO L264 CegarLoopResult]: At program point L64(line 64) the Hoare annotation is: (let ((.cse5 (= 1 main_~lk2~0)) (.cse1 (= 0 main_~p4~0)) (.cse7 (= 1 main_~lk5~0)) (.cse6 (= 1 main_~lk3~0)) (.cse0 (= 0 main_~p3~0)) (.cse2 (= 0 main_~p2~0)) (.cse3 (= 0 main_~p5~0)) (.cse4 (= 1 main_~lk1~0)) (.cse8 (= 1 main_~lk4~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse1 .cse6 .cse7 .cse4) (and .cse0 .cse5 .cse1 .cse3 .cse4) (and .cse0 .cse5 .cse1 .cse7 .cse4) (and .cse0 .cse2 .cse7 .cse4 .cse8) (and .cse0 .cse1 .cse2 .cse7 .cse4) (and .cse0 .cse5 .cse3 .cse4 .cse8) (and .cse5 .cse6 .cse7 .cse4 .cse8) (and .cse1 .cse2 .cse6 .cse3 .cse4) (and .cse2 .cse6 .cse7 .cse4 .cse8) (and .cse5 .cse1 .cse6 .cse3 .cse4) (and .cse5 .cse6 .cse3 .cse4 .cse8) (and .cse0 .cse5 .cse7 .cse4 .cse8) (and .cse1 .cse2 .cse6 .cse7 .cse4) (and .cse2 .cse6 .cse3 .cse4 .cse8) (and .cse0 .cse2 .cse3 .cse4 .cse8))) [2020-07-07 13:22:07,800 INFO L271 CegarLoopResult]: At program point L31(line 31) the Hoare annotation is: true [2020-07-07 13:22:07,800 INFO L271 CegarLoopResult]: At program point L89(lines 5 93) the Hoare annotation is: true [2020-07-07 13:22:07,800 INFO L271 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: true [2020-07-07 13:22:07,800 INFO L271 CegarLoopResult]: At program point L15-1(line 15) the Hoare annotation is: true [2020-07-07 13:22:07,800 INFO L271 CegarLoopResult]: At program point L15-2(line 15) the Hoare annotation is: true [2020-07-07 13:22:07,801 INFO L264 CegarLoopResult]: At program point L73-1(lines 24 88) the Hoare annotation is: (let ((.cse1 (= 1 main_~lk5~0)) (.cse2 (= 1 main_~lk4~0)) (.cse0 (= 0 main_~p4~0)) (.cse3 (= 0 main_~p5~0))) (or (and .cse0 .cse1) (and .cse1 .cse2) (and .cse3 .cse2) (and .cse0 .cse3))) [2020-07-07 13:22:07,801 INFO L271 CegarLoopResult]: At program point L7(line 7) the Hoare annotation is: true [2020-07-07 13:22:07,801 INFO L264 CegarLoopResult]: At program point L65(line 65) the Hoare annotation is: (let ((.cse5 (= 1 main_~lk2~0)) (.cse1 (= 0 main_~p4~0)) (.cse7 (= 1 main_~lk5~0)) (.cse6 (= 1 main_~lk3~0)) (.cse0 (= 0 main_~p3~0)) (.cse2 (= 0 main_~p2~0)) (.cse3 (= 0 main_~p5~0)) (.cse4 (= 1 main_~lk1~0)) (.cse8 (= 1 main_~lk4~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse1 .cse6 .cse7 .cse4) (and .cse0 .cse5 .cse1 .cse3 .cse4) (and .cse0 .cse5 .cse1 .cse7 .cse4) (and .cse0 .cse2 .cse7 .cse4 .cse8) (and .cse0 .cse1 .cse2 .cse7 .cse4) (and .cse5 .cse6 .cse7 .cse4 .cse8) (and .cse0 .cse5 .cse3 .cse4 .cse8) (and .cse1 .cse2 .cse6 .cse3 .cse4) (and .cse2 .cse6 .cse7 .cse4 .cse8) (and .cse5 .cse1 .cse6 .cse3 .cse4) (and .cse5 .cse6 .cse3 .cse4 .cse8) (and .cse0 .cse5 .cse7 .cse4 .cse8) (and .cse1 .cse2 .cse6 .cse7 .cse4) (and .cse2 .cse6 .cse3 .cse4 .cse8) (and .cse0 .cse2 .cse3 .cse4 .cse8))) [2020-07-07 13:22:07,802 INFO L264 CegarLoopResult]: At program point L57-1(lines 24 88) the Hoare annotation is: (let ((.cse1 (= 0 main_~p4~0)) (.cse0 (= 1 main_~lk2~0)) (.cse3 (= 1 main_~lk5~0)) (.cse5 (= 0 main_~p3~0)) (.cse9 (= 0 main_~p1~0)) (.cse7 (= 0 main_~p2~0)) (.cse2 (= 1 main_~lk3~0)) (.cse6 (= 0 main_~p5~0)) (.cse4 (= 1 main_~lk1~0)) (.cse8 (= 1 main_~lk4~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse0 .cse1 .cse6 .cse4) (and .cse5 .cse7 .cse3 .cse4 .cse8) (and .cse7 .cse2 .cse9 .cse3 .cse8) (and .cse0 .cse1 .cse2 .cse9 .cse3) (and .cse1 .cse7 .cse2 .cse6 .cse4) (and .cse5 .cse7 .cse9 .cse3 .cse8) (and .cse7 .cse2 .cse3 .cse4 .cse8) (and .cse5 .cse0 .cse1 .cse9 .cse3) (and .cse0 .cse2 .cse6 .cse4 .cse8) (and .cse1 .cse7 .cse2 .cse3 .cse4) (and .cse5 .cse0 .cse9 .cse3 .cse8) (and .cse5 .cse7 .cse6 .cse4 .cse8) (and .cse5 .cse0 .cse1 .cse6 .cse9) (and .cse5 .cse1 .cse7 .cse6 .cse4) (and .cse0 .cse2 .cse6 .cse9 .cse8) (and .cse5 .cse0 .cse1 .cse3 .cse4) (and .cse1 .cse7 .cse2 .cse9 .cse3) (and .cse5 .cse1 .cse7 .cse3 .cse4) (and .cse1 .cse7 .cse2 .cse6 .cse9) (and .cse0 .cse2 .cse3 .cse4 .cse8) (and .cse7 .cse2 .cse6 .cse9 .cse8) (and .cse5 .cse0 .cse6 .cse4 .cse8) (and .cse5 .cse1 .cse7 .cse9 .cse3) (and .cse0 .cse1 .cse2 .cse6 .cse9) (and .cse0 .cse2 .cse9 .cse3 .cse8) (and .cse5 .cse0 .cse6 .cse9 .cse8) (and .cse0 .cse1 .cse2 .cse6 .cse4) (and .cse5 .cse1 .cse7 .cse6 .cse9) (and .cse5 .cse0 .cse3 .cse4 .cse8) (and .cse5 .cse7 .cse6 .cse9 .cse8) (and .cse7 .cse2 .cse6 .cse4 .cse8))) [2020-07-07 13:22:07,802 INFO L271 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: true [2020-07-07 13:22:07,802 INFO L264 CegarLoopResult]: At program point L49-1(lines 24 88) the Hoare annotation is: (let ((.cse3 (= 0 main_~p3~0)) (.cse0 (= 1 main_~lk2~0)) (.cse5 (= 0 main_~p1~0)) (.cse4 (= 0 main_~p2~0)) (.cse1 (= 1 main_~lk3~0)) (.cse2 (= 1 main_~lk1~0))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse4 .cse2) (and .cse4 .cse1 .cse5) (and .cse3 .cse4 .cse5) (and .cse0 .cse1 .cse5) (and .cse3 .cse0 .cse2) (and .cse3 .cse0 .cse5) (and .cse4 .cse1 .cse2))) [2020-07-07 13:22:07,803 INFO L264 CegarLoopResult]: At program point L74(line 74) the Hoare annotation is: (let ((.cse0 (= 0 main_~p4~0)) (.cse3 (= 0 main_~p5~0)) (.cse1 (= 1 main_~lk3~0)) (.cse2 (= 1 main_~lk5~0)) (.cse4 (= 1 main_~lk4~0))) (or (and .cse0 .cse1 .cse2) (and .cse1 .cse3 .cse4) (and .cse0 .cse1 .cse3) (and .cse1 .cse2 .cse4))) [2020-07-07 13:22:07,803 INFO L271 CegarLoopResult]: At program point L41(lines 41 43) the Hoare annotation is: true [2020-07-07 13:22:07,803 INFO L264 CegarLoopResult]: At program point L41-2(lines 24 88) the Hoare annotation is: (or (= 0 main_~p1~0) (= 1 main_~lk1~0)) [2020-07-07 13:22:07,803 INFO L271 CegarLoopResult]: At program point L33(line 33) the Hoare annotation is: true [2020-07-07 13:22:07,804 INFO L264 CegarLoopResult]: At program point L58(line 58) the Hoare annotation is: (let ((.cse7 (= 0 main_~p2~0)) (.cse4 (= 0 main_~p3~0)) (.cse2 (= 0 main_~p1~0)) (.cse5 (= 0 main_~p4~0)) (.cse0 (= 1 main_~lk2~0)) (.cse1 (= 1 main_~lk3~0)) (.cse6 (= 1 main_~lk1~0)) (.cse3 (= 1 main_~lk4~0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse0 .cse5 .cse6) (and .cse7 .cse1 .cse6 .cse3) (and .cse5 .cse7 .cse1 .cse6) (and .cse4 .cse0 .cse6 .cse3) (and .cse4 .cse7 .cse6 .cse3) (and .cse7 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse7 .cse6) (and .cse5 .cse7 .cse1 .cse2) (and .cse4 .cse0 .cse5 .cse2) (and .cse4 .cse5 .cse7 .cse2) (and .cse4 .cse7 .cse2 .cse3) (and .cse4 .cse0 .cse2 .cse3) (and .cse0 .cse5 .cse1 .cse2) (and .cse0 .cse5 .cse1 .cse6) (and .cse0 .cse1 .cse6 .cse3))) [2020-07-07 13:22:07,804 INFO L271 CegarLoopResult]: At program point L25(line 25) the Hoare annotation is: true [2020-07-07 13:22:07,804 INFO L271 CegarLoopResult]: At program point L25-1(line 25) the Hoare annotation is: true [2020-07-07 13:22:07,805 INFO L271 CegarLoopResult]: At program point L25-2(line 25) the Hoare annotation is: true [2020-07-07 13:22:07,805 INFO L264 CegarLoopResult]: At program point L50(line 50) the Hoare annotation is: (let ((.cse0 (= 0 main_~p2~0)) (.cse1 (= 0 main_~p1~0)) (.cse3 (= 1 main_~lk2~0)) (.cse2 (= 1 main_~lk1~0))) (or (and .cse0 .cse1) (and .cse0 .cse2) (and .cse3 .cse1) (and .cse3 .cse2))) [2020-07-07 13:22:07,805 INFO L271 CegarLoopResult]: At program point L83-1(lines 24 88) the Hoare annotation is: true [2020-07-07 13:22:07,805 INFO L264 CegarLoopResult]: At program point L75(line 75) the Hoare annotation is: (let ((.cse0 (= 0 main_~p4~0)) (.cse3 (= 0 main_~p5~0)) (.cse1 (= 1 main_~lk3~0)) (.cse2 (= 1 main_~lk5~0)) (.cse4 (= 1 main_~lk4~0))) (or (and .cse0 .cse1 .cse2) (and .cse1 .cse3 .cse4) (and .cse0 .cse1 .cse3) (and .cse1 .cse2 .cse4))) [2020-07-07 13:22:07,805 INFO L271 CegarLoopResult]: At program point L42(line 42) the Hoare annotation is: true [2020-07-07 13:22:07,806 INFO L271 CegarLoopResult]: At program point L9(line 9) the Hoare annotation is: true [2020-07-07 13:22:07,806 INFO L271 CegarLoopResult]: At program point L9-1(line 9) the Hoare annotation is: true [2020-07-07 13:22:07,806 INFO L271 CegarLoopResult]: At program point L9-2(line 9) the Hoare annotation is: true [2020-07-07 13:22:07,806 INFO L264 CegarLoopResult]: At program point L92(line 92) the Hoare annotation is: false [2020-07-07 13:22:07,806 INFO L271 CegarLoopResult]: At program point L26(lines 26 28) the Hoare annotation is: true [2020-07-07 13:22:07,817 INFO L264 CegarLoopResult]: At program point L84(line 84) the Hoare annotation is: (= 1 main_~lk5~0) [2020-07-07 13:22:07,817 INFO L264 CegarLoopResult]: At program point L84-1(lines 5 93) the Hoare annotation is: false [2020-07-07 13:22:07,817 INFO L271 CegarLoopResult]: At program point L18(line 18) the Hoare annotation is: true [2020-07-07 13:22:07,817 INFO L271 CegarLoopResult]: At program point L18-1(line 18) the Hoare annotation is: true [2020-07-07 13:22:07,818 INFO L271 CegarLoopResult]: At program point L18-2(line 18) the Hoare annotation is: true [2020-07-07 13:22:07,818 INFO L271 CegarLoopResult]: At program point L10(line 10) the Hoare annotation is: true [2020-07-07 13:22:07,818 INFO L271 CegarLoopResult]: At program point L35(line 35) the Hoare annotation is: true [2020-07-07 13:22:07,818 INFO L264 CegarLoopResult]: At program point L68-1(lines 24 88) the Hoare annotation is: (let ((.cse0 (= 0 main_~p4~0)) (.cse4 (= 0 main_~p5~0)) (.cse1 (= 1 main_~lk3~0)) (.cse3 (= 0 main_~p3~0)) (.cse2 (= 1 main_~lk5~0)) (.cse5 (= 1 main_~lk4~0))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse4 .cse5) (and .cse1 .cse4 .cse5) (and .cse3 .cse0 .cse2) (and .cse3 .cse0 .cse4) (and .cse0 .cse1 .cse4) (and .cse1 .cse2 .cse5) (and .cse3 .cse2 .cse5))) [2020-07-07 13:22:07,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 01:22:07 BoogieIcfgContainer [2020-07-07 13:22:07,844 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 13:22:07,848 INFO L168 Benchmark]: Toolchain (without parser) took 5364.44 ms. Allocated memory was 144.7 MB in the beginning and 283.6 MB in the end (delta: 138.9 MB). Free memory was 104.1 MB in the beginning and 254.8 MB in the end (delta: -150.7 MB). Peak memory consumption was 146.9 MB. Max. memory is 7.1 GB. [2020-07-07 13:22:07,849 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 144.7 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-07 13:22:07,860 INFO L168 Benchmark]: CACSL2BoogieTranslator took 364.17 ms. Allocated memory is still 144.7 MB. Free memory was 103.9 MB in the beginning and 93.9 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2020-07-07 13:22:07,861 INFO L168 Benchmark]: Boogie Preprocessor took 133.48 ms. Allocated memory was 144.7 MB in the beginning and 203.4 MB in the end (delta: 58.7 MB). Free memory was 93.9 MB in the beginning and 181.7 MB in the end (delta: -87.8 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2020-07-07 13:22:07,862 INFO L168 Benchmark]: RCFGBuilder took 352.12 ms. Allocated memory is still 203.4 MB. Free memory was 181.7 MB in the beginning and 163.7 MB in the end (delta: 17.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 7.1 GB. [2020-07-07 13:22:07,863 INFO L168 Benchmark]: TraceAbstraction took 4497.63 ms. Allocated memory was 203.4 MB in the beginning and 283.6 MB in the end (delta: 80.2 MB). Free memory was 163.1 MB in the beginning and 254.8 MB in the end (delta: -91.7 MB). Peak memory consumption was 147.2 MB. Max. memory is 7.1 GB. [2020-07-07 13:22:07,875 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 144.7 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 364.17 ms. Allocated memory is still 144.7 MB. Free memory was 103.9 MB in the beginning and 93.9 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 133.48 ms. Allocated memory was 144.7 MB in the beginning and 203.4 MB in the end (delta: 58.7 MB). Free memory was 93.9 MB in the beginning and 181.7 MB in the end (delta: -87.8 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 352.12 ms. Allocated memory is still 203.4 MB. Free memory was 181.7 MB in the beginning and 163.7 MB in the end (delta: 17.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4497.63 ms. Allocated memory was 203.4 MB in the beginning and 283.6 MB in the end (delta: 80.2 MB). Free memory was 163.1 MB in the beginning and 254.8 MB in the end (delta: -91.7 MB). Peak memory consumption was 147.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 91]: 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: 24]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: 1 - ProcedureContractResult [Line: 4]: Procedure Contract for main Derived contract for procedure main: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 68 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.0s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 956 SDtfs, 332 SDslu, 668 SDs, 0 SdLazy, 49 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=491occurred in iteration=6, 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, 10 MinimizatonAttempts, 266 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 68 LocationsWithAnnotation, 68 PreInvPairs, 956 NumberOfFragments, 2378 HoareAnnotationTreeSize, 68 FomulaSimplifications, 9164 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 68 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 1.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...